A Randomized, Double-Blind, Phase 3 Study of Pemetrexed + Platinum Chemotherapy With or Without Pembrolizumab (MK-3475) in TKI-resistant EGFR-mutated Tumors in Metastatic Non-squamous Non-small Cell Lung Cancer (NSCLC) Participants (KEYNOTE-789)
试验速览
- 阶段
- 3 期
- 状态
- 已完成
- 入组人数
- 492
- 试验地点
- 158
- 主要终点
- Progression-free Survival (PFS) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1)
研究概览
简要总结
The purpose of this study is to evaluate the efficacy and safety of pemetrexed plus platinum chemotherapy (carboplatin or cisplatin) with or without pembrolizumab (MK-3475; KEYTRUDA®) in the treatment of adults with the following types of tyrosine kinase inhibitor (TKI)-resistant, epidermal growth factor receptor (EGFR)-mutated, metastatic non-squamous non-small cell lung cancer (NSCLC) tumors: 1) TKI-failures (including osimertinib [TAGRISSO®] failure) with T790M-negative mutation tumors, 2) T790M-positive mutation tumors with prior exposure to osimertinib, and 3) first-line osimertinib failure regardless of T790M mutation status.
The primary study hypotheses are that the combination of pembrolizumab plus chemotherapy has superior efficacy compared to saline placebo plus chemotherapy in terms of: 1) Progression-free Survival (PFS) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) based on blinded independent central review, and 2) Overall Survival (OS). This study will be considered to have met its success criteria if the combination of pembrolizumab plus chemotherapy is superior to saline placebo plus chemotherapy in terms of PFS or OS.
Upon study completion, participants are discontinued and may be enrolled in a pembrolizumab extension study, if available.
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 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Histologically or cytologically confirmed diagnosis of Stage IV non-squamous NSCLC.
- •Documentation of tumor activating EGFR mutation, specifically either DEL19 or L858R.
- •Investigator-determined radiographic disease progression per RECIST 1.1 after treatment with an EGFR TKI therapy: a) Participants previously treated with 1st or 2nd generation EGFR TKI (e.g. erlotinib/afatinib/gefitinib) are required to have confirmed documented absence of EGFR T790M mutation; b) Participants with confirmed acquired T790M mutation after 1st or 2nd generation EGFR TKI (e.g. erlotinib/afatinib/gefitinib) are required to have osimertinib TKI treatment failure prior to enrollment; c) Participants previously failed osimertinib TKI treatment as 1st line therapy are eligible regardless of their EGFR T790M mutation status. Note: TKI washout period for all participants is 1 week or 2 half-lives after last treatment dose, whichever is longer. TKI washout should be completed prior to first dose of study treatment.
- •Measurable disease per RECIST 1.1 as assessed by the local site investigator/radiology.
- •Provided archival tumor tissue sample or newly obtained (no anti-neoplastic therapy since biopsy) core or excisional biopsy of a tumor lesion not previously irradiated.
- •Life expectancy of at least 3 months.
- •Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 within 7 days prior to the first dose of study treatment but before randomization.
- •Male participants must agree to use contraception during the treatment period and for at least 120 days after the last dose of pembrolizumab and up to 180 days after last dose of chemotherapeutic agents.
- •Female participants must not be pregnant, not breastfeeding, and must agree to use contraception during the treatment period and for at least 120 days after the last dose of pembrolizumab and up to 180 days after the last dose of chemotherapeutic agents.
- •Adequate organ function.
排除标准
- •Predominantly squamous cell histology NSCLC. Mixed tumors will be categorized by the predominant cell type; if small cell elements are present, the participant is ineligible.
- •Symptomatic ascites or pleural effusion. A participant who is clinically stable following treatment for these conditions (including therapeutic thoraco- or paracentesis) is eligible.
- •Received prior therapy with an anti-programmed cell death protein-1 (anti-PD-1), anti-programmed cell death-ligand 1 (anti-PD-L1), or anti-PD-L2 agent or with an agent directed to another stimulatory or co-inhibitory T-cell receptor (e.g. cytotoxic T-lymphocyte-associated protein-4 [CTLA-4], OX-40, CD137).
- •Received prior systemic cytotoxic chemotherapy or investigational agent(s), excluding EGFR TKIs, for metastatic NSCLC. [Notes: 1) Prior treatment with chemotherapy and/or radiation as part of neoadjuvant/adjuvant therapy is allowed as long as therapy was completed at least 6 months prior to the diagnosis of metastatic NSCLC. 2) If participant received major surgery, they must have recovered adequately from the toxicity and/or complications from the intervention prior to starting study treatment. 3) Prior exposure to traditional medicine(s) is allowed as long as therapy was discontinued at least 4 weeks prior to the first dose of study treatment.]
- •Received prior radiotherapy within 2 weeks of start of study treatment or has received lung radiation therapy of >30 Gray (Gy) within 6 months before the first dose of study treatment. Participants must have recovered from all radiation-related toxicities, not require corticosteroids, and not have had radiation pneumonitis. A 1-week washout is permitted for palliative radiation (≤2 weeks of radiotherapy) to non-central nervous system (CNS) disease.
- •Received a live vaccine within 30 days prior to the first dose of study treatment.
- •Currently participating in or has participated in a study of an investigational agent or has used an investigational device within 4 weeks prior to the first dose of study treatment.
- •Diagnosis of immunodeficiency or is receiving chronic systemic steroid therapy (in dosing exceeding 10 mg daily of prednisone equivalent) or any other form of immunosuppressive therapy within 7 days prior the first dose of study treatment.
- •Known additional malignancy that is progressing or has required active treatment within the past 5 years. (Note: Participants with basal cell carcinoma of the skin, squamous cell carcinoma of the skin, superficial bladder cancer, or carcinoma in situ (e.g. breast carcinoma, cervical cancer in situ) that have undergone potentially curative therapy are not excluded.)
- •Known active untreated CNS metastases and/or carcinomatous meningitis.
- •Severe hypersensitivity (≥ Grade 3) to pembrolizumab and/or any of its excipients.
- •Known sensitivity to any component of cisplatin, carboplatin, or pemetrexed.
- •Active autoimmune disease that has required systemic treatment in past 2 years.
- •History of (non-infectious) pneumonitis that required steroids or has current pneumonitis.
- •Active infection requiring systemic therapy.
- •Known history of human immunodeficiency virus (HIV) infection.
- •Known history of Hepatitis B or known active Hepatitis C virus.
- •Known history of active tuberculosis (TB; Bacillus tuberculosis)
- •Pregnant, breastfeeding or expecting to conceive or father children within the projected duration of the study, starting with the screening visit through 120 days after the last dose of pembrolizumab and up to 180 days after the last dose of chemotherapeutic agents.
研究组 & 干预措施
Pembro+Pemetrexed+Chemo
Participants receive pembrolizumab (pembro) 200 mg via intravenous (IV) infusion on Day 1 of each 3-week cycle (Q3W) for up to 35 cycles PLUS pemetrexed 500 mg/m^2 via IV infusion Q3W with no restrictions on the number of cycles PLUS platinum chemotherapy (chemo) (either carboplatin Area Under the Curve [AUC] 5 via IV infusion Q3W for 4 cycles [Cycles 1-4] or cisplatin 75 mg/m^2 via IV infusion Q3W for 4 cycles [Cycles 1-4]).
干预措施: pembrolizumab (Biological)
Pembro+Pemetrexed+Chemo
Participants receive pembrolizumab (pembro) 200 mg via intravenous (IV) infusion on Day 1 of each 3-week cycle (Q3W) for up to 35 cycles PLUS pemetrexed 500 mg/m^2 via IV infusion Q3W with no restrictions on the number of cycles PLUS platinum chemotherapy (chemo) (either carboplatin Area Under the Curve [AUC] 5 via IV infusion Q3W for 4 cycles [Cycles 1-4] or cisplatin 75 mg/m^2 via IV infusion Q3W for 4 cycles [Cycles 1-4]).
干预措施: pemetrexed (Drug)
Pembro+Pemetrexed+Chemo
Participants receive pembrolizumab (pembro) 200 mg via intravenous (IV) infusion on Day 1 of each 3-week cycle (Q3W) for up to 35 cycles PLUS pemetrexed 500 mg/m^2 via IV infusion Q3W with no restrictions on the number of cycles PLUS platinum chemotherapy (chemo) (either carboplatin Area Under the Curve [AUC] 5 via IV infusion Q3W for 4 cycles [Cycles 1-4] or cisplatin 75 mg/m^2 via IV infusion Q3W for 4 cycles [Cycles 1-4]).
干预措施: carboplatin (Drug)
Pembro+Pemetrexed+Chemo
Participants receive pembrolizumab (pembro) 200 mg via intravenous (IV) infusion on Day 1 of each 3-week cycle (Q3W) for up to 35 cycles PLUS pemetrexed 500 mg/m^2 via IV infusion Q3W with no restrictions on the number of cycles PLUS platinum chemotherapy (chemo) (either carboplatin Area Under the Curve [AUC] 5 via IV infusion Q3W for 4 cycles [Cycles 1-4] or cisplatin 75 mg/m^2 via IV infusion Q3W for 4 cycles [Cycles 1-4]).
干预措施: cisplatin (Drug)
Placebo+Pemetrexed+Chemo
Participants receive normal saline solution via IV infusion on Day 1 of each 3-week cycle (Q3W) for up to 35 cycles PLUS pemetrexed 500 mg/m^2 via IV infusion Q3W with no restrictions on the number of cycles PLUS platinum chemotherapy (chemo)(either carboplatin AUC 5 via IV infusion Q3W for 4 cycles [Cycles 1-4] or cisplatin 75 mg/m^2 via IV infusion Q3W for 4 cycles [Cycles 1-4]).
干预措施: pemetrexed (Drug)
Placebo+Pemetrexed+Chemo
Participants receive normal saline solution via IV infusion on Day 1 of each 3-week cycle (Q3W) for up to 35 cycles PLUS pemetrexed 500 mg/m^2 via IV infusion Q3W with no restrictions on the number of cycles PLUS platinum chemotherapy (chemo)(either carboplatin AUC 5 via IV infusion Q3W for 4 cycles [Cycles 1-4] or cisplatin 75 mg/m^2 via IV infusion Q3W for 4 cycles [Cycles 1-4]).
干预措施: carboplatin (Drug)
Placebo+Pemetrexed+Chemo
Participants receive normal saline solution via IV infusion on Day 1 of each 3-week cycle (Q3W) for up to 35 cycles PLUS pemetrexed 500 mg/m^2 via IV infusion Q3W with no restrictions on the number of cycles PLUS platinum chemotherapy (chemo)(either carboplatin AUC 5 via IV infusion Q3W for 4 cycles [Cycles 1-4] or cisplatin 75 mg/m^2 via IV infusion Q3W for 4 cycles [Cycles 1-4]).
干预措施: cisplatin (Drug)
Placebo+Pemetrexed+Chemo
Participants receive normal saline solution via IV infusion on Day 1 of each 3-week cycle (Q3W) for up to 35 cycles PLUS pemetrexed 500 mg/m^2 via IV infusion Q3W with no restrictions on the number of cycles PLUS platinum chemotherapy (chemo)(either carboplatin AUC 5 via IV infusion Q3W for 4 cycles [Cycles 1-4] or cisplatin 75 mg/m^2 via IV infusion Q3W for 4 cycles [Cycles 1-4]).
干预措施: saline solution (Drug)
结局指标
主要结局
Progression-free Survival (PFS) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1)
时间窗: Up to ~40 months
PFS is defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurs first. PFS was assessed by blinded independent central review (BICR) using RECIST 1.1. Per RECIST 1.1, PD is defined as at least a 20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. Note: The appearance of one or more new lesions is also considered PD. The PFS presented was analyzed using the product-limit (Kaplan-Meier) method for censored data.
Overall Survival (OS)
时间窗: Up to ~51 months
OS is defined as the time from randomization to death due to any cause. Participants without documented death at the time of the final analysis will be censored at the date of the last follow-up. The OS presented was analyzed using the product-limit (Kaplan-Meier) method for censored data.
次要结局
- Objective Response Rate (ORR) Per RECIST 1.1(Up to ~51 months)
- Duration of Response (DOR) Per RECIST 1.1(Up to ~51 months)
- Change From Baseline in European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire-Core 30 (QLQ-C30) Global Health Status (Item 29) and Quality of Life (Item 30) Combined Score(Baseline and Week 18)
- Time to True Deterioration (TTD) in the EORTC Questionnaire Composite Endpoint of Cough, Chest Pain or Dyspnea(Baseline and up to ~51 months)
- Percentage of Participants Who Experienced an Adverse Event (AE)(Up to ~44 months)
- Percentage of Participants Who Discontinued Study Treatment Due to AEs(Up to ~41 months)