A Phase III, Multicenter, Randomized, Double-Blind, Placebo-Controlled Study Evaluating the Efficacy and Safety of Inavolisib Plus a CDK4/6 Inhibitor and Letrozole Versus Placebo Plus a CDK4/6 Inhibitor and Letrozole in Patients With Endocrine-Sensitive PIK3CA-Mutated, Hormone Receptor-Positive, HER2-Negative Advanced Breast Cancer
试验速览
- 阶段
- 3 期
- 状态
- 招募中
- 入组人数
- 450
- 试验地点
- 402
- 主要终点
- Progression-Free Survival (PFS)
研究概览
简要总结
This study will evaluate the efficacy and safety of the combination of inavolisib plus a cyclin-dependent kinase 4 and 6 inhibitor (CDK4/6i) and letrozole versus placebo plus a CDK4/6i and letrozole in the first-line setting in participants with endocrine-sensitive PIK3CA-mutated hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2-), advanced breast cancer (ABC).
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 —(Adult, Older Adult)
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Women or men with histologically or cytologically confirmed carcinoma of the breast
- •Documented ER-positive and/or progesterone receptor-positive tumor according to American Society of Clinical Oncology/College of American Pathologists (ASCO/CAP) guidelines
- •Documented HER2-negative tumor according to ASCO/CAP guidelines
- •De-novo HR+ , HER2- ABC, or, alternatively, relapsed HR+ , HER2- ABC after at least 2 years of standard neoadjuvant/adjuvant endocrine therapy without disease progression during that treatment and disease-free interval of at least 1 year since the completion of that treatment
- •Participants who have bilateral breast cancers which are both HR-positive and HER2-negative
- •Confirmation of biomarker eligibility
- •Consent to provide fresh or archival tumor tissue specimen
- •Measurable disease per Response Evaluation Criteria in Solid Tumors, Version 1.1 (RECIST v1.1)
- •Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1
- •Adequate hematologic and organ function within 14 days prior to initiation of study treatment
排除标准
- •Pregnant or breastfeeding, or intention of becoming pregnant during the study or within the time frame in which contraception is required
- •Metaplastic breast cancer
- •Any prior systemic therapy for locally advanced unresectable or metastatic breast cancer
- •Type 2 diabetes requiring ongoing systemic treatment at the time of study entry; or any history of Type 1 diabetes
- •Any history of leptomeningeal disease or carcinomatous meningitis
- •Known and untreated, or active CNS metastases. Participants with a history of treated CNS metastases are eligible
- •Active inflammatory or infectious conditions in either eye or history of idiopathic or autoimmune-associated uveitis in either eye
- •Symptomatic active lung disease
- •History of or active inflammatory bowel disease
- •Any active bowel inflammation
- •Prior hematopoietic stem cell or bone marrow transplantation
- •Treatment with strong cytochrome P450 (CYP) 3A4 inhibitors or strong CYP3A4 inducers within 4 weeks or 5 drug-elimination half-lives, prior to initiation of study treatment
研究组 & 干预措施
Placebo + Letrozole + CDK4/6i
Participants will receive placebo, letrozole and CDK4/6i.
干预措施: Letrozole (Drug)
Placebo + Letrozole + CDK4/6i
Participants will receive placebo, letrozole and CDK4/6i.
干预措施: Placebo (Drug)
Placebo + Letrozole + CDK4/6i
Participants will receive placebo, letrozole and CDK4/6i.
干预措施: CDK4/6i (Drug)
Inavolisib + Letrozole + CDK4/6i
Participants will receive inavolisib, letrozole and CDK4/6i.
干预措施: Letrozole (Drug)
Inavolisib + Letrozole + CDK4/6i
Participants will receive inavolisib, letrozole and CDK4/6i.
干预措施: CDK4/6i (Drug)
Inavolisib + Letrozole + CDK4/6i
Participants will receive inavolisib, letrozole and CDK4/6i.
干预措施: Inavolisib (Drug)
结局指标
主要结局
Progression-Free Survival (PFS)
时间窗: From randomization to the first occurrence of disease progression or death from any cause, whichever occurs first (up to 7 years)
次要结局
- Overall Survival (OS)(From randomization to death from any cause (up to 7 years))
- Investigator-assessed Objective Response Rate (ORR)(Up to 7 years)
- Investigator-assessed Duration of Response (DOR)(From the first occurrence of a confirmed objective response to the first occurrence of disease progression or death from any cause, whichever occurs first (up to 7 years))
- Investigator-assessed Clinical Benefit Rate (CBR)(Up to 7 years)
- Time to Confirmed Deterioration (TTCD) in Pain(From baseline until end of follow-up (up to 7 years))
- TTCD in Physical Function(From baseline until end of follow-up (up to 7 years))
- TTCD in Role Function(From baseline until end of follow-up (up to 7 years))
- TTCD in Global Health Status(From baseline until end of follow-up (up to 7 years))
- Percentage of Participants with Adverse Events(From baseline until end of follow-up (up to 7 years))
- Number of Participants Reporting Presence, Frequency, Severity, and/or Degree of Interference with Daily Function of Symptomatic Treatment Toxicities Assessed by NCI Patient-Reported Outcomes Common Terminology Criteria for Adverse Events (PRO-CTCAE)(Up to 7 years)
- Number of Participants Reporting Each Response Option for Treatment Side-effect Bother Single-item General Population, Question 5 (GP5) from the Functional Assessment of Cancer Therapy-General Questionnaire; (FACT-G)(Up to 7 years)
- Change from Baseline in Symptomatic Treatment Toxicities as Assessed Through use of the PRO-CTCAE(Baseline up to 7 years)
- Change from Baseline in Treatment Side-effect Bother as Assessed Through use of the FACT-G GP5 Item(Baseline up to 7 years)
