A Phase 2 Multicenter, Randomized, Double Blind, Placebo Controlled Study Of The Safety And Efficacy Of Pf-03049423 In Subjects With Ischemic Stroke
试验速览
- 阶段
- 2 期
- 状态
- 终止
- 发起方
- Pfizer
- 入组人数
- 181
- 试验地点
- 70
- 主要终点
- Number of Participants With Any Abnormal Laboratory Test Results (Part 1* and 2)
研究概览
简要总结
The purpose of this study is to evaluate the safety and tolerability of PF-03049423 following multiple dose administration to subjects with ischemic stroke. The study will also evaluate the efficacy of PF-03049423, relative to placebo, in subjects with ischemic stroke following 90 days of therapy. The study will also explore the relationship between PF-03049423 concentration and blood pressure.
详细描述
The interim analysis for the POC study A9541004 demonstrated futility, and the study was stopped on the 6th of November 2013. There were no signals of serious safety concern.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 85 Years(Adult, Older Adult)
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Diagnosis of ischemic stroke with an onset within 72 hours prior to start of study agent administration, male or female.
- •Supratentorial ischemic stroke involving the cortex documented by neurological exam and confirmed by MRI.
- •Stroke involving upper extremity.
- •Subjects who received thrombolytic therapy may be enrolled and the use of antiplatelet is acceptable.
排除标准
- •Any other severe acute or chronic medical or psychiatric condition besides the stroke.
- •Women of child bearing potential.
- •Uncontrolled hypertension.
研究组 & 干预措施
1 mg PF-03049423
干预措施: PF-03049423 (Drug)
3 mg of PF-03049423
干预措施: PF-03049423 (Drug)
6 mg of PF-03049423
干预措施: PF-03049423 (Drug)
Placebo
干预措施: Placebo (Other)
结局指标
主要结局
Number of Participants With Any Abnormal Laboratory Test Results (Part 1* and 2)
时间窗: Day 1 (Baseline) up to Day 90
The total number of participants with laboratory test abnormalities (without regard to baseline abnormality) was assessed. \*This endpoint was a primary endpoint for Part 1 (timeframe Days 1 to 14), as data for this timeframe were not reported separately, Part 1 and 2 data were reported together.
Number of Participants With Significant Change in Neurological Examination Findings (Part 1* and 2)
时间窗: Day 1 (Baseline) up to Day 90
The complete neurological examination included an assessment of the motor, sensory, cranial nerves, reflexes, mental status and associated motor functions. The limited neurological exam could examine the same categories of neurologic assessments as the full examination, but would differ by the depth in the examination. The examination was required to be done to the extent needed to assess the participant for any potential changes in neurological status, as determined by the Investigator, but had to always include an assessment of motor, vision and hearing. \*This endpoint was a primary endpoint for Part 1 (timeframe Days 1 to 14), as data for this timeframe were not reported separately, Part 1 and 2 data were reported together.
Number of Participants With Suicidal Behavior and/or Ideation as Assessed by Columbia-Suicide Severity Rating Scale (C-SSRS) (Part 1* and 2)
时间窗: Day 7 (Baseline) up to follow up (28 days after Day 90)
Data were mapped to Columbia-Classification Algorithm of Suicide Assessment (C-CASA) event codes. C-SSRS assessed if participant experienced: completed suicide (Code 1), suicide attempt (Code 2) (Response of "Yes" on "actual attempt"), preparatory acts toward imminent suicidal behavior (Code 3) ("Yes" on "aborted attempt", "interrupted attempt", "preparatory acts or behavior"), suicidal ideation (Code 4) ("Yes" on "wish to be dead", "non-specific active suicidal thoughts", "active suicidal ideation with methods without intent to act/some intent to act without specific plan or with specific plan and intent), self-injurious behavior, no suicidal intent (Code 7) ("Yes" on "Has participant engaged in non-suicidal self-injurious behavior"). Number of participants with "Yes" response for any of above mentioned categories was assessed. \*This was a primary endpoint for Part 1 (timeframe Days 1 to 14), as data for it were not reported separately, Part 1 and 2 data were reported together.
Percentage of Participants With Modified Rankin Scale (mRS) Less Than or Equal to (<=2) at Day 90 (Part 2)
时间窗: Day 90
The mRS is a 6-point scale of functional recovery. The scale grades participants as having no symptoms (0), minor symptoms (1), minor handicap (2), moderate handicap (3), moderately severe handicap (4), severe handicap (5), or death (6).
Number of Participants With Vital Signs Data Met Criteria of Potential Clinical Concern (Part 1* and 2)
时间窗: Day 1 (Baseline) up to follow-up (28 days after Day 90)
Vital signs included blood pressure (BP; supine, sitting and standing) and pulse rate. Vital signs criteria of potential clinical concern were 1), BP: systolic BP (SBP) greater than or equal to (\>=) 30 or 50 millimeters of mercury (mm Hg) change from grand baseline in same posture, systolic less than (\<) 90 mm Hg; diastolic BP (DBP) \>=20 mm Hg change from grand baseline in same posture, diastolic \<50 mm Hg; 2), pulse rate (supine, sitting and standing): \<40 or greater than (\>) 120 beats per minute (bpm); Standing: \<40 or \>140 bpm. \*This endpoint was a primary endpoint for Part 1 (timeframe Days 1 to 14), as data for this timeframe were not reported separately, Part 1 and 2 data were reported together.
Number of Participants With Electrocardiograms (ECGs) Data Met Criteria of Potential Clinical Concern (Part 1* and 2)
时间窗: Day 1 (Baseline) to Day 90
ECG criteria of potential clinical concern were 1), PR interval: \>=300 milliseconds (msec); \>=25% increase when baseline \>200 msec; or increase \>=50% when baseline \<=200 msec; 2), QRS interval: \>=140 msec; \>=50% increase from baseline; 3), QT interval: \>=500 msec, QTc interval using Fridericia's formula (QTcF interval): absolute value \>=450 - \<480 msec, \>=480-\<500 msec, \>=500 msec; absolute change 30 - \<60, \>=60 msec. \*This endpoint was a primary endpoint for Part 1 (timeframe Days 1 to 14), as data for this timeframe were not reported separately, Part 1 and 2 data were reported together.
Number of Participants With Significant Change in Physical Examination Findings (Part 1* and 2)
时间窗: Day 1 (Baseline) up to Day 90
The complete physical examination included examination of the skin, eyes, ears, throat, neck, cardiac, respiratory, gastrointestinal, and musculoskeletal systems. The limited physical examination included examination of the cardiac, respiratory, gastrointestinal, and musculoskeletal systems. \*This endpoint was a primary endpoint for Part 1 (timeframe Days 1 to 14), as data for this timeframe were not reported separately, Part 1 and 2 data were reported together.
次要结局
- Change From Baseline in Box and Blocks (B&B) Test at Day 90 for Paretic to Non-paretic Hand Ratio (Part 2)(Day 1 (Baseline), Day 90)
- BI at Day 90 (Part 2)(Day 90)
- Plasma Concentrations of PF-03049423 (Part 1 and 2)(Days 1, 2, 7, 14, 30, 60 and 90)
- Change From Baseline in Box and Blocks (B&B) Test at Day 90 for Paretic Hand (Part 2)(Day 1 (Baseline), Day 90)
- Percentage of Participants With mRS (0-1) at Day 90 (Part 2)(Day 90)
- Change From Baseline in NIHSS at Day 90 (Part 2)(Day 1 (Baseline), Day 90)
- Domains of Interest: Change From Baseline in Line Cancellation Test [(L+R)/28 × 100%, (L/14) × 100%, (R/14) × 100%)] at Day 90 (Part 2)(Day 1 (Baseline), Day 90)
- Gait Velocity Test at Day 90 (Part 2)(Day 90)
- Percentage of Participants With Barthel Index (BI) >= 95 and BI =100 at Day 90 (Part 2)(Day 90)
- Change From Baseline in Hand Grip Strength Test at Day 90 for Paretic and Non-paretic Hands (Part 2)(Day 1 (Baseline), Day 90)
- Percentage of Participants With National Institutes of Health Stroke Scale (NIHSS) (0-1) at Day 90 (Part 2)(Day 90)
- Domains of Interest: Change From Baseline in RBANS Naming Sub Test at Day 90 (Part 2)(Day 1 (Baseline), Day 90)
- Domains of Interest: Change From Baseline in Line Cancellation Test at Day 90 [(L-R)/(L+R)] (Part 2)(Day 1 (Baseline), Day 90)
- Domains of Interest: Change From Baseline in Recognition Memory Test at Day 90 (Part 2)(Day 1 (Baseline), Day 90)
- Change From Baseline in Hand Grip Strength Test at Day 90 for Paretic to Non-paretic Hand Ratio (Part 2)(Day 1 (Baseline), Day 90)
- Domains of Interest: Change From Baseline in Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) Coding Sub Test at Day 90 (Part 2)(Day 1 (Baseline), Day 90)
- Change From Baseline in Box and Blocks (B&B) Test at Day 90 for Non-paretic Hand (Part 2)(Day 1 (Baseline), Day 90)
