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临床试验/NCT01236378
NCT01236378已完成1 期

An Open-Label, Non-Randomized Study To Evaluate The Steady-State Pharmacokinetics Of Sirolimus Tablets In Chinese Patients With Stable Renal Allografts

Pfizer1 个研究点 分布在 1 个国家目标入组 24 人开始时间: 2010年12月最近更新:
适应症
干预措施
相关药物

试验速览

阶段
1 期
状态
已完成
发起方
Pfizer
入组人数
24
试验地点
1
主要终点
Maximum Observed Blood Concentration at Steady State (Cmax,ss)

研究概览

简要总结

Sirolimus, 1 mg, white, triangular tablets (Rapamune®) was approved on 03 April 2007 in China for prophylaxis of organ rejection in renal transplantation. A pharmacokinetic (PK) study to be conducted in renal allograft recipients was requested by State Food and Drug Administration (SFDA) to provide further guidance for clinical use.

To minimize risk to patients, this study is designed to collect blood PK samples from renal allograft recipients who are currently under sirolimus (1 mg tablets) treatment with or without concomitant medication(s). PK samples will be collected from these patients to characterize the steady state PK of sirolimus during sirolimus maintenance therapy. This study will not involve any changes to the established treatment regimen for the patients who enroll in the study

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
18 Years 至 —(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Male or female, above 18 years of age and Body Mass Index (BMI) of 18.0 to 25.0 kg/m2, inclusive;
  • Subjects must have received a primary or secondary renal allograft for at least 2 months prior to Screening;
  • Subjects must be currently taking Rapamune tablets for prophylaxis of renal rejection. The dosages of any medications must be stable for at least 2 weeks prior to screening and continue with no change until completion of the last PK sample collection.

排除标准

  • Acute rejection or vascular rejection episode in the 4 weeks prior to Screening; or patients dependent on dialysis; or inadequate renal function (in the opinion of the investigator);
  • Recipients of multiple organ transplants (i.e., prior or concurrent transplantation of any organs other than renal transplant);
  • Current use of strong inducers or inhibitors of CYP3A4 within 2 weeks prior to collection of the first PK sample and until collection of the final PK sample;
  • Any clinically significant medical or psychiatric condition or laboratory abnormality, in the judgment of the investigator.

研究组 & 干预措施

sirolimus

Experimental

Subjects must be taking sirolimus (1 mg tablet formulation) with or without concomitant medications, unless specifically excluded below, for prophylaxis of renal rejection.

干预措施: Sirolimus (Drug)

结局指标

主要结局

Maximum Observed Blood Concentration at Steady State (Cmax,ss)

时间窗: Predose (0 hour) and 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12 and 24 hours post dose

Time to Reach Maximum Observed Blood Concentration at Steady State (Tmax,ss)

时间窗: Predose (0 hour) and 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12 and 24 hours post dose

Observed Blood Trough Concentration at Steady State (Ctrough,ss)

时间窗: Predose (0 hour) and 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12 and 24 hours post dose

Average Blood Concentration at Steady State (Cave,ss)

时间窗: Predose (0 hour) and 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12 and 24 hours post dose

Area Under the Curve From Time Zero to End of Dosing Interval (AUCtau) at Steady State

时间窗: Predose (0 hour) and 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12 and 24 hours post dose

Degree of Fluctuation (DF)

时间窗: Predose (0 hour) and 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12 and 24 hours post dose

DF, also known as peak to trough fluctuation (PTF) (calculated as \[Cmax minus Ctrough\] divided by Cave), is a unit-less ratio of the Cmax to Ctrough decrease expressed as a fraction of the average concentration during a dosing interval.

Apparent Oral Clearance (CL/F)

时间窗: Predose (0 hour) and 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 12 and 24 hours post dose

Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. Clearance obtained after oral dose (apparent oral clearance) is influenced by the fraction of the dose absorbed. Clearance was estimated from population pharmacokinetic (PK) modeling. Drug clearance is a quantitative measure of the rate at which a drug substance is removed from the blood. Clearance obtained after oral dose (apparent oral clearance) is influenced by the fraction of the dose absorbed.

次要结局

  • Number of Participants With Serum Creatinine Levels More Than (>) 1.3 Times the Upper Limit of Normal(From baseline up to Day 4)
  • Number of Participants With Estimated Glomerular Filtration Rate (GFR) Less Than (<) 60 mL/Min/1.73 m^2(From baseline up to Day 4)

研究者

发起方
Pfizer
申办方类型
Industry
责任方
Sponsor

研究点 (1)

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