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临床试验/NCT00423592
NCT00423592已完成2 期

A Phase 2, Open-label, Multicenter Study Evaluating Ambrisentan in Subjects With Pulmonary Arterial Hypertension Who Have Previously Discontinued Endothelin Receptor Antagonist Therapy Due to Serum Aminotransferase Abnormalities

Gilead Sciences0 个研究点目标入组 36 人开始时间: 2005年5月1日最近更新:
适应症
相关药物

试验速览

阶段
2 期
状态
已完成
入组人数
36
主要终点
The Incidence of Confirmed Serum Alanine Aminotransferase (ALT) or Aspartate Aminotransferase (AST) Concentrations > 3 x the Upper Limit of Normal (ULN) Considered to be Related to Ambrisentan and Resulted in Discontinuation of Study Drug.

研究概览

简要总结

This Phase 2 study was to determine the incidence of increased serum aminotransferase concentrations (alanine aminotransferase [ALT] and/or aspartate aminotransferase [AST]), as well as the overall safety and tolerability of ambrisentan, in participants with pulmonary arterial hypertension (PAH), idiopathic PAH (IPAH), or familial PAH (FPAH) who had previously discontinued ERA therapy (bosentan or sitaxsentan) due to increased serum ALT or AST concentrations.

研究设计

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

入排标准

年龄范围
12 Years 至 75 Years(Child, Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Males and Females between 12 and 75 years of age
  • Current diagnosis of IPAH, FPAH, or PAH associated with collagen vascular disease, congenital systemic-to-pulmonary shunts, anorexigen use, HIV infection
  • Must have previously discontinued bosentan or sitaxsentan therapy due to serum aminotransferase (ALT and/or AST) concentrations > 3 x ULN
  • Must have normal (< 1 x ULN) serum ALT and AST concentrations at screening
  • Six-minute Walk distance of at least 150 meters at screening
  • If receiving sildenafil or a clinically approved prostanoid for PAH, must have been on stable therapy for at least 4 weeks prior to screening
  • Subjects with a diagnosis of HIV must have stable disease status during the screening period

排除标准

  • 未提供

结局指标

主要结局

The Incidence of Confirmed Serum Alanine Aminotransferase (ALT) or Aspartate Aminotransferase (AST) Concentrations > 3 x the Upper Limit of Normal (ULN) Considered to be Related to Ambrisentan and Resulted in Discontinuation of Study Drug.

时间窗: Week 12

The number of participants in the safety analysis set with confirmed serum ALT or AST concentrations \> 3 x ULN during 12 weeks of ambrisentan therapy that were related to ambrisentan and resulted in discontinuation of study drug. Safety analysis set included all participants who received at least 1 dose of study drug.

次要结局

  • A Change From Baseline Evaluated After 12 Weeks of Ambrisentan Therapy in WHO Functional Class(Baseline to Week 12)
  • Secondary Outcome: A Change From Baseline Evaluated After 12 Weeks of Ambrisentan Therapy in SF-36 Health Survey Scale - Composite Mental Health(Baseline to Week 12)
  • Secondary Outcome: A Change From Baseline Evaluated After 12 Weeks of Ambrisentan Therapy in SF-36 Health Survey Scale - Role Physical(Baseline to Week 12)
  • The Incidence of Confirmed Serum ALT or AST Concentrations > 5 x ULN That Were Related to Ambrisentan and Resulted in Discontinuation of Study Drug.(Week 12)
  • The Incidence of Confirmed Serum ALT or AST Concentrations > 3 x ULN That Were Related to Ambrisentan and Resulted in Dose Reduction(Week 12)
  • A Change From Baseline Evaluated After 12 Weeks of Ambrisentan Therapy in Short Form 36 (SF-36) Health Survey Scale - Composite Physical Health(Baseline to Week 12)
  • A Change From Baseline Evaluated After 12 Weeks of Ambrisentan Therapy in the 6-Minute Walk Distance Test (6MWD)(Baseline to Week 12)
  • A Change From Baseline Evaluated After 12 Weeks of Ambrisentan Therapy in Borg Dyspnea Index Immediately Following Exercise(Baseline to Week 12)
  • Secondary Outcome: A Change From Baseline Evaluated After 12 Weeks of Ambrisentan Therapy in SF-36 Health Survey Scale - Physical Functioning(Baseline to Week 12)
  • Secondary Outcome: A Change From Baseline Evaluated After 12 Weeks of Ambrisentan Therapy in SF-36 Health Survey Scale - Bodily Pain(Baseline to Week 12)
  • Secondary Outcome: A Change From Baseline Evaluated After 12 Weeks of Ambrisentan Therapy in SF-36 Health Survey Scale - Social Functioning(Baseline to Week 12)
  • Secondary Outcome: A Change From Baseline Evaluated After 12 Weeks of Ambrisentan Therapy in SF-36 Health Survey Scale - Mental Health(Baseline to Week 12)
  • Secondary Outcome: A Change From Baseline Evaluated After 12 Weeks of Ambrisentan Therapy in SF-36 Health Survey Scale - General Health(Baseline to Week 12)
  • Secondary Outcome: A Change From Baseline Evaluated After 12 Weeks of Ambrisentan Therapy in SF-36 Health Survey Scale - Vitality(Baseline to Week 12)
  • Secondary Outcome: A Change From Baseline Evaluated After 12 Weeks of Ambrisentan Therapy in SF-36 Health Survey Scale - Role Emotional(Baseline to Week 12)

研究者

申办方类型
Industry
责任方
Sponsor

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