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临床试验/NCT00543439
NCT00543439已完成3 期

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

Pfizer55 个研究点 分布在 13 个国家目标入组 66 人开始时间: 2007年12月最近更新:
适应症
干预措施

试验速览

阶段
3 期
状态
已完成
发起方
Pfizer
入组人数
66
试验地点
55
主要终点
Mean Annualized Bleed Rate (ABR) by Treatment: On Demand Cohort

研究概览

简要总结

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.

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Crossover
主要目的
Treatment
盲法
None

入排标准

年龄范围
6 Months 至 15 Years(Child)
性别
Male
接受健康志愿者

入选标准

  • 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.

排除标准

  • 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.

研究组 & 干预措施

2

Experimental

Routine Prophylaxis Crossover

干预措施: Moroctocog alfa (AF-CC) (Biological)

1

Experimental

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

干预措施: Moroctocog alfa (AF-CC) (Biological)

结局指标

主要结局

Mean Annualized Bleed Rate (ABR) by Treatment: On Demand Cohort

时间窗: 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)

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).

次要结局

  • Mean of Moroctocog Alfa (AF-CC) Infusions Administered To Treat Bleeding Episode: All Participants(Day 1 up to Month 24)
  • Number of Treated Spontaneous Bleeds by Time Interval Between Bleed Onset and Prior Moroctocog Alfa (AF-CC) Prophylaxis Dose: Routine Prophylaxis Therapy(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))
  • Area Under the Curve From Time Zero to Extrapolated Infinite Time (AUCinf) of Factor VIII Activity(0.5, 8, 24, 28 and 32 hours post dose on Day 1)
  • Mean Residence Time (MRT) of Factor VIII Activity(0.5, 8, 24, 28 and 32 hours post dose on Day 1)
  • Mean Annualized Bleed Rate (ABR) by Treatment: Routine Prophylaxis Cohort(Day 1 up to Month 24 (RP Cohort, Period 1 and Period 2))
  • Terminal Phase Half Life (t1/2) of Factor VIII (FVIII) Activity(0.5, 8, 24, 28 and 32 hours post dose on Day 1)
  • Incremental Recovery of Factor VIII Activity(Day 1, Month 6)
  • Area Under the Curve From Time Zero to Last Measurable Concentration (AUClast) of Factor VIII Activity(0.5, 8, 24, 28 and 32 hours post dose on Day 1)
  • Steady-State Volume of Distribution (Vss) of Factor VIII Activity(0.5, 8, 24, 28 and 32 hours post dose on Day 1)
  • Number of Participants With Treatment Emergent Adverse Events (AEs) According to Severity(Day 1 up to Month 25)
  • Number of Participants With Incidence of Less Than Expected Therapeutic Effect (LETE): Routine Prophylaxis Therapy(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))
  • 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)(Day 1 up to Month 24)
  • Number of Participants Requiring Prophylaxis Regimen Escalation: Routine Prophylaxis Therapy(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))
  • Mean of Total Number Moroctocog Alfa (AF-CC) Infusions Received: Routine Prophylaxis Therapy(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))
  • Mean of Total Number of Infusions of Moroctocog Alfa (AF-CC) Received Per Week to Assess Compliance: Routine Prophylaxis Therapy(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))
  • Maximum Concentration of Factor VIII Activity(0.5, 8, 24, 28 and 32 hours post dose on Day 1)
  • Number of Participants With Treatment-Related Adverse Events(Day 1 up to Month 25)
  • Mean Routine Prophylaxis Dose (IU/kg) of Moroctocog Alfa (AF-CC) Received: Routine Prophylaxis Therapy(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))
  • Mean of Total Number of Days Participants Exposed to Moroctocog Alfa (AF-CC): Routine Prophylaxis Therapy(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))
  • Clearance (CL) of Factor VIII Activity(0.5, 8, 24, 28 and 32 hours post dose on Day 1)
  • Number of Participants With Confirmed FVIII Inhibitor Development(Day 1 up to Month 24)
  • Number of Participants With Incidence of Less Than Expected Therapeutic Effect (LETE): On Demand Therapy(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))

研究者

发起方
Pfizer
申办方类型
Industry
责任方
Sponsor

研究点 (55)

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