Randomized, Blinded, Multicenter, Phase 2 Study Comparing Veliparib Plus FOLFIRI ± Bevacizumab Versus Placebo Plus FOLFIRI ± Bevacizumab in Previously Untreated Metastatic Colorectal Cancer
试验速览
- 阶段
- 2 期
- 状态
- 已完成
- 发起方
- 入组人数
- 130
- 主要终点
- Progression-Free Survival (PFS): Time to Event
研究概览
简要总结
This was a blinded, randomized, placebo-controlled Phase 2 multicenter study evaluating the efficacy and tolerability of veliparib plus irinotecan, fluorouracil, and leucovorin chemotherapy regimen (FOLFIRI) compared to placebo plus FOLFIRI in participants with previously untreated metastatic colorectal cancer. Participants could also have been treated with bevacizumab at the discretion of the Investigator.
详细描述
Participants were randomized to one of 2 groups: veliparib plus FOLFIRI ± bevacizumab (veliparib group) or placebo plus FOLFIRI ± bevacizumab (placebo group), and stratified by planned use of bevacizumab (planned bevacizumab use compared to unplanned use of bevacizumab) and regions of the world (North America versus rest of world). In this study, the term FOLFIRI was used to describe both the standard regimen containing a fluorouracil bolus that was administered to participants randomized to the placebo arm, and a modified regimen with a saline bolus that was administered to participants randomized to the veliparib arm. One cycle of protocol therapy consisted of 14 days, defined as Day -2 through Day 12. Dosing of oral veliparib/placebo began 2 days prior to the start of FOLFIRI and continued twice a day for a total of 7 consecutive days. At the discretion of the Investigator, bevacizumab could be administered intravenously immediately preceding FOLFIRI. Study visits were conducted on Day 1 and Day 8 of the first and second cycles, then on Day 1 of each subsequent cycle. Participants were to continue protocol therapy and study visits until they met one of the defined discontinuation criteria. When the Investigator determined that a participant met the criteria for discontinuation, a final visit was conducted. Participants were to have had one follow-up visit approximately 30 days after the last dose of protocol therapy. Sites began collecting post-treatment and survival information 4 weeks after the last clinical assessment. Post-baseline radiographic tumor assessment was to be conducted every 8 weeks from Cycle 1, Day 1 (prior to the start of a new cycle) until radiographic progression.
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
- Double (Participant, Investigator)
入排标准
- 年龄范围
- 18 Years 至 99 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Histologically or cytologically confirmed metastatic adenocarcinoma of the colon or rectum
- •At least 1 unresectable lesion on a CT (Computerized Tomography) scan that is measurable as defined by Response Evaluation Criteria in Solid Tumors (RECIST), Version 1.1
- •ECOG (Eastern Cooperative Oncology Group) performance score of 0 or 1
- •Adequate hematologic, renal and hepatic function
排除标准
- •Prior anti-cancer treatment for metastatic colorectal cancer
- •Prior exposure to PARP (poly ADP-ribose polymerase) inhibitors
- •The last course of adjuvant or neoadjuvant chemotherapy must have ended > 12 months prior to Cycle 1 Day -2
- •Any clinically significant and uncontrolled major medical condition
- •Participant is pregnant or lactating
- •Any medical condition, which in the opinion of the study Investigator, places the participant at an unacceptably high risk for toxicities
- •For those receiving bevacizumab, standard medical exclusionary conditions apply
研究组 & 干预措施
Veliparib + modified FOLFIRI ± bevacizumab
Dosing of oral veliparib (200 mg) began 2 days prior to the start of FOLFIRI and continued twice a day (BID) for a total of 7 consecutive days. At the discretion of the Investigator, bevacizumab (5 mg/kg) could be administered intravenously (IV) immediately preceding FOLFIRI. Modified FOLFIRI was administered as irinotecan 180 mg/m^2 (90-minute infusion ± 30 minutes); leucovorin 400 mg/m^2 (90-minute infusion ± 30 minutes); and saline bolus (up to 15-minute infusion) immediately followed by fluorouracil 2400 mg/m^2 (46-hour continuous infusion ± 4 hours) starting on Day 1 of each 14-day cycle.
干预措施: Veliparib (Drug)
Veliparib + modified FOLFIRI ± bevacizumab
Dosing of oral veliparib (200 mg) began 2 days prior to the start of FOLFIRI and continued twice a day (BID) for a total of 7 consecutive days. At the discretion of the Investigator, bevacizumab (5 mg/kg) could be administered intravenously (IV) immediately preceding FOLFIRI. Modified FOLFIRI was administered as irinotecan 180 mg/m^2 (90-minute infusion ± 30 minutes); leucovorin 400 mg/m^2 (90-minute infusion ± 30 minutes); and saline bolus (up to 15-minute infusion) immediately followed by fluorouracil 2400 mg/m^2 (46-hour continuous infusion ± 4 hours) starting on Day 1 of each 14-day cycle.
干预措施: Modified FOLFIRI (Drug)
Veliparib + modified FOLFIRI ± bevacizumab
Dosing of oral veliparib (200 mg) began 2 days prior to the start of FOLFIRI and continued twice a day (BID) for a total of 7 consecutive days. At the discretion of the Investigator, bevacizumab (5 mg/kg) could be administered intravenously (IV) immediately preceding FOLFIRI. Modified FOLFIRI was administered as irinotecan 180 mg/m^2 (90-minute infusion ± 30 minutes); leucovorin 400 mg/m^2 (90-minute infusion ± 30 minutes); and saline bolus (up to 15-minute infusion) immediately followed by fluorouracil 2400 mg/m^2 (46-hour continuous infusion ± 4 hours) starting on Day 1 of each 14-day cycle.
干预措施: Bevacizumab (Drug)
Veliparib + modified FOLFIRI ± bevacizumab
Dosing of oral veliparib (200 mg) began 2 days prior to the start of FOLFIRI and continued twice a day (BID) for a total of 7 consecutive days. At the discretion of the Investigator, bevacizumab (5 mg/kg) could be administered intravenously (IV) immediately preceding FOLFIRI. Modified FOLFIRI was administered as irinotecan 180 mg/m^2 (90-minute infusion ± 30 minutes); leucovorin 400 mg/m^2 (90-minute infusion ± 30 minutes); and saline bolus (up to 15-minute infusion) immediately followed by fluorouracil 2400 mg/m^2 (46-hour continuous infusion ± 4 hours) starting on Day 1 of each 14-day cycle.
干预措施: Fluorouracil infusion (Drug)
Placebo + FOLFIRI ± bevacizumab
Dosing of oral placebo (200 mg) began 2 days prior to the start of FOLFIRI and continued twice a day (BID) for a total of 7 consecutive days. At the discretion of the Investigator, bevacizumab (5 mg/kg) could be administered intravenously (IV) immediately preceding FOLFIRI. Standard FOLFIRI was administered as irinotecan 180 mg/m^2 (90-minute infusion ± 30 minutes); leucovorin 400 mg/m^2 (90-minute infusion ± 30 minutes); and fluorouracil bolus 400 mg/m^2 (up to 15-minute infusion) immediately followed by fluorouracil 2400 mg/m^2 (46-hour continuous infusion ± 4 hours) on Day 1 of each 14-day cycle.
干预措施: Placebo (Drug)
Placebo + FOLFIRI ± bevacizumab
Dosing of oral placebo (200 mg) began 2 days prior to the start of FOLFIRI and continued twice a day (BID) for a total of 7 consecutive days. At the discretion of the Investigator, bevacizumab (5 mg/kg) could be administered intravenously (IV) immediately preceding FOLFIRI. Standard FOLFIRI was administered as irinotecan 180 mg/m^2 (90-minute infusion ± 30 minutes); leucovorin 400 mg/m^2 (90-minute infusion ± 30 minutes); and fluorouracil bolus 400 mg/m^2 (up to 15-minute infusion) immediately followed by fluorouracil 2400 mg/m^2 (46-hour continuous infusion ± 4 hours) on Day 1 of each 14-day cycle.
干预措施: FOLFIRI (Drug)
Placebo + FOLFIRI ± bevacizumab
Dosing of oral placebo (200 mg) began 2 days prior to the start of FOLFIRI and continued twice a day (BID) for a total of 7 consecutive days. At the discretion of the Investigator, bevacizumab (5 mg/kg) could be administered intravenously (IV) immediately preceding FOLFIRI. Standard FOLFIRI was administered as irinotecan 180 mg/m^2 (90-minute infusion ± 30 minutes); leucovorin 400 mg/m^2 (90-minute infusion ± 30 minutes); and fluorouracil bolus 400 mg/m^2 (up to 15-minute infusion) immediately followed by fluorouracil 2400 mg/m^2 (46-hour continuous infusion ± 4 hours) on Day 1 of each 14-day cycle.
干预措施: Bevacizumab (Drug)
Placebo + FOLFIRI ± bevacizumab
Dosing of oral placebo (200 mg) began 2 days prior to the start of FOLFIRI and continued twice a day (BID) for a total of 7 consecutive days. At the discretion of the Investigator, bevacizumab (5 mg/kg) could be administered intravenously (IV) immediately preceding FOLFIRI. Standard FOLFIRI was administered as irinotecan 180 mg/m^2 (90-minute infusion ± 30 minutes); leucovorin 400 mg/m^2 (90-minute infusion ± 30 minutes); and fluorouracil bolus 400 mg/m^2 (up to 15-minute infusion) immediately followed by fluorouracil 2400 mg/m^2 (46-hour continuous infusion ± 4 hours) on Day 1 of each 14-day cycle.
干预措施: Fluorouracil infusion (Drug)
结局指标
主要结局
Progression-Free Survival (PFS): Time to Event
时间窗: Every 8 weeks from Cycle 1, Day 1 until radiographic progression was observed. The maximum observed follow up duration at the progression-free survival analysis time was 579 days.
PFS was defined as the number of days from the date the participant was randomized to the date the participant experienced an event of disease progression or death, whichever occurred first. All events of disease progression were included, whether the participant was still taking or had discontinued study drug. Events of death were included for participants who had not experienced an event of disease progression, if the death occurred within 8 weeks of the last evaluable disease progression assessment. If the participant did not have an event of disease progression and the participant had not died as defined above, data were censored at the date of the participant's last evaluable disease progression assessment. The PFS distribution was estimated using Kaplan-Meier methodology. Point estimates and 95% confidence intervals (95% CIs) for the PFS distribution quartiles are provided.
次要结局
- Objective Response Rate (ORR)(Per protocol, post-baseline tumor assessment was conducted every 8 weeks from Cycle 1 Day 1 until radiographic progression. The maximum observed follow up duration at the progression-free survival analysis time was 579 days.)
- Overall Survival (OS): Time to Event(Survival information was to be collected 4 wks after the last study visit, continuing every 4 wks for 1 yr, then every 8 wks for up to 2 more yrs or until death. The maximum observed follow up duration at the overall survival analysis time was 914 days.)