A PHASE 1B MULTICENTER, OPEN-LABEL STUDY TO EVALUATE THE SAFETY AND TOLERABILITY AND DETERMINE THE MAXIMUM TOLERATED DOSE OF PF-05230907 IN SUBJECTS WITH INTRACEREBRAL HEMORRHAGE (ICH)
试验速览
- 阶段
- 1 期
- 状态
- 终止
- 发起方
- Pfizer
- 入组人数
- 21
- 试验地点
- 26
- 主要终点
- Number of Participants With Treatment-Emergent Thromboembolic and/or Ischemic Events (TIEs)
研究概览
简要总结
This study employs a modified continual reassessment method (mCRM) design to estimate the maximum tolerated dose (MTD) of PF-05230907, defined as a target toxicity rate of 15% based on treatment emergent thromboembolic and/or ischemic events (TIEs). The mCRM design utilizes Bayesian methodology to continuously learn the dose-toxicity relationship, which is characterized by a parametric model.
Subjects with a diagnosis of ICH (determined by computed tomography) will be enrolled in cohorts of 3. The total length of time planned for study participation is approximately 3 months; 6.0 hours for screening, a single dose administration with a 4-day minimum hospital confinement period and follow-up visits through Day 91.
Severity of adverse events (AEs) and serious adverse events (SAEs) will be graded according to the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 4.03. All subjects who receive PF-05230907 are evaluable for TIEs. The determination of MTD using mCRM modeling will be based on TIEs which occur through 7 days post-dose (Day 8).
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 79 Years(Adult, Older Adult)
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •ICH as documented by CT scan within 6.0 hours of symptom onset
- •Baseline ICH volume > 5mL and < 60 mL
排除标准
- •Deep coma (Glasgow Coma Scale < 6)
- •Modified Rankin Score > 3 prior to ICH onset
- •Known history of schemic, vaso-occlusive or thrombotic events within 6 months prior to screening
- •Known prothrombotic disorders
- •Known secondary ICH related to aneurysm, arteriovenous malformation, subarachnoid hemorrhage, trauma, or other causes. CT angiography, MR, or other diagnostic studies obtained as part of the standard of care may be used to assess eligibility.
- •Known use of oral anticoagulant(s)
- •Known use of low-molecular weight heparin or heparin
研究组 & 干预措施
PF-05230907 (Cohort 6)
PF-05230907 IV bolus injection
干预措施: PF-05230907 (Biological)
PF-05230907 (Cohort 3)
PF-05230907 IV bolus injection
干预措施: PF-05230907 (Biological)
PF-05230907 (Cohort 1)
PF-05230907 IV bolus injection
干预措施: PF-05230907 (Biological)
PF-05230907 (Cohort 8)
PF-05230907 IV bolus injection
干预措施: PF-05230907 (Biological)
PF-05230907 (Cohort 5)
PF-05230907 IV bolus injection
干预措施: PF-05230907 (Biological)
PF-05230907 (Cohort 4)
PF-05230907 IV bolus injection
干预措施: PF-05230907 (Biological)
PF-05230907 (Cohort 12)
PF-05230907 IV bolus injection
干预措施: PF-05230907 (Biological)
PF-05230907 (Cohort 13)
PF-05230907 IV bolus injection
干预措施: PF-05230907 (Biological)
PF-05230907 (Cohort 11)
PF-05230907 IV bolus injection
干预措施: PF-05230907 (Biological)
PF-05230907 (Cohort 10)
PF-05230907 IV bolus injection
干预措施: PF-05230907 (Biological)
PF-05230907 (Cohort 15)
PF-05230907 IV bolus injection
干预措施: PF-05230907 (Biological)
PF-05230907 (Cohort 9)
PF-05230907 IV bolus injection
干预措施: PF-05230907 (Biological)
PF-05230907 (Cohort 14)
PF-05230907 IV bolus injection
干预措施: PF-05230907 (Biological)
PF-05230907 (Cohort 2)
PF-05230907 IV bolus injection
干预措施: PF-05230907 (Biological)
PF-05230907 (Cohort 7)
PF-05230907 IV bolus injection
干预措施: PF-05230907 (Biological)
结局指标
主要结局
Number of Participants With Treatment-Emergent Thromboembolic and/or Ischemic Events (TIEs)
时间窗: Day 1 through day of discharge (Day 8)
Thromboembolic and/or ischemic events (TIEs) were defined as any of the following events: disseminated intravascular coagulation (Grade \[Gr\]\>=3); acute coronary syndrome (Gr \>=3); cardiac arrest (Gr \>=4); myocardial infarction (Gr \>=3); Cardiac troponin I increased (Gr 3); ischemia cerebrovascular (Gr \>=1 and associated with lesion\[s\]); portal vein thrombosis (Gr \>=2); ischemic stroke (Gr \>=1 and associated with lesion\[s\]); transient ischemic attacks (Gr 2); purpura (Gr \>=2); superior vena cava syndrome (Gr \>=1); thromboembolic event (Gr \>=2); visceral arterial ischemia (Gr \>=2); peripheral arterial ischemia (Gr \>=3). TIEs were graded based on Common Terminology Criteria for Adverse Events (CTCAE) version 4.03. For the respective event to count as a treatment-emergent TIE, onset or worsening of the event must have occurred following treatment with PF-05230907 and during the interval between Day 1 dosing through Day 8.
Number of Participants With Treatment-Emergent Serious Adverse Events (SAEs)
时间窗: Day 1 through follow-up visit (Day 43)
A serious adverse event (SAE) was any untoward medical occurrence at any dose that: resulted in death; or was life threatening (immediate risk of death); or required inpatient hospitalization or prolongation of existing hospitalization; or resulted in persistent or significant disability/incapacity (substantial disruption of the ability to conduct normal life functions); or resulted in congenital anomaly/birth defect. Any such events occurring following the start of treatment or increasing in severity were counted as treatment-emergent.
Number of Participants With Treatment-Emergent Adverse Events (AEs)
时间窗: Day 1 through day of discharge (Day 8)
An adverse event (AE) was any untoward medical occurrence in a participant who received study treatment without regard to possibility of causal relationship. For the respective event to count as a treatment-emergent AE, onset or worsening of the event must have occurred following treatment with PF-05230907 and during the interval between Day 1 dosing through Day 8.
Change From Baseline for Body Temperature
时间窗: Baseline (pre-dose), Day 1 (5 and 45 minutes [min] post-dose), Day 2, Day 3, Day 4, Day 8/discharge
Body temperature was measured by oral, tympanic, axillary or temporal method.
Change From Baseline for Supine Pulse Rate
时间窗: Baseline (pre-dose), Day 1 (5 and 45 minutes [min] post-dose), Day 2, Day 3, Day 4, Day 8/discharge
The use of an automated device for measuring pulse rate was acceptable, although, when done manually, pulse rate was measured in the brachial/radial artery for at least 30 seconds.
Number of Participants With Changes From Baseline in Physical Examination
时间窗: Baseline (pre-dose), Day 2, Day 3, Day 4, Day 8/discharge
Comprehensive and targeted physical examinations included general appearance, HEENT (head, eyes, ears, nose and throat), skin, heart (auscultation), lungs (auscultation), abdomen (palpitation and auscultation), and extremities with attention to swelling, general or localized tenderness, entire leg or calf swelling, edema, and collateral superficial veins. The results of the comprehensive and targeted physical examinations were combined to evaluate the changes from baseline through Day 8 (or discharge) for each site parameter according to the categories: positive change (abnormal to normal); no change (normal to normal or abnormal to abnormal); negative change (normal to abnormal). Parameters with at least 1 participant meeting the positive/negative change from baseline criteria are presented here.
Number of Participants With Treatment-Emergent Laboratory Abnormalities
时间窗: Day 1 through Day 8 (or discharge) for D-dimer laboratory test and urinalysis; Day 1 through Day 4 for all other laboratory tests
Laboratory safety parameters included hematology, blood chemistry, prothrombin time/international normalized ratio (PT/INR), fibrinogen, antithrombin III (ATIII), Protein S level, Protein C activity, cardiac troponin I, D-dimer, and urinalysis. The number of participants with laboratory test abnormalities meeting specified criteria without regard to baseline abnormality was assessed. Any abnormalities occurring after the administration of treatment and increasing in severity from baseline value were counted as treatment-emergent.
Change From Baseline for Supine Respiratory Rate
时间窗: Baseline (pre-dose), Day 1 (5 and 45 minutes [min] post-dose), Day 2, Day 3, Day 4, Day 8/discharge
Respiratory rate was measured after 5 minutes rest in supine position by observing and counting the respirations of the participant for 30 seconds and multiplied by 2. The use of an automated device for measuring respiratory rate was acceptable.
Change From Baseline for Supine Systolic and Diastolic Blood Pressure
时间窗: Baseline (pre-dose), Day 1 (5 and 45 minutes [min] post-dose), Day 2, Day 3, Day 4, Day 8/discharge
Supine blood pressure (BP, systolic and diastolic) was measured with the participant's arm supported at the level of the heart and recorded to the nearest milliliters of mercury (mmHg) after 5 minutes of rest whenever possible and as permitted by the participant's medical condition.
Number of Participants With Electrocardiogram (ECG) Qualitative Results
时间窗: Baseline (pre-dose), Day 2, Day 4, Day 8/discharge
The electrocardiogram (ECG) results over time were compared to baseline and assessed by the investigator as "less abnormal", "no significant change", or "more abnormal".
次要结局
- Number of Participants With Depletion of Coagulation Factor X(Baseline (pre-dose), Day 43, Day 91)
- Number of Participants With Anti-Drug Antibody (ADA) Production(Day 1 up to follow-up visit (Day 43 and/or Day 91))
- Maximum Changes From Baseline for Activated Partial Thromboplastin Time (aPTT)(Baseline (pre-dose), Day 2)
- Maximum Changes From Baseline for Prothrombin Fragment 1+2 (PF1+2)(Baseline (pre-dose), Day 2)
- Number of Participants With Neutralizing Antibody (NAb) Production(Day 1 up to follow-up visit (Day 43 and/or Day 91))
