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    Health-Related Quality of Life With Carboplatin-Paclitaxel or nab-Paclitaxel With or Without Pembrolizumab in Patients With Metastatic Squamous Non-Small-Cell Lung Cancer
    (Amer Soc Clinical Oncology, 2020) Mazieres, Julien; Kowalski, Dariusz; Luft, Alexander; Vicente, David; Tafreshi, Ali; Gumus, Mahmut; Laktionov, Konstantin
    PURPOSE In the phase 3 KEYNOTE-407 study, the addition of pembrolizumab to carboplatin-paclitaxel/ nab-paclitaxel significantly improved overall survival, progression-free survival, and objective response rate in patients with previously untreated metastatic squamous non-small-cell lung cancer (NSCLC), with little impact on severe toxicity. We present patient-reported outcomes (PROs) from KEYNOTE-407. METHODS Patients were randomly assigned to receive 4 cycles of pembrolizumab 200 mg or placebo once every 3 weeks plus carboplatin plus paclitaxel or nab-paclitaxel, followed by pembrolizumab or placebo for an additional 31 cycles. Health-related quality of life (HRQoL) was evaluated using the European Organisation for Research and Treatment of Cancer Treatment of Cancer Quality of Life Questionnaire-Core 30 (QLQ-C30) and Quality of Life Questionnaire-Lung Cancer Module 13 (QLQ-LC13). Key PRO endpoints were change from baseline to weeks 9 and 18 (during and after platinum therapy) in the QLQ-C30 global health status/quality of life (GHS/QoL) score and time to deterioration in the composite endpoint of cough, chest pain, or dyspnea from the QLQ-C30 and QLQ-LC13. Two-sided, nominal P values are provided. RESULTS A total of 554 and 553 patients completed >= 1 QLQ-C30 or >= 1 QLQ-LC13 assessment, respectively. GHS/QoL score improved for the pembrolizumab-combination group (least squares [LS] mean [95% CI] change from baseline: week 9, 1.8 [-0.9 to 4.4]; week 18, 4.3 [1.7 to 6.9]) and deteriorated in the placebo-combination group (week 9, -1.8 [-4.4 to 0.7]; week 18, -0.57 [-3.3 to 2.2]). Between-group differences were improved for the pembrolizumab-combination group (difference in LS mean scores: week 9, 3.6 [95% CI, 0.3 to 6.9], nominal P =.0337; week 18, 4.9 [1.4 to 8.3], nominal P=.0060). Median time to deterioration in cough, chest pain, or dyspnea was not reached in either group (hazard ratio, 0.79; 95% CI, 0.58 to 1.06]; nominal P=.125). CONCLUSION Addition of pembrolizumab to chemotherapy maintained or improved HRQoL measurements relative to baseline and improved HRQoL versus chemotherapy alone at weeks 9 and 18. These results support use of pembrolizumab plus chemotherapy as first-line therapy for metastatic squamous NSCLC. (c) 2019 by American Society of Clinical Oncology
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    A Randomized, Placebo-Controlled Trial of Pembrolizumab Plus Chemotherapy in Patients With Metastatic Squamous NSCLC: Protocol-Specified Final Analysis of KEYNOTE-407
    (Elsevier Science Inc, 2020) Paz-Ares, Luis; Vicente, David; Tafreshi, Ali; Robinson, Andrew; Parra, Hector Soto; Mazieres, Julien; Hermes, Barbara
    Introduction: In the randomized KEYNOTE-407 study (ClinicalTrials.gov, NCT02775435), pembrolizumab plus carboplatin and paclitaxel/nab-paclitaxel (chemotherapy) significantly improved overall survival (OS) and progression-free survival (PFS) compared with placebo plus chemotherapy in patients with previously untreated metastatic squamous NSCLC. We report updated efficacy outcomes from the protocol-specified final analysis and, for the first time, progression on next line of treatment. Methods: Eligible patients were randomized to chemotherapy plus either pembrolizumab (n = 278) or placebo (n = 281). After positive results from the second interim analysis, patients still receiving placebo could cross over to pembrolizumab monotherapy at the time of confirmed progressive disease. The primary end points were OS and PFS. PFS-2 (time from randomization to progression on next-line treatment/death, whichever occurred first) was an exploratory end point. Results: After median (range) follow-up of 14.3 (0.1-31.3) months, pembrolizumab plus chemotherapy continued to exhibit a clinically meaningful improvement over placebo plus chemotherapy in OS (median, 17.1 mo [95% confidence interval (CI): 14.4-19.9] versus 11.6 mo [95% CI: 10.1-13.7]; hazard ratio [HR], 0.71 [95% CI: 0.58-0.88]) and PFS (median, 8.0 mo [95% CI: 6.3-8.4] versus 5.1 mo [95% CI: 4.3-6.0]; HR, 0.57 [95% CI: 0.47-0.69]). PFS-2 was longer for patients randomized to first-line pembrolizumab plus chemotherapy (HR, 0.59 [95% CI: 0.49-0.72]). Grade 3 to 5 adverse events occurred in 74.1% and 69.6% of patients receiving pembrolizumab plus chemotherapy and placebo plus chemotherapy, respectively. Conclusions: Pembrolizumab plus chemotherapy continued to exhibit substantially improved OS and PFS in patients with metastatic squamous NSCLC. The PFS-2 outcomes support pembrolizumab plus chemotherapy as a standard first-line treatment in patients with metastatic squamous NSCLC. (C) 2020 International Association for the Study of Lung Cancer. Published by Elsevier Inc. All rights reserved.