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临床试验/NCT01131013
NCT01131013已完成2 期

A Phase II, Double-Blind, Randomized, Placebo-Controlled, Three-Way Crossover, Pharmacokinetic and Pharmacodynamic Study of CK-2017357 in Patients With Claudication

Cytokinetics14 个研究点 分布在 1 个国家目标入组 61 人开始时间: 2010年5月最近更新:
适应症
干预措施
相关药物

试验速览

阶段
2 期
状态
已完成
发起方
入组人数
61
试验地点
14
主要终点
Effect of single dose of CK-2017357 on number of contractions, time and work to onset of claudication during bilateral heel raises

研究概览

简要总结

The primary objective of this early-stage clinical study is to demonstrate an effect of single doses of CK-2017357 on measures of skeletal muscle function and fatigability in patients with peripheral artery disease and symptomatic claudication.

详细描述

This study is a Phase II, double-blind, randomized, placebo-controlled, three-way crossover design of two single doses of CK-2017357 in patients with peripheral artery disease and symptomatic claudication. 36 to 72 patients will be randomized at approximately 15 study centers to one of six different treatment sequences. Each treatment sequence consists of three dosing periods in which patients receive single oral doses of placebo, 375 mg and 500 mg of CK-2017357. All six treatment sequences will enroll approximately the same number of patients. A wash out period of at least 6 days (to a maximum of 10 days) will be employed between the individual doses for each patient. This study is designed to assess the effects of CK-2017357 on measures of endurance/fatigue, work output, and walking capacity. The PK and PD relationship of CK-2017357 after two single doses will be assessed versus placebo, and the CK-2017357 concentration versus time data obtained in this study may be used to develop a population PK model to estimate intra- and inter-patient variability of PK parameters in patients with claudication.

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
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)

入排标准

年龄范围
40 Years 至 —(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Ability to comprehend and willing to sign an Informed Consent Form (ICF)
  • Ability to understand written and oral English language
  • Peripheral arterial disease defined as an ankle-brachial index (ABI) at rest ≤ 0.90 in at least one leg in which the patient experiences claudication
  • Stable claudication symptoms over past 6 months (Fontaine Stage II) in at least one calf muscle due to documented peripheral artery disease
  • Females (of non-childbearing potential) or males who are 40 years of age or older
  • Body mass index (BMI) of 18.0 to 30.0 kg/m2, inclusive
  • Ability to perform the bilateral heel raise familiarization sufficient to induce typical claudication at a contraction frequency of once every other second
  • Ability to complete a six-minute walking test
  • Pre-study clinical laboratory findings (including troponin I [TnI] and creatine phosphokinase [CPK]) within the normal range, or if outside of the normal range, deemed not clinically significant by the Investigator and Sponsor's Medical Monitor
  • For female patients only: Non-childbearing potential (e.g., documented post-menopausal ≥ 1 year, sterilized, status-post hysterectomy) For male patients only: Agreement either
  • To use a condom during sexual intercourse with female partners who are of reproductive potential and to have female partners use an additional effective means of contraception (e.g., diaphragm plus spermicide, or oral contraceptives) for the duration of the study and 10 weeks after the end of the study or
  • To abstain from sexual intercourse for the duration of the study and 10 weeks after the end of the study

排除标准

  • Asymptomatic peripheral artery disease classified as Fontaine Stage I
  • Critical leg ischemia classified as Fontaine Stage III-IV (rest pain, tissue necrosis or gangrene)
  • Non-atherosclerotic causes of arterial occlusive disease
  • "Atypical leg pain," defined as significant residual leg discomfort at rest
  • Leg, hip, or knee surgery within 6 months prior to randomization
  • Any revascularization procedure (coronary or peripheral) within 3 months prior to randomization
  • Life-threatening ventricular arrhythmias, unstable angina, stroke, and/or myocardial infarction within 3 months prior to randomization
  • Moderate/severe symptomatic heart failure defined as NYHA Class III or IV; in patients with NYHA Class I or II heart failure, the screening heel raise familiarization must elicit claudication symptoms and not cardiac symptoms
  • Severe COPD or other respiratory impairment defined as receiving supplemental oxygen therapy at home or by clinical assessment of the Investigator
  • Poorly controlled hypertension (defined as supine resting BP >180 mmHg systolic or > 100 mmHg diastolic, or both)
  • Hypotension (defined as supine resting BP < 95 mmHg systolic or < 55 mmHg diastolic, or both, or symptomatic hypotension [standing, supine, or orthostatic])
  • Exercise tolerance (including ability to perform heel raise and six-minute walk test) that, in the opinion of the Investigator, is significantly limited by other co-morbid conditions or diseases other than claudication
  • Type 1 diabetes (juvenile onset, insulin-dependent), or poorly controlled Type 2 diabetes (defined as HbA1c > 9.0% in the past 3 months)
  • Hepatic insufficiency (defined as ALT or AST > 3x ULN, or total bilirubin > 3 mg/dL)
  • Renal insufficiency (defined as serum creatinine > 2.5 mg/dL or receiving dialysis)
  • Anemia (defined as hemoglobin < 12.0 g/dL)
  • Participation in any other investigational study drug or device trial in which receipt of an investigational study drug or device occurred within 30 days prior to dosing
  • Previous treatment with gene therapy or other vascular endothelial growth factor (VEGF)-related therapy
  • Any prior treatment with CK-2017357
  • Recent history of alcoholism or drug abuse, or significant behavioral or psychiatric problems, or other conditions which in the Investigator's opinion may impair ability to adequately comply with the requirements of the study

研究组 & 干预措施

Treatment Sequence 1

Experimental

Dosing Period 1 - Placebo; Dosing Period 2 - 375 mg CK-2017357; Dosing Period 3 - 500 mg CK-2017357

干预措施: Placebo (Drug)

Treatment Sequence 1

Experimental

Dosing Period 1 - Placebo; Dosing Period 2 - 375 mg CK-2017357; Dosing Period 3 - 500 mg CK-2017357

干预措施: 375 mg CK-2017357 (Drug)

Treatment Sequence 1

Experimental

Dosing Period 1 - Placebo; Dosing Period 2 - 375 mg CK-2017357; Dosing Period 3 - 500 mg CK-2017357

干预措施: 500 mg CK-2017357 (Drug)

Treatment Sequence 2

Experimental

Dosing Period 1 - Placebo; Dosing Period 2 - 500 mg CK-2017357; Dosing Period 3 - 375 mg CK-2017357

干预措施: Placebo (Drug)

Treatment Sequence 2

Experimental

Dosing Period 1 - Placebo; Dosing Period 2 - 500 mg CK-2017357; Dosing Period 3 - 375 mg CK-2017357

干预措施: 375 mg CK-2017357 (Drug)

Treatment Sequence 2

Experimental

Dosing Period 1 - Placebo; Dosing Period 2 - 500 mg CK-2017357; Dosing Period 3 - 375 mg CK-2017357

干预措施: 500 mg CK-2017357 (Drug)

Treatment Sequence 3

Experimental

Dosing Period 1 - 375 mg CK-2017357; Dosing Period 2 - Placebo; Dosing Period 3 - 500 mg CK-2017357

干预措施: Placebo (Drug)

Treatment Sequence 3

Experimental

Dosing Period 1 - 375 mg CK-2017357; Dosing Period 2 - Placebo; Dosing Period 3 - 500 mg CK-2017357

干预措施: 375 mg CK-2017357 (Drug)

Treatment Sequence 3

Experimental

Dosing Period 1 - 375 mg CK-2017357; Dosing Period 2 - Placebo; Dosing Period 3 - 500 mg CK-2017357

干预措施: 500 mg CK-2017357 (Drug)

Treatment Sequence 4

Experimental

Dosing Period 1 - 375 mg CK-2017357; Dosing Period 2 - 500 mg CK-2017357; Dosing Period 3 - Placebo

干预措施: Placebo (Drug)

Treatment Sequence 4

Experimental

Dosing Period 1 - 375 mg CK-2017357; Dosing Period 2 - 500 mg CK-2017357; Dosing Period 3 - Placebo

干预措施: 375 mg CK-2017357 (Drug)

Treatment Sequence 4

Experimental

Dosing Period 1 - 375 mg CK-2017357; Dosing Period 2 - 500 mg CK-2017357; Dosing Period 3 - Placebo

干预措施: 500 mg CK-2017357 (Drug)

Treatment Sequence 5

Experimental

Dosing Period 1 - 500 mg CK-2017357; Dosing Period 2 - Placebo; Dosing Period 3 - 375 mg CK-2017357

干预措施: Placebo (Drug)

Treatment Sequence 5

Experimental

Dosing Period 1 - 500 mg CK-2017357; Dosing Period 2 - Placebo; Dosing Period 3 - 375 mg CK-2017357

干预措施: 375 mg CK-2017357 (Drug)

Treatment Sequence 5

Experimental

Dosing Period 1 - 500 mg CK-2017357; Dosing Period 2 - Placebo; Dosing Period 3 - 375 mg CK-2017357

干预措施: 500 mg CK-2017357 (Drug)

Treatment Sequence 6

Experimental

Dosing Period 1 - 500 mg CK-2017357; Dosing Period 2 - 375 mg CK-2017357; Dosing Period 3 - Placebo

干预措施: Placebo (Drug)

Treatment Sequence 6

Experimental

Dosing Period 1 - 500 mg CK-2017357; Dosing Period 2 - 375 mg CK-2017357; Dosing Period 3 - Placebo

干预措施: 375 mg CK-2017357 (Drug)

Treatment Sequence 6

Experimental

Dosing Period 1 - 500 mg CK-2017357; Dosing Period 2 - 375 mg CK-2017357; Dosing Period 3 - Placebo

干预措施: 500 mg CK-2017357 (Drug)

结局指标

主要结局

Effect of single dose of CK-2017357 on number of contractions, time and work to onset of claudication during bilateral heel raises

时间窗: 1 day

Heel raises will be monitored by an electrogoniometer placed on the index leg and performed once every other second until onset of claudication pain or fatigue as determined by electrogoniometry

Effect of single dose of CK-2017357 on number of contractions, time and work to intolerable claudication pain or maximal calf muscle fatigue

时间窗: 1 day

Heel raises will be monitored by an electrogoniometer placed on the index leg and performed once every other second until limited by intolerable claudication pain or fatigue as determined by electrogoniometry

Effect of single dose of CK-2017357 on Six-Minute Walk Test

时间窗: 1 day

Patient's self-paced walking distance over 6 minutes

次要结局

  • Characterize the relationship, if any, between the plasma concentrations of CK-2017357 and number of contractions, time and work to onset of claudication during bilateral heel raises(1 day)
  • Characterize the relationship, if any, between the plasma concentrations of CK-2017357 and number of contractions, time and work to intolerable claudication pain or maximal calf muscle fatigue during bilateral heel raises(1 day)
  • Characterize the relationship, if any, between the plasma concentrations of CK-2017357 and Six-Minute Walk Test(1 day)
  • Number of patients with adverse events(4 weeks)

研究者

发起方
Cytokinetics
申办方类型
Industry
责任方
Sponsor

研究点 (14)

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