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A Study to Confirm the Efficacy and Safety of Different Dupilumab Dose Regimens in Adults With Atopic Dermatitis (AD) (SOLO-CONTINUE)

Primary Purpose

Atopic Dermatitis

Status
Completed
Phase
Phase 3
Locations
Study Type
Interventional
Intervention
Dupilumab
Placebo
Sponsored by
Regeneron Pharmaceuticals
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Atopic Dermatitis focused on measuring Eczema

Eligibility Criteria

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

Key Inclusion Criteria:

  1. Must have completed the treatment phase in 1 of the two 16-week initial treatment studies (R668-AD-1334 or R668-AD-1416).
  2. Must have achieved at least 1 of the following 2 treatment success criteria:

    Investigator Global Assessment (IGA) = 0 or 1 (clear or almost clear) at week 16 OR Eczema Area and Severity Index >= 75% (EASI-75) (at least 75% reduction in EASI score from baseline to week 16)

  3. Must be willing and able to comply with clinic visits and study-related procedures
  4. Must provide signed informed consent
  5. Must be able to understand and complete study-related questionnaires

Key Exclusion Criteria:

  1. Receipt of rescue medication for AD in the initial treatment study
  2. Any conditions that require permanent discontinuation of study treatment in either initial treatment study
  3. Planned or anticipated major surgical procedure during the participants's participation in this study
  4. Pregnant or breastfeeding women, or women planning to become pregnant or breastfeed during this study
  5. Women unwilling to use adequate birth control, if of reproductive potential* and sexually active. Adequate birth control is defined as agreement to consistently practice an effective and accepted method of contraception, whenever engaging in heterosexual intercourse, throughout the duration of the study and for 120 days after last dose of study drug. These include hormonal contraceptives, intrauterine device, or double barrier contraception (e.g, condom + diaphragm), or a male partner with documented vasectomy. Additional requirements for acceptable contraception may apply in certain countries, based on local regulations. Investigators in these countries will be notified accordingly in a protocol clarification letter.

(*For females, menopause is defined as at least 12 consecutive months without menses; if in question, a follicle stimulating hormone level of >= 25 milli units per milliliter (mU/mL) must be documented. Hysterectomy, bilateral oophorectomy, or bilateral tubal ligation must be documented, as applicable; if documented, women with these conditions are not required to use additional contraception).

Sites / Locations

    Arms of the Study

    Arm 1

    Arm 2

    Arm 3

    Arm 4

    Arm Type

    Placebo Comparator

    Experimental

    Experimental

    Experimental

    Arm Label

    Placebo

    Dupilumab 300 mg Q8W

    Dupilumab 300 mg Q4W

    Dupilumab 300 mg Q2W/QW

    Arm Description

    Subcutaneous injection of Placebo (for Dupilumab) was administered once weekly (QW) from Week 1 (Day 1) to Week 36.

    Subcutaneous injection of Dupilumab 300 milligram (mg) alternatively with placebo (matched to Dupilumab) was administered once every eight week (Q8W) from Week 1 to Week 36.

    Subcutaneous injection of Dupilumab 300 mg alternatively with placebo (matched to Dupilumab) was administered once every four week (Q4W) from Week 1 to Week 36.

    Subcutaneous injection of Dupilumab 300 mg alternatively with placebo (matched to Dupilumab) was administered once every week (QW) or twice a week (Q2W) from Week 1 to Week 36.

    Outcomes

    Primary Outcome Measures

    Difference Between Current Study Baseline and Week 36 in Percent Change in EASI From Parent Study Baseline (NCT02277743 and NCT02277769)
    The EASI score was used to measure the severity and extent of AD and measured erythema, infiltration, excoriation and lichenification on 4 anatomic regions of the body: head, trunk, upper and lower extremities. The total EASI score ranges from 0 (minimum) to 72 (maximum) points, with the higher scores reflecting the worse severity of AD. Difference of percent change in EASI between current study baseline and week 36 in from parent study baseline (NCT02277743 and NCT02277769) was reported. Values after first rescue treatment used were set to missing before multiple imputation (MI).
    Percentage of Participants With Eczema Area and Severity Index >= 75% [EASI-75] at Baseline of Current Study Maintaining EASI-75 at Week 36
    The EASI score was used to measure the severity and extent of AD and measured erythema, infiltration, excoriation and lichenification on 4 anatomic regions of the body: head, trunk, upper and lower extremities. The total EASI score ranges from 0 (minimum) to 72 (maximum) points, with the higher scores reflecting the worse severity of AD. EASI-75 responders were the participants who achieved >=75% overall improvement in EASI score at Week 36. Values after first rescue treatment used were set to missing. Patients with missing value at week 36 were considered as a non-responder.

    Secondary Outcome Measures

    Percentage of Participants Maintaining Investigator Global Assessment (IGA) Response Within 1 Point of Baseline at Week 36
    IGA is an assessment scale used to determine severity of AD and clinical response to treatment on a 5-point scale (0 = clear; 1 = almost clear; 2 = mild; 3 = moderate; 4 = severe) based on erythema and papulation/infiltration. Therapeutic response is an IGA score of 0 (clear) or 1 (almost clear). Participants with IGA score of 0 or 1 at baseline and maintaining within 1 point of baseline were reported as responders. Values after first rescue treatment used were set to missing. Participants with missing value at a visit were considered as a non-responder.
    Percentage of Participants Maintaining Investigator Global Assessment (IGA) Response at 0 or 1 Point at Week 36
    IGA is an assessment scale used to determine severity of AD and clinical response to treatment on a 5-point scale (0 = clear; 1 = almost clear; 2 = mild; 3 = moderate; 4 = severe) based on erythema and papulation/infiltration. Therapeutic response is an IGA score of 0 (clear) or 1 (almost clear). Participants with IGA score of 0 or 1 at week 36 were reported as responders. Values after first rescue treatment were set to missing and participants with missing IGA scores at Week 36 were considered as non-responders.
    Percentage of Participants With Weekly Average of Peak Daily Pruritus Numerical Rating Scale (NRS) Score Increased by 3 or More Points From Baseline to Week 35
    Pruritus NRS was an assessment tool that was used to report the intensity of a participant's pruritus (itch), both maximum and average intensity, during a 24-hour recall period. Participants were asked the following question: how would a participant rate his itch at the worst moment during the previous 24 hours (for maximum itch intensity on a scale of 0 - 10 [0 = no itch; 10 = worst itch imaginable]). Values after first rescue treatment were set to missing and participants with missing peak NRS at Week 35 were considered as non-responders.
    Time to First Event of Investigator's Global Assessment (IGA) >= 2 for Participants With IGA 0 or 1 at Baseline
    IGA is an assessment scale used to determine severity of AD and clinical response to treatment on a 5-point scale (0 = clear; 1 = almost clear; 2 = mild; 3 = moderate; 4 = severe) based on erythema and papulation/infiltration. Therapeutic response is an IGA score of 0 (clear) or 1 (almost clear).
    Percentage of Participants With Increased Investigator's Global Assessment (IGA) Score 3 or 4 at Week 36
    IGA is an assessment scale used to determine severity of AD and clinical response to treatment on a 5-point scale (0 = clear; 1 = almost clear; 2 = mild; 3 = moderate; 4 = severe) based on erythema and papulation/infiltration. Therapeutic response is an IGA score of 0 (clear) or 1 (almost clear). Values after first rescue treatment were set to missing and participants with missing IGA scores at Week 36 were considered as responders (i.e. having a increase 3 or 4 of IGA value).
    Percentage of Participants With Eczema Area and Severity Index-50 (EASI-50) (>= 50% Reduction in EASI Score) at Week 36
    The EASI score was used to measure the severity and extent of AD and measured erythema, infiltration, excoriation and lichenification on 4 anatomic regions of the body: head, trunk, upper and lower extremities. The total EASI score ranges from 0 (minimum) to 72 (maximum) points, with the higher scores reflecting the worse severity of AD. EASI-50 responders were the participants who achieved >= 50% overall improvement in EASI score from baseline to Week 36. Values after first rescue treatment were set to missing and participants with missing EASI-50 scores at Week 36 were considered as non-responders.
    Absolute Change From Baseline in Eczema Area and Severity Index (EASI) at Week 36
    The EASI score was used to measure the severity and extent of AD and measured erythema, infiltration, excoriation and lichenification on 4 anatomic regions of the body: head, trunk, upper and lower extremities. The total EASI score ranges from 0 (minimum) to 72 (maximum) points, with the higher scores reflecting the worse severity of AD. Values after first rescue treatment were set to missing and participants with missing Values at Week 36 were imputed by using multiple imputation method.
    Absolute Change From Baseline in SCORing Atopic Dermatitis (SCORAD) Score at Week 36
    SCORAD is a clinical tool for assessing the severity of AD developed by the European Task Force on Atopic Dermatitis (Severity scoring of atopic dermatitis: the SCORAD index). Consensus Report of the European Task Force on Atopic Dermatitis. Dermatology (Basel) 186 (1): 23-31. 1993. Extent and intensity of eczema as well as subjective signs (insomnia, etc.) are assessed and scored. Total score ranges from 0 (absent disease) to 103 (severe disease). Values after first rescue treatment used were set to missing (censoring) before MI.
    Absolute Change From Baseline in Peak Daily Pruritus Numerical Rating Scale (NRS) Score at Week 35
    Pruritus NRS was an assessment tool that was used to report the intensity of a participant's pruritus (itch), both maximum and average intensity, during a 24-hour recall period. Participants were asked the following question: how would a participant rate his itch at the worst moment during the previous 24 hours (for maximum itch intensity on a scale of 0 - 10 [0 = no itch; 10 = worst itch imaginable]). Values after first rescue treatment used were set to missing before MI.
    Absolute Change From Baseline in Body Surface Area (BSA) Through Week 36
    BSA affected by AD was assessed for each section of the body (the possible highest score for each region was: head and neck [9%], anterior trunk [18%], back [18%], upper limbs [18%], lower limbs [36%], and genitals [1%]). It was reported as a percentage of all major body sections combined. Values after first rescue treatment used were set to missing (censoring) before MI.
    Absolute Change From Baseline Through in Patient Oriented Eczema Measure (POEM) Through Week 36
    The POEM is a 7-item questionnaire that assesses disease symptoms (dryness, itching, flaking, cracking, sleep loss, bleeding and weeping) with a scoring system of 0 (absent disease) to 28 (severe disease) (high score indicative of poor quality of life [QOL]). Values after first rescue treatment used were set to missing (censoring) before MI.
    Absolute Change From Baseline in Dermatology Life Quality Index (DLQI) Through Week 36
    The DLQI is a 10-item, validated questionnaire used in clinical practice and clinical trials to assess the impact of AD disease symptoms and treatment on quality of life (QOL). The 10 questions assessed QOL over the past week, with an overall scoring of 0 (absent disease) to 30 (severe disease); a high score was indicative of a poor QOL. Values after first rescue treatment used were set to missing before MI.
    Absolute Change From Baseline in Hospital Anxiety Depression Scale (HADS) Through Week 36
    HADS is a fourteen item scale. Seven of the items relate to anxiety and seven items relate to depression. Each item on the questionnaire is scored from 0 (minimum score) - 3 (maximum score) and this means that a person can score between 0 (no symptoms) and 21 (severe symptoms) for either anxiety or depression. Cut-offs for identifying psychiatric distress has been reported as 7 to 8 for possible presence, 10 to 11 for probable presence, and 14 to 15 for severe anxiety or depression. Values after first rescue treatment used were set to missing before MI.
    Difference Between Current Study Baseline and Week 36 in Percent Change in SCORAD From Parent Study Baseline
    SCORAD is a clinical tool for assessing the severity of AD developed by the European Task Force on Atopic Dermatitis (Severity scoring of atopic dermatitis: the SCORAD index). Consensus Report of the European Task Force on Atopic Dermatitis. Dermatology (Basel) 186 (1): 23-31. 1993. Extent and intensity of eczema as well as subjective signs (insomnia, etc.) are assessed and scored. Total score ranges from 0 (absent disease) to 103 (severe disease). Values after first rescue treatment used were set to missing before MI.
    Difference Between Current Study Baseline and Week 35 in Percent Change in Peak Weekly Pruritus NRS From Parent Study Baseline
    Pruritus NRS was an assessment tool that was used to report the intensity of a participant's pruritus (itch), both maximum and average intensity, during a 24-hour recall period. Participants were asked the following question: how would a participant rate his itch at the worst moment during the previous 24 hours (for maximum itch intensity on a scale of 0 - 10 [0 = no itch; 10 = worst itch imaginable]). Values after first rescue treatment used were set to missing before MI.
    Annualized Event Rate of Skin Infection Treatment- Emergent Adverse Events (TEAEs)
    Any untoward medical occurrence in a participant who received investigational medicinal product (IMP) was considered an AE without regard to possibility of causal relationship with this treatment. Treatment- emergent adverse events (TEAEs) were defined as AEs that developed or worsened or became serious during on- treatment period (time from the first dose of study drug up to the end of study [Week 36]). A serious adverse event (SAE) was defined as any untoward medical occurrence that resulted in any of the following outcomes: death, life- threatening, required initial or prolonged in-patient hospitalization, persistent or significant disability/incapacity, congenital anomaly/birth defect, or considered as medically important event. Any TEAE included participants with both serious and non-serious AEs.
    Annualized Event Rate of Flares
    Rate of Flares defined as worsening of disease requiring initiation or escalation of rescue treatment.
    Percentage of Well-Controlled Weeks During the On-treatment Period
    Well-controlled weeks are those in which participants during their weekly IVRS call completion has their eczema been well-controlled over the last week during which no rescue treatments were administered. Percentage of well-controlled weeks during the on-treatment period were reported.

    Full Information

    First Posted
    March 16, 2015
    Last Updated
    February 27, 2020
    Sponsor
    Regeneron Pharmaceuticals
    Collaborators
    Sanofi
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    1. Study Identification

    Unique Protocol Identification Number
    NCT02395133
    Brief Title
    A Study to Confirm the Efficacy and Safety of Different Dupilumab Dose Regimens in Adults With Atopic Dermatitis (AD)
    Acronym
    SOLO-CONTINUE
    Official Title
    A Phase 3, Randomized, Double-Blind, Placebo-Controlled Study Investigating the Efficacy and Safety of Multiple Dupilumab Dose Regimens Administered as Monotherapy for Maintaining Treatment Response in Patients With Atopic Dermatitis
    Study Type
    Interventional

    2. Study Status

    Record Verification Date
    February 2020
    Overall Recruitment Status
    Completed
    Study Start Date
    March 25, 2015 (Actual)
    Primary Completion Date
    July 2016 (Actual)
    Study Completion Date
    October 18, 2016 (Actual)

    3. Sponsor/Collaborators

    Responsible Party, by Official Title
    Sponsor
    Name of the Sponsor
    Regeneron Pharmaceuticals
    Collaborators
    Sanofi

    4. Oversight

    Data Monitoring Committee
    Yes

    5. Study Description

    Brief Summary
    The primary objective of the study was to assess the ability of different Dupilumab dose regimens, administered as monotherapy, to maintain the treatment response achieved after 16 weeks of initial treatment with Dupilumab monotherapy compared to placebo.

    6. Conditions and Keywords

    Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
    Atopic Dermatitis
    Keywords
    Eczema

    7. Study Design

    Primary Purpose
    Treatment
    Study Phase
    Phase 3
    Interventional Study Model
    Parallel Assignment
    Masking
    ParticipantInvestigatorOutcomes Assessor
    Allocation
    Randomized
    Enrollment
    422 (Actual)

    8. Arms, Groups, and Interventions

    Arm Title
    Placebo
    Arm Type
    Placebo Comparator
    Arm Description
    Subcutaneous injection of Placebo (for Dupilumab) was administered once weekly (QW) from Week 1 (Day 1) to Week 36.
    Arm Title
    Dupilumab 300 mg Q8W
    Arm Type
    Experimental
    Arm Description
    Subcutaneous injection of Dupilumab 300 milligram (mg) alternatively with placebo (matched to Dupilumab) was administered once every eight week (Q8W) from Week 1 to Week 36.
    Arm Title
    Dupilumab 300 mg Q4W
    Arm Type
    Experimental
    Arm Description
    Subcutaneous injection of Dupilumab 300 mg alternatively with placebo (matched to Dupilumab) was administered once every four week (Q4W) from Week 1 to Week 36.
    Arm Title
    Dupilumab 300 mg Q2W/QW
    Arm Type
    Experimental
    Arm Description
    Subcutaneous injection of Dupilumab 300 mg alternatively with placebo (matched to Dupilumab) was administered once every week (QW) or twice a week (Q2W) from Week 1 to Week 36.
    Intervention Type
    Drug
    Intervention Name(s)
    Dupilumab
    Other Intervention Name(s)
    REGN668, SAR231893
    Intervention Description
    Subcutaneous injection of Dupilumab 300 mg alternatively with placebo (matched to Dupilumab) was administered.
    Intervention Type
    Drug
    Intervention Name(s)
    Placebo
    Intervention Description
    Subcutaneous injection of Placebo (for Dupilumab) was administered once weekly (QW).
    Primary Outcome Measure Information:
    Title
    Difference Between Current Study Baseline and Week 36 in Percent Change in EASI From Parent Study Baseline (NCT02277743 and NCT02277769)
    Description
    The EASI score was used to measure the severity and extent of AD and measured erythema, infiltration, excoriation and lichenification on 4 anatomic regions of the body: head, trunk, upper and lower extremities. The total EASI score ranges from 0 (minimum) to 72 (maximum) points, with the higher scores reflecting the worse severity of AD. Difference of percent change in EASI between current study baseline and week 36 in from parent study baseline (NCT02277743 and NCT02277769) was reported. Values after first rescue treatment used were set to missing before multiple imputation (MI).
    Time Frame
    Baseline (Parent Study), Baseline (Current Study) and Week 36 (Current study)
    Title
    Percentage of Participants With Eczema Area and Severity Index >= 75% [EASI-75] at Baseline of Current Study Maintaining EASI-75 at Week 36
    Description
    The EASI score was used to measure the severity and extent of AD and measured erythema, infiltration, excoriation and lichenification on 4 anatomic regions of the body: head, trunk, upper and lower extremities. The total EASI score ranges from 0 (minimum) to 72 (maximum) points, with the higher scores reflecting the worse severity of AD. EASI-75 responders were the participants who achieved >=75% overall improvement in EASI score at Week 36. Values after first rescue treatment used were set to missing. Patients with missing value at week 36 were considered as a non-responder.
    Time Frame
    Week 36
    Secondary Outcome Measure Information:
    Title
    Percentage of Participants Maintaining Investigator Global Assessment (IGA) Response Within 1 Point of Baseline at Week 36
    Description
    IGA is an assessment scale used to determine severity of AD and clinical response to treatment on a 5-point scale (0 = clear; 1 = almost clear; 2 = mild; 3 = moderate; 4 = severe) based on erythema and papulation/infiltration. Therapeutic response is an IGA score of 0 (clear) or 1 (almost clear). Participants with IGA score of 0 or 1 at baseline and maintaining within 1 point of baseline were reported as responders. Values after first rescue treatment used were set to missing. Participants with missing value at a visit were considered as a non-responder.
    Time Frame
    Baseline, Week 36
    Title
    Percentage of Participants Maintaining Investigator Global Assessment (IGA) Response at 0 or 1 Point at Week 36
    Description
    IGA is an assessment scale used to determine severity of AD and clinical response to treatment on a 5-point scale (0 = clear; 1 = almost clear; 2 = mild; 3 = moderate; 4 = severe) based on erythema and papulation/infiltration. Therapeutic response is an IGA score of 0 (clear) or 1 (almost clear). Participants with IGA score of 0 or 1 at week 36 were reported as responders. Values after first rescue treatment were set to missing and participants with missing IGA scores at Week 36 were considered as non-responders.
    Time Frame
    Week 36
    Title
    Percentage of Participants With Weekly Average of Peak Daily Pruritus Numerical Rating Scale (NRS) Score Increased by 3 or More Points From Baseline to Week 35
    Description
    Pruritus NRS was an assessment tool that was used to report the intensity of a participant's pruritus (itch), both maximum and average intensity, during a 24-hour recall period. Participants were asked the following question: how would a participant rate his itch at the worst moment during the previous 24 hours (for maximum itch intensity on a scale of 0 - 10 [0 = no itch; 10 = worst itch imaginable]). Values after first rescue treatment were set to missing and participants with missing peak NRS at Week 35 were considered as non-responders.
    Time Frame
    Baseline up to Week 35
    Title
    Time to First Event of Investigator's Global Assessment (IGA) >= 2 for Participants With IGA 0 or 1 at Baseline
    Description
    IGA is an assessment scale used to determine severity of AD and clinical response to treatment on a 5-point scale (0 = clear; 1 = almost clear; 2 = mild; 3 = moderate; 4 = severe) based on erythema and papulation/infiltration. Therapeutic response is an IGA score of 0 (clear) or 1 (almost clear).
    Time Frame
    Baseline up to Week 36
    Title
    Percentage of Participants With Increased Investigator's Global Assessment (IGA) Score 3 or 4 at Week 36
    Description
    IGA is an assessment scale used to determine severity of AD and clinical response to treatment on a 5-point scale (0 = clear; 1 = almost clear; 2 = mild; 3 = moderate; 4 = severe) based on erythema and papulation/infiltration. Therapeutic response is an IGA score of 0 (clear) or 1 (almost clear). Values after first rescue treatment were set to missing and participants with missing IGA scores at Week 36 were considered as responders (i.e. having a increase 3 or 4 of IGA value).
    Time Frame
    Week 36
    Title
    Percentage of Participants With Eczema Area and Severity Index-50 (EASI-50) (>= 50% Reduction in EASI Score) at Week 36
    Description
    The EASI score was used to measure the severity and extent of AD and measured erythema, infiltration, excoriation and lichenification on 4 anatomic regions of the body: head, trunk, upper and lower extremities. The total EASI score ranges from 0 (minimum) to 72 (maximum) points, with the higher scores reflecting the worse severity of AD. EASI-50 responders were the participants who achieved >= 50% overall improvement in EASI score from baseline to Week 36. Values after first rescue treatment were set to missing and participants with missing EASI-50 scores at Week 36 were considered as non-responders.
    Time Frame
    Week 36
    Title
    Absolute Change From Baseline in Eczema Area and Severity Index (EASI) at Week 36
    Description
    The EASI score was used to measure the severity and extent of AD and measured erythema, infiltration, excoriation and lichenification on 4 anatomic regions of the body: head, trunk, upper and lower extremities. The total EASI score ranges from 0 (minimum) to 72 (maximum) points, with the higher scores reflecting the worse severity of AD. Values after first rescue treatment were set to missing and participants with missing Values at Week 36 were imputed by using multiple imputation method.
    Time Frame
    Baseline, Week 36
    Title
    Absolute Change From Baseline in SCORing Atopic Dermatitis (SCORAD) Score at Week 36
    Description
    SCORAD is a clinical tool for assessing the severity of AD developed by the European Task Force on Atopic Dermatitis (Severity scoring of atopic dermatitis: the SCORAD index). Consensus Report of the European Task Force on Atopic Dermatitis. Dermatology (Basel) 186 (1): 23-31. 1993. Extent and intensity of eczema as well as subjective signs (insomnia, etc.) are assessed and scored. Total score ranges from 0 (absent disease) to 103 (severe disease). Values after first rescue treatment used were set to missing (censoring) before MI.
    Time Frame
    Baseline, Week 36
    Title
    Absolute Change From Baseline in Peak Daily Pruritus Numerical Rating Scale (NRS) Score at Week 35
    Description
    Pruritus NRS was an assessment tool that was used to report the intensity of a participant's pruritus (itch), both maximum and average intensity, during a 24-hour recall period. Participants were asked the following question: how would a participant rate his itch at the worst moment during the previous 24 hours (for maximum itch intensity on a scale of 0 - 10 [0 = no itch; 10 = worst itch imaginable]). Values after first rescue treatment used were set to missing before MI.
    Time Frame
    Baseline, Week 35
    Title
    Absolute Change From Baseline in Body Surface Area (BSA) Through Week 36
    Description
    BSA affected by AD was assessed for each section of the body (the possible highest score for each region was: head and neck [9%], anterior trunk [18%], back [18%], upper limbs [18%], lower limbs [36%], and genitals [1%]). It was reported as a percentage of all major body sections combined. Values after first rescue treatment used were set to missing (censoring) before MI.
    Time Frame
    Baseline through Week 36
    Title
    Absolute Change From Baseline Through in Patient Oriented Eczema Measure (POEM) Through Week 36
    Description
    The POEM is a 7-item questionnaire that assesses disease symptoms (dryness, itching, flaking, cracking, sleep loss, bleeding and weeping) with a scoring system of 0 (absent disease) to 28 (severe disease) (high score indicative of poor quality of life [QOL]). Values after first rescue treatment used were set to missing (censoring) before MI.
    Time Frame
    Baseline through Week 36
    Title
    Absolute Change From Baseline in Dermatology Life Quality Index (DLQI) Through Week 36
    Description
    The DLQI is a 10-item, validated questionnaire used in clinical practice and clinical trials to assess the impact of AD disease symptoms and treatment on quality of life (QOL). The 10 questions assessed QOL over the past week, with an overall scoring of 0 (absent disease) to 30 (severe disease); a high score was indicative of a poor QOL. Values after first rescue treatment used were set to missing before MI.
    Time Frame
    Baseline through Week 36
    Title
    Absolute Change From Baseline in Hospital Anxiety Depression Scale (HADS) Through Week 36
    Description
    HADS is a fourteen item scale. Seven of the items relate to anxiety and seven items relate to depression. Each item on the questionnaire is scored from 0 (minimum score) - 3 (maximum score) and this means that a person can score between 0 (no symptoms) and 21 (severe symptoms) for either anxiety or depression. Cut-offs for identifying psychiatric distress has been reported as 7 to 8 for possible presence, 10 to 11 for probable presence, and 14 to 15 for severe anxiety or depression. Values after first rescue treatment used were set to missing before MI.
    Time Frame
    Baseline through Week 36
    Title
    Difference Between Current Study Baseline and Week 36 in Percent Change in SCORAD From Parent Study Baseline
    Description
    SCORAD is a clinical tool for assessing the severity of AD developed by the European Task Force on Atopic Dermatitis (Severity scoring of atopic dermatitis: the SCORAD index). Consensus Report of the European Task Force on Atopic Dermatitis. Dermatology (Basel) 186 (1): 23-31. 1993. Extent and intensity of eczema as well as subjective signs (insomnia, etc.) are assessed and scored. Total score ranges from 0 (absent disease) to 103 (severe disease). Values after first rescue treatment used were set to missing before MI.
    Time Frame
    Baseline (Parent Study), Baseline (Current Study) and Week 36 (Current study)
    Title
    Difference Between Current Study Baseline and Week 35 in Percent Change in Peak Weekly Pruritus NRS From Parent Study Baseline
    Description
    Pruritus NRS was an assessment tool that was used to report the intensity of a participant's pruritus (itch), both maximum and average intensity, during a 24-hour recall period. Participants were asked the following question: how would a participant rate his itch at the worst moment during the previous 24 hours (for maximum itch intensity on a scale of 0 - 10 [0 = no itch; 10 = worst itch imaginable]). Values after first rescue treatment used were set to missing before MI.
    Time Frame
    Baseline (Parent Study), Baseline (Current Study) and Week 35 (Current study)
    Title
    Annualized Event Rate of Skin Infection Treatment- Emergent Adverse Events (TEAEs)
    Description
    Any untoward medical occurrence in a participant who received investigational medicinal product (IMP) was considered an AE without regard to possibility of causal relationship with this treatment. Treatment- emergent adverse events (TEAEs) were defined as AEs that developed or worsened or became serious during on- treatment period (time from the first dose of study drug up to the end of study [Week 36]). A serious adverse event (SAE) was defined as any untoward medical occurrence that resulted in any of the following outcomes: death, life- threatening, required initial or prolonged in-patient hospitalization, persistent or significant disability/incapacity, congenital anomaly/birth defect, or considered as medically important event. Any TEAE included participants with both serious and non-serious AEs.
    Time Frame
    Baseline through Week 36
    Title
    Annualized Event Rate of Flares
    Description
    Rate of Flares defined as worsening of disease requiring initiation or escalation of rescue treatment.
    Time Frame
    Baseline through week 36
    Title
    Percentage of Well-Controlled Weeks During the On-treatment Period
    Description
    Well-controlled weeks are those in which participants during their weekly IVRS call completion has their eczema been well-controlled over the last week during which no rescue treatments were administered. Percentage of well-controlled weeks during the on-treatment period were reported.
    Time Frame
    Baseline through Week 36

    10. Eligibility

    Sex
    All
    Minimum Age & Unit of Time
    18 Years
    Accepts Healthy Volunteers
    No
    Eligibility Criteria
    Key Inclusion Criteria: Must have completed the treatment phase in 1 of the two 16-week initial treatment studies (R668-AD-1334 or R668-AD-1416). Must have achieved at least 1 of the following 2 treatment success criteria: Investigator Global Assessment (IGA) = 0 or 1 (clear or almost clear) at week 16 OR Eczema Area and Severity Index >= 75% (EASI-75) (at least 75% reduction in EASI score from baseline to week 16) Must be willing and able to comply with clinic visits and study-related procedures Must provide signed informed consent Must be able to understand and complete study-related questionnaires Key Exclusion Criteria: Receipt of rescue medication for AD in the initial treatment study Any conditions that require permanent discontinuation of study treatment in either initial treatment study Planned or anticipated major surgical procedure during the participants's participation in this study Pregnant or breastfeeding women, or women planning to become pregnant or breastfeed during this study Women unwilling to use adequate birth control, if of reproductive potential* and sexually active. Adequate birth control is defined as agreement to consistently practice an effective and accepted method of contraception, whenever engaging in heterosexual intercourse, throughout the duration of the study and for 120 days after last dose of study drug. These include hormonal contraceptives, intrauterine device, or double barrier contraception (e.g, condom + diaphragm), or a male partner with documented vasectomy. Additional requirements for acceptable contraception may apply in certain countries, based on local regulations. Investigators in these countries will be notified accordingly in a protocol clarification letter. (*For females, menopause is defined as at least 12 consecutive months without menses; if in question, a follicle stimulating hormone level of >= 25 milli units per milliliter (mU/mL) must be documented. Hysterectomy, bilateral oophorectomy, or bilateral tubal ligation must be documented, as applicable; if documented, women with these conditions are not required to use additional contraception).
    Overall Study Officials:
    First Name & Middle Initial & Last Name & Degree
    Clinical Trial Management
    Organizational Affiliation
    Regeneron Pharmaceuticals
    Official's Role
    Study Director

    12. IPD Sharing Statement

    Citations:
    PubMed Identifier
    31876900
    Citation
    Worm M, Simpson EL, Thaci D, Bissonnette R, Lacour JP, Beissert S, Kawashima M, Ferrandiz C, Smith CH, Beck LA, Chan KC, Chen Z, Akinlade B, Hultsch T, Staudinger H, Gadkari A, Eckert L, Davis JD, Rajadhyaksha M, Graham NMH, Pirozzi G, Stahl N, Yancopoulos GD, Ardeleanu M. Efficacy and Safety of Multiple Dupilumab Dose Regimens After Initial Successful Treatment in Patients With Atopic Dermatitis: A Randomized Clinical Trial. JAMA Dermatol. 2020 Feb 1;156(2):131-143. doi: 10.1001/jamadermatol.2019.3617.
    Results Reference
    derived

    Learn more about this trial

    A Study to Confirm the Efficacy and Safety of Different Dupilumab Dose Regimens in Adults With Atopic Dermatitis (AD)

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