A PHASE 2B RANDOMIZED, DOUBLE-BLIND, PLACEBO-CONTROLLED, MULTICENTER, DOSE-RANGING STUDY TO EVALUATE THE EFFICACY AND SAFETY PROFILE OF PF-06651600 WITH A PARTIALLY BLINDED EXTENSION PERIOD TO EVALUATE THE EFFICACY AND SAFETY OF PF-06651600 AND PF-06700841 IN SUBJECTS WITH ACTIVE NON-SEGMENTAL VITILIGO
试验速览
- 阶段
- 2 期
- 状态
- 已完成
- 发起方
- Pfizer
- 入组人数
- 366
- 试验地点
- 90
- 主要终点
- Number of Participants With Clinically Meaningful Changes From Baseline in Lipid Profile up to Week 24 - DR Period
研究概览
简要总结
This is a Phase 2b, randomized, double blind, parallel group, multicenter study with an extension period. The study will have a maximum duration of approximately 60 weeks. This includes an up to 4 weeks Screening Period, a 24 week dose ranging period, an up to 24 week extension period and a 8 week Follow up Period.
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
- Triple (Participant, Investigator, Outcomes Assessor)
盲法说明
Dose ranging period is blinded. The partially blinded extension period includes open arms and blinded arms.
入排标准
- 年龄范围
- 18 Years 至 65 Years(Adult, Older Adult)
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Male or female subjects between 18-65 years of age, inclusive, at time of informed consent.
- •Must have moderate to severe active non-segmental vitiligo.
排除标准
- •History of human immunodeficiency virus (HIV) or positive HIV serology at screening,
- •Infected with hepatitis B or hepatitis C viruses.
- •Have evidence of active or latent or inadequately treated infection with Mycobacterium tuberculosis (TB)
研究组 & 干预措施
Cohort 1
Induction dose 1 given once a day(QD) for 4 weeks followed by maintenance dose A given QD for 20 weeks
干预措施: PF-06651600 (Drug)
Cohort 2
Induction dose 2 given QD for 4 weeks followed by maintenance dose A given QD for 20 weeks
干预措施: PF-06651600 (Drug)
Cohort 3
Maintenance dose A given QD for 24 weeks
干预措施: PF-06651600 (Drug)
Cohort 4
Maintenance dose B given QD for 24 weeks
干预措施: PF-06651600 (Drug)
Cohort 5
Maintenance dose C given QD for 24 weeks
干预措施: PF-06651600 (Drug)
Cohort 6
Placebo given QD for 24 weeks
干预措施: placebo (Drug)
Extension Cohort 1
4 week drug holiday (no drug given) followed by PF-06700841 oral tablet QD for 20 weeks
干预措施: PF06700841 (Drug)
Extension Cohort 2
Induction dose 1 given QD for 4 weeks followed by maintenance dose A given QD for 20 weeks in conjunction with narrow band UVB phototherapy
干预措施: PF-06651600 (Drug)
Extension Cohort 2
Induction dose 1 given QD for 4 weeks followed by maintenance dose A given QD for 20 weeks in conjunction with narrow band UVB phototherapy
干预措施: narrow-band UVB phototherapy (Device)
Extension Cohort 3
Induction dose 1 given QD for 4 weeks followed by maintenance dose A given QD for 20 weeks
干预措施: PF-06651600 (Drug)
Extension Cohort 4
Maintenance dose A given QD for 24 weeks
干预措施: PF-06651600 (Drug)
Extension Cohort 5
Maintenance dose B given QD for 24 weeks
干预措施: PF-06651600 (Drug)
结局指标
主要结局
Number of Participants With Clinically Meaningful Changes From Baseline in Lipid Profile up to Week 24 - DR Period
时间窗: Baseline up to Week 24
Participants had to abstain from all food and drink (except water and non-investigational products) for an 8-hour overnight fast prior to fasting lipid profile panel collection. Fasting lipid assessment included total cholesterol, low-density lipoprotein (LDL) cholesterol, high-density lipoprotein (HDL) cholesterol, and triglycerides. The clinical meaningfulness was determined by the investigator. Baseline was defined as the last measurement prior to first dosing (Day 1).
Number of Participants With Liver Function Test Values Meeting the Protocol-Specified Discontinuation Criteria - DR Period
时间窗: 24 weeks
Liver function tests included tests of alanine aminotransferase (ALT), aspartate aminotransferase (AST) and total bilirubin.
Number of Participants With TEAEs and SAEs - Extension (Ext) Period
时间窗: 24 weeks
AE was defined as any untoward medical occurrence in a study participant administered a product or medical device; the event did not necessarily need to have a causal relationship with the treatment or usage. An AE was considered a TEAE if the event started during the effective duration of treatment. All events that started on or after the first dosing day and time/start time, if collected, but before the last dose plus the lag time were flagged as TEAEs. SAE was defined as any untoward medical occurrence at any dose that resulted in death; was life threatening (immediate risk of death); requires inpatient hospitalization or prolongation of existing hospitalization; resulted in persistent or significant disability/incapacity (substantial disruption of the ability to conduct normal life functions); resulted in congenital anomaly/birth defect; or that was considered to be an important medical event. Causality to study treatment was determined by the investigator.
Percent Change From Baseline in Central Read Facial-Vitiligo Area Scoring Index (F-VASI) at Week 24 - Dose Ranging (DR) Period
时间窗: Baseline, Week 24 (Baseline was defined as the last measurement prior to Study Day 18)
Central read F-VASI was assessed based on the facial photographs taken at the site. Central read F-VASI was calculated using a formula that included contribution of affected facial surface areas showing all 6 different depigmentation rates (0.1, 0.25, 0.5, 0.75, 0.9 and 1) with a modified method: F-VASI (central read)=Ʃ \[Affected Facial Surface Area\] × 4 × \[Depigmentation Rates\]. Face was defined as the area from the hairline on top of the forehead to the jawline at the bottom of the cheeks. F-VASI (central read) ranged from 0.000 to 4.000 by defining the affected Facial Surface Area (expressed as the value between 0.0 to 1.0) being 4% of total Body Surface Area. The higher score of F-VASI signified severer symptoms of non-segmental vitiligo. Percent change from baseline in central read F-VASI = ((post-baseline central read F-VASI - baseline central read F-VASI)/baseline central read F-VASI)×100. A negative percent change from baseline in central read F-VASI signified an improvement.
Number of Participants With the TEAEs of Anaemia, Neutropenia, Thrombocytopenia and Lymphopenia - Ext Period
时间窗: 24 weeks
An AE was any untoward medical occurrence in a study participant administered a product or medical device; the event did not necessarily need to have a causal relationship with the treatment or usage. The abnormal test findings, clinically significant signs and symptoms of anaemia, neutropenia, thrombocytopenia and lymphopenia were reported as AEs. The clinical significance was determined by the investigator. An AE was considered a TEAE if the event started during the effective duration of treatment. All events that started on or after the first dosing day and time/start time, if collected, but before the last dose plus the lag time were flagged as TEAEs.
Number of Participants With Clinically Meaningful Changes From Baseline in Lipid Profile - Ext Period
时间窗: 24 Weeks
Participants had to abstain from all food and drink (except water and non-investigational products) for an 8-hour overnight fast prior to fasting lipid profile panel collection. Fasting lipid assessment included total cholesterol, LDL cholesterol, HDL cholesterol, and triglycerides. The clinical meaningfulness was determined by the investigator.
Number of Participants With Liver Function Test Values Meeting the Protocol-Specified Discontinuation Criteria - Ext Period
时间窗: 24 weeks
Liver function tests included tests of alanine aminotransferase (ALT), aspartate aminotransferase (AST) and total bilirubin.
Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs) up to Week 24 - DR Period
时间窗: 24 weeks
Adverse Event (AE) was defined as any untoward medical occurrence in a study participant administered a product or medical device; the event did not necessarily need to have a causal relationship with the treatment or usage. An AE was considered a TEAE if the event started during the effective duration of treatment. All events that started on or after the first dosing day and time/start time, if collected, but before the last dose plus the lag time were flagged as TEAEs. SAE was defined as any untoward medical occurrence at any dose that resulted in death; was life threatening (immediate risk of death); required inpatient hospitalization or prolongation of existing hospitalization; resulted in persistent or significant disability/incapacity (substantial disruption of the ability to conduct normal life functions); resulted in congenital anomaly/birth defect; or that was considered to be an important medical event. Causality to study treatment was determined by the investigator.
Number of Participants With the TEAEs of Anaemia, Neutropenia, Thrombocytopenia and Lymphopenia - DR Period
时间窗: Baseline up to Week 24
An AE was any untoward medical occurrence in a study participant administered a product or medical device; the event did not necessarily need to have a causal relationship with the treatment or usage. The abnormal test findings, clinically significant signs and symptoms of anaemia, neutropenia, thrombocytopenia and lymphopenia were reported as AEs. The clinical significance was determined by the investigator. An AE was considered a TEAE if the event started during the effective duration of treatment. All events that started on or after the first dosing day and time/start time, if collected, but before the last dose plus the lag time were flagged as TEAEs. Baseline was defined as the last measurement prior to first dosing (Day 1).
次要结局
- Percent Change From Baseline in T-VASI at Designated Time Points - DR Period(Baseline, Weeks 4, 8, 12, 16, 20 and 24)
- Percent Change From Baseline in Central Read F-VASI at Designated Time Points - DR Period(Baseline, Weeks 4, 8, 16 and 24)
- Percent Change From Baseline in Local F-VASI at Designated Time Points - DR Period(Baseline, Weeks 4, 8, 12, 16, 20 and 24)
- Percentage of Participants Achieving Central F-VASI75 at Week 24 - DR Period(Week 24)
- Percentage of Participants Achieving T-VASI50 at Week 24 - DR Period(Week 24)
- Percent Change From Baseline in SA-VES at Designated Time Points - DR Period(Baseline, Weeks 4, 16 and 24)
- Absolute Change From Baseline in T-VASI at Designated Time Points - DR Period(Baseline, Weeks 4, 8, 12, 16, 20 and 24)
- Percentage of Participants Achieving T-VASI50 at Designated Time Points - DR Period(Baseline, Weeks 4, 8, 12, 16, 20 and 24)
- Percentage of Participants Achieving T-VASI75 at Designated Time Points - DR Period(Baseline, Weeks 4, 8, 12, 16, 20 and 24)
- Percentage of Participants Achieving T-VASI90 at Designated Time Points - DR Period(Baseline, Weeks 4, 8, 12, 16, 20 and 24)
- Percentage of Participants Achieving T-VASI100 at Designated Time Points - DR Period(Baseline, Weeks 4, 8, 12, 16, 20 and 24)
- Percentage of Participants Achieving sIGA 0 or 1 and at Least a 2-Point Improvement at Week 24 - DR Period(Week 24)
- Percentage of Participants Achieving Central Read F-VASI50 at Designated Time Points - DR Period(Baseline, Weeks 4, 8, 16 and 24)
- Percentage of Participants Achieving Central Read F-VASI75 at Designated Time Points - DR Period(Baseline, Weeks 4, 8, 16 and 24)
- Percentage of Participants Achieving Central Read F-VASI90 at Designated Time Points - DR Period(Baseline, Weeks 4, 8, 16 and 24)
- Percentage of Participants Achieving Central Read F-VASI100 at Designated Time Points - DR Period(Baseline, Weeks 4, 8, 16 and 24)
- Percentage of Participants Achieving Local F-VASI50 at Designated Time Points - DR Period(Baseline, Weeks 4, 8, 12, 16, 20 and 24)
- Percentage of Participants Achieving Local F-VASI75 at Designated Time Points - DR Period(Baseline, Weeks 4, 8, 12, 16, 20 and 24)
- Percentage of Participants Achieving Local F-VASI90 at Designated Time Points - DR Period(Baseline, Weeks 4, 8, 12, 16, 20 and 24)
- Percentage of Participants Achieving Local F-VASI100 at Designated Time Points - DR Period(Baseline, Weeks 4, 8, 12, 16, 20 and 24)
- Change From Baseline in Total VitiQoL Score at Designated Time Points - DR Period(Baseline, Weeks 4, 16 and 24)
- Change From Baseline in VitiQoL Participation Limitation Domain Score at Designated Time Points - DR Period(Baseline, Weeks 4, 16 and 24)
- Change From Baseline in VitiQoL Stigma Domain Score at Designated Time Points - DR Period(Baseline, Weeks 4, 16 and 24)
- Change From Baseline in VitiQoL Behaviors Domain Score at Designated Time Points - DR Period(Baseline, Weeks 4, 16 and 24)
