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Study Evaluating Prophylaxis Treatment & Characterizing Efficacy, Safety, & PK Of B-Domain Deleted Recombinant FVIII

Primary Purpose

Hemophilia A

Status
Completed
Phase
Phase 3
Locations
International
Study Type
Interventional
Intervention
Moroctocog alfa (AF-CC)
Moroctocog alfa (AF-CC)
Sponsored by
Pfizer
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Hemophilia A

Eligibility Criteria

6 Months - 15 Years (Child)MaleDoes not accept healthy volunteers

Inclusion Criteria:

  • Male subjects, aged less than 6 years, with moderately severe to severe hemophilia A.
  • A negative FVIII inhibitor titer at screening, and a medical history negative for a past FVIII inhibitor.
  • At least 20 exposure days to any FVIII replacement product.
  • Adequate hepatic and renal function
  • CD4 count > 400 cells/uL, and if receiving antiviral therapy must be on a stable regimen

Additional criteria for subjects participating in the PK assessment:

  • Male subjects as described immediately above except they must have a FVIII Activity of less than or equal to 1% confirmed by the central laboratory screening test
  • Age < 6 years at time of PK assessment.
  • The subject's size is sufficient to permit PK-related phlebotomy.
  • The subject is able to comply with the procedures conducted during the PK assessment, including a mandatory 72-hour washout period preceding the PK assessment.

Exclusion Criteria:

  • A history of FVIII inhibitor.
  • Presence of a bleeding disorder in addition to hemophilia A.
  • Treatment with any investigational drug or device within 30 days before the time of signing the informed consent form.
  • Major or orthopedic surgery planned to occur during the course of the study.
  • Regular (e.g., daily, every other day) use of antifibrinolytic agents or medications known to influence platelet function such as aspirin or certain nonsteroidal anti-inflammatory drugs (NSAIDs), or regular, concomitant therapy with immunomodulating drugs (e.g., intravenous immunoglobulin [IVIG], routine systemic corticosteroids).
  • Known hypersensitivity to hamster protein.

Sites / Locations

  • Cincinnati Children's Hospital Medical Center
  • OHSU Investigational Pharmacy
  • Oregon Health & Science University
  • Childrens Medical Center Dallas
  • University of Texas Southwestern Medical Center at Dallas
  • University of Utah
  • Primary Children's Hospital
  • Fundacion de la Hemofilia
  • Medizinische Universitaet Wien
  • Liga Colombiana de Hemofílicos y otras Deficiencias Sanguíneas
  • Clinical Hospital Centre Split
  • Jordan University of Science and Technology, King Abdullah University Hospital
  • Hospital Civil de Guadalajara Dr. Juan I. Menchaca
  • Hospital y Clinica OCA S.A. de C.V.
  • Hospital Universitario "Dr. Jose Eleuterio Gonzalez"
  • Christchurch Hospital
  • Canterbury District Health Board
  • Sultan Qaboos University Hospital
  • Centro Medico Monte Carmelo
  • Samodzielny Publiczny Dzieciecy Szpital Kliniczny
  • Sanador
  • Cukurova University Tip Fakultesi
  • Ege Universitesi Tip Fakultesi Cocuk Hastanesi
  • Istanbul Universtesi Istanbul Tip Fakultesi
  • On Dokuz Mayis University Faculty of Medicine
  • Akdeniz Universitesi Tip Fakultesi
  • Dr. Behcet Uz Child and Diseases And Surgery Education and Research Hospital
  • Erciyes Universitesi Tip Fakultesi

Arms of the Study

Arm 1

Arm 2

Arm Type

Experimental

Experimental

Arm Label

1

2

Arm Description

On-Demand therapy for 6 months, followed by Routine Prophylaxis treatment for 1 year.

Routine Prophylaxis Crossover

Outcomes

Primary Outcome Measures

Mean Annualized Bleed Rate (ABR) by Treatment: On Demand Cohort
ABR for each participant was calculated as the number of bleeds requiring administration of moroctocog alfa (AF-CC) divided by the total therapy duration (in days), then multiplied by 365.25 (days in a year).

Secondary Outcome Measures

Mean Annualized Bleed Rate (ABR) by Treatment: Routine Prophylaxis Cohort
ABR for each participant was calculated as the number of bleeds requiring administration of moroctocog alfa (AF-CC) divided by the total therapy duration (in days), then multiplied by 365.25 (days in a year).
Mean of Moroctocog Alfa (AF-CC) Infusions Administered To Treat Bleeding Episode: All Participants
In this outcome measure, the mean of total number of moroctocog alfa (AF-CC) on-demand infusions administered to treat each bleeding episode was reported, regardless of participant cohort or period during which it occurred.
Number of Treated Bleeds Classified on Basis of Response to First Infusion of Moroctocog Alfa (AF-CC) as On-Demand Treatment: OD Therapy (OD and RP Cohort)
Number (no.) of bleeds treated are reported on basis of response to first infusion of study drug, at 4-point scale: excellent, good, moderate, no response. Excellent:definite pain relief and/or improvement in bleeding signs within 8 hours (hr) after infusion, no additional infusion administered; Good:definite pain relief and/or improvement in bleeding signs within 8 hr after infusion, at least 1 additional infusion administered for complete resolution or with no additional infusion administered; Moderate:probable or slight improvement starting after 8 hr following infusion,at least 1 additional infusion administered for complete resolution; No Response: no improvement at all between infusions or during 24 hr interval following infusion or condition worsen. Bleeds for which response not recorded, reported as:Data Not Recorded. Total no. of first infusions may not be equal to total no. of bleeds if bleed was: missing start date/dose information or treated initially with non-study FVIII.
Number of Treated Spontaneous Bleeds by Time Interval Between Bleed Onset and Prior Moroctocog Alfa (AF-CC) Prophylaxis Dose: Routine Prophylaxis Therapy
In this outcome measure number of treated spontaneous bleeds are reported according to the time interval between bleed onset and prior moroctocog alfa (AF-CC) routine prophylaxis dose. Following time intervals used to report this outcome measure: lesser than or equal to (<=) 24 hours, greater than (>) 24 hours to <=48 hours, >48 hours to <=72 hours, >72 hours. For reporting arm: "Moroctocog alfa (AF-CC),OD and RP Cohort: RP Therapy 25 IU/kg" cumulative data for routine prophylaxis cohort (Day 1 up to Month 24, Period 1 and Period 2) and on demand cohort (Month 7 up to Month 18, Period 2) is reported.
Number of Participants Requiring Prophylaxis Regimen Escalation: Routine Prophylaxis Therapy
During prophylaxis, criteria for prophylaxis regimen escalation are the occurrence, over a 4-week duration (and in the absence of a confirmed FVIII inhibitor), of (a) 2 or more spontaneous bleeds into a major joint and/or target joint, or (b) 3 or more spontaneous bleeds (consisting of joint bleeds and/or significant soft tissue/muscle or other site bleeds). If either criterion was met, the participant was escalated to a more intense prophylaxis regimen of 45 IU/kg, administered every other day. Participant who meet dose escalation criteria while on prophylaxis regimen of 45 IU/kg, were escalated to a higher intensity regimen designated by the investigator. Significant spontaneous bleeds were those that led to a transient or persistent loss of function. For reporting arm: "Moroctocog alfa (AF-CC),OD and RP Cohort: RP Therapy 25 IU/kg", cumulative data for RP cohort (Day 1 up to Month 24, Period 1 and Period 2) and OD cohort (Month 7 up to Month 18, Period 2) is reported.
Mean Routine Prophylaxis Dose (IU/kg) of Moroctocog Alfa (AF-CC) Received: Routine Prophylaxis Therapy
Mean RP dose (by weight) for each participant was calculated as his total moroctocog alfa (AF-CC) consumption (in IU) divided by weight (in kg). For reporting arm: "Moroctocog alfa (AF-CC),OD and RP Cohort: RP Therapy 25 IU/kg", cumulative data for routine prophylaxis cohort (Day 1 up to Month 24, Period 1 and Period 2) and on demand cohort (Month 7 up to Month 18, Period 2) is reported.
Mean of Total Number Moroctocog Alfa (AF-CC) Infusions Received: Routine Prophylaxis Therapy
In this outcome measure mean of total number of infusions of moroctocog alfa (AF-CC) received by participant is reported. For reporting arm: "Moroctocog alfa (AF-CC),OD and RP Cohort: RP Therapy 25 IU/kg", cumulative data for routine prophylaxis cohort (Day 1 up to Month 24, Period 1 and Period 2) and on demand cohort (Month 7 up to Month 18, Period 2) is reported.
Mean of Total Number of Days Participants Exposed to Moroctocog Alfa (AF-CC): Routine Prophylaxis Therapy
For reporting arm: "Moroctocog alfa (AF-CC),OD and RP Cohort: RP Therapy 25 IU/kg", cumulative data for routine prophylaxis cohort (Day 1 up to Month 24, Period 1 and Period 2) and on demand cohort (Month 7 up to Month 18, Period 2) is reported.
Mean of Total Number of Infusions of Moroctocog Alfa (AF-CC) Received Per Week to Assess Compliance: Routine Prophylaxis Therapy
Participants' compliance to their assigned prophylaxis regimen was measured by following: a) number of infusions received per week and b) dose received. In this outcome measure mean of total number of infusions of moroctocog alfa (AF-CC) received by participants per week is reported. For reporting arm: "Moroctocog alfa (AF-CC),OD and RP Cohort: RP Therapy 25 IU/kg" cumulative data for routine prophylaxis cohort (Day 1 up to Month 24, Period 1 and Period 2) and on demand cohort (Month 7 up to Month 18, Period 2) is reported.
Terminal Phase Half Life (t1/2) of Factor VIII (FVIII) Activity
Plasma decay half-life is the time measured for the FVIII activity to decrease by one half.
Clearance (CL) of Factor VIII Activity
Clearance is a measure of the volume of plasma from which FVIII activity is removed per unit time. It was reported in units milliliter per hour per kilogram (mL/hr/kg).
Incremental Recovery of Factor VIII Activity
Incremental recovery was the increase in circulating FVIII activity for every international unit (IU) of moroctocog alfa (AF-CC) administered per kilogram of body weight of participant. It was measured in international units per deciliter per international units per kilogram ([IU/dL]/[IU/kg]).
Maximum Concentration of Factor VIII Activity
Maximum concentration of FVIII activity was measured in international units per milliliter (IU/mL).
Area Under the Curve From Time Zero to Extrapolated Infinite Time (AUCinf) of Factor VIII Activity
Area under FVIII activity-time profile from time zero extrapolated to infinite time. AUCinf is reported in units: international units*hour per milliliter (IU*hour/mL).
Area Under the Curve From Time Zero to Last Measurable Concentration (AUClast) of Factor VIII Activity
Area under the FVIII activity -versus-time curve from time zero to the time of the last quantifiable concentration.
Steady-State Volume of Distribution (Vss) of Factor VIII Activity
Volume of distribution is defined as the theoretical volume in which the total amount of FVIII would need to be uniformly distributed to produce the observed plasma concentration of FVIII. Steady state volume of distribution (Vss) is the apparent volume of distribution at steady-state.
Mean Residence Time (MRT) of Factor VIII Activity
MRT was calculated as AUMCinf /AUCinf-TI/2, where AUMCinf is the area under the moment curve from time zero to infinity and TI is the duration of infusion.
Number of Participants With Treatment Emergent Adverse Events (AEs) According to Severity
AE is untoward medical occurrence in clinical investigation participant administered product or medical device;event need not necessarily had causal relationship with treatment or usage.Treatment-emergent are events between first dose of study drug and up to 28 days after last dose of study drug (up to 25 months)that were absent before treatment or that worsened relative to pretreatment state.AEs were classified into following on basis of severity:1)mild = did not interfere with participant's usual function;2)moderate=interfered to some extent with participant's usual function;3)severe=interfered significantly with participant's usual function;4)life threatening=AE required discontinuation of study drug,participant was at immediate risk of death.All participants in study received AF-CC.AEs were not collected separately for each intervention for participants.All participants were properly combined for analysis,regardless of regimen were following at time,regardless of OD or RP cohort.
Number of Participants With Treatment-Related Adverse Events
A treatment related AE is any untoward medical occurrence in a clinical investigation participant administered a product or medical device; the event had a causal relationship with the treatment or usage. All participants in the study received moroctocog alfa-(AF-CC). Adverse events were not collected separately for each intervention for the participants. All participants were properly combined for the analysis and was regardless of the regimen they were following at the time, and regardless of OD or RP cohort.
Number of Participants With Confirmed FVIII Inhibitor Development
Confirmed FVIII inhibitors were defined as a neutralizing antibody to FVIII with a titer value of greater than or equal to (>=) 0.6 Bethesda units (BU) per millimeter in a sample assayed using the Nijmegen assay at the central laboratory.
Number of Participants With Incidence of Less Than Expected Therapeutic Effect (LETE): On Demand Therapy
LETE occurs in OD setting if participant recorded 2 successive "No Response" (no improvement at all between infusions, or condition worsens) ratings after 2 successive infusions of study drug. Infusions must have been given within 24 hours (hr) of each other for treatment of same bleeding event in absence of confounding factors (known presence or subsequent identification of a FVIII inhibitor, known inadequate dose for type and/or severity of bleed in opinion of investigator, delay of >4 hr between onset of bleed to infusion, delay of >24 hr before administration of a follow-up infusion, known compromised study drug, faulty administration of study drug, participant had an underlying, predisposing condition responsible for bleed in opinion of investigator. For reporting arm: "Moroctocog alfa (AF-CC), OD and RP Cohort: RP Therapy 25 IU/kg", cumulative data for RP cohort (Day 1 up to Month 24, Period 1 and Period 2) and OD cohort (Month 7 up to Month 18, Period 2) is reported.
Number of Participants With Incidence of Less Than Expected Therapeutic Effect (LETE): Routine Prophylaxis Therapy
LETE in prophylaxis setting if there was a spontaneous bleed within 48 hours after a regularly scheduled prophylactic dose of study drug (which was not used to treat a bleed) in the absence of confounding factors (known presence or subsequent identification of a FVIII inhibitor, known inadequate prophylactic dose [a dose less than that prescribed in participant's regimen], known lack of adherence to the prescribed prophylaxis regimen, bleed occurs in a target joint identified at the start of the study, known compromised study drug, faulty administration of study drug, participant had an underlying, predisposing condition responsible for the bleed in the opinion of the investigator. Therefore, LETE in the prophylaxis setting was the occurrence of a bleed. For reporting arm: "Moroctocog alfa (AF-CC), OD and RP Cohort: RP Therapy 25 IU/kg", cumulative data for RP cohort (Day 1 up to Month 24, Period 1 and Period 2) and OD cohort (Month 7 up to Month 18, Period 2) is reported.

Full Information

First Posted
October 11, 2007
Last Updated
December 14, 2018
Sponsor
Pfizer
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1. Study Identification

Unique Protocol Identification Number
NCT00543439
Brief Title
Study Evaluating Prophylaxis Treatment & Characterizing Efficacy, Safety, & PK Of B-Domain Deleted Recombinant FVIII
Official Title
An Open-label Study To Evaluate Prophylaxis Treatment, And To Characterize The Efficacy, Safety, And Pharmacokinetics Of B-domain Deleted Recombinant Factor Viii Albumin Free (Moroctocog Alfa [Af-cc]) In Children With Hemophilia A
Study Type
Interventional

2. Study Status

Record Verification Date
December 2018
Overall Recruitment Status
Completed
Study Start Date
December 2007 (Actual)
Primary Completion Date
April 2018 (Actual)
Study Completion Date
April 2018 (Actual)

3. Sponsor/Collaborators

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

4. Oversight

Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
The purpose of this research study is to determine the effectiveness, safety, and pharmacokinetics (PK) of moroctocog alfa (AF-CC) in previously treated subjects, who are younger than 6 years of age, with severe or moderately severe hemophilia A.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Hemophilia A

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 3
Interventional Study Model
Crossover Assignment
Masking
None (Open Label)
Allocation
Randomized
Enrollment
66 (Actual)

8. Arms, Groups, and Interventions

Arm Title
1
Arm Type
Experimental
Arm Description
On-Demand therapy for 6 months, followed by Routine Prophylaxis treatment for 1 year.
Arm Title
2
Arm Type
Experimental
Arm Description
Routine Prophylaxis Crossover
Intervention Type
Biological
Intervention Name(s)
Moroctocog alfa (AF-CC)
Other Intervention Name(s)
Xyntha
Intervention Description
On-demand therapy for 6 months, followed by routine prophylaxis 25 IU/kg, administered every other day for 1 year.
Intervention Type
Biological
Intervention Name(s)
Moroctocog alfa (AF-CC)
Other Intervention Name(s)
Xyntha
Intervention Description
Routine prophylaxis crossover: 45 IU/kg, administered 2 times a week for 1 year followed by 25 IU/kg administered every other day for 1 year, or, 25 IU/kg, administered every other day for 1 year, followed by 45 IU/kg, administered 2 times a week for 1 year.
Primary Outcome Measure Information:
Title
Mean Annualized Bleed Rate (ABR) by Treatment: On Demand Cohort
Description
ABR for each participant was calculated as the number of bleeds requiring administration of moroctocog alfa (AF-CC) divided by the total therapy duration (in days), then multiplied by 365.25 (days in a year).
Time Frame
Day 1 up to Month 6 (OD Cohort, OD Therapy, Period 1); Month 7 up to Month 18 (OD Cohort, RP 25 IU/kg, Period 2)
Secondary Outcome Measure Information:
Title
Mean Annualized Bleed Rate (ABR) by Treatment: Routine Prophylaxis Cohort
Description
ABR for each participant was calculated as the number of bleeds requiring administration of moroctocog alfa (AF-CC) divided by the total therapy duration (in days), then multiplied by 365.25 (days in a year).
Time Frame
Day 1 up to Month 24 (RP Cohort, Period 1 and Period 2)
Title
Mean of Moroctocog Alfa (AF-CC) Infusions Administered To Treat Bleeding Episode: All Participants
Description
In this outcome measure, the mean of total number of moroctocog alfa (AF-CC) on-demand infusions administered to treat each bleeding episode was reported, regardless of participant cohort or period during which it occurred.
Time Frame
Day 1 up to Month 24
Title
Number of Treated Bleeds Classified on Basis of Response to First Infusion of Moroctocog Alfa (AF-CC) as On-Demand Treatment: OD Therapy (OD and RP Cohort)
Description
Number (no.) of bleeds treated are reported on basis of response to first infusion of study drug, at 4-point scale: excellent, good, moderate, no response. Excellent:definite pain relief and/or improvement in bleeding signs within 8 hours (hr) after infusion, no additional infusion administered; Good:definite pain relief and/or improvement in bleeding signs within 8 hr after infusion, at least 1 additional infusion administered for complete resolution or with no additional infusion administered; Moderate:probable or slight improvement starting after 8 hr following infusion,at least 1 additional infusion administered for complete resolution; No Response: no improvement at all between infusions or during 24 hr interval following infusion or condition worsen. Bleeds for which response not recorded, reported as:Data Not Recorded. Total no. of first infusions may not be equal to total no. of bleeds if bleed was: missing start date/dose information or treated initially with non-study FVIII.
Time Frame
Day 1 up to Month 24
Title
Number of Treated Spontaneous Bleeds by Time Interval Between Bleed Onset and Prior Moroctocog Alfa (AF-CC) Prophylaxis Dose: Routine Prophylaxis Therapy
Description
In this outcome measure number of treated spontaneous bleeds are reported according to the time interval between bleed onset and prior moroctocog alfa (AF-CC) routine prophylaxis dose. Following time intervals used to report this outcome measure: lesser than or equal to (<=) 24 hours, greater than (>) 24 hours to <=48 hours, >48 hours to <=72 hours, >72 hours. For reporting arm: "Moroctocog alfa (AF-CC),OD and RP Cohort: RP Therapy 25 IU/kg" cumulative data for routine prophylaxis cohort (Day 1 up to Month 24, Period 1 and Period 2) and on demand cohort (Month 7 up to Month 18, Period 2) is reported.
Time Frame
Day 1 up to Month 24 (RP Cohort, RP 25 IU/kg and 45 IU/kg, Period 1 and 2); Month 7 up to Month 18 (OD Cohort, RP 25 IU/kg, Period 2)
Title
Number of Participants Requiring Prophylaxis Regimen Escalation: Routine Prophylaxis Therapy
Description
During prophylaxis, criteria for prophylaxis regimen escalation are the occurrence, over a 4-week duration (and in the absence of a confirmed FVIII inhibitor), of (a) 2 or more spontaneous bleeds into a major joint and/or target joint, or (b) 3 or more spontaneous bleeds (consisting of joint bleeds and/or significant soft tissue/muscle or other site bleeds). If either criterion was met, the participant was escalated to a more intense prophylaxis regimen of 45 IU/kg, administered every other day. Participant who meet dose escalation criteria while on prophylaxis regimen of 45 IU/kg, were escalated to a higher intensity regimen designated by the investigator. Significant spontaneous bleeds were those that led to a transient or persistent loss of function. For reporting arm: "Moroctocog alfa (AF-CC),OD and RP Cohort: RP Therapy 25 IU/kg", cumulative data for RP cohort (Day 1 up to Month 24, Period 1 and Period 2) and OD cohort (Month 7 up to Month 18, Period 2) is reported.
Time Frame
Day 1 up to Month 24 (RP Cohort, RP 25 IU/kg and 45 IU/kg, Period 1 and 2); Month 7 up to Month 18 (OD Cohort, RP 25 IU/kg, Period 2)
Title
Mean Routine Prophylaxis Dose (IU/kg) of Moroctocog Alfa (AF-CC) Received: Routine Prophylaxis Therapy
Description
Mean RP dose (by weight) for each participant was calculated as his total moroctocog alfa (AF-CC) consumption (in IU) divided by weight (in kg). For reporting arm: "Moroctocog alfa (AF-CC),OD and RP Cohort: RP Therapy 25 IU/kg", cumulative data for routine prophylaxis cohort (Day 1 up to Month 24, Period 1 and Period 2) and on demand cohort (Month 7 up to Month 18, Period 2) is reported.
Time Frame
Day 1 up to Month 24 (RP Cohort, RP 25 IU/kg and 45 IU/kg, Period 1 and 2); Month 7 up to Month 18 (OD Cohort, RP 25 IU/kg, Period 2)
Title
Mean of Total Number Moroctocog Alfa (AF-CC) Infusions Received: Routine Prophylaxis Therapy
Description
In this outcome measure mean of total number of infusions of moroctocog alfa (AF-CC) received by participant is reported. For reporting arm: "Moroctocog alfa (AF-CC),OD and RP Cohort: RP Therapy 25 IU/kg", cumulative data for routine prophylaxis cohort (Day 1 up to Month 24, Period 1 and Period 2) and on demand cohort (Month 7 up to Month 18, Period 2) is reported.
Time Frame
Day 1 up to Month 24 (RP Cohort, RP 25 IU/kg and 45 IU/kg, Period 1 and 2); Month 7 up to Month 18 (OD Cohort, RP 25 IU/kg, Period 2)
Title
Mean of Total Number of Days Participants Exposed to Moroctocog Alfa (AF-CC): Routine Prophylaxis Therapy
Description
For reporting arm: "Moroctocog alfa (AF-CC),OD and RP Cohort: RP Therapy 25 IU/kg", cumulative data for routine prophylaxis cohort (Day 1 up to Month 24, Period 1 and Period 2) and on demand cohort (Month 7 up to Month 18, Period 2) is reported.
Time Frame
Day 1 up to Month 24 (RP Cohort, RP 25 IU/kg and 45 IU/kg, Period 1 and 2); Month 7 up to Month 18 (OD Cohort, RP 25 IU/kg, Period 2)
Title
Mean of Total Number of Infusions of Moroctocog Alfa (AF-CC) Received Per Week to Assess Compliance: Routine Prophylaxis Therapy
Description
Participants' compliance to their assigned prophylaxis regimen was measured by following: a) number of infusions received per week and b) dose received. In this outcome measure mean of total number of infusions of moroctocog alfa (AF-CC) received by participants per week is reported. For reporting arm: "Moroctocog alfa (AF-CC),OD and RP Cohort: RP Therapy 25 IU/kg" cumulative data for routine prophylaxis cohort (Day 1 up to Month 24, Period 1 and Period 2) and on demand cohort (Month 7 up to Month 18, Period 2) is reported.
Time Frame
Day 1 up to Month 24 (RP Cohort, RP 25 IU/kg and 45 IU/kg, Period 1 and 2); Month 7 up to Month 18 (OD Cohort, RP 25 IU/kg, Period 2)
Title
Terminal Phase Half Life (t1/2) of Factor VIII (FVIII) Activity
Description
Plasma decay half-life is the time measured for the FVIII activity to decrease by one half.
Time Frame
0.5, 8, 24, 28 and 32 hours post dose on Day 1
Title
Clearance (CL) of Factor VIII Activity
Description
Clearance is a measure of the volume of plasma from which FVIII activity is removed per unit time. It was reported in units milliliter per hour per kilogram (mL/hr/kg).
Time Frame
0.5, 8, 24, 28 and 32 hours post dose on Day 1
Title
Incremental Recovery of Factor VIII Activity
Description
Incremental recovery was the increase in circulating FVIII activity for every international unit (IU) of moroctocog alfa (AF-CC) administered per kilogram of body weight of participant. It was measured in international units per deciliter per international units per kilogram ([IU/dL]/[IU/kg]).
Time Frame
Day 1, Month 6
Title
Maximum Concentration of Factor VIII Activity
Description
Maximum concentration of FVIII activity was measured in international units per milliliter (IU/mL).
Time Frame
0.5, 8, 24, 28 and 32 hours post dose on Day 1
Title
Area Under the Curve From Time Zero to Extrapolated Infinite Time (AUCinf) of Factor VIII Activity
Description
Area under FVIII activity-time profile from time zero extrapolated to infinite time. AUCinf is reported in units: international units*hour per milliliter (IU*hour/mL).
Time Frame
0.5, 8, 24, 28 and 32 hours post dose on Day 1
Title
Area Under the Curve From Time Zero to Last Measurable Concentration (AUClast) of Factor VIII Activity
Description
Area under the FVIII activity -versus-time curve from time zero to the time of the last quantifiable concentration.
Time Frame
0.5, 8, 24, 28 and 32 hours post dose on Day 1
Title
Steady-State Volume of Distribution (Vss) of Factor VIII Activity
Description
Volume of distribution is defined as the theoretical volume in which the total amount of FVIII would need to be uniformly distributed to produce the observed plasma concentration of FVIII. Steady state volume of distribution (Vss) is the apparent volume of distribution at steady-state.
Time Frame
0.5, 8, 24, 28 and 32 hours post dose on Day 1
Title
Mean Residence Time (MRT) of Factor VIII Activity
Description
MRT was calculated as AUMCinf /AUCinf-TI/2, where AUMCinf is the area under the moment curve from time zero to infinity and TI is the duration of infusion.
Time Frame
0.5, 8, 24, 28 and 32 hours post dose on Day 1
Title
Number of Participants With Treatment Emergent Adverse Events (AEs) According to Severity
Description
AE is untoward medical occurrence in clinical investigation participant administered product or medical device;event need not necessarily had causal relationship with treatment or usage.Treatment-emergent are events between first dose of study drug and up to 28 days after last dose of study drug (up to 25 months)that were absent before treatment or that worsened relative to pretreatment state.AEs were classified into following on basis of severity:1)mild = did not interfere with participant's usual function;2)moderate=interfered to some extent with participant's usual function;3)severe=interfered significantly with participant's usual function;4)life threatening=AE required discontinuation of study drug,participant was at immediate risk of death.All participants in study received AF-CC.AEs were not collected separately for each intervention for participants.All participants were properly combined for analysis,regardless of regimen were following at time,regardless of OD or RP cohort.
Time Frame
Day 1 up to Month 25
Title
Number of Participants With Treatment-Related Adverse Events
Description
A treatment related AE is any untoward medical occurrence in a clinical investigation participant administered a product or medical device; the event had a causal relationship with the treatment or usage. All participants in the study received moroctocog alfa-(AF-CC). Adverse events were not collected separately for each intervention for the participants. All participants were properly combined for the analysis and was regardless of the regimen they were following at the time, and regardless of OD or RP cohort.
Time Frame
Day 1 up to Month 25
Title
Number of Participants With Confirmed FVIII Inhibitor Development
Description
Confirmed FVIII inhibitors were defined as a neutralizing antibody to FVIII with a titer value of greater than or equal to (>=) 0.6 Bethesda units (BU) per millimeter in a sample assayed using the Nijmegen assay at the central laboratory.
Time Frame
Day 1 up to Month 24
Title
Number of Participants With Incidence of Less Than Expected Therapeutic Effect (LETE): On Demand Therapy
Description
LETE occurs in OD setting if participant recorded 2 successive "No Response" (no improvement at all between infusions, or condition worsens) ratings after 2 successive infusions of study drug. Infusions must have been given within 24 hours (hr) of each other for treatment of same bleeding event in absence of confounding factors (known presence or subsequent identification of a FVIII inhibitor, known inadequate dose for type and/or severity of bleed in opinion of investigator, delay of >4 hr between onset of bleed to infusion, delay of >24 hr before administration of a follow-up infusion, known compromised study drug, faulty administration of study drug, participant had an underlying, predisposing condition responsible for bleed in opinion of investigator. For reporting arm: "Moroctocog alfa (AF-CC), OD and RP Cohort: RP Therapy 25 IU/kg", cumulative data for RP cohort (Day 1 up to Month 24, Period 1 and Period 2) and OD cohort (Month 7 up to Month 18, Period 2) is reported.
Time Frame
Day 1 up to Month 24 (RP Cohort, RP 25 IU/kg and 45 IU/kg, Period 1 and 2); Day 1 up to Month 6 (OD Cohort, OD Therapy, Period 1); Month 7 up to Month 18 (OD Cohort, RP 25 IU/kg, Period 2)
Title
Number of Participants With Incidence of Less Than Expected Therapeutic Effect (LETE): Routine Prophylaxis Therapy
Description
LETE in prophylaxis setting if there was a spontaneous bleed within 48 hours after a regularly scheduled prophylactic dose of study drug (which was not used to treat a bleed) in the absence of confounding factors (known presence or subsequent identification of a FVIII inhibitor, known inadequate prophylactic dose [a dose less than that prescribed in participant's regimen], known lack of adherence to the prescribed prophylaxis regimen, bleed occurs in a target joint identified at the start of the study, known compromised study drug, faulty administration of study drug, participant had an underlying, predisposing condition responsible for the bleed in the opinion of the investigator. Therefore, LETE in the prophylaxis setting was the occurrence of a bleed. For reporting arm: "Moroctocog alfa (AF-CC), OD and RP Cohort: RP Therapy 25 IU/kg", cumulative data for RP cohort (Day 1 up to Month 24, Period 1 and Period 2) and OD cohort (Month 7 up to Month 18, Period 2) is reported.
Time Frame
Day 1 up to Month 24 (RP Cohort, RP 25 IU/kg and 45 IU/kg, Period 1 and 2); Month 7 up to Month 18 (OD Cohort, RP 25 IU/kg, Period 2)

10. Eligibility

Sex
Male
Gender Based
Yes
Minimum Age & Unit of Time
6 Months
Maximum Age & Unit of Time
15 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Male subjects, aged less than 6 years, with moderately severe to severe hemophilia A. A negative FVIII inhibitor titer at screening, and a medical history negative for a past FVIII inhibitor. At least 20 exposure days to any FVIII replacement product. Adequate hepatic and renal function CD4 count > 400 cells/uL, and if receiving antiviral therapy must be on a stable regimen Additional criteria for subjects participating in the PK assessment: Male subjects as described immediately above except they must have a FVIII Activity of less than or equal to 1% confirmed by the central laboratory screening test Age < 6 years at time of PK assessment. The subject's size is sufficient to permit PK-related phlebotomy. The subject is able to comply with the procedures conducted during the PK assessment, including a mandatory 72-hour washout period preceding the PK assessment. Exclusion Criteria: A history of FVIII inhibitor. Presence of a bleeding disorder in addition to hemophilia A. Treatment with any investigational drug or device within 30 days before the time of signing the informed consent form. Major or orthopedic surgery planned to occur during the course of the study. Regular (e.g., daily, every other day) use of antifibrinolytic agents or medications known to influence platelet function such as aspirin or certain nonsteroidal anti-inflammatory drugs (NSAIDs), or regular, concomitant therapy with immunomodulating drugs (e.g., intravenous immunoglobulin [IVIG], routine systemic corticosteroids). Known hypersensitivity to hamster protein.
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
Cincinnati Children's Hospital Medical Center
City
Cincinnati
State/Province
Ohio
ZIP/Postal Code
45229
Country
United States
Facility Name
OHSU Investigational Pharmacy
City
Portland
State/Province
Oregon
ZIP/Postal Code
97239
Country
United States
Facility Name
Oregon Health & Science University
City
Portland
State/Province
Oregon
ZIP/Postal Code
97239
Country
United States
Facility Name
Childrens Medical Center Dallas
City
Dallas
State/Province
Texas
ZIP/Postal Code
75235
Country
United States
Facility Name
University of Texas Southwestern Medical Center at Dallas
City
Dallas
State/Province
Texas
ZIP/Postal Code
75390-9063
Country
United States
Facility Name
University of Utah
City
Salt Lake City
State/Province
Utah
ZIP/Postal Code
84108
Country
United States
Facility Name
Primary Children's Hospital
City
Salt Lake City
State/Province
Utah
ZIP/Postal Code
84113
Country
United States
Facility Name
Fundacion de la Hemofilia
City
Buenos Aires
ZIP/Postal Code
C1425BWE
Country
Argentina
Facility Name
Medizinische Universitaet Wien
City
Wien
ZIP/Postal Code
1090
Country
Austria
Facility Name
Liga Colombiana de Hemofílicos y otras Deficiencias Sanguíneas
City
Bogota
Country
Colombia
Facility Name
Clinical Hospital Centre Split
City
Split
ZIP/Postal Code
21000
Country
Croatia
Facility Name
Jordan University of Science and Technology, King Abdullah University Hospital
City
Irbid
ZIP/Postal Code
22110
Country
Jordan
Facility Name
Hospital Civil de Guadalajara Dr. Juan I. Menchaca
City
Guadalajara
State/Province
Jalisco
ZIP/Postal Code
44340
Country
Mexico
Facility Name
Hospital y Clinica OCA S.A. de C.V.
City
Colonia Centro
State/Province
Monterrey, Nuevo LEON
ZIP/Postal Code
64000
Country
Mexico
Facility Name
Hospital Universitario "Dr. Jose Eleuterio Gonzalez"
City
Monterrey
State/Province
Nuevo LEON
ZIP/Postal Code
64460
Country
Mexico
Facility Name
Christchurch Hospital
City
Christchurch
State/Province
South Island
ZIP/Postal Code
8001
Country
New Zealand
Facility Name
Canterbury District Health Board
City
Christchurch
ZIP/Postal Code
8001
Country
New Zealand
Facility Name
Sultan Qaboos University Hospital
City
Muscat
ZIP/Postal Code
123
Country
Oman
Facility Name
Centro Medico Monte Carmelo
City
Urbanización La Victoria
State/Province
Arequipa
ZIP/Postal Code
054
Country
Peru
Facility Name
Samodzielny Publiczny Dzieciecy Szpital Kliniczny
City
Warszawa
ZIP/Postal Code
00-576
Country
Poland
Facility Name
Sanador
City
Bucuresti
ZIP/Postal Code
011026
Country
Romania
Facility Name
Cukurova University Tip Fakultesi
City
Balcali/Adana
State/Province
Adana
ZIP/Postal Code
01330
Country
Turkey
Facility Name
Ege Universitesi Tip Fakultesi Cocuk Hastanesi
City
Izmir
State/Province
Bornova
ZIP/Postal Code
35100
Country
Turkey
Facility Name
Istanbul Universtesi Istanbul Tip Fakultesi
City
Capa
State/Province
Istanbul
ZIP/Postal Code
34390
Country
Turkey
Facility Name
On Dokuz Mayis University Faculty of Medicine
City
Samsun
State/Province
Kurupelit
ZIP/Postal Code
55139
Country
Turkey
Facility Name
Akdeniz Universitesi Tip Fakultesi
City
Antalya
ZIP/Postal Code
07059
Country
Turkey
Facility Name
Dr. Behcet Uz Child and Diseases And Surgery Education and Research Hospital
City
Izmir
ZIP/Postal Code
35210
Country
Turkey
Facility Name
Erciyes Universitesi Tip Fakultesi
City
Kayseri
ZIP/Postal Code
38039
Country
Turkey

12. IPD Sharing Statement

Links:
URL
https://trialinfoemail.pfizer.com/pages/landing.aspx?StudyID=3082B2-313&StudyName=Study%20Evaluating%20Prophylaxis%20Treatment%20%26%20Characterizing%20Efficacy%2C%20Safety%2C%20%26%20PK%20Of%20B-Domain%20Deleted%20Recombinant%20FVIII
Description
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Learn more about this trial

Study Evaluating Prophylaxis Treatment & Characterizing Efficacy, Safety, & PK Of B-Domain Deleted Recombinant FVIII

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