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A Study To Evaluate The Effects And Safety Of Treatment, Treatment Withdrawal, Followed By Re-Treatment With CP-690,550 In Subjects With Moderate To Severe Chronic Plaque Psoriasis

Primary Purpose

Psoriasis

Status
Completed
Phase
Phase 3
Locations
International
Study Type
Interventional
Intervention
CP-690,550
CP-690,550
CP-690,550
CP-690,550
Sponsored by
Pfizer
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Psoriasis focused on measuring OPT Retreatment, OPT, chronic, moderate, severe, treatment, safety, treatment withdrawal, retreatment, retreatment withdrawal, CP-690,550, Psoriasis Vulgaris, Plaque Psoriasis, tofacitinib, Xeljanz, nail psoriasis, Jak-inhibitor, oral treatment, Pruritus, Itch, DLQI, rebound, intermittent, retreat

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • 18 years or older with diagnosis of plaque-type psoriasis (psoriasis vulgaris) for at least 12 months prior to first dose of study drug;
  • Psoriasis Area and Severity Index (PASI) score of 12 or greater, AND Physician's Global Assessment (PGA) score of 3 (moderate) or 4 (severe); Psoriasis covering at least 10% of body surface area;
  • No evidence of active or latent or inadequately treated infection with Tuberculosis or other serious infections.

Exclusion Criteria:

  • Non-plaque or drug induced forms of psoriasis;
  • Cannot discontinue current oral, injectable or topical therapy for psoriasis or cannot discontinue phototherapy (Psoralen Ultraviolet A; Ultraviolet B).
  • Any uncontrolled significant medical condition.

Sites / Locations

  • Horizon Research Group, Inc.
  • Radiant Research, Inc.
  • Center for Dermatology Clinical Research, Inc.
  • Associates In Research, Inc.
  • Dermatology Research Associates
  • Expresscare Medical
  • Dermatology Specialists, Inc.
  • University of California San Francisco
  • Longmont Clinic, PC
  • New England Research Associates, LLC
  • Florida Academic Dermatology Center
  • International Dermatology Research, Inc.
  • Park Avenue Dermatology, PA
  • Ameriderm Research
  • Miami Research Associates
  • Altman Dermatology Associates
  • Springfield Clinic, LLP
  • Springfield Clinic
  • Deaconess Clinic Downtown
  • DMIA
  • DermResearch, PLLC
  • Quest Diagnostics
  • Northeast Dermatology Associates
  • ActivMed Practices and Research, Inc.
  • Michigan Center for Research Corporation dba Michigan Center for Skin Care Research
  • Minnesota Clinical Study Center
  • Comprehensive Clinical Research
  • Duke University Medical Center
  • Dermatology Consulting Services
  • Dermatology Associates
  • New Hanover Medical Group, PA
  • New Hanover Medical Research
  • PMG Research of Wilmington LLC
  • Piedmont Imaging
  • Piedmont Medical Research
  • Triad Dermatology, PA
  • Jewish Hospital
  • Radiant Research, Inc.
  • University Hospitals Case Medical Center
  • Oregon Medical Research Center, PC
  • Rhode Island Hospital
  • Medical Research South, LLC
  • Office of Marta T. Hampton, MD
  • Dermatology & Laser Center of Charleston
  • Office of John Michael Humeniuk, MD
  • Radiant Research, Inc.
  • Dermatology Research Associates
  • Office of Stephen Miller, MD, PA
  • Center for Clinical Studies
  • Mountain State Clinical Research
  • Centro de Investigaciones Dermatologicas
  • Centro de Investigaciones Dermatologicas
  • IMAI (Instituto Medico de Asistencia e Investigaciones)
  • Dr. Glenn & Partners
  • Premier Dermatology
  • Skin and Cancer Foundation
  • Uniradiology
  • Emeritus Research
  • Malvern Diagnostic Imaging
  • Instituto de Dermatologia e Est�ca do Brasil LTDA - IDERJ
  • Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo
  • Universitetska Mnogoprofilna Bolnitsa Za Aktivno Lechenie- Dr Georgi Stranski- Pleven
  • Tsentar za kozhno-venericheski zaboliavania� EOOD
  • Mnogoprofilna Bolnitsa Za Aktivno Lechenie- Tokuda Bolnitsa Sofia- Sofia
  • Universitetska mnogoprofilna bolnitsa za aktivno lechenie- Alexandrovska- Sofia
  • MBAL na Voennomeditsinska akademia- Sofia
  • Derm Research @ 888 Inc.
  • UBC Department of Dermatology and Skin Science
  • Nexus Clinical Research
  • NewLab Clinical Research Inc.
  • Dermatrials Research
  • Windsor Clinical Research
  • Innovaderm Research Inc
  • Centre de Recherche Dermatologique du Quebec metropolitain
  • Department of Dermatology, Aarhus University Hospital
  • Gentofte Hospital
  • Hudklinikken
  • Tampere University Hospital, Department of Dermatology and Venreology
  • Dermatology Department, Andreas Sygros Hospital
  • University Hospital of Ioannina/Dermatology Department
  • "Papageorgiou" General Hospital / B' Dermatology and Venereology Clinic of University of Thessalonik
  • PT & R
  • Univerzitna Nemocnica, Bratislava
  • Fakultna Nemocnica Trnava
  • Whipps Cross University Hospital, Department of Dermatology
  • Department of Dermatology
  • Salford Royal NHS Foundation Trust

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm 4

Arm Type

Experimental

Experimental

Experimental

Experimental

Arm Label

Active Treatment (10 mg) BID / Placebo BID

Active Treatment (10 mg) BID

Active Treatment (5 mg) BID / Placebo BID

Active Treatment (5 mg) BID

Arm Description

Continuous active treatment (CP-690,550) for 24 weeks, followed by treatment withdrawal (placebo treatment) for 4-16 weeks, followed by active treatment (CP-690,550) for 16-28 weeks

Continuous active treatment (CP-690,550) for 56 weeks

Continuous active treatment (CP-690,550) for 24 weeks, followed by treatment withdrawal (placebo treatment) for 4-16 weeks, followed by active treatment (CP-690,550) for 16-28 weeks

Continuous active treatment (CP-690,550) for 56 weeks

Outcomes

Primary Outcome Measures

Percentage of Participants Maintaining a Psoriasis Area and Severity Index 75 (PASI75) Response During the Double-Blind Treatment Withdrawal Period (Period B)
The PASI quantifies the severity of a participant's psoriasis based on both lesion severity and the percent of body surface area (BSA) affected. PASI is a composite scoring by the investigator of degree of erythema, induration, and scaling (each scored separately) for each of 4 body regions (head and neck, upper limbs, trunk [including axillae and groin], and lower limbs [including buttocks), with adjustment for the percent of BSA involved for each body region and for the proportion of the body region to the whole body. The PASI score can vary in increments of 0.1 and range from 0.0 to 72.0, with higher scores representing greater severity of psoriasis. PASI75 response defined as at least a 75 percent (%) reduction in PASI relative to baseline.
Percentage of Participants Maintaining a Physician's Global Assessment (PGA) Response During the Double-Blind Treatment Withdrawal (Period B)
The PGA of psoriasis is scored on a 5-point scale, reflecting a global consideration of the erythema, induration, and scaling across all psoriatic lesions. Average erythema, induration, and scaling are scored separately over the whole body according to a 5-point severity scale (0=clear; 1=almost clear; 2=mild; 3=moderate; and 4=severe). PGA response defined as 0 (clear) or 1 (almost clear).
Percentage of Participants Achieving a PASI75 Response During CP-690,550 Re-Treatment (Period C) Among Those Who Had a Greater Than (>)50% Reduction of Visit A4/Week 24 PASI Response During Double-Blind Treatment Withdrawal (Period B)
The PASI quantifies the severity of a participant's psoriasis based on both lesion severity and the percent of BSA affected. PASI is a composite scoring by the investigator of degree of erythema, induration, and scaling (each scored separately) for each of 4 body regions (head and neck, upper limbs, trunk [including axillae and groin], and lower limbs [including buttocks), with adjustment for the percent of BSA involved for each body region and for the proportion of the body region to the whole body. PASI75 response is defined as at least 75% reduction in PASI relative to Baseline/Day 1. Baseline defined as the last observation up to first dosing date in Period C. PASI responses at each period were relative to Baseline-A, where Baseline-A was defined as the last observation up to first dosing date in Period A.
Percentage of Participants Achieving a PGA Response of Clear or Almost Clear During CP-690,550 Re-treatment (Period C) Among Participants Who Had a PGA of Mild, Moderate, or Severe During Double-Blind Treatment Withdrawal (Period B)
The PGA of psoriasis is scored on a 5-point scale, reflecting a global consideration of the erythema, induration, and scaling across all psoriatic lesions. Average erythema, induration, and scaling are scored separately over the whole body according to a 5-point severity scale (0=clear; 1=almost clear; 2=mild; 3=moderate; and 4=severe).

Secondary Outcome Measures

Median Time to PASI75 Response During Initial CP-690,550 Treatment (Period A)
The PASI quantifies the severity of a participant's psoriasis based on both lesion severity and the percent of BSA affected. PASI is a composite scoring by the investigator of degree of erythema, induration, and scaling (each scored separately) for each of 4 body regions (head and neck, upper limbs, trunk [including axillae and groin], and lower limbs [including buttocks), with adjustment for the percent of BSA involved for each body region and for the proportion of the body region to the whole body. PASI75 response defined as 75% reduction in PASI relative to baseline.
Median Time to PGA Response of Clear or Almost Clear During Initial CP-690,550 Treatment (Period A)
The PGA of psoriasis is scored on a 5-point scale, reflecting a global consideration of the erythema, induration, and scaling across all psoriatic lesions. Average erythema, induration, and scaling are scored separately over the whole body according to a 5-point severity scale (0=clear; 1=almost clear; 2=mild; 3=moderate; and 4=severe). PGA response defined as 0 (clear) or 1 (almost clear).
Percentage of Participants Achieving Both a PASI50-75 Response and Dermatology Life Quality Index (DLQI) ≤5 Response During Initial CP-690,550 Treatment (Period A)
PASI50-75 response defined as a reduction of at least 50% but less than 75%. The DLQI is a general dermatology questionnaire that consists of 10 items that assess participant health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment. The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline.
Percentage of Participant Maintaining an Adequate Response During the Double-Blind Treatment Withdrawal (Period B)
Adequate response defined as >50% reduction of the Visit A4/Week 24 (last visit in Period A) PASI response.
Median Time to Loss of Adequate Response During the Double-Blind Treatment Withdrawal (Period B)
Adequate response defined as >50% reduction of the Visit A4/Week 24 (last visit in Period A) PASI response.
Percentage of Participants With PASI Score ≥125% of Baseline-A or New Type of Psoriasis (Pustular, Erythrodermic) During the Period Between Week 24 and Week 32 (Period B)
The PASI score can vary in increments of 0.1 and range from 0.0 to 72.0, with higher scores representing greater severity of psoriasis. PASI responses at each period are relative to Baseline-A where Baseline-A was defined as the last observation up to first dosing date in Period A. Weeks 4 and 8 are relative to the Period B baseline and are the same as Weeks 28 and 32, which are relative to Period A baseline. 95% confidence interval is constructed using the normal approximation to the binomial distribution of two-sample proportion.
Percentage of Participants With PASI Score ≥125% of Baseline-A or New Type of Psoriasis (Pustular, Erythrodermic) During the Double-Blind Treatment Withdrawal (Period B)
The PASI score can vary in increments of 0.1 and range from 0.0 to 72.0, with higher scores representing greater severity of psoriasis. PASI responses at each period are relative to Baseline-A where Baseline-A was defined as the last observation up to first dosing date in Period A. 95% confidence interval is constructed using the normal approximation to the binomial distribution of two-sample proportion.
Percentage of Participants Maintaining Adequate PASI Response and Maintaining PGA Response (Clear or Almost Clear) During the Double-Blind Treatment Withdrawal (Period B)
Adequate PASI response defined as less than or equal to 50% reduction of the Visit A4/Week 24 PASI Response.
Median Time to Loss of >50% of the Visit A4/Week 24 PASI Response and Loss of PGA Response (Clear or Almost Clear) During the Double-Blind Treatment Withdrawal (Period B)
Percentage of Participants Regaining PASI75 and PGA Response (Clear or Almost Clear) During CP-690,550 Re-Treatment (Period C) Among Participants Who Lost Both PASI75 Response and PGA Response (Clear or Almost Clear) at the Beginning of Period C
PASI75 response defined as at least a 75% reduction in PASI relative to baseline.
Median Time to Regain PASI75 and PGA Response (Clear or Almost Clear) During CP-690,550 Re-Treatment (Period C) Among Participants Who Lost Both PASI75 Response and PGA Response (Clear or Almost Clear) at the Beginning of Period C
PASI75 response defined as at least a 75% reduction in PASI relative to baseline.
Percentage of Participants Regaining PASI75 and PGA Response (PGA of Clear or Almost Clear) During CP-690,550 Re-Treatment (Period C) Who Had Lost Both PASI75 Response and PGA Response at the Beginning of Period C
PASI75 response defined as at least a 75% reduction in PASI relative to baseline. PASI responses at each period are relative to Baseline-A, where Baseline-A is defined as the last observation up to first dosing date in Period A. 95% confidence interval constructed using the normal approximation to the binomial distribution of one-sample proportion.
Median Time to PASI75 Response During CP-690,550 Re-Treatment (Period C) For Those Who Had a >50% Reduction of Visit A4/Week 24 PASI Response During Double-Blind Treatment Withdrawal (Period B)
PASI75 response defined as at least a 75% reduction in PASI relative to baseline.
Median Time to PGA Response of Clear or Almost Clear During CP-690,550 Re-Treatment (Period C) Among Participants Who Had a PGA of Mild, Moderate, or Severe at the Beginning of Period C
Percentage of Participants With a PASI75 Response During the Initial CP-690,550 Treatment (Period A)
PASI75 response defined as at least a 75% reduction in PASI relative to baseline. Baseline defined as the last observation up to the first dosing date in Period A. 95% confidence interval is constructed using the normal approximation to the binomial distribution of one-sample proportion.
Percentage of Participants With a PASI75 Response During Double-Blind Withdrawal Treatment (Period B)
PASI75 response defined as at least a 75% reduction in PASI relative to baseline. PASI responses in each period are relative to Baseline-A, where Baseline-A is defined as the last observation until first dosing date in Period A. 95% confidence interval is constructed using the normal approximation to the binomial distribution of one-sample proportion.
Percentage of Participants With a PASI75 Response During the CP-690,550 Re-Treatment (Period C)
PASI75 response defined as at least a 75% reduction in PASI relative to baseline. PASI responses in each period are relative to Baseline-A, where Baseline-A is defined as the last observation until first dosing date in Period A. 95% confidence interval is constructed using the normal approximation to the binomial distribution of one-sample proportion.
Percentage of Participants With PGA Response of Clear or Almost Clear During the Initial CP-690,550 Treatment (Period A)
PGA response was defined as 0 (clear) or 1 (almost clear) on a 5-point scale where 0=clear; 1=almost clear; 2=mild; 3=moderate; and 4=severe. 95% confidence interval is constructed using the normal approximation to the binomial distribution of one-sample proportion.
Percentage of Participants With PGA Response of Clear or Almost Clear During Double-Blind Withdrawal Treatment (Period B)
PGA response was defined as 0 (clear) or 1 (almost clear) on a 5-point scale where 0=clear; 1=almost clear; 2=mild; 3=moderate; and 4=severe. 95% confidence interval is constructed using the normal approximation to the binomial distribution of two-sample proportion.
Percentage of Participants With PGA Response of Clear or Almost Clear During the CP-690,550 Re-Treatment (Period C)
PGA response was defined as 0 (clear) or 1 (almost clear) on a 5-point scale where 0=clear; 1=almost clear; 2=mild; 3=moderate; and 4=severe. 95% confidence interval is constructed using the normal approximation to the binomial distribution of one-sample proportion.
Mean Total Percent of Psoriatic Body Surface Area (BSA) During Initial CP-690,550 Treatment (Period A)
Assessment of BSA with psoriasis performed separately for 4 body regions: head and neck, upper limbs, trunk (including axillae and groin), and lower limbs (including buttocks). The %surface area with psoriasis was estimated by means of the handprint method, where the full palmar hand of the participant (fully extended palm, fingers and thumb together) represented approximately 1% of the total BSA. The number of handprints of psoriatic skin in a body region was used to determine the extent (%) to which a body region was involved with psoriasis.
Mean Total Percent of Psoriatic BSA During Double-Blind Treatment Withdrawal (Period B)
Assessment of BSA with psoriasis performed separately for 4 body regions: head and neck, upper limbs, trunk (including axillae and groin), and lower limbs (including buttocks). The %surface area with psoriasis was estimated by means of the handprint method, where the full palmar hand of the participant (fully extended palm, fingers and thumb together) represented approximately 1% of the total BSA. The number of handprints of psoriatic skin in a body region was used to determine the extent (%) to which a body region was involved with psoriasis.
Mean Total Percent of Psoriatic BSA During CP-690,550 Re-Treatment (Period C)
Assessment of BSA with psoriasis performed separately for 4 body regions: head and neck, upper limbs, trunk (including axillae and groin), and lower limbs (including buttocks). The %surface area with psoriasis was estimated by means of the handprint method, where the full palmar hand of the participant (fully extended palm, fingers and thumb together) represented approximately 1% of the total BSA. The number of handprints of psoriatic skin in a body region was used to determine the extent (%) to which a body region was involved with psoriasis.
Mean Change From Baseline in Total Percent of Psoriatic BSA During Initial CP-690,550 Treatment (Period A)
Baseline defined as the last observation up to first dosing date in Period A.
Mean Change From Baseline in Total Percent of Psoriatic BSA During Double-Blind Treatment Withdrawal (Period B)
Baseline defined as the last observation up to first dosing date in Period B.
Mean Change From Baseline in Total Percent of Psoriatic BSA During CP-690,550 Re-Treatment (Period C)
Baseline was defined as the last observation until first dosing date in Period C.
Mean Percent of Psoriatic BSA by Body Region During Initial CP-690,550 Treatment (Period A)
Assessment of BSA with psoriasis performed separately for 4 body regions: head and neck, upper limbs, trunk (including axillae and groin), and lower limbs (including buttocks). The %surface area with psoriasis was estimated by means of the handprint method, where the full palmar hand of the participant (fully extended palm, fingers and thumb together) represented approximately 1% of the total BSA. The number of handprints of psoriatic skin in a body region was used to determine the extent (%) to which a body region was involved with psoriasis.
Mean Percent of Psoriatic BSA by Body Region During Double-Blind Treatment Withdrawal (Period B)
Assessment of BSA with psoriasis performed separately for 4 body regions: head and neck, upper limbs, trunk (including axillae and groin), and lower limbs (including buttocks). The %surface area with psoriasis was estimated by means of the handprint method, where the full palmar hand of the participant (fully extended palm, fingers and thumb together) represented approximately 1% of the total BSA. The number of handprints of psoriatic skin in a body region was used to determine the extent (%) to which a body region was involved with psoriasis.
Mean Percent of Psoriatic BSA by Body Region During CP-690,550 Re-Treatment (Period C)
Assessment of BSA with psoriasis performed separately for 4 body regions: head and neck, upper limbs, trunk (including axillae and groin), and lower limbs (including buttocks). The %surface area with psoriasis was estimated by means of the handprint method, where the full palmar hand of the participant (fully extended palm, fingers and thumb together) represented approximately 1% of the total BSA. The number of handprints of psoriatic skin in a body region was used to determine the extent (%) to which a body region was involved with psoriasis.
Mean Change From Baseline in Percent of Psoriatic BSA by Body Region During Initial CP-690,550 Treatment (Period A)
Baseline defined as the last observation up to first dosing date in Period A.
Mean Change From Baseline in Percent of Psoriatic BSA by Body Region During Double-Blind Treatment Withdrawal (Period B)
Baseline defined as the last observation up to first dosing date in Period B.
Mean Change From Baseline in Percent of Psoriatic BSA by Body Region During CP-690,550 Re-Treatment (Period C)
Baseline defined as the last observation up to first dosing date in Period C.
Mean PASI Score During Initial CP-690,550 Treatment (Period A)
Combined assessment of lesion severity and area affected into single score; range=0(no disease)-72(maximal disease). Body divided into 4 sections=head, upper/lower limbs, trunk; each area scored by itself and scores combined for final PASI. For each section percent area of skin involved was estimated:0(0%)-6(90-100%) and severity estimated by clinical signs of erythema, induration, scaling; ranged 0-4: 0=none, 1=slight, 2=moderate, 3=marked, 4=very marked. Final PASI=sum of severity parameters for each section*area score*weighing factor (head=0.1, upper limbs=0.2, trunk=0.3, lower limbs=0.4). PASI score can vary in increments of 0.1; higher scores represent greater severity of psoriasis.
Mean PASI Score During Double-Blind Treatment Withdrawal (Period B)
Combined assessment of lesion severity and area affected into single score; range=0(no disease)-72(maximal disease). Body divided into 4 sections=head, upper/lower limbs, trunk; each area scored by itself and scores combined for final PASI. For each section percent area of skin involved was estimated:0(0%)-6(90-100%) and severity estimated by clinical signs of erythema, induration, scaling; ranged 0-4: 0=none, 1=slight, 2=moderate, 3=marked, 4=very marked. Final PASI=sum of severity parameters for each section*area score*weighing factor (head=0.1, upper limbs=0.2, trunk=0.3, lower limbs=0.4). PASI score can vary in increments of 0.1; higher scores represent greater severity of psoriasis. Baseline defined as last observation up to first dosing date in Period B.
Mean PASI Score During the CP-690,550 Re-Treatment (Period C)
Combined assessment of lesion severity and area affected into single score; range=0(no disease)-72(maximal disease). Body divided into 4 sections=head, upper/lower limbs, trunk; each area scored by itself and scores combined for final PASI. For each section percent area of skin involved was estimated:0(0%)-6(90-100%) and severity estimated by clinical signs of erythema, induration, scaling; ranged 0-4: 0=none, 1=slight, 2=moderate, 3=marked, 4=very marked. Final PASI=sum of severity parameters for each section*area score*weighing factor (head=0.1, upper limbs=0.2, trunk=0.3, lower limbs=0.4). PASI score can vary in increments of 0.1; higher scores represent greater severity of psoriasis. Baseline defined as last observation up to first dosing date in Period C.
Mean Change From Baseline-A in PASI Score During Initial CP-690,550 Treatment (Period A)
Combined assessment of lesion severity and area affected into single score; range=0(no disease)-72(maximal disease). Body divided into 4 sections=head, upper/lower limbs, trunk; each area scored by itself and scores combined for final PASI. For each section percent area of skin involved was estimated:0(0%)-6(90-100%) and severity estimated by clinical signs of erythema, induration, scaling; ranged 0-4: 0=none, 1=slight, 2=moderate, 3=marked, 4=very marked. Final PASI=sum of severity parameters for each section*area score*weighing factor (head=0.1, upper limbs=0.2, trunk=0.3, lower limbs=0.4). PASI score can vary in increments of 0.1; higher scores represent greater severity of psoriasis. Baseline-A defined as last observation up to first dosing date in Period A.
Mean Change From Baseline-B in PASI Score During Double-Blind Treatment Withdrawal (Period B)
Combined assessment of lesion severity and area affected into single score; range=0(no disease)-72(maximal disease). Body divided into 4 sections=head, upper/lower limbs, trunk; each area scored by itself and scores combined for final PASI. For each section percent area of skin involved was estimated:0(0%)-6(90-100%) and severity estimated by clinical signs of erythema, induration, scaling; ranged 0-4: 0=none, 1=slight, 2=moderate, 3=marked, 4=very marked. Final PASI=sum of severity parameters for each section*area score*weighing factor (head=0.1, upper limbs=0.2, trunk=0.3, lower limbs=0.4). PASI score can vary in increments of 0.1; higher scores represent greater severity of psoriasis. Baseline-B defined as last observation up to first dosing date in Period B.
Mean Change From Baseline-C in PASI Score During the CP-690,550 Re-Treatment (Period C)
Combined assessment of lesion severity and area affected into single score; range=0(no disease)-72(maximal disease). Body divided into 4 sections=head, upper/lower limbs, trunk; each area scored by itself and scores combined for final PASI. For each section percent area of skin involved was estimated:0(0%)-6(90-100%) and severity estimated by clinical signs of erythema, induration, scaling; ranged 0-4: 0=none, 1=slight, 2=moderate, 3=marked, 4=very marked. Final PASI=sum of severity parameters for each section*area score*weighing factor (head=0.1, upper limbs=0.2, trunk=0.3, lower limbs=0.4). PASI score can vary in increments of 0.1; higher scores represent greater severity of psoriasis. Baseline-C defined as last observation up to first dosing date in Period C.
Mean PASI Component Scores During Initial CP-690,550 Treatment (Period A)
Combined assessment of lesion severity and area affected into single score; range=0(no disease)-72(maximal disease). Body divided into 4 sections=head, upper/lower limbs, trunk; each area scored by itself and scores combined for final PASI. For each section percent area of skin involved was estimated:0(0%)-6(90-100%) and severity estimated by clinical signs of erythema, induration, scaling; ranged 0-4: 0=none, 1=slight, 2=moderate, 3=marked, 4=very marked. Final PASI=sum of severity parameters for each section*area score*weighing factor (head=0.1, upper limbs=0.2, trunk=0.3, lower limbs=0.4). PASI score can vary in increments of 0.1; higher scores represent greater severity of psoriasis. Baseline defined as last observation up to first dosing date in Period B.
Mean PASI Component Scores During Double-Blind Treatment Withdrawal (Period B)
Combined assessment of lesion severity and area affected into single score; range=0(no disease)-72(maximal disease). Body divided into 4 sections=head, upper/lower limbs, trunk; each area scored by itself and scores combined for final PASI. For each section percent area of skin involved was estimated:0(0%)-6(90-100%) and severity estimated by clinical signs of erythema, induration, scaling; ranged 0-4: 0=none, 1=slight, 2=moderate, 3=marked, 4=very marked. Final PASI=sum of severity parameters for each section*area score*weighing factor (head=0.1, upper limbs=0.2, trunk=0.3, lower limbs=0.4). PASI score can vary in increments of 0.1; higher scores represent greater severity of psoriasis. Baseline defined as last observation up to first dosing date in Period B.
Mean PASI Component Scores During the CP-690,550 Re-Treatment (Period C)
Combined assessment of lesion severity and area affected into single score; range=0(no disease)-72(maximal disease). Body divided into 4 sections=head, upper/lower limbs, trunk; each area scored by itself and scores combined for final PASI. For each section percent area of skin involved was estimated:0(0%)-6(90-100%) and severity estimated by clinical signs of erythema, induration, scaling; ranged 0-4: 0=none, 1=slight, 2=moderate, 3=marked, 4=very marked. Final PASI=sum of severity parameters for each section*area score*weighing factor (head=0.1, upper limbs=0.2, trunk=0.3, lower limbs=0.4). PASI score can vary in increments of 0.1; higher scores represent greater severity of psoriasis. Baseline defined as last observation up to first dosing date in Period C.
Mean Change From Baseline in PASI Component Scores During Initial CP-690,550 Treatment (Period A)
Combined assessment of lesion severity and area affected into single score; range=0(no disease)-72(maximal disease). Body divided into 4 sections=head, upper/lower limbs, trunk; each area scored by itself and scores combined for final PASI. For each section percent area of skin involved was estimated:0(0%)-6(90-100%) and severity estimated by clinical signs of erythema, induration, scaling; ranged 0-4: 0=none, 1=slight, 2=moderate, 3=marked, 4=very marked. Final PASI=sum of severity parameters for each section*area score*weighing factor (head=0.1, upper limbs=0.2, trunk=0.3, lower limbs=0.4). PASI score can vary in increments of 0.1; higher scores represent greater severity of psoriasis. Baseline defined as last observation up to first dosing date in Period B.
Mean Change From Baseline in PASI Component Scores During Double-Blind Treatment Withdrawal (Period B)
Combined assessment of lesion severity and area affected into single score; range=0(no disease)-72(maximal disease). Body divided into 4 sections=head, upper/lower limbs, trunk; each area scored by itself and scores combined for final PASI. For each section percent area of skin involved was estimated:0(0%)-6(90-100%) and severity estimated by clinical signs of erythema, induration, scaling; ranged 0-4: 0=none, 1=slight, 2=moderate, 3=marked, 4=very marked. Final PASI=sum of severity parameters for each section*area score*weighing factor (head=0.1, upper limbs=0.2, trunk=0.3, lower limbs=0.4). PASI score can vary in increments of 0.1; higher scores represent greater severity of psoriasis. Baseline defined as last observation up to first dosing date in Period B.
Mean Change From Baseline in PASI Component Scores During the CP-690,550 Re-Treatment (Period C)
Combined assessment of lesion severity and area affected into single score; range=0(no disease)-72(maximal disease). Body divided into 4 sections=head, upper/lower limbs, trunk; each area scored by itself and scores combined for final PASI. For each section percent area of skin involved was estimated:0(0%)-6(90-100%) and severity estimated by clinical signs of erythema, induration, scaling; ranged 0-4: 0=none, 1=slight, 2=moderate, 3=marked, 4=very marked. Final PASI=sum of severity parameters for each section*area score*weighing factor (head=0.1, upper limbs=0.2, trunk=0.3, lower limbs=0.4). PASI score can vary in increments of 0.1; higher scores represent greater severity of psoriasis. Baseline defined as last observation up to first dosing date in Period C.
Percentage of Participants Achieving at Least a 50% Reduction in PASI Relative to Baseline-A (PASI50) During Period A
PASI quantifies the severity of psoriasis based on both lesion severity and the percent of BSA) affected. PASI is a composite score by the investigator of degree of erythema, induration, and scaling (scored separately) for each of 4 body regions (head and neck, upper limbs, trunk, and lower limbs), with adjustment for percent of BSA involved for each body region and for proportion of the body region to the whole body. PASI score can vary in increments of 0.1 and range from 0.0 to 72.0, with higher scores representing greater severity of psoriasis.
Percentage of Participants Achieving at Least a 90% Reduction in PASI Relative to Baseline-A (PASI90) During Period A
PASI quantifies the severity of psoriasis based on both lesion severity and the percent of BSA) affected. PASI is a composite score by the investigator of degree of erythema, induration, and scaling (scored separately) for each of 4 body regions (head and neck, upper limbs, trunk, and lower limbs), with adjustment for percent of BSA involved for each body region and for proportion of the body region to the whole body. PASI score can vary in increments of 0.1 and range from 0.0 to 72.0, with higher scores representing greater severity of psoriasis.
Percentage of Participants Achieving at Least a 100% Reduction in PASI Relative to Baseline-A (PASI100) During Period A
PASI quantifies the severity of psoriasis based on both lesion severity and the percent of BSA) affected. PASI is a composite score by the investigator of degree of erythema, induration, and scaling (scored separately) for each of 4 body regions (head and neck, upper limbs, trunk, and lower limbs), with adjustment for percent of BSA involved for each body region and for proportion of the body region to the whole body. PASI score can vary in increments of 0.1 and range from 0.0 to 72.0, with higher scores representing greater severity of psoriasis.
Percentage of Participants Achieving at Least a 50% Reduction in PASI Relative to Baseline-A (PASI50) During the CP-690,550 Re-Treatment (Period C)
PASI quantifies severity of psoriasis based on both lesion severity and percent of BSA affected. PASI is a composite score by investigator of degree of erythema, induration, and scaling (scored separately) for each of 4 body regions (head/neck, upper limbs, trunk, lower limbs), with adjustment for percent of BSA involved for each body region and for proportion of body region to the whole body. PASI score can vary in increments of 0.1 and range from 0.0-72.0; higher scores representing greater severity of psoriasis. Baseline-A defined as last observation up to first dosing date in Period A.
Percentage of Participants Achieving at Least a 90% Reduction in PASI Relative to Baseline-A (PASI90) During the CP-690,550 Re-Treatment (Period C)
PASI quantifies severity of psoriasis based on both lesion severity and percent of BSA affected. PASI is a composite score by investigator of degree of erythema, induration, and scaling (scored separately) for each of 4 body regions (head/neck, upper limbs, trunk, lower limbs), with adjustment for percent of BSA involved for each body region and for proportion of body region to the whole body. PASI score can vary in increments of 0.1 and range from 0.0-72.0; higher scores representing greater severity of psoriasis. Baseline-A defined as last observation up to first dosing date in Period A.
Percentage of Participants Achieving 100% Reduction in PASI Relative to Baseline-A (PASI100) During the CP-690,550 Re-Treatment (Period C)
PASI quantifies severity of psoriasis based on both lesion severity and percent of BSA affected. PASI is a composite score by investigator of degree of erythema, induration, and scaling (scored separately) for each of 4 body regions (head/neck, upper limbs, trunk, lower limbs), with adjustment for percent of BSA involved for each body region and for proportion of body region to the whole body. PASI score can vary in increments of 0.1 and range from 0.0-72.0; higher scores representing greater severity of psoriasis. Baseline-A defined as last observation up to first dosing date in Period A.
Percentage of Participants With a PASI Score ≥125% of the Baseline-A PASI Score During Initial CP-690,550 Treatment (Period A)
PASI quantifies the severity of psoriasis based on both lesion severity and percent of BSA affected. PASI is a composite score by the investigator of degree of erythema, induration, and scaling (scored separately) for each of 4 body regions (head and neck, upper limbs, trunk, and lower limbs), with adjustment for the percent of BSA involved for each body region and for the proportion of the body region to the whole body. The PASI score can vary in increments of 0.1 and range from 0.0-72.0; higher scores representing greater severity of psoriasis.
Percentage of Participants With a PASI Score ≥125% of the Baseline-A PASI Score During Double-Blind Treatment Withdrawal (Period B)
PASI quantifies severity of psoriasis based on both lesion severity and percent of BSA affected. PASI is a composite score by investigator of degree of erythema, induration, and scaling (scored separately) for each of 4 body regions (head/neck, upper limbs, trunk, lower limbs), with adjustment for percent of BSA involved for each body region and for proportion of body region to the whole body. PASI score can vary in increments of 0.1 and range from 0.0-72.0; higher scores representing greater severity of psoriasis. Baseline-A defined as last observation up to first dosing date in Period A.
Percentage of Participants With a PASI Score ≥125% of the Baseline-A PASI Score During the CP-690,550 Re-Treatment (Period C)
PASI quantifies severity of psoriasis based on both lesion severity and percent of BSA affected. PASI is a composite score by investigator of degree of erythema, induration, and scaling (scored separately) for each of 4 body regions (head/neck, upper limbs, trunk, lower limbs), with adjustment for percent of BSA involved for each body region and for proportion of body region to the whole body. PASI score can vary in increments of 0.1 and range from 0.0-72.0; higher scores representing greater severity of psoriasis. Baseline-A defined as last observation up to first dosing date in Period A.
Mean Itch Severity Item (ISI) Score During the Initial CP-690,550 Treatment (Period A)
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Mean ISI Score During the Double-Blind Treatment Withdrawal (Period B)
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Mean ISI Score During the CP-690,550 Re-Treatment (Period C)
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Mean Change From Baseline-A in ISI Score During the Initial CP-690,550 Treatment (Period A)
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends. Baseline-A defined as the last observation up to first dosing date in Period A.
Mean Change From Baseline-B in ISI Score During the Double-Blind Treatment Withdrawal (Period B)
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends. Baseline-B defined as the last observation up to first dosing date in Period B.
Mean Change From Baseline-C in ISI Score During the CP-690,550 Re-Treatment (Period C)
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends. Baseline-C defined as the last observation up to first dosing date in Period C.
Percentage of Participants With ISI Score of 0 During the Initial CP-690,550 Treatment (Period A)
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Percentage of Participants With ISI Score of 0 During CP-690,550 Re-Treatment (Period C)
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Percentage of Participants Achieving ISI Score of ≤1 During the Initial CP-690,550 Treatment (Period A)
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Percentage of Participants Achieving an ISI Score of ≤1 During CP-690,550 Re-Treatment (Period C)
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Percentage of Participants Achieving ISI ≥2-Point Reduction During the Initial CP-690,550 Treatment (Period A)
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Percentage of Participants Achieving ISI ≥2-Point Reduction During the CP-690,550 Re-Treatment (Period C)
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
ISI Score of ≤1 During the Initial CP-690,550 Treatment (Period A) - Percentage of Participants With a Response
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Median Time to ISI Score of ≤1 During the Initial CP-690,550 Treatment (Period A)
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
ISI Score of ≤1 During CP-690,550 Re-Treatment (Period C) - Percentage of Participants With a Response
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Median Time to ISI Score of ≤1 During the CP-690,550 Re-Treatment (Period C)
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
ISI Reduction (2-point Decrease in ISI Score) During the Initial CP-690,550 Treatment (Period A) - Percentage of Participants With a Response
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Median Time to ISI Reduction (2-point Decrease in ISI Score) During the Initial CP-690,550 Treatment (Period A)
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
ISI Reduction (2-point Decrease in ISI Score) During the CP-690,550 Re-Treatment (Period C) - Percentage of Participant With a Response
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Median Time to ISI Reduction (2-point Decrease in ISI Score) During the CP-690,550 Re-Treatment (Period C)
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Mean Dermatology Life Quality Index (DLQI) Score During the Initial CP-690,550 Treatment (Period A)
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much) with a total score range of 0 (best) to 30 (worst); higher scores indicate poor quality of life.
Mean DLQI Score During the CP-690,550 Re-Treatment (Period C)
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much) with a total score range of 0 (best) to 30 (worst); higher scores indicate poor quality of life.
Mean DLQI Score During the Double-Blind Treatment Withdrawal (Period B)
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much) with a total score range of 0 (best) to 30 (worst); higher scores indicate poor quality of life.
Mean Change From Baseline-A in DLQI Score During the Initial CP-690,550 Treatment (Period A)
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much) with a total score range of 0 (best) to 30 (worst); higher scores indicate poor quality of life. The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline. Baseline-A defined as the last observation up to first dosing date in Period A.
Mean Change From Baseline-B in DLQI Score During the Double-Blind Treatment Withdrawal (Period B)
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much) with a total score range of 0 (best) to 30 (worst); higher scores indicate poor quality of life. The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline. Baseline-B defined as the last observation up to first dosing date in Period B.
Mean Change From Baseline-C in DLQI Score During the CP-690,550 Re-Treatment (Period C)
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much) with a total score range of 0 (best) to 30 (worst); higher scores indicate poor quality of life. The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline. Baseline-C defined as the last observation up to first dosing date in Period C.
Mean DLQI Subscale Scores During the Initial CP-690,550 Treatment (Period A)
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much); higher scores indicate poor quality of life. The DLQI can be analyzed under 6 subscales by combining questions and is categorized as follows: symptoms and feelings (maximum score=6); daily activities (maximum score=6); leisure (maximum score=6); work and school (maximum score=3); personal relationships (maximum score=6); and treatment (maximum score=3).
Mean DLQI Subscale Scores During the Double-Blind Treatment Withdrawal (Period B)
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much); higher scores indicate poor quality of life. The DLQI can be analyzed under 6 subscales by combining questions and is categorized as follows: symptoms and feelings (maximum score=6); daily activities (maximum score=6); leisure (maximum score=6); work and school (maximum score=3); personal relationships (maximum score=6); and treatment (maximum score=3).
Mean DLQI Subscale Scores During the CP-690,550 Re-Treatment (Period C)
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much); higher scores indicate poor quality of life. The DLQI can be analyzed under 6 subscales by combining questions and is categorized as follows: symptoms and feelings (maximum score=6); daily activities (maximum score=6); leisure (maximum score=6); work and school (maximum score=3); personal relationships (maximum score=6); and treatment (maximum score=3).
Mean Change From Baseline-A in DLQI Subscale Scores During the Initial CP-690,550 Treatment (Period A)
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much); higher scores indicate poor quality of life. The DLQI can be analyzed under 6 subscales by combining questions and is categorized as follows: symptoms and feelings (maximum score=6); daily activities (maximum score=6); leisure (maximum score=6); work and school (maximum score=3); personal relationships (maximum score=6); and treatment (maximum score=3). The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline. Baseline-A defined as the last observation up to first dosing date in Period A.
Mean Change From Baseline-B in DLQI Subscale Scores During the Double-Blind Treatment Withdrawal (Period B)
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much); higher scores indicate poor quality of life. The DLQI can be analyzed under 6 subscales by combining questions and is categorized as follows: symptoms and feelings (maximum score=6); daily activities (maximum score=6); leisure (maximum score=6); work and school (maximum score=3); personal relationships (maximum score=6); and treatment (maximum score=3). The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline. Baseline-B defined as the last observation up to first dosing date in Period B.
Mean Change From Baseline-C in DLQI Subscale Scores During the CP-690,550 Re-Treatment (Period C)
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much); higher scores indicate poor quality of life. The DLQI can be analyzed under 6 subscales by combining questions and is categorized as follows: symptoms and feelings (maximum score=6); daily activities (maximum score=6); leisure (maximum score=6); work and school (maximum score=3); personal relationships (maximum score=6); and treatment (maximum score=3). The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline. Baseline-C defined as the last observation up to first dosing date in Period C.
Percentage of Participants Achieving DLQI ≥5 Point Reduction From Baseline-A Response During Initial CP-690,550 Treatment (Period A)
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much) with a total score range of 0 (best) to 30 (worst); higher scores indicate poor quality of life. The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline.
Percentage of Participants Achieving DLQI ≥5 Point Reduction From Baseline-B Response During Double-Blind Treatment Withdrawal (Period B)
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much) with a total score range of 0 (best) to 30 (worst); higher scores indicate poor quality of life. The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline.
Percentage of Participants Achieving DLQI ≥5 Point Reduction From Baseline-C Response During CP-690,550 Re-Treatment (Period C)
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much) with a total score range of 0 (best) to 30 (worst); higher scores indicate poor quality of life. The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline. Baseline-C defined as the last observation up to first dosing date in Period C.
Percentage of Participants Achieving DLQI ≤1 Response During the Initial CP-690,550 Treatment (Period A)
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much) with a total score range of 0 (best) to 30 (worst); higher scores indicate poor quality of life. The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline.
Percentage of Participants Achieving DLQI ≤1 Response During Double-Blind Treatment Withdrawal (Period B)
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much) with a total score range of 0 (best) to 30 (worst); higher scores indicate poor quality of life. The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline.
Percentage of Participants Achieving DLQI ≤1 Response During CP-690,550 Re-Treatment (Period C)
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much) with a total score range of 0 (best) to 30 (worst); higher scores indicate poor quality of life. The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline.
Percentage of Participants by DLQI Severity Category During the Initial CP-690,550 Treatment (Period A)
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). Severity is measured using the following categories of scores: 0-1=no effect on patients' lives; 2-5=small effect; 6-10=moderate effect; 11-20=very large effect; 21-30=extremely large effect.
Percentage of Participants With DLQI ≥5-Point Reduction From Baseline-A Response During Initial CP-690,550 Treatment (Period A)
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much) with a total score range of 0 (best) to 30 (worst); higher scores indicate poor quality of life. The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline.
Median Time to DLQI ≥5-Point Reduction From Baseline-A Response During Initial CP-690,550 Treatment (Period A)
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline.
Percentage of Participants With DLQI ≥5-Point Reduction From Baseline-A Response During CP-690,550 Re-Treatment (Period C)
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much) with a total score range of 0 (best) to 30 (worst); higher scores indicate poor quality of life. The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline.
Median Time to DLQI ≥5-Point Reduction From Baseline-A Response During CP-690,550 Re-Treatment (Period C)
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline.
Mean Short-Form 36 (SF-36) Physical Component Summary (PCS) and Mental Component Summary (MCS) Scores During the Initial CP-690,550 Treatment (Period A)
The SF-36 is a general health status questionnaire that assesses 8 domains of functional health and well being: Physical Functioning, Role Limitations due to Physical Health Problems, Bodily Pain, Social Functioning, Mental Health, Role Limitations due to Emotional Problems, Vitality, and General Health Perceptions. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning). A PCS score and MCS score are based on a normalized sum of the 8 scale scores; PCS/MCS summary concept score = (raw score*10) plus 50. Linear transformations were performed to transform scores to a mean of 50 and standard deviations (SDs) of 10, in the general population. In norm-based scoring, each scale is scored to have same average (50)/SD (10). With this method anytime a scale score is below 50, health status is below average, and each point is one-tenth of a SD. Higher scores indicate a better health related quality of life.
Mean SF-36 PCS and MCS Scores During CP-690,550 Re-Treatment (Period C)
The SF-36 is a general health status questionnaire that assesses 8 domains of functional health and well being: Physical Functioning, Role Limitations due to Physical Health Problems, Bodily Pain, Social Functioning, Mental Health, Role Limitations due to Emotional Problems, Vitality, and General Health Perceptions. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning). A PCS score and MCS score are based on a normalized sum of the 8 scale scores; PCS/MCS summary concept score = (raw score*10) plus 50. Linear transformations were performed to transform scores to a mean of 50 and SDs of 10, in the general population. In norm-based scoring, each scale is scored to have same average (50)/SD (10). With this method anytime a scale score is below 50, health status is below average, and each point is one-tenth of a SD. Higher scores indicate a better health related quality of life.
Mean Change From Baseline-A in SF-36 PCS and MCS Scores During the Initial CP-690,550 Treatment (Period A)
The SF-36 is a general health status questionnaire that assesses 8 domains of functional health and well being: Physical Functioning, Role Limitations due to Physical Health Problems, Bodily Pain, Social Functioning, Mental Health, Role Limitations due to Emotional Problems, Vitality, and General Health Perceptions. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning). A PCS score and MCS score are based on a normalized sum of the 8 scale scores; PCS/MCS summary concept score = (raw score*10) plus 50. Linear transformations were performed to transform scores to a mean of 50 and SDs of 10, in the general population. In norm-based scoring, each scale is scored to have same average (50)/SD (10). With this method anytime a scale score is below 50, health status is below average, and each point is one-tenth of a SD. Higher scores indicate a better health related quality of life.
Mean Change From Baseline-C in SF-36 PCS and MCS Scores During CP-690,550 Re-Treatment (Period C)
The SF-36 is a general health status questionnaire that assesses 8 domains of functional health and well being: Physical Functioning, Role Limitations due to Physical Health Problems, Bodily Pain, Social Functioning, Mental Health, Role Limitations due to Emotional Problems, Vitality, and General Health Perceptions. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning). A PCS score and MCS score are based on a normalized sum of the 8 scale scores; PCS/MCS summary concept score = (raw score*10) plus 50. Linear transformations were performed to transform scores to a mean of 50 and SDs of 10, in the general population. In norm-based scoring, each scale is scored to have same average (50)/SD (10). With this method anytime a scale score is below 50, health status is below average, and each point is one-tenth of a SD. Higher scores indicate a better health related quality of life.
Mean SF-36 Domain Scores During the Initial CP-690,550 Treatment (Period A)
The SF-36 is a general health status questionnaire that assesses 8 domains of functional health and well being: Physical Functioning, Role Limitations due to Physical Health Problems, Bodily Pain, Social Functioning, Mental Health, Role Limitations due to Emotional Problems, Vitality, and General Health Perceptions. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning). Higher scores indicate a better health related quality of life.
Mean SF-36 Domain Scores During CP-690,550 Re-Treatment (Period C)
The SF-36 is a general health status questionnaire that assesses 8 domains of functional health and well being: Physical Functioning, Role Limitations due to Physical Health Problems, Bodily Pain, Social Functioning, Mental Health, Role Limitations due to Emotional Problems, Vitality, and General Health Perceptions. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning). Higher scores indicate a better health related quality of life.
Mean Change From Baseline-A in SF-36 Domain Scores During the Initial CP-690,550 Treatment (Period A)
The SF-36 is a general health status questionnaire that assesses 8 domains of functional health and well being: Physical Functioning, Role Limitations due to Physical Health Problems, Bodily Pain, Social Functioning, Mental Health, Role Limitations due to Emotional Problems, Vitality, and General Health Perceptions. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning). Higher scores indicate a better health related quality of life. Baseline-A defined as the last observation up to first dosing date in Period A.
Mean Change From Baseline-C in SF-36 Domain Scores During CP-690,550 Re-Treatment (Period C)
The SF-36 is a general health status questionnaire that assesses 8 domains of functional health and well being: Physical Functioning, Role Limitations due to Physical Health Problems, Bodily Pain, Social Functioning, Mental Health, Role Limitations due to Emotional Problems, Vitality, and General Health Perceptions. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning). Higher scores indicate a better health related quality of life. Baseline-C defined as the last observation up to first dosing date in Period C.
Percentage of Participants in Each Patient Global Assessment (PtGA) of Psoriasis Category During the Initial CP-690,550 Treatment (Period A)
The PtGA asks the participant to evaluate the overall cutaneous disease at that point in time on a single item, 5 point scale. The scale is scored as follows: 0=clear; 1=almost clear; 2=mild; 3=moderate; and 4=severe
Percentage of Participants in Each PtGA of Psoriasis Category During Double-Blind Treatment Withdrawal (Period B)
The PtGA asks the participant to evaluate the overall cutaneous disease at that point in time on a single item, 5 point scale. The scale is scored as follows: 0=clear; 1=almost clear; 2=mild; 3=moderate; and 4=severe.
Percentage of Participants in Each PtGA of Psoriasis Category During CP-690,550 Re-Treatment (Period C)
The PtGA asks the participant to evaluate the overall cutaneous disease at that point in time on a single item, 5 point scale. The scale is scored as follows: 0=clear; 1=almost clear; 2=mild; 3=moderate; and 4=severe.
Percentage of Participants With PtGA Response of Clear or Almost Clear During the Initial CP-690,550 Treatment (Period A)
The PtGA asks the participant to evaluate the overall cutaneous disease at that point in time on a single item, 5 point scale. The scale is scored as follows: 0=clear; 1=almost clear; 2=mild; 3=moderate; and 4=severe. Response defined as score of 0 or 1.
Percentage of Participants With PtGA Response of Clear or Almost Clear During CP-690,550 Re-Treatment (Period C) Among Participants Who Had a PtGA of Mild, Moderate or Severe During CP-690,550 Treatment Withdrawal (Period B)
The PtGA asks the participant to evaluate the overall cutaneous disease at that point in time on a single item, 5 point scale. The scale is scored as follows: 0=clear; 1=almost clear; 2=mild; 3=moderate; and 4=severe. Response defined as score of 0 or 1.
Percentage of Participants Maintaining PtGA Response of Clear or Almost Clear During the Double-Blind Treatment Withdrawal (Period B) Among Participants Who Had a Response of Clear or Almost Clear at Beginning of Period B
The PtGA asks the participant to evaluate the overall cutaneous disease at that point in time on a single item, 5 point scale. The scale is scored as follows: 0=clear; 1=almost clear; 2=mild; 3=moderate; and 4=severe. Response defined as score of 0 or 1.
Mean EuroQol 5 Dimensions (EQ-5D) Health State Profile Utility Score and VAS Scores During the Initial CP-690,550 Treatment Period (Period A)
EQ-5D: participant rated questionnaire to assess health-related quality of life in terms of a single utility score. Health State Profile component assesses level of current health for 5 domains: mobility, self-care, usual activities, pain and discomfort, and anxiety and depression; 1 indicates better health state (no problems); 3 indicates worst health state ("confined to bed"). Scoring formula developed by EuroQol Group assigns a utility value for each domain in the profile. Score is transformed and results in a total score range -0.594 to 1.000; higher score indicates a better health state. The VAS component rates current health state on a scale from 0 (worst imaginable health state) to 100 (best imaginable health state); higher scores indicate a better health state.
Mean EQ-5D Utility Score and VAS Scores During CP-690,550 Re-Treatment (Period C)
EQ-5D: participant rated questionnaire to assess health-related quality of life in terms of a single utility score. Health State Profile component assesses level of current health for 5 domains: mobility, self-care, usual activities, pain and discomfort, and anxiety and depression; 1 indicates better health state (no problems); 3 indicates worst health state ("confined to bed"). Scoring formula developed by EuroQol Group assigns a utility value for each domain in the profile. Score is transformed and results in a total score range -0.594 to 1.000; higher score indicates a better health state. The VAS component rates current health state on a scale from 0 (worst imaginable health state) to 100 (best imaginable health state); higher scores indicate a better health state.
Mean Change From Baseline-A in EQ-5D Utility Score and VAS Scores During the Initial CP-690,550 Treatment Period (Period A)
EQ-5D: participant rated questionnaire to assess health-related quality of life in terms of a single utility score. Health State Profile component assesses level of current health for 5 domains: mobility, self-care, usual activities, pain and discomfort, and anxiety and depression; 1 indicates better health state (no problems); 3 indicates worst health state ("confined to bed"). Scoring formula developed by EuroQol Group assigns a utility value for each domain in the profile. Score is transformed and results in a total score range -0.594 to 1.000; higher score indicates a better health state. The VAS component rates current health state on a scale from 0 (worst imaginable health state) to 100 (best imaginable health state); higher scores indicate a better health state. Baseline-A defined as the last observation up to first dosing date in Period A.
Mean Change From Baseline-C in EQ-5D Utility Score and VAS Scores During CP-690,550 Re-Treatment (Period C)
EQ-5D: participant rated questionnaire to assess health-related quality of life in terms of a single utility score. Health State Profile component assesses level of current health for 5 domains: mobility, self-care, usual activities, pain and discomfort, and anxiety and depression; 1 indicates better health state (no problems); 3 indicates worst health state ("confined to bed"). Scoring formula developed by EuroQol Group assigns a utility value for each domain in the profile. Score is transformed and results in a total score range -0.594 to 1.000; higher score indicates a better health state. The VAS component rates current health state on a scale from 0 (worst imaginable health state) to 100 (best imaginable health state); higher scores indicate a better health state. Baseline-C defined as the last observation up to first dosing date in Period C.
Mean EQ-5D Domain Scores During the Initial CP-690,550 Treatment Period (Period A)
EQ-5D: participant rated questionnaire to assess health-related quality of life in terms of a single utility score. Health State Profile component assesses level of current health for 5 domains: mobility, self-care, usual activities, pain and discomfort, and anxiety and depression. The score for each of the 5 dimensions can range from 1 to 3; 1 indicates better health state (no problems); 3 indicates worst health state ("confined to bed").
Mean EQ-5D Domain Scores During CP-690,550 Re-Treatment (Period C)
EQ-5D: participant rated questionnaire to assess health-related quality of life in terms of a single utility score. Health State Profile component assesses level of current health for 5 domains: mobility, self-care, usual activities, pain and discomfort, and anxiety and depression. The score for each of the 5 dimensions can range from 1 to 3; 1 indicates better health state (no problems); 3 indicates worst health state ("confined to bed").
Mean Change From Baseline-A in EQ-5D Domain Scores During the Initial CP-690,550 Treatment Period (Period A)
EQ-5D: participant rated questionnaire to assess health-related quality of life in terms of a single utility score. Health State Profile component assesses level of current health for 5 domains: mobility, self-care, usual activities, pain and discomfort, and anxiety and depression. The score for each of the 5 dimensions can range from 1 to 3; 1 indicates better health state (no problems); 3 indicates worst health state ("confined to bed"). Baseline-A defined as the last observation up to first dosing date in Period A.
Mean Change From Baseline-C in EQ-5D Domain Scores During CP-690,550 Re-Treatment (Period C)
EQ-5D: participant rated questionnaire to assess health-related quality of life in terms of a single utility score. Health State Profile component assesses level of current health for 5 domains: mobility, self-care, usual activities, pain and discomfort, and anxiety and depression. The score for each of the 5 dimensions can range from 1 to 3; 1 indicates better health state (no problems); 3 indicates worst health state ("confined to bed"). Baseline-C defined as the last observation up to first dosing date in Period C.
Percentage of Participants With Pustular, Erythrodermic, or Guttate Psoriasis During the Initial CP-690,550 Treatment (Period A)
Percentage of Participants With Pustular, Erythrodermic, or Guttate Psoriasis During Double-Blind Treatment Withdrawal (Period B)
Percentage of Participants With Pustular, Erythrodermic, or Guttate Psoriasis During CP-690,550 Re-Treatment (Period C)

Full Information

First Posted
August 20, 2010
Last Updated
December 3, 2018
Sponsor
Pfizer
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1. Study Identification

Unique Protocol Identification Number
NCT01186744
Brief Title
A Study To Evaluate The Effects And Safety Of Treatment, Treatment Withdrawal, Followed By Re-Treatment With CP-690,550 In Subjects With Moderate To Severe Chronic Plaque Psoriasis
Official Title
A Phase 3, Multi-Site, Randomized, Mixed-Blind, Parallel-Group Treatment Withdrawal And Re-Treatment Study Of The Efficacy And Safety Of 2 Oral Doses Of CP-690,550 In Subjects With Moderate To Severe Chronic Plaque Psoriasis
Study Type
Interventional

2. Study Status

Record Verification Date
December 2018
Overall Recruitment Status
Completed
Study Start Date
September 2010 (undefined)
Primary Completion Date
January 2013 (Actual)
Study Completion Date
January 2013 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Pfizer

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
The primary objectives of the study are to 1) compare the efficacy responses of CP 690,550 (5 mg BID and 10 mg BID) versus placebo following 24 weeks of CP 690,550 treatment and subsequent withdrawal of active treatment at various timepoints during the 16 week double blind active or placebo treatment period; 2) evaluate the regain of efficacy responses of CP 690,550 (5 mg BID and 10 mg BID) following 4 -16 weeks of CP 690,550 treatment withdrawal and subsequent re treatment; and 3) evaluate the safety and tolerability of CP 690,550 (5 mg BID and 10 mg BID) in subjects with moderate to severe chronic plaque psoriasis who are candidates for systemic therapy or phototherapy.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Psoriasis
Keywords
OPT Retreatment, OPT, chronic, moderate, severe, treatment, safety, treatment withdrawal, retreatment, retreatment withdrawal, CP-690,550, Psoriasis Vulgaris, Plaque Psoriasis, tofacitinib, Xeljanz, nail psoriasis, Jak-inhibitor, oral treatment, Pruritus, Itch, DLQI, rebound, intermittent, retreat

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 3
Interventional Study Model
Parallel Assignment
Masking
ParticipantCare ProviderInvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
666 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Active Treatment (10 mg) BID / Placebo BID
Arm Type
Experimental
Arm Description
Continuous active treatment (CP-690,550) for 24 weeks, followed by treatment withdrawal (placebo treatment) for 4-16 weeks, followed by active treatment (CP-690,550) for 16-28 weeks
Arm Title
Active Treatment (10 mg) BID
Arm Type
Experimental
Arm Description
Continuous active treatment (CP-690,550) for 56 weeks
Arm Title
Active Treatment (5 mg) BID / Placebo BID
Arm Type
Experimental
Arm Description
Continuous active treatment (CP-690,550) for 24 weeks, followed by treatment withdrawal (placebo treatment) for 4-16 weeks, followed by active treatment (CP-690,550) for 16-28 weeks
Arm Title
Active Treatment (5 mg) BID
Arm Type
Experimental
Arm Description
Continuous active treatment (CP-690,550) for 56 weeks
Intervention Type
Drug
Intervention Name(s)
CP-690,550
Intervention Description
10 mg of CP-690,550 oral BID or placebo oral BID, as appropriate based on treatment withdrawal/retreatment design
Intervention Type
Drug
Intervention Name(s)
CP-690,550
Intervention Description
10 mg oral BID
Intervention Type
Drug
Intervention Name(s)
CP-690,550
Intervention Description
5 mg of CP-690,550 oral BID or Placebo oral BID, as appropriate based on treatment withdrawal/retreatment design
Intervention Type
Drug
Intervention Name(s)
CP-690,550
Intervention Description
5 mg oral BID
Primary Outcome Measure Information:
Title
Percentage of Participants Maintaining a Psoriasis Area and Severity Index 75 (PASI75) Response During the Double-Blind Treatment Withdrawal Period (Period B)
Description
The PASI quantifies the severity of a participant's psoriasis based on both lesion severity and the percent of body surface area (BSA) affected. PASI is a composite scoring by the investigator of degree of erythema, induration, and scaling (each scored separately) for each of 4 body regions (head and neck, upper limbs, trunk [including axillae and groin], and lower limbs [including buttocks), with adjustment for the percent of BSA involved for each body region and for the proportion of the body region to the whole body. The PASI score can vary in increments of 0.1 and range from 0.0 to 72.0, with higher scores representing greater severity of psoriasis. PASI75 response defined as at least a 75 percent (%) reduction in PASI relative to baseline.
Time Frame
Weeks 4, 8 12, and 16 (Period B)
Title
Percentage of Participants Maintaining a Physician's Global Assessment (PGA) Response During the Double-Blind Treatment Withdrawal (Period B)
Description
The PGA of psoriasis is scored on a 5-point scale, reflecting a global consideration of the erythema, induration, and scaling across all psoriatic lesions. Average erythema, induration, and scaling are scored separately over the whole body according to a 5-point severity scale (0=clear; 1=almost clear; 2=mild; 3=moderate; and 4=severe). PGA response defined as 0 (clear) or 1 (almost clear).
Time Frame
Weeks 4, 8, 12, and 16 (Period B)
Title
Percentage of Participants Achieving a PASI75 Response During CP-690,550 Re-Treatment (Period C) Among Those Who Had a Greater Than (>)50% Reduction of Visit A4/Week 24 PASI Response During Double-Blind Treatment Withdrawal (Period B)
Description
The PASI quantifies the severity of a participant's psoriasis based on both lesion severity and the percent of BSA affected. PASI is a composite scoring by the investigator of degree of erythema, induration, and scaling (each scored separately) for each of 4 body regions (head and neck, upper limbs, trunk [including axillae and groin], and lower limbs [including buttocks), with adjustment for the percent of BSA involved for each body region and for the proportion of the body region to the whole body. PASI75 response is defined as at least 75% reduction in PASI relative to Baseline/Day 1. Baseline defined as the last observation up to first dosing date in Period C. PASI responses at each period were relative to Baseline-A, where Baseline-A was defined as the last observation up to first dosing date in Period A.
Time Frame
Baseline and Weeks 4, 8, and 16 (Period C)
Title
Percentage of Participants Achieving a PGA Response of Clear or Almost Clear During CP-690,550 Re-treatment (Period C) Among Participants Who Had a PGA of Mild, Moderate, or Severe During Double-Blind Treatment Withdrawal (Period B)
Description
The PGA of psoriasis is scored on a 5-point scale, reflecting a global consideration of the erythema, induration, and scaling across all psoriatic lesions. Average erythema, induration, and scaling are scored separately over the whole body according to a 5-point severity scale (0=clear; 1=almost clear; 2=mild; 3=moderate; and 4=severe).
Time Frame
Baseline and Weeks 4, 8, and 16 (Period C)
Secondary Outcome Measure Information:
Title
Median Time to PASI75 Response During Initial CP-690,550 Treatment (Period A)
Description
The PASI quantifies the severity of a participant's psoriasis based on both lesion severity and the percent of BSA affected. PASI is a composite scoring by the investigator of degree of erythema, induration, and scaling (each scored separately) for each of 4 body regions (head and neck, upper limbs, trunk [including axillae and groin], and lower limbs [including buttocks), with adjustment for the percent of BSA involved for each body region and for the proportion of the body region to the whole body. PASI75 response defined as 75% reduction in PASI relative to baseline.
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
Median Time to PGA Response of Clear or Almost Clear During Initial CP-690,550 Treatment (Period A)
Description
The PGA of psoriasis is scored on a 5-point scale, reflecting a global consideration of the erythema, induration, and scaling across all psoriatic lesions. Average erythema, induration, and scaling are scored separately over the whole body according to a 5-point severity scale (0=clear; 1=almost clear; 2=mild; 3=moderate; and 4=severe). PGA response defined as 0 (clear) or 1 (almost clear).
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
Percentage of Participants Achieving Both a PASI50-75 Response and Dermatology Life Quality Index (DLQI) ≤5 Response During Initial CP-690,550 Treatment (Period A)
Description
PASI50-75 response defined as a reduction of at least 50% but less than 75%. The DLQI is a general dermatology questionnaire that consists of 10 items that assess participant health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment. The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline.
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
Percentage of Participant Maintaining an Adequate Response During the Double-Blind Treatment Withdrawal (Period B)
Description
Adequate response defined as >50% reduction of the Visit A4/Week 24 (last visit in Period A) PASI response.
Time Frame
Weeks 4, 8, 12, and 16 (Period B)
Title
Median Time to Loss of Adequate Response During the Double-Blind Treatment Withdrawal (Period B)
Description
Adequate response defined as >50% reduction of the Visit A4/Week 24 (last visit in Period A) PASI response.
Time Frame
Weeks 4, 8, 12, and 16 (Period B)
Title
Percentage of Participants With PASI Score ≥125% of Baseline-A or New Type of Psoriasis (Pustular, Erythrodermic) During the Period Between Week 24 and Week 32 (Period B)
Description
The PASI score can vary in increments of 0.1 and range from 0.0 to 72.0, with higher scores representing greater severity of psoriasis. PASI responses at each period are relative to Baseline-A where Baseline-A was defined as the last observation up to first dosing date in Period A. Weeks 4 and 8 are relative to the Period B baseline and are the same as Weeks 28 and 32, which are relative to Period A baseline. 95% confidence interval is constructed using the normal approximation to the binomial distribution of two-sample proportion.
Time Frame
Weeks 4 and 8 (Period B)
Title
Percentage of Participants With PASI Score ≥125% of Baseline-A or New Type of Psoriasis (Pustular, Erythrodermic) During the Double-Blind Treatment Withdrawal (Period B)
Description
The PASI score can vary in increments of 0.1 and range from 0.0 to 72.0, with higher scores representing greater severity of psoriasis. PASI responses at each period are relative to Baseline-A where Baseline-A was defined as the last observation up to first dosing date in Period A. 95% confidence interval is constructed using the normal approximation to the binomial distribution of two-sample proportion.
Time Frame
Weeks 4, 8, 12, and 16 (Period B)
Title
Percentage of Participants Maintaining Adequate PASI Response and Maintaining PGA Response (Clear or Almost Clear) During the Double-Blind Treatment Withdrawal (Period B)
Description
Adequate PASI response defined as less than or equal to 50% reduction of the Visit A4/Week 24 PASI Response.
Time Frame
Week 24 (Period A) and Weeks 4, 8, 12, and 16 (Period B)
Title
Median Time to Loss of >50% of the Visit A4/Week 24 PASI Response and Loss of PGA Response (Clear or Almost Clear) During the Double-Blind Treatment Withdrawal (Period B)
Time Frame
Week 24 (Period A) and Weeks 4, 8, 12, and 16 (Period B)
Title
Percentage of Participants Regaining PASI75 and PGA Response (Clear or Almost Clear) During CP-690,550 Re-Treatment (Period C) Among Participants Who Lost Both PASI75 Response and PGA Response (Clear or Almost Clear) at the Beginning of Period C
Description
PASI75 response defined as at least a 75% reduction in PASI relative to baseline.
Time Frame
Weeks 4, 8, and 16 (Period C)
Title
Median Time to Regain PASI75 and PGA Response (Clear or Almost Clear) During CP-690,550 Re-Treatment (Period C) Among Participants Who Lost Both PASI75 Response and PGA Response (Clear or Almost Clear) at the Beginning of Period C
Description
PASI75 response defined as at least a 75% reduction in PASI relative to baseline.
Time Frame
Weeks 4, 8, and 16 (Period C)
Title
Percentage of Participants Regaining PASI75 and PGA Response (PGA of Clear or Almost Clear) During CP-690,550 Re-Treatment (Period C) Who Had Lost Both PASI75 Response and PGA Response at the Beginning of Period C
Description
PASI75 response defined as at least a 75% reduction in PASI relative to baseline. PASI responses at each period are relative to Baseline-A, where Baseline-A is defined as the last observation up to first dosing date in Period A. 95% confidence interval constructed using the normal approximation to the binomial distribution of one-sample proportion.
Time Frame
Baseline and Weeks 4, 8, and 16 (Period C)
Title
Median Time to PASI75 Response During CP-690,550 Re-Treatment (Period C) For Those Who Had a >50% Reduction of Visit A4/Week 24 PASI Response During Double-Blind Treatment Withdrawal (Period B)
Description
PASI75 response defined as at least a 75% reduction in PASI relative to baseline.
Time Frame
Baseline and Weeks 4, 8, and 16 (Period C)
Title
Median Time to PGA Response of Clear or Almost Clear During CP-690,550 Re-Treatment (Period C) Among Participants Who Had a PGA of Mild, Moderate, or Severe at the Beginning of Period C
Time Frame
Baseline and Weeks 4, 8, and 16 (Period C)
Title
Percentage of Participants With a PASI75 Response During the Initial CP-690,550 Treatment (Period A)
Description
PASI75 response defined as at least a 75% reduction in PASI relative to baseline. Baseline defined as the last observation up to the first dosing date in Period A. 95% confidence interval is constructed using the normal approximation to the binomial distribution of one-sample proportion.
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
Percentage of Participants With a PASI75 Response During Double-Blind Withdrawal Treatment (Period B)
Description
PASI75 response defined as at least a 75% reduction in PASI relative to baseline. PASI responses in each period are relative to Baseline-A, where Baseline-A is defined as the last observation until first dosing date in Period A. 95% confidence interval is constructed using the normal approximation to the binomial distribution of one-sample proportion.
Time Frame
Weeks 4, 8, 12, and 16 (Period B)
Title
Percentage of Participants With a PASI75 Response During the CP-690,550 Re-Treatment (Period C)
Description
PASI75 response defined as at least a 75% reduction in PASI relative to baseline. PASI responses in each period are relative to Baseline-A, where Baseline-A is defined as the last observation until first dosing date in Period A. 95% confidence interval is constructed using the normal approximation to the binomial distribution of one-sample proportion.
Time Frame
Weeks 4, 8, and 16 (Period C)
Title
Percentage of Participants With PGA Response of Clear or Almost Clear During the Initial CP-690,550 Treatment (Period A)
Description
PGA response was defined as 0 (clear) or 1 (almost clear) on a 5-point scale where 0=clear; 1=almost clear; 2=mild; 3=moderate; and 4=severe. 95% confidence interval is constructed using the normal approximation to the binomial distribution of one-sample proportion.
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
Percentage of Participants With PGA Response of Clear or Almost Clear During Double-Blind Withdrawal Treatment (Period B)
Description
PGA response was defined as 0 (clear) or 1 (almost clear) on a 5-point scale where 0=clear; 1=almost clear; 2=mild; 3=moderate; and 4=severe. 95% confidence interval is constructed using the normal approximation to the binomial distribution of two-sample proportion.
Time Frame
Weeks 4, 8, 12, and 16 (Period B)
Title
Percentage of Participants With PGA Response of Clear or Almost Clear During the CP-690,550 Re-Treatment (Period C)
Description
PGA response was defined as 0 (clear) or 1 (almost clear) on a 5-point scale where 0=clear; 1=almost clear; 2=mild; 3=moderate; and 4=severe. 95% confidence interval is constructed using the normal approximation to the binomial distribution of one-sample proportion.
Time Frame
Weeks 4, 8, and 16 (Period C)
Title
Mean Total Percent of Psoriatic Body Surface Area (BSA) During Initial CP-690,550 Treatment (Period A)
Description
Assessment of BSA with psoriasis performed separately for 4 body regions: head and neck, upper limbs, trunk (including axillae and groin), and lower limbs (including buttocks). The %surface area with psoriasis was estimated by means of the handprint method, where the full palmar hand of the participant (fully extended palm, fingers and thumb together) represented approximately 1% of the total BSA. The number of handprints of psoriatic skin in a body region was used to determine the extent (%) to which a body region was involved with psoriasis.
Time Frame
Baseline and Weeks 4, 8, 16, and 24 (Period A)
Title
Mean Total Percent of Psoriatic BSA During Double-Blind Treatment Withdrawal (Period B)
Description
Assessment of BSA with psoriasis performed separately for 4 body regions: head and neck, upper limbs, trunk (including axillae and groin), and lower limbs (including buttocks). The %surface area with psoriasis was estimated by means of the handprint method, where the full palmar hand of the participant (fully extended palm, fingers and thumb together) represented approximately 1% of the total BSA. The number of handprints of psoriatic skin in a body region was used to determine the extent (%) to which a body region was involved with psoriasis.
Time Frame
Baseline and Weeks 4, 8, 12, and 16 (Period B)
Title
Mean Total Percent of Psoriatic BSA During CP-690,550 Re-Treatment (Period C)
Description
Assessment of BSA with psoriasis performed separately for 4 body regions: head and neck, upper limbs, trunk (including axillae and groin), and lower limbs (including buttocks). The %surface area with psoriasis was estimated by means of the handprint method, where the full palmar hand of the participant (fully extended palm, fingers and thumb together) represented approximately 1% of the total BSA. The number of handprints of psoriatic skin in a body region was used to determine the extent (%) to which a body region was involved with psoriasis.
Time Frame
Baseline and Weeks 4, 8, and 16 (Period C)
Title
Mean Change From Baseline in Total Percent of Psoriatic BSA During Initial CP-690,550 Treatment (Period A)
Description
Baseline defined as the last observation up to first dosing date in Period A.
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
Mean Change From Baseline in Total Percent of Psoriatic BSA During Double-Blind Treatment Withdrawal (Period B)
Description
Baseline defined as the last observation up to first dosing date in Period B.
Time Frame
Weeks 4, 8, 12, and 16 (Period B)
Title
Mean Change From Baseline in Total Percent of Psoriatic BSA During CP-690,550 Re-Treatment (Period C)
Description
Baseline was defined as the last observation until first dosing date in Period C.
Time Frame
Weeks 4, 8, and 16 (Period C)
Title
Mean Percent of Psoriatic BSA by Body Region During Initial CP-690,550 Treatment (Period A)
Description
Assessment of BSA with psoriasis performed separately for 4 body regions: head and neck, upper limbs, trunk (including axillae and groin), and lower limbs (including buttocks). The %surface area with psoriasis was estimated by means of the handprint method, where the full palmar hand of the participant (fully extended palm, fingers and thumb together) represented approximately 1% of the total BSA. The number of handprints of psoriatic skin in a body region was used to determine the extent (%) to which a body region was involved with psoriasis.
Time Frame
Baseline and Weeks 4, 8, 16, and 24 (Period A)
Title
Mean Percent of Psoriatic BSA by Body Region During Double-Blind Treatment Withdrawal (Period B)
Description
Assessment of BSA with psoriasis performed separately for 4 body regions: head and neck, upper limbs, trunk (including axillae and groin), and lower limbs (including buttocks). The %surface area with psoriasis was estimated by means of the handprint method, where the full palmar hand of the participant (fully extended palm, fingers and thumb together) represented approximately 1% of the total BSA. The number of handprints of psoriatic skin in a body region was used to determine the extent (%) to which a body region was involved with psoriasis.
Time Frame
Baseline and Weeks 4, 8, 12, and 16 (Period B)
Title
Mean Percent of Psoriatic BSA by Body Region During CP-690,550 Re-Treatment (Period C)
Description
Assessment of BSA with psoriasis performed separately for 4 body regions: head and neck, upper limbs, trunk (including axillae and groin), and lower limbs (including buttocks). The %surface area with psoriasis was estimated by means of the handprint method, where the full palmar hand of the participant (fully extended palm, fingers and thumb together) represented approximately 1% of the total BSA. The number of handprints of psoriatic skin in a body region was used to determine the extent (%) to which a body region was involved with psoriasis.
Time Frame
Baseline and Weeks 4, 8, and 16 (Period C)
Title
Mean Change From Baseline in Percent of Psoriatic BSA by Body Region During Initial CP-690,550 Treatment (Period A)
Description
Baseline defined as the last observation up to first dosing date in Period A.
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
Mean Change From Baseline in Percent of Psoriatic BSA by Body Region During Double-Blind Treatment Withdrawal (Period B)
Description
Baseline defined as the last observation up to first dosing date in Period B.
Time Frame
Weeks 4, 8, 12, and 16 (Period B)
Title
Mean Change From Baseline in Percent of Psoriatic BSA by Body Region During CP-690,550 Re-Treatment (Period C)
Description
Baseline defined as the last observation up to first dosing date in Period C.
Time Frame
Weeks 4, 8, and 16 (Period C)
Title
Mean PASI Score During Initial CP-690,550 Treatment (Period A)
Description
Combined assessment of lesion severity and area affected into single score; range=0(no disease)-72(maximal disease). Body divided into 4 sections=head, upper/lower limbs, trunk; each area scored by itself and scores combined for final PASI. For each section percent area of skin involved was estimated:0(0%)-6(90-100%) and severity estimated by clinical signs of erythema, induration, scaling; ranged 0-4: 0=none, 1=slight, 2=moderate, 3=marked, 4=very marked. Final PASI=sum of severity parameters for each section*area score*weighing factor (head=0.1, upper limbs=0.2, trunk=0.3, lower limbs=0.4). PASI score can vary in increments of 0.1; higher scores represent greater severity of psoriasis.
Time Frame
Baseline and Weeks 4, 8, 16, and 24 (Period A)
Title
Mean PASI Score During Double-Blind Treatment Withdrawal (Period B)
Description
Combined assessment of lesion severity and area affected into single score; range=0(no disease)-72(maximal disease). Body divided into 4 sections=head, upper/lower limbs, trunk; each area scored by itself and scores combined for final PASI. For each section percent area of skin involved was estimated:0(0%)-6(90-100%) and severity estimated by clinical signs of erythema, induration, scaling; ranged 0-4: 0=none, 1=slight, 2=moderate, 3=marked, 4=very marked. Final PASI=sum of severity parameters for each section*area score*weighing factor (head=0.1, upper limbs=0.2, trunk=0.3, lower limbs=0.4). PASI score can vary in increments of 0.1; higher scores represent greater severity of psoriasis. Baseline defined as last observation up to first dosing date in Period B.
Time Frame
Baseline and Weeks 4, 8, 12, and 16 (Period B)
Title
Mean PASI Score During the CP-690,550 Re-Treatment (Period C)
Description
Combined assessment of lesion severity and area affected into single score; range=0(no disease)-72(maximal disease). Body divided into 4 sections=head, upper/lower limbs, trunk; each area scored by itself and scores combined for final PASI. For each section percent area of skin involved was estimated:0(0%)-6(90-100%) and severity estimated by clinical signs of erythema, induration, scaling; ranged 0-4: 0=none, 1=slight, 2=moderate, 3=marked, 4=very marked. Final PASI=sum of severity parameters for each section*area score*weighing factor (head=0.1, upper limbs=0.2, trunk=0.3, lower limbs=0.4). PASI score can vary in increments of 0.1; higher scores represent greater severity of psoriasis. Baseline defined as last observation up to first dosing date in Period C.
Time Frame
Baseline and Weeks 4, 8, and 16 (Period C)
Title
Mean Change From Baseline-A in PASI Score During Initial CP-690,550 Treatment (Period A)
Description
Combined assessment of lesion severity and area affected into single score; range=0(no disease)-72(maximal disease). Body divided into 4 sections=head, upper/lower limbs, trunk; each area scored by itself and scores combined for final PASI. For each section percent area of skin involved was estimated:0(0%)-6(90-100%) and severity estimated by clinical signs of erythema, induration, scaling; ranged 0-4: 0=none, 1=slight, 2=moderate, 3=marked, 4=very marked. Final PASI=sum of severity parameters for each section*area score*weighing factor (head=0.1, upper limbs=0.2, trunk=0.3, lower limbs=0.4). PASI score can vary in increments of 0.1; higher scores represent greater severity of psoriasis. Baseline-A defined as last observation up to first dosing date in Period A.
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
Mean Change From Baseline-B in PASI Score During Double-Blind Treatment Withdrawal (Period B)
Description
Combined assessment of lesion severity and area affected into single score; range=0(no disease)-72(maximal disease). Body divided into 4 sections=head, upper/lower limbs, trunk; each area scored by itself and scores combined for final PASI. For each section percent area of skin involved was estimated:0(0%)-6(90-100%) and severity estimated by clinical signs of erythema, induration, scaling; ranged 0-4: 0=none, 1=slight, 2=moderate, 3=marked, 4=very marked. Final PASI=sum of severity parameters for each section*area score*weighing factor (head=0.1, upper limbs=0.2, trunk=0.3, lower limbs=0.4). PASI score can vary in increments of 0.1; higher scores represent greater severity of psoriasis. Baseline-B defined as last observation up to first dosing date in Period B.
Time Frame
Weeks 4, 8, 12, and 16 (Period B)
Title
Mean Change From Baseline-C in PASI Score During the CP-690,550 Re-Treatment (Period C)
Description
Combined assessment of lesion severity and area affected into single score; range=0(no disease)-72(maximal disease). Body divided into 4 sections=head, upper/lower limbs, trunk; each area scored by itself and scores combined for final PASI. For each section percent area of skin involved was estimated:0(0%)-6(90-100%) and severity estimated by clinical signs of erythema, induration, scaling; ranged 0-4: 0=none, 1=slight, 2=moderate, 3=marked, 4=very marked. Final PASI=sum of severity parameters for each section*area score*weighing factor (head=0.1, upper limbs=0.2, trunk=0.3, lower limbs=0.4). PASI score can vary in increments of 0.1; higher scores represent greater severity of psoriasis. Baseline-C defined as last observation up to first dosing date in Period C.
Time Frame
Weeks 4, 8, and 16 (Period C)
Title
Mean PASI Component Scores During Initial CP-690,550 Treatment (Period A)
Description
Combined assessment of lesion severity and area affected into single score; range=0(no disease)-72(maximal disease). Body divided into 4 sections=head, upper/lower limbs, trunk; each area scored by itself and scores combined for final PASI. For each section percent area of skin involved was estimated:0(0%)-6(90-100%) and severity estimated by clinical signs of erythema, induration, scaling; ranged 0-4: 0=none, 1=slight, 2=moderate, 3=marked, 4=very marked. Final PASI=sum of severity parameters for each section*area score*weighing factor (head=0.1, upper limbs=0.2, trunk=0.3, lower limbs=0.4). PASI score can vary in increments of 0.1; higher scores represent greater severity of psoriasis. Baseline defined as last observation up to first dosing date in Period B.
Time Frame
Baseline and Weeks 4, 8, 16, and 24 (Period A)
Title
Mean PASI Component Scores During Double-Blind Treatment Withdrawal (Period B)
Description
Combined assessment of lesion severity and area affected into single score; range=0(no disease)-72(maximal disease). Body divided into 4 sections=head, upper/lower limbs, trunk; each area scored by itself and scores combined for final PASI. For each section percent area of skin involved was estimated:0(0%)-6(90-100%) and severity estimated by clinical signs of erythema, induration, scaling; ranged 0-4: 0=none, 1=slight, 2=moderate, 3=marked, 4=very marked. Final PASI=sum of severity parameters for each section*area score*weighing factor (head=0.1, upper limbs=0.2, trunk=0.3, lower limbs=0.4). PASI score can vary in increments of 0.1; higher scores represent greater severity of psoriasis. Baseline defined as last observation up to first dosing date in Period B.
Time Frame
Baseline and Weeks 4, 8, 12, and 16 (Period B)
Title
Mean PASI Component Scores During the CP-690,550 Re-Treatment (Period C)
Description
Combined assessment of lesion severity and area affected into single score; range=0(no disease)-72(maximal disease). Body divided into 4 sections=head, upper/lower limbs, trunk; each area scored by itself and scores combined for final PASI. For each section percent area of skin involved was estimated:0(0%)-6(90-100%) and severity estimated by clinical signs of erythema, induration, scaling; ranged 0-4: 0=none, 1=slight, 2=moderate, 3=marked, 4=very marked. Final PASI=sum of severity parameters for each section*area score*weighing factor (head=0.1, upper limbs=0.2, trunk=0.3, lower limbs=0.4). PASI score can vary in increments of 0.1; higher scores represent greater severity of psoriasis. Baseline defined as last observation up to first dosing date in Period C.
Time Frame
Baseline and Weeks 4, 8, and 16 (Period C)
Title
Mean Change From Baseline in PASI Component Scores During Initial CP-690,550 Treatment (Period A)
Description
Combined assessment of lesion severity and area affected into single score; range=0(no disease)-72(maximal disease). Body divided into 4 sections=head, upper/lower limbs, trunk; each area scored by itself and scores combined for final PASI. For each section percent area of skin involved was estimated:0(0%)-6(90-100%) and severity estimated by clinical signs of erythema, induration, scaling; ranged 0-4: 0=none, 1=slight, 2=moderate, 3=marked, 4=very marked. Final PASI=sum of severity parameters for each section*area score*weighing factor (head=0.1, upper limbs=0.2, trunk=0.3, lower limbs=0.4). PASI score can vary in increments of 0.1; higher scores represent greater severity of psoriasis. Baseline defined as last observation up to first dosing date in Period B.
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
Mean Change From Baseline in PASI Component Scores During Double-Blind Treatment Withdrawal (Period B)
Description
Combined assessment of lesion severity and area affected into single score; range=0(no disease)-72(maximal disease). Body divided into 4 sections=head, upper/lower limbs, trunk; each area scored by itself and scores combined for final PASI. For each section percent area of skin involved was estimated:0(0%)-6(90-100%) and severity estimated by clinical signs of erythema, induration, scaling; ranged 0-4: 0=none, 1=slight, 2=moderate, 3=marked, 4=very marked. Final PASI=sum of severity parameters for each section*area score*weighing factor (head=0.1, upper limbs=0.2, trunk=0.3, lower limbs=0.4). PASI score can vary in increments of 0.1; higher scores represent greater severity of psoriasis. Baseline defined as last observation up to first dosing date in Period B.
Time Frame
Weeks 4, 8, 12, and 16 (Period B)
Title
Mean Change From Baseline in PASI Component Scores During the CP-690,550 Re-Treatment (Period C)
Description
Combined assessment of lesion severity and area affected into single score; range=0(no disease)-72(maximal disease). Body divided into 4 sections=head, upper/lower limbs, trunk; each area scored by itself and scores combined for final PASI. For each section percent area of skin involved was estimated:0(0%)-6(90-100%) and severity estimated by clinical signs of erythema, induration, scaling; ranged 0-4: 0=none, 1=slight, 2=moderate, 3=marked, 4=very marked. Final PASI=sum of severity parameters for each section*area score*weighing factor (head=0.1, upper limbs=0.2, trunk=0.3, lower limbs=0.4). PASI score can vary in increments of 0.1; higher scores represent greater severity of psoriasis. Baseline defined as last observation up to first dosing date in Period C.
Time Frame
Weeks 4, 8, and 16 (Period C)
Title
Percentage of Participants Achieving at Least a 50% Reduction in PASI Relative to Baseline-A (PASI50) During Period A
Description
PASI quantifies the severity of psoriasis based on both lesion severity and the percent of BSA) affected. PASI is a composite score by the investigator of degree of erythema, induration, and scaling (scored separately) for each of 4 body regions (head and neck, upper limbs, trunk, and lower limbs), with adjustment for percent of BSA involved for each body region and for proportion of the body region to the whole body. PASI score can vary in increments of 0.1 and range from 0.0 to 72.0, with higher scores representing greater severity of psoriasis.
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
Percentage of Participants Achieving at Least a 90% Reduction in PASI Relative to Baseline-A (PASI90) During Period A
Description
PASI quantifies the severity of psoriasis based on both lesion severity and the percent of BSA) affected. PASI is a composite score by the investigator of degree of erythema, induration, and scaling (scored separately) for each of 4 body regions (head and neck, upper limbs, trunk, and lower limbs), with adjustment for percent of BSA involved for each body region and for proportion of the body region to the whole body. PASI score can vary in increments of 0.1 and range from 0.0 to 72.0, with higher scores representing greater severity of psoriasis.
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
Percentage of Participants Achieving at Least a 100% Reduction in PASI Relative to Baseline-A (PASI100) During Period A
Description
PASI quantifies the severity of psoriasis based on both lesion severity and the percent of BSA) affected. PASI is a composite score by the investigator of degree of erythema, induration, and scaling (scored separately) for each of 4 body regions (head and neck, upper limbs, trunk, and lower limbs), with adjustment for percent of BSA involved for each body region and for proportion of the body region to the whole body. PASI score can vary in increments of 0.1 and range from 0.0 to 72.0, with higher scores representing greater severity of psoriasis.
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
Percentage of Participants Achieving at Least a 50% Reduction in PASI Relative to Baseline-A (PASI50) During the CP-690,550 Re-Treatment (Period C)
Description
PASI quantifies severity of psoriasis based on both lesion severity and percent of BSA affected. PASI is a composite score by investigator of degree of erythema, induration, and scaling (scored separately) for each of 4 body regions (head/neck, upper limbs, trunk, lower limbs), with adjustment for percent of BSA involved for each body region and for proportion of body region to the whole body. PASI score can vary in increments of 0.1 and range from 0.0-72.0; higher scores representing greater severity of psoriasis. Baseline-A defined as last observation up to first dosing date in Period A.
Time Frame
Baseline and Weeks 4, 8, and 16 (Period C)
Title
Percentage of Participants Achieving at Least a 90% Reduction in PASI Relative to Baseline-A (PASI90) During the CP-690,550 Re-Treatment (Period C)
Description
PASI quantifies severity of psoriasis based on both lesion severity and percent of BSA affected. PASI is a composite score by investigator of degree of erythema, induration, and scaling (scored separately) for each of 4 body regions (head/neck, upper limbs, trunk, lower limbs), with adjustment for percent of BSA involved for each body region and for proportion of body region to the whole body. PASI score can vary in increments of 0.1 and range from 0.0-72.0; higher scores representing greater severity of psoriasis. Baseline-A defined as last observation up to first dosing date in Period A.
Time Frame
Baseline and Weeks 4, 8, and 16 (Period C)
Title
Percentage of Participants Achieving 100% Reduction in PASI Relative to Baseline-A (PASI100) During the CP-690,550 Re-Treatment (Period C)
Description
PASI quantifies severity of psoriasis based on both lesion severity and percent of BSA affected. PASI is a composite score by investigator of degree of erythema, induration, and scaling (scored separately) for each of 4 body regions (head/neck, upper limbs, trunk, lower limbs), with adjustment for percent of BSA involved for each body region and for proportion of body region to the whole body. PASI score can vary in increments of 0.1 and range from 0.0-72.0; higher scores representing greater severity of psoriasis. Baseline-A defined as last observation up to first dosing date in Period A.
Time Frame
Baseline and Weeks 4, 8, and 16 (Period C)
Title
Percentage of Participants With a PASI Score ≥125% of the Baseline-A PASI Score During Initial CP-690,550 Treatment (Period A)
Description
PASI quantifies the severity of psoriasis based on both lesion severity and percent of BSA affected. PASI is a composite score by the investigator of degree of erythema, induration, and scaling (scored separately) for each of 4 body regions (head and neck, upper limbs, trunk, and lower limbs), with adjustment for the percent of BSA involved for each body region and for the proportion of the body region to the whole body. The PASI score can vary in increments of 0.1 and range from 0.0-72.0; higher scores representing greater severity of psoriasis.
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
Percentage of Participants With a PASI Score ≥125% of the Baseline-A PASI Score During Double-Blind Treatment Withdrawal (Period B)
Description
PASI quantifies severity of psoriasis based on both lesion severity and percent of BSA affected. PASI is a composite score by investigator of degree of erythema, induration, and scaling (scored separately) for each of 4 body regions (head/neck, upper limbs, trunk, lower limbs), with adjustment for percent of BSA involved for each body region and for proportion of body region to the whole body. PASI score can vary in increments of 0.1 and range from 0.0-72.0; higher scores representing greater severity of psoriasis. Baseline-A defined as last observation up to first dosing date in Period A.
Time Frame
Weeks 4, 8, 12, and 16 (Period B)
Title
Percentage of Participants With a PASI Score ≥125% of the Baseline-A PASI Score During the CP-690,550 Re-Treatment (Period C)
Description
PASI quantifies severity of psoriasis based on both lesion severity and percent of BSA affected. PASI is a composite score by investigator of degree of erythema, induration, and scaling (scored separately) for each of 4 body regions (head/neck, upper limbs, trunk, lower limbs), with adjustment for percent of BSA involved for each body region and for proportion of body region to the whole body. PASI score can vary in increments of 0.1 and range from 0.0-72.0; higher scores representing greater severity of psoriasis. Baseline-A defined as last observation up to first dosing date in Period A.
Time Frame
Weeks 4, 8, and 16 (Period C)
Title
Mean Itch Severity Item (ISI) Score During the Initial CP-690,550 Treatment (Period A)
Description
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Time Frame
Baseline and Weeks 4, 8, 16, and 24 (Period A)
Title
Mean ISI Score During the Double-Blind Treatment Withdrawal (Period B)
Description
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Time Frame
Baseline and Weeks 4, 8, 12, and 16 (Period B)
Title
Mean ISI Score During the CP-690,550 Re-Treatment (Period C)
Description
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Time Frame
Baseline and Weeks 4, 8, and 16 (Period C)
Title
Mean Change From Baseline-A in ISI Score During the Initial CP-690,550 Treatment (Period A)
Description
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends. Baseline-A defined as the last observation up to first dosing date in Period A.
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
Mean Change From Baseline-B in ISI Score During the Double-Blind Treatment Withdrawal (Period B)
Description
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends. Baseline-B defined as the last observation up to first dosing date in Period B.
Time Frame
Weeks 4, 8, 12, and 16 (Period B)
Title
Mean Change From Baseline-C in ISI Score During the CP-690,550 Re-Treatment (Period C)
Description
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends. Baseline-C defined as the last observation up to first dosing date in Period C.
Time Frame
Weeks 4, 8, and 16 (Period C)
Title
Percentage of Participants With ISI Score of 0 During the Initial CP-690,550 Treatment (Period A)
Description
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
Percentage of Participants With ISI Score of 0 During CP-690,550 Re-Treatment (Period C)
Description
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Time Frame
Baseline and Weeks 4, 8, and 16 (Period C)
Title
Percentage of Participants Achieving ISI Score of ≤1 During the Initial CP-690,550 Treatment (Period A)
Description
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
Percentage of Participants Achieving an ISI Score of ≤1 During CP-690,550 Re-Treatment (Period C)
Description
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Time Frame
Baseline and Weeks 4, 8, and 16 (Period C)
Title
Percentage of Participants Achieving ISI ≥2-Point Reduction During the Initial CP-690,550 Treatment (Period A)
Description
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
Percentage of Participants Achieving ISI ≥2-Point Reduction During the CP-690,550 Re-Treatment (Period C)
Description
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Time Frame
Weeks 4, 8, and 16 (Period C)
Title
ISI Score of ≤1 During the Initial CP-690,550 Treatment (Period A) - Percentage of Participants With a Response
Description
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
Median Time to ISI Score of ≤1 During the Initial CP-690,550 Treatment (Period A)
Description
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
ISI Score of ≤1 During CP-690,550 Re-Treatment (Period C) - Percentage of Participants With a Response
Description
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Time Frame
Weeks 4, 8, and 16 (Period C)
Title
Median Time to ISI Score of ≤1 During the CP-690,550 Re-Treatment (Period C)
Description
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Time Frame
Weeks 4, 8, and 16 (Period C)
Title
ISI Reduction (2-point Decrease in ISI Score) During the Initial CP-690,550 Treatment (Period A) - Percentage of Participants With a Response
Description
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
Median Time to ISI Reduction (2-point Decrease in ISI Score) During the Initial CP-690,550 Treatment (Period A)
Description
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
ISI Reduction (2-point Decrease in ISI Score) During the CP-690,550 Re-Treatment (Period C) - Percentage of Participant With a Response
Description
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Time Frame
Weeks 4, 8, and 16 (Period C)
Title
Median Time to ISI Reduction (2-point Decrease in ISI Score) During the CP-690,550 Re-Treatment (Period C)
Description
The severity of itch (pruritus) due to psoriasis was assessed using the ISI, a single item, horizontal numeric rating scale. Participants were asked to rate "your worst itching due to psoriasis over the past 24 hours" on a numeric rating scale anchored by the terms "No itching" (0) and "Worst possible itching" (10) at the ends.
Time Frame
Weeks 4, 8, and 16 (Period C)
Title
Mean Dermatology Life Quality Index (DLQI) Score During the Initial CP-690,550 Treatment (Period A)
Description
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much) with a total score range of 0 (best) to 30 (worst); higher scores indicate poor quality of life.
Time Frame
Baseline and Weeks 4, 8, 16, and 24 (Period A)
Title
Mean DLQI Score During the CP-690,550 Re-Treatment (Period C)
Description
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much) with a total score range of 0 (best) to 30 (worst); higher scores indicate poor quality of life.
Time Frame
Baseline and Weeks 4, 8, and 16 (Period C)
Title
Mean DLQI Score During the Double-Blind Treatment Withdrawal (Period B)
Description
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much) with a total score range of 0 (best) to 30 (worst); higher scores indicate poor quality of life.
Time Frame
Baseline and Weeks 4, 8, 12, and 16 (Period B)
Title
Mean Change From Baseline-A in DLQI Score During the Initial CP-690,550 Treatment (Period A)
Description
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much) with a total score range of 0 (best) to 30 (worst); higher scores indicate poor quality of life. The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline. Baseline-A defined as the last observation up to first dosing date in Period A.
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
Mean Change From Baseline-B in DLQI Score During the Double-Blind Treatment Withdrawal (Period B)
Description
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much) with a total score range of 0 (best) to 30 (worst); higher scores indicate poor quality of life. The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline. Baseline-B defined as the last observation up to first dosing date in Period B.
Time Frame
Weeks 4, 8, 12, and 16 (Period B)
Title
Mean Change From Baseline-C in DLQI Score During the CP-690,550 Re-Treatment (Period C)
Description
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much) with a total score range of 0 (best) to 30 (worst); higher scores indicate poor quality of life. The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline. Baseline-C defined as the last observation up to first dosing date in Period C.
Time Frame
Weeks 4, 8, and 16 (Period C)
Title
Mean DLQI Subscale Scores During the Initial CP-690,550 Treatment (Period A)
Description
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much); higher scores indicate poor quality of life. The DLQI can be analyzed under 6 subscales by combining questions and is categorized as follows: symptoms and feelings (maximum score=6); daily activities (maximum score=6); leisure (maximum score=6); work and school (maximum score=3); personal relationships (maximum score=6); and treatment (maximum score=3).
Time Frame
Baseline and Weeks 4, 8, 16, and 24 (Period A)
Title
Mean DLQI Subscale Scores During the Double-Blind Treatment Withdrawal (Period B)
Description
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much); higher scores indicate poor quality of life. The DLQI can be analyzed under 6 subscales by combining questions and is categorized as follows: symptoms and feelings (maximum score=6); daily activities (maximum score=6); leisure (maximum score=6); work and school (maximum score=3); personal relationships (maximum score=6); and treatment (maximum score=3).
Time Frame
Baseline and Weeks 4, 8, 12, and 16 (Period B)
Title
Mean DLQI Subscale Scores During the CP-690,550 Re-Treatment (Period C)
Description
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much); higher scores indicate poor quality of life. The DLQI can be analyzed under 6 subscales by combining questions and is categorized as follows: symptoms and feelings (maximum score=6); daily activities (maximum score=6); leisure (maximum score=6); work and school (maximum score=3); personal relationships (maximum score=6); and treatment (maximum score=3).
Time Frame
Baseline and Weeks 4, 8, and 16 (Period C)
Title
Mean Change From Baseline-A in DLQI Subscale Scores During the Initial CP-690,550 Treatment (Period A)
Description
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much); higher scores indicate poor quality of life. The DLQI can be analyzed under 6 subscales by combining questions and is categorized as follows: symptoms and feelings (maximum score=6); daily activities (maximum score=6); leisure (maximum score=6); work and school (maximum score=3); personal relationships (maximum score=6); and treatment (maximum score=3). The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline. Baseline-A defined as the last observation up to first dosing date in Period A.
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
Mean Change From Baseline-B in DLQI Subscale Scores During the Double-Blind Treatment Withdrawal (Period B)
Description
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much); higher scores indicate poor quality of life. The DLQI can be analyzed under 6 subscales by combining questions and is categorized as follows: symptoms and feelings (maximum score=6); daily activities (maximum score=6); leisure (maximum score=6); work and school (maximum score=3); personal relationships (maximum score=6); and treatment (maximum score=3). The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline. Baseline-B defined as the last observation up to first dosing date in Period B.
Time Frame
Weeks 4, 8, 12, and 16 (Period B)
Title
Mean Change From Baseline-C in DLQI Subscale Scores During the CP-690,550 Re-Treatment (Period C)
Description
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much); higher scores indicate poor quality of life. The DLQI can be analyzed under 6 subscales by combining questions and is categorized as follows: symptoms and feelings (maximum score=6); daily activities (maximum score=6); leisure (maximum score=6); work and school (maximum score=3); personal relationships (maximum score=6); and treatment (maximum score=3). The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline. Baseline-C defined as the last observation up to first dosing date in Period C.
Time Frame
Weeks 4, 8, and 16 (Period C)
Title
Percentage of Participants Achieving DLQI ≥5 Point Reduction From Baseline-A Response During Initial CP-690,550 Treatment (Period A)
Description
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much) with a total score range of 0 (best) to 30 (worst); higher scores indicate poor quality of life. The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline.
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
Percentage of Participants Achieving DLQI ≥5 Point Reduction From Baseline-B Response During Double-Blind Treatment Withdrawal (Period B)
Description
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much) with a total score range of 0 (best) to 30 (worst); higher scores indicate poor quality of life. The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline.
Time Frame
Weeks 4, 8, 12, and 16 (Period B)
Title
Percentage of Participants Achieving DLQI ≥5 Point Reduction From Baseline-C Response During CP-690,550 Re-Treatment (Period C)
Description
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much) with a total score range of 0 (best) to 30 (worst); higher scores indicate poor quality of life. The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline. Baseline-C defined as the last observation up to first dosing date in Period C.
Time Frame
Weeks 4, 8, and 16 (Period C)
Title
Percentage of Participants Achieving DLQI ≤1 Response During the Initial CP-690,550 Treatment (Period A)
Description
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much) with a total score range of 0 (best) to 30 (worst); higher scores indicate poor quality of life. The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline.
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
Percentage of Participants Achieving DLQI ≤1 Response During Double-Blind Treatment Withdrawal (Period B)
Description
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much) with a total score range of 0 (best) to 30 (worst); higher scores indicate poor quality of life. The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline.
Time Frame
Weeks 4, 8, 12, and 16 (Period B)
Title
Percentage of Participants Achieving DLQI ≤1 Response During CP-690,550 Re-Treatment (Period C)
Description
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much) with a total score range of 0 (best) to 30 (worst); higher scores indicate poor quality of life. The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline.
Time Frame
Baseline and Weeks 4, 8, and 16 (Period C)
Title
Percentage of Participants by DLQI Severity Category During the Initial CP-690,550 Treatment (Period A)
Description
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). Severity is measured using the following categories of scores: 0-1=no effect on patients' lives; 2-5=small effect; 6-10=moderate effect; 11-20=very large effect; 21-30=extremely large effect.
Time Frame
Baseline and Weeks 4, 8, 16, and 24 (Period A)
Title
Percentage of Participants With DLQI ≥5-Point Reduction From Baseline-A Response During Initial CP-690,550 Treatment (Period A)
Description
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much) with a total score range of 0 (best) to 30 (worst); higher scores indicate poor quality of life. The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline.
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
Median Time to DLQI ≥5-Point Reduction From Baseline-A Response During Initial CP-690,550 Treatment (Period A)
Description
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline.
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
Percentage of Participants With DLQI ≥5-Point Reduction From Baseline-A Response During CP-690,550 Re-Treatment (Period C)
Description
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The DLQI questions are rated by the participant as 0 (not at all/not relevant) to 3 (very much) with a total score range of 0 (best) to 30 (worst); higher scores indicate poor quality of life. The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline.
Time Frame
Weeks 4, 8, and 16 (Period C)
Title
Median Time to DLQI ≥5-Point Reduction From Baseline-A Response During CP-690,550 Re-Treatment (Period C)
Description
The DLQI is a general dermatology questionnaire that consists of 10 items that assess health related quality of life (daily activities, personal relationships, symptoms and feelings, leisure, work and school, and treatment). The minimally important difference for the DLQI has been estimated as a 2 to 5 point change from baseline.
Time Frame
Weeks 4, 8, and 16 (Period C)
Title
Mean Short-Form 36 (SF-36) Physical Component Summary (PCS) and Mental Component Summary (MCS) Scores During the Initial CP-690,550 Treatment (Period A)
Description
The SF-36 is a general health status questionnaire that assesses 8 domains of functional health and well being: Physical Functioning, Role Limitations due to Physical Health Problems, Bodily Pain, Social Functioning, Mental Health, Role Limitations due to Emotional Problems, Vitality, and General Health Perceptions. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning). A PCS score and MCS score are based on a normalized sum of the 8 scale scores; PCS/MCS summary concept score = (raw score*10) plus 50. Linear transformations were performed to transform scores to a mean of 50 and standard deviations (SDs) of 10, in the general population. In norm-based scoring, each scale is scored to have same average (50)/SD (10). With this method anytime a scale score is below 50, health status is below average, and each point is one-tenth of a SD. Higher scores indicate a better health related quality of life.
Time Frame
Baseline and Week 24 (Period A)
Title
Mean SF-36 PCS and MCS Scores During CP-690,550 Re-Treatment (Period C)
Description
The SF-36 is a general health status questionnaire that assesses 8 domains of functional health and well being: Physical Functioning, Role Limitations due to Physical Health Problems, Bodily Pain, Social Functioning, Mental Health, Role Limitations due to Emotional Problems, Vitality, and General Health Perceptions. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning). A PCS score and MCS score are based on a normalized sum of the 8 scale scores; PCS/MCS summary concept score = (raw score*10) plus 50. Linear transformations were performed to transform scores to a mean of 50 and SDs of 10, in the general population. In norm-based scoring, each scale is scored to have same average (50)/SD (10). With this method anytime a scale score is below 50, health status is below average, and each point is one-tenth of a SD. Higher scores indicate a better health related quality of life.
Time Frame
Baseline and Week 56 (Period C)
Title
Mean Change From Baseline-A in SF-36 PCS and MCS Scores During the Initial CP-690,550 Treatment (Period A)
Description
The SF-36 is a general health status questionnaire that assesses 8 domains of functional health and well being: Physical Functioning, Role Limitations due to Physical Health Problems, Bodily Pain, Social Functioning, Mental Health, Role Limitations due to Emotional Problems, Vitality, and General Health Perceptions. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning). A PCS score and MCS score are based on a normalized sum of the 8 scale scores; PCS/MCS summary concept score = (raw score*10) plus 50. Linear transformations were performed to transform scores to a mean of 50 and SDs of 10, in the general population. In norm-based scoring, each scale is scored to have same average (50)/SD (10). With this method anytime a scale score is below 50, health status is below average, and each point is one-tenth of a SD. Higher scores indicate a better health related quality of life.
Time Frame
Week 24 (Period A)
Title
Mean Change From Baseline-C in SF-36 PCS and MCS Scores During CP-690,550 Re-Treatment (Period C)
Description
The SF-36 is a general health status questionnaire that assesses 8 domains of functional health and well being: Physical Functioning, Role Limitations due to Physical Health Problems, Bodily Pain, Social Functioning, Mental Health, Role Limitations due to Emotional Problems, Vitality, and General Health Perceptions. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning). A PCS score and MCS score are based on a normalized sum of the 8 scale scores; PCS/MCS summary concept score = (raw score*10) plus 50. Linear transformations were performed to transform scores to a mean of 50 and SDs of 10, in the general population. In norm-based scoring, each scale is scored to have same average (50)/SD (10). With this method anytime a scale score is below 50, health status is below average, and each point is one-tenth of a SD. Higher scores indicate a better health related quality of life.
Time Frame
Week 56 (Period C)
Title
Mean SF-36 Domain Scores During the Initial CP-690,550 Treatment (Period A)
Description
The SF-36 is a general health status questionnaire that assesses 8 domains of functional health and well being: Physical Functioning, Role Limitations due to Physical Health Problems, Bodily Pain, Social Functioning, Mental Health, Role Limitations due to Emotional Problems, Vitality, and General Health Perceptions. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning). Higher scores indicate a better health related quality of life.
Time Frame
Baseline and Week 24 (Period A)
Title
Mean SF-36 Domain Scores During CP-690,550 Re-Treatment (Period C)
Description
The SF-36 is a general health status questionnaire that assesses 8 domains of functional health and well being: Physical Functioning, Role Limitations due to Physical Health Problems, Bodily Pain, Social Functioning, Mental Health, Role Limitations due to Emotional Problems, Vitality, and General Health Perceptions. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning). Higher scores indicate a better health related quality of life.
Time Frame
Baseline and Week 56 (Period C)
Title
Mean Change From Baseline-A in SF-36 Domain Scores During the Initial CP-690,550 Treatment (Period A)
Description
The SF-36 is a general health status questionnaire that assesses 8 domains of functional health and well being: Physical Functioning, Role Limitations due to Physical Health Problems, Bodily Pain, Social Functioning, Mental Health, Role Limitations due to Emotional Problems, Vitality, and General Health Perceptions. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning). Higher scores indicate a better health related quality of life. Baseline-A defined as the last observation up to first dosing date in Period A.
Time Frame
Week 24 (Period A)
Title
Mean Change From Baseline-C in SF-36 Domain Scores During CP-690,550 Re-Treatment (Period C)
Description
The SF-36 is a general health status questionnaire that assesses 8 domains of functional health and well being: Physical Functioning, Role Limitations due to Physical Health Problems, Bodily Pain, Social Functioning, Mental Health, Role Limitations due to Emotional Problems, Vitality, and General Health Perceptions. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning). Higher scores indicate a better health related quality of life. Baseline-C defined as the last observation up to first dosing date in Period C.
Time Frame
Week 56 (Period C)
Title
Percentage of Participants in Each Patient Global Assessment (PtGA) of Psoriasis Category During the Initial CP-690,550 Treatment (Period A)
Description
The PtGA asks the participant to evaluate the overall cutaneous disease at that point in time on a single item, 5 point scale. The scale is scored as follows: 0=clear; 1=almost clear; 2=mild; 3=moderate; and 4=severe
Time Frame
Baseline and Weeks 4, 8, 16 and 24 (Period A)
Title
Percentage of Participants in Each PtGA of Psoriasis Category During Double-Blind Treatment Withdrawal (Period B)
Description
The PtGA asks the participant to evaluate the overall cutaneous disease at that point in time on a single item, 5 point scale. The scale is scored as follows: 0=clear; 1=almost clear; 2=mild; 3=moderate; and 4=severe.
Time Frame
Baseline and Weeks 4, 8, 12, and 16 (Period B)
Title
Percentage of Participants in Each PtGA of Psoriasis Category During CP-690,550 Re-Treatment (Period C)
Description
The PtGA asks the participant to evaluate the overall cutaneous disease at that point in time on a single item, 5 point scale. The scale is scored as follows: 0=clear; 1=almost clear; 2=mild; 3=moderate; and 4=severe.
Time Frame
Baseline and Weeks 4, 8, and 16 (Period C)
Title
Percentage of Participants With PtGA Response of Clear or Almost Clear During the Initial CP-690,550 Treatment (Period A)
Description
The PtGA asks the participant to evaluate the overall cutaneous disease at that point in time on a single item, 5 point scale. The scale is scored as follows: 0=clear; 1=almost clear; 2=mild; 3=moderate; and 4=severe. Response defined as score of 0 or 1.
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
Percentage of Participants With PtGA Response of Clear or Almost Clear During CP-690,550 Re-Treatment (Period C) Among Participants Who Had a PtGA of Mild, Moderate or Severe During CP-690,550 Treatment Withdrawal (Period B)
Description
The PtGA asks the participant to evaluate the overall cutaneous disease at that point in time on a single item, 5 point scale. The scale is scored as follows: 0=clear; 1=almost clear; 2=mild; 3=moderate; and 4=severe. Response defined as score of 0 or 1.
Time Frame
Baseline and Weeks 4, 8, and 16 (Period C)
Title
Percentage of Participants Maintaining PtGA Response of Clear or Almost Clear During the Double-Blind Treatment Withdrawal (Period B) Among Participants Who Had a Response of Clear or Almost Clear at Beginning of Period B
Description
The PtGA asks the participant to evaluate the overall cutaneous disease at that point in time on a single item, 5 point scale. The scale is scored as follows: 0=clear; 1=almost clear; 2=mild; 3=moderate; and 4=severe. Response defined as score of 0 or 1.
Time Frame
Weeks 4, 8, 12, and 16 (Period B)
Title
Mean EuroQol 5 Dimensions (EQ-5D) Health State Profile Utility Score and VAS Scores During the Initial CP-690,550 Treatment Period (Period A)
Description
EQ-5D: participant rated questionnaire to assess health-related quality of life in terms of a single utility score. Health State Profile component assesses level of current health for 5 domains: mobility, self-care, usual activities, pain and discomfort, and anxiety and depression; 1 indicates better health state (no problems); 3 indicates worst health state ("confined to bed"). Scoring formula developed by EuroQol Group assigns a utility value for each domain in the profile. Score is transformed and results in a total score range -0.594 to 1.000; higher score indicates a better health state. The VAS component rates current health state on a scale from 0 (worst imaginable health state) to 100 (best imaginable health state); higher scores indicate a better health state.
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
Mean EQ-5D Utility Score and VAS Scores During CP-690,550 Re-Treatment (Period C)
Description
EQ-5D: participant rated questionnaire to assess health-related quality of life in terms of a single utility score. Health State Profile component assesses level of current health for 5 domains: mobility, self-care, usual activities, pain and discomfort, and anxiety and depression; 1 indicates better health state (no problems); 3 indicates worst health state ("confined to bed"). Scoring formula developed by EuroQol Group assigns a utility value for each domain in the profile. Score is transformed and results in a total score range -0.594 to 1.000; higher score indicates a better health state. The VAS component rates current health state on a scale from 0 (worst imaginable health state) to 100 (best imaginable health state); higher scores indicate a better health state.
Time Frame
Baseline and Week 56 (Period C)
Title
Mean Change From Baseline-A in EQ-5D Utility Score and VAS Scores During the Initial CP-690,550 Treatment Period (Period A)
Description
EQ-5D: participant rated questionnaire to assess health-related quality of life in terms of a single utility score. Health State Profile component assesses level of current health for 5 domains: mobility, self-care, usual activities, pain and discomfort, and anxiety and depression; 1 indicates better health state (no problems); 3 indicates worst health state ("confined to bed"). Scoring formula developed by EuroQol Group assigns a utility value for each domain in the profile. Score is transformed and results in a total score range -0.594 to 1.000; higher score indicates a better health state. The VAS component rates current health state on a scale from 0 (worst imaginable health state) to 100 (best imaginable health state); higher scores indicate a better health state. Baseline-A defined as the last observation up to first dosing date in Period A.
Time Frame
Week 24 (Period A)
Title
Mean Change From Baseline-C in EQ-5D Utility Score and VAS Scores During CP-690,550 Re-Treatment (Period C)
Description
EQ-5D: participant rated questionnaire to assess health-related quality of life in terms of a single utility score. Health State Profile component assesses level of current health for 5 domains: mobility, self-care, usual activities, pain and discomfort, and anxiety and depression; 1 indicates better health state (no problems); 3 indicates worst health state ("confined to bed"). Scoring formula developed by EuroQol Group assigns a utility value for each domain in the profile. Score is transformed and results in a total score range -0.594 to 1.000; higher score indicates a better health state. The VAS component rates current health state on a scale from 0 (worst imaginable health state) to 100 (best imaginable health state); higher scores indicate a better health state. Baseline-C defined as the last observation up to first dosing date in Period C.
Time Frame
Week 56 (Period C)
Title
Mean EQ-5D Domain Scores During the Initial CP-690,550 Treatment Period (Period A)
Description
EQ-5D: participant rated questionnaire to assess health-related quality of life in terms of a single utility score. Health State Profile component assesses level of current health for 5 domains: mobility, self-care, usual activities, pain and discomfort, and anxiety and depression. The score for each of the 5 dimensions can range from 1 to 3; 1 indicates better health state (no problems); 3 indicates worst health state ("confined to bed").
Time Frame
Baseline and Week 24 (Period A)
Title
Mean EQ-5D Domain Scores During CP-690,550 Re-Treatment (Period C)
Description
EQ-5D: participant rated questionnaire to assess health-related quality of life in terms of a single utility score. Health State Profile component assesses level of current health for 5 domains: mobility, self-care, usual activities, pain and discomfort, and anxiety and depression. The score for each of the 5 dimensions can range from 1 to 3; 1 indicates better health state (no problems); 3 indicates worst health state ("confined to bed").
Time Frame
Baseline and Week 56 (Period C)
Title
Mean Change From Baseline-A in EQ-5D Domain Scores During the Initial CP-690,550 Treatment Period (Period A)
Description
EQ-5D: participant rated questionnaire to assess health-related quality of life in terms of a single utility score. Health State Profile component assesses level of current health for 5 domains: mobility, self-care, usual activities, pain and discomfort, and anxiety and depression. The score for each of the 5 dimensions can range from 1 to 3; 1 indicates better health state (no problems); 3 indicates worst health state ("confined to bed"). Baseline-A defined as the last observation up to first dosing date in Period A.
Time Frame
Week 24 (Period A)
Title
Mean Change From Baseline-C in EQ-5D Domain Scores During CP-690,550 Re-Treatment (Period C)
Description
EQ-5D: participant rated questionnaire to assess health-related quality of life in terms of a single utility score. Health State Profile component assesses level of current health for 5 domains: mobility, self-care, usual activities, pain and discomfort, and anxiety and depression. The score for each of the 5 dimensions can range from 1 to 3; 1 indicates better health state (no problems); 3 indicates worst health state ("confined to bed"). Baseline-C defined as the last observation up to first dosing date in Period C.
Time Frame
Week 56 (Period C)
Title
Percentage of Participants With Pustular, Erythrodermic, or Guttate Psoriasis During the Initial CP-690,550 Treatment (Period A)
Time Frame
Weeks 4, 8, 16, and 24 (Period A)
Title
Percentage of Participants With Pustular, Erythrodermic, or Guttate Psoriasis During Double-Blind Treatment Withdrawal (Period B)
Time Frame
Weeks 4, 8, 12, and 16 (Period B)
Title
Percentage of Participants With Pustular, Erythrodermic, or Guttate Psoriasis During CP-690,550 Re-Treatment (Period C)
Time Frame
Weeks 4, 8, and 16 (Period C)

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: 18 years or older with diagnosis of plaque-type psoriasis (psoriasis vulgaris) for at least 12 months prior to first dose of study drug; Psoriasis Area and Severity Index (PASI) score of 12 or greater, AND Physician's Global Assessment (PGA) score of 3 (moderate) or 4 (severe); Psoriasis covering at least 10% of body surface area; No evidence of active or latent or inadequately treated infection with Tuberculosis or other serious infections. Exclusion Criteria: Non-plaque or drug induced forms of psoriasis; Cannot discontinue current oral, injectable or topical therapy for psoriasis or cannot discontinue phototherapy (Psoralen Ultraviolet A; Ultraviolet B). Any uncontrolled significant medical condition.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Pfizer CT.gov Call Center
Organizational Affiliation
Pfizer
Official's Role
Study Director
Facility Information:
Facility Name
Horizon Research Group, Inc.
City
Mobile
State/Province
Alabama
ZIP/Postal Code
36608
Country
United States
Facility Name
Radiant Research, Inc.
City
Tucson
State/Province
Arizona
ZIP/Postal Code
85710
Country
United States
Facility Name
Center for Dermatology Clinical Research, Inc.
City
Fremont
State/Province
California
ZIP/Postal Code
94538
Country
United States
Facility Name
Associates In Research, Inc.
City
Fresno
State/Province
California
ZIP/Postal Code
93720
Country
United States
Facility Name
Dermatology Research Associates
City
Los Angeles
State/Province
California
ZIP/Postal Code
90045
Country
United States
Facility Name
Expresscare Medical
City
Los Angeles
State/Province
California
ZIP/Postal Code
90045
Country
United States
Facility Name
Dermatology Specialists, Inc.
City
Oceanside
State/Province
California
ZIP/Postal Code
92056
Country
United States
Facility Name
University of California San Francisco
City
San Francisco
State/Province
California
ZIP/Postal Code
94118
Country
United States
Facility Name
Longmont Clinic, PC
City
Longmont
State/Province
Colorado
ZIP/Postal Code
80501
Country
United States
Facility Name
New England Research Associates, LLC
City
Trumbull
State/Province
Connecticut
ZIP/Postal Code
06611
Country
United States
Facility Name
Florida Academic Dermatology Center
City
Miami
State/Province
Florida
ZIP/Postal Code
33136
Country
United States
Facility Name
International Dermatology Research, Inc.
City
Miami
State/Province
Florida
ZIP/Postal Code
33144
Country
United States
Facility Name
Park Avenue Dermatology, PA
City
Orange Park
State/Province
Florida
ZIP/Postal Code
32073
Country
United States
Facility Name
Ameriderm Research
City
Ormond Beach
State/Province
Florida
ZIP/Postal Code
32174
Country
United States
Facility Name
Miami Research Associates
City
South Miami
State/Province
Florida
ZIP/Postal Code
33143
Country
United States
Facility Name
Altman Dermatology Associates
City
Arlington Heights
State/Province
Illinois
ZIP/Postal Code
60005
Country
United States
Facility Name
Springfield Clinic, LLP
City
Springfield
State/Province
Illinois
ZIP/Postal Code
62703
Country
United States
Facility Name
Springfield Clinic
City
Springfield
State/Province
Illinois
ZIP/Postal Code
62703
Country
United States
Facility Name
Deaconess Clinic Downtown
City
Evansville
State/Province
Indiana
ZIP/Postal Code
47713
Country
United States
Facility Name
DMIA
City
Louisville
State/Province
Kentucky
ZIP/Postal Code
40207
Country
United States
Facility Name
DermResearch, PLLC
City
Louisville
State/Province
Kentucky
ZIP/Postal Code
40217
Country
United States
Facility Name
Quest Diagnostics
City
Louisville
State/Province
Kentucky
ZIP/Postal Code
40217
Country
United States
Facility Name
Northeast Dermatology Associates
City
Beverly
State/Province
Massachusetts
ZIP/Postal Code
01915
Country
United States
Facility Name
ActivMed Practices and Research, Inc.
City
Haverhill
State/Province
Massachusetts
ZIP/Postal Code
01830
Country
United States
Facility Name
Michigan Center for Research Corporation dba Michigan Center for Skin Care Research
City
Clinton Township
State/Province
Michigan
ZIP/Postal Code
48038
Country
United States
Facility Name
Minnesota Clinical Study Center
City
Fridley
State/Province
Minnesota
ZIP/Postal Code
55432
Country
United States
Facility Name
Comprehensive Clinical Research
City
Berlin
State/Province
New Jersey
ZIP/Postal Code
08009
Country
United States
Facility Name
Duke University Medical Center
City
Durham
State/Province
North Carolina
ZIP/Postal Code
27710
Country
United States
Facility Name
Dermatology Consulting Services
City
High Point
State/Province
North Carolina
ZIP/Postal Code
27262
Country
United States
Facility Name
Dermatology Associates
City
Wilmington
State/Province
North Carolina
ZIP/Postal Code
28401
Country
United States
Facility Name
New Hanover Medical Group, PA
City
Wilmington
State/Province
North Carolina
ZIP/Postal Code
28401
Country
United States
Facility Name
New Hanover Medical Research
City
Wilmington
State/Province
North Carolina
ZIP/Postal Code
28401
Country
United States
Facility Name
PMG Research of Wilmington LLC
City
Wilmington
State/Province
North Carolina
ZIP/Postal Code
28401
Country
United States
Facility Name
Piedmont Imaging
City
Winston-Salem
State/Province
North Carolina
ZIP/Postal Code
27103
Country
United States
Facility Name
Piedmont Medical Research
City
Winston-Salem
State/Province
North Carolina
ZIP/Postal Code
27103
Country
United States
Facility Name
Triad Dermatology, PA
City
Winston-Salem
State/Province
North Carolina
ZIP/Postal Code
27103
Country
United States
Facility Name
Jewish Hospital
City
Cincinnati
State/Province
Ohio
ZIP/Postal Code
45236
Country
United States
Facility Name
Radiant Research, Inc.
City
Cincinnati
State/Province
Ohio
ZIP/Postal Code
45249
Country
United States
Facility Name
University Hospitals Case Medical Center
City
Cleveland
State/Province
Ohio
ZIP/Postal Code
44106
Country
United States
Facility Name
Oregon Medical Research Center, PC
City
Portland
State/Province
Oregon
ZIP/Postal Code
97223
Country
United States
Facility Name
Rhode Island Hospital
City
Providence
State/Province
Rhode Island
ZIP/Postal Code
02903
Country
United States
Facility Name
Medical Research South, LLC
City
Charleston
State/Province
South Carolina
ZIP/Postal Code
29407
Country
United States
Facility Name
Office of Marta T. Hampton, MD
City
Charleston
State/Province
South Carolina
ZIP/Postal Code
29407
Country
United States
Facility Name
Dermatology & Laser Center of Charleston
City
Charleston
State/Province
South Carolina
ZIP/Postal Code
29414
Country
United States
Facility Name
Office of John Michael Humeniuk, MD
City
Greer
State/Province
South Carolina
ZIP/Postal Code
29650
Country
United States
Facility Name
Radiant Research, Inc.
City
Greer
State/Province
South Carolina
ZIP/Postal Code
29651
Country
United States
Facility Name
Dermatology Research Associates
City
Nashville
State/Province
Tennessee
ZIP/Postal Code
37203
Country
United States
Facility Name
Office of Stephen Miller, MD, PA
City
San Antonio
State/Province
Texas
ZIP/Postal Code
78229
Country
United States
Facility Name
Center for Clinical Studies
City
Webster
State/Province
Texas
ZIP/Postal Code
77598
Country
United States
Facility Name
Mountain State Clinical Research
City
Clarksburg
State/Province
West Virginia
ZIP/Postal Code
26301
Country
United States
Facility Name
Centro de Investigaciones Dermatologicas
City
Ciudad Autonoma de Buenos Aires
State/Province
C1114aap
Country
Argentina
Facility Name
Centro de Investigaciones Dermatologicas
City
Ciudad Autonoma de Buenos Aires
ZIP/Postal Code
C1114AAP
Country
Argentina
Facility Name
IMAI (Instituto Medico de Asistencia e Investigaciones)
City
Ciudad Autonoma de Buenos Aires
ZIP/Postal Code
C1425AWC
Country
Argentina
Facility Name
Dr. Glenn & Partners
City
Kogarah
State/Province
New South Wales
ZIP/Postal Code
2217
Country
Australia
Facility Name
Premier Dermatology
City
Kogarah
State/Province
New South Wales
ZIP/Postal Code
2217
Country
Australia
Facility Name
Skin and Cancer Foundation
City
Carlton
State/Province
Victoria
ZIP/Postal Code
3053
Country
Australia
Facility Name
Uniradiology
City
Carlton
State/Province
Victoria
ZIP/Postal Code
3053
Country
Australia
Facility Name
Emeritus Research
City
Malvern East
State/Province
Victoria
ZIP/Postal Code
3145
Country
Australia
Facility Name
Malvern Diagnostic Imaging
City
Malvern
State/Province
Victoria
ZIP/Postal Code
3144
Country
Australia
Facility Name
Instituto de Dermatologia e Est�ca do Brasil LTDA - IDERJ
City
Rio de Janeiro
State/Province
RJ
ZIP/Postal Code
22470-220
Country
Brazil
Facility Name
Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo
City
Sao Paulo
State/Province
SP
ZIP/Postal Code
05403-900
Country
Brazil
Facility Name
Universitetska Mnogoprofilna Bolnitsa Za Aktivno Lechenie- Dr Georgi Stranski- Pleven
City
Pleven
ZIP/Postal Code
5800
Country
Bulgaria
Facility Name
Tsentar za kozhno-venericheski zaboliavania� EOOD
City
Sofia
ZIP/Postal Code
1404
Country
Bulgaria
Facility Name
Mnogoprofilna Bolnitsa Za Aktivno Lechenie- Tokuda Bolnitsa Sofia- Sofia
City
Sofia
ZIP/Postal Code
1407
Country
Bulgaria
Facility Name
Universitetska mnogoprofilna bolnitsa za aktivno lechenie- Alexandrovska- Sofia
City
Sofia
ZIP/Postal Code
1431
Country
Bulgaria
Facility Name
MBAL na Voennomeditsinska akademia- Sofia
City
Sofia
ZIP/Postal Code
1606
Country
Bulgaria
Facility Name
Derm Research @ 888 Inc.
City
Vancouver
State/Province
British Columbia
ZIP/Postal Code
V5Z 3Y1
Country
Canada
Facility Name
UBC Department of Dermatology and Skin Science
City
Vancouver
State/Province
British Columbia
ZIP/Postal Code
V5Z 4E8
Country
Canada
Facility Name
Nexus Clinical Research
City
Saint John's
State/Province
Newfoundland and Labrador
ZIP/Postal Code
A1A 5E8
Country
Canada
Facility Name
NewLab Clinical Research Inc.
City
St. John's
State/Province
Newfoundland and Labrador
ZIP/Postal Code
A1C 2H5
Country
Canada
Facility Name
Dermatrials Research
City
Hamilton
State/Province
Ontario
ZIP/Postal Code
L8N 1V6
Country
Canada
Facility Name
Windsor Clinical Research
City
Windsor
State/Province
Ontario
ZIP/Postal Code
N8W 5L7
Country
Canada
Facility Name
Innovaderm Research Inc
City
Montreal
State/Province
Quebec
ZIP/Postal Code
H2K 4L5
Country
Canada
Facility Name
Centre de Recherche Dermatologique du Quebec metropolitain
City
Quebec
ZIP/Postal Code
G1V 4X7
Country
Canada
Facility Name
Department of Dermatology, Aarhus University Hospital
City
Aarhus C
ZIP/Postal Code
8000
Country
Denmark
Facility Name
Gentofte Hospital
City
Hellerup
ZIP/Postal Code
2900
Country
Denmark
Facility Name
Hudklinikken
City
Svendborg
ZIP/Postal Code
5700
Country
Denmark
Facility Name
Tampere University Hospital, Department of Dermatology and Venreology
City
Tampere
ZIP/Postal Code
33521
Country
Finland
Facility Name
Dermatology Department, Andreas Sygros Hospital
City
Aathens
ZIP/Postal Code
16121
Country
Greece
Facility Name
University Hospital of Ioannina/Dermatology Department
City
Ioannina
ZIP/Postal Code
45500
Country
Greece
Facility Name
"Papageorgiou" General Hospital / B' Dermatology and Venereology Clinic of University of Thessalonik
City
Thessaloniki
ZIP/Postal Code
56403
Country
Greece
Facility Name
PT & R
City
Beek
ZIP/Postal Code
6191 JW
Country
Netherlands
Facility Name
Univerzitna Nemocnica, Bratislava
City
Bratislava
ZIP/Postal Code
813 69
Country
Slovakia
Facility Name
Fakultna Nemocnica Trnava
City
Trnava
ZIP/Postal Code
917 75
Country
Slovakia
Facility Name
Whipps Cross University Hospital, Department of Dermatology
City
London
State/Province
Leytonstone
ZIP/Postal Code
E11 1NR
Country
United Kingdom
Facility Name
Department of Dermatology
City
Nuneaton
State/Province
Warwickshire
ZIP/Postal Code
CV10 7DJ
Country
United Kingdom
Facility Name
Salford Royal NHS Foundation Trust
City
Manchester
ZIP/Postal Code
M6 8HD
Country
United Kingdom

12. IPD Sharing Statement

Citations:
PubMed Identifier
32816215
Citation
Panaccione R, Isaacs JD, Chen LA, Wang W, Marren A, Kwok K, Wang L, Chan G, Su C. Characterization of Creatine Kinase Levels in Tofacitinib-Treated Patients with Ulcerative Colitis: Results from Clinical Trials. Dig Dis Sci. 2021 Aug;66(8):2732-2743. doi: 10.1007/s10620-020-06560-4. Epub 2020 Aug 20. Erratum In: Dig Dis Sci. 2020 Oct 10;:
Results Reference
derived
PubMed Identifier
25418186
Citation
Bissonnette R, Iversen L, Sofen H, Griffiths CE, Foley P, Romiti R, Bachinsky M, Rottinghaus ST, Tan H, Proulx J, Valdez H, Gupta P, Mallbris L, Wolk R. Tofacitinib withdrawal and retreatment in moderate-to-severe chronic plaque psoriasis: a randomized controlled trial. Br J Dermatol. 2015;172(5):1395-406. doi: 10.1111/bjd.13551. Epub 2015 Apr 2.
Results Reference
derived
Links:
URL
https://trialinfoemail.pfizer.com/pages/landing.aspx?StudyID=A3921111&StudyName=A%20Phase%203%2C%20Multi-Site%2C%20Randomized%2C%20Mixed-Blind%2C%20Parallel-Group%20Treatment%20Withdrawal%20And%20Re-Treatment%20Study%20Of%20The%20Efficacy%20And%20Safety%20Of%202%20Oral%20Doses%20Of%20CP-690%2C550%20In%20Subjects%20With%20Moderate%20To%20Severe%20Chronic%20Plaque%20Psoriasis
Description
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Learn more about this trial

A Study To Evaluate The Effects And Safety Of Treatment, Treatment Withdrawal, Followed By Re-Treatment With CP-690,550 In Subjects With Moderate To Severe Chronic Plaque Psoriasis

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