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临床试验/NCT01732471
NCT01732471已完成3 期

A Phase III Non-comparative Open-label Clinical Study to Evaluate the Response to and Safety of Kuvan (Sapropterin Dihydrochloride) After 6 Weeks of Treatment in Patients of 4 to 18 Years of Age With Phenylketonuria Who Have Elevated Blood Phenylalanine Levels

Merck KGaA, Darmstadt, Germany1 个研究点 分布在 1 个国家目标入组 90 人开始时间: 2012年11月最近更新:
适应症
干预措施
相关药物

试验速览

阶段
3 期
状态
已完成
入组人数
90
试验地点
1
主要终点
Percentage of Participants With Response to Kuvan® (Sapropterin Dihydrochloride) Treatment

研究概览

简要总结

This is an open-label, non-comparative, Phase 3 study to evaluate the degree, frequency of response and safety of Kuvan® (sapropterin dihydrochloride) in subjects aged 4 to 18 years who have phenylketonuria and with elevated blood phenylalanine level of greater than or equal to 450 micromole per liter.

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
None

入排标准

年龄范围
4 Years 至 18 Years(Child, Adult)
性别
All
接受健康志愿者

入选标准

  • Willing and able to provide written informed consent (for children under 18 years old the parent[s]/guardians give informed consent, subjects 14-17 years old give additionally their own written informed consent)
  • Age of 4 - 18 years, inclusive
  • Confirmed clinical and biochemical hyperphenylalaninemia due to phenylketonuria documented by past medical history with at least 2 blood phenylalanine level greater than or equal to 400 micromole per liter obtained in 2 separate occasions
  • Blood phenylalanine level at screening greater than or equal to 450 micromole per liter (mean of two measurements)
  • For women of childbearing potential, a negative urine pregnancy test is required at screening and willingness to use a highly effective method of contraception is required while participating in the study
  • Subject and/or the parent/guardian willing and able to comply with study procedures
  • Subject and/or the parent/guardian willing to continue current diet unchanged during the 8 days response test and to adapt the diet according to phenylalanine therapeutic target range during the 6 week treatment period

排除标准

  • Subject already assessed for responsiveness to sapropterin dihydrochloride or other tetrahydrobiopterin (BH4)
  • Used any investigational agent other than Kuvan® (sapropterin dihydrochloride) within 30 days of screening, or required any investigational agent or vaccine prior to completion of all scheduled study assessments
  • Pregnant or breastfeeding, or considering pregnancy
  • Concurrent disease or conditions that would interfere with study participation or safety (for example, seizure disorder, asthma or other condition requiring oral or parenteral corticosteroid administration, insulin-dependent diabetes, or organ transplantation recipient)
  • Concurrent use of required concomitant treatment with any drug known to inhibit folate synthesis (for example, methotrexate), levodopa, phosphodiesterase type-5 (PDE-5) inhibitors (such as, sildenafil, vardenafil or tadalafil), medications that are known to affect nitric oxide synthesis metabolism or action
  • Any conditions, that, in the view of the Principal Investigator renders the subject at high risk for failure to comply with treatment or to complete the study
  • Clinical diagnosis of primary BH4 deficiency
  • Known hypersensitivity to Kuvan® (sapropterin dihydrochloride) or its excipients or to other approved or non-approved formulation of tetrabiopterin

研究组 & 干预措施

Kuvan®

Experimental

干预措施: Kuvan® (Drug)

结局指标

主要结局

Percentage of Participants With Response to Kuvan® (Sapropterin Dihydrochloride) Treatment

时间窗: Day 8

Response to Kuvan® (sapropterin dihydrochloride) treatment was defined as a reduction in blood phenylalanine levels of greater than or equal to 30% at Day 8 as compared to baseline.

次要结局

  • Percent Change From Baseline in Blood Phenylalanine Levels at Day 8 in Sub-population of Responders(Baseline, Day 8)
  • Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs) in Overall Safety Population(Baseline up to Week 11)
  • Percent Change From Baseline in Blood Phenylalanine Levels at Day 8 in Overall Population(Baseline, Day 8)

研究者

申办方类型
Industry
责任方
Sponsor

研究点 (1)

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