Individualized Tertiary Low Dose Prophylaxis for Severe Hemophilia A Children With Arthropathy in China
试验速览
- 阶段
- 不适用
- 发起方
- 入组人数
- 50
- 主要终点
- AJBRs (annualized Joint bleeding rates)
研究概览
简要总结
A multi centre two year long term escalating dose tertiary prophylaxis study on the efficacy and cost saving of individualized low dose prophylaxis regimens for boys with severe hemophilia A in China staring with a low dose regimen in step I, an escalated low dose regimen in step II and a tailored dose regimen based on individual PK profiles in step III. The dose escalation criteria are adjusted according to patterns and frequencies of joint bleeding and assessed in each subject every 3 months. Efficacy of the 3 different dose regimens are measured by the Annualized Joint Bleeding rate (AJBR) as a primary end point and the Hemophilia Joint Health Score (HJHS ) and QoL scores (CHO-KLAT and PedsQoL) , image studies of target joints by Ultrasound, X-ray and MRI examinations, consumption of factor VIII and inhibitor rates as secondary end points.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- Single (Outcomes Assessor)
入排标准
- 年龄范围
- 6 Years 至 10 Years（Child）
- 性别
- Male
- 接受健康志愿者
- 否
入选标准
- •Severe hemophilia A with FVIII <1 %
- •Age from 6 to 10 years
- •Patients with more than 50 exposure day (ED)
- •Patients with one or more target joints (a target joint is defined as a joint with 3 or more bleeds in a consecutive 3 months) or disease joints (defined as presence of visible joint swelling and /or limitation of movements and/or joint deformities in the absent of an acute joint bleed )
- •on-demand treatment more than 12months before the study
排除标准
- •A history of FVIII inhibitor (titer greater than 0.6 BU) and detectable FVIII inhibitor at screening (titer greater than 0.6 BU)
- •Chronic renal failure (serum creatinine greater than 2.0 mg /dL)
- •Chronic Liver disease (ALT greater than 200 U/L))
- •Patients with clinically documented immunodeficiencies
- •Patients anticipated to require Major surgery
- •Patients with competing high risks such as symptomatic HIV infection, Juvenile rheumatoid arthritis, metabolic bone diseases, or other diseases known to mimic or cause joint diseases
- •Patients live too far from the comprehensive care centre at BCH and had demonstrated previous non compliance to therapies or clinical studies
结局指标
主要结局
AJBRs (annualized Joint bleeding rates)
时间窗: three months
次要结局
未报告次要终点
研究者
Runhui WU
Deputy Director of Hematology-Oncology Center
Beijing Children's Hospital