TY - JOUR
T1 - Pembrolizumab plus Chemotherapy in Metastatic Non-Small-Cell Lung Cancer
AU - Gandhi, Leena
AU - Rodríguez-Abreu, Delvys
AU - Gadgeel, Shirish
AU - Esteban, Emilio
AU - Felip, Enriqueta
AU - De Angelis, Flávia
AU - Domine, Manuel
AU - Clingan, Philip
AU - Hochmair, Maximilian J
AU - Powell, Steven F
AU - Cheng, Susanna Y-S
AU - Bischoff, Helge G
AU - Peled, Nir
AU - Grossi, Francesco
AU - Jennens, Ross R
AU - Reck, Martin
AU - Hui, Rina
AU - Garon, Edward B
AU - Boyer, Michael
AU - Rubio-Viqueira, Belén
AU - Novello, Silvia
AU - Kurata, Takayasu
AU - Gray, Jhanelle E
AU - Vida, John
AU - Wei, Ziwen
AU - Yang, Jing
AU - Raftopoulos, Harry
AU - Pietanza, M Catherine
AU - Garassino, Marina C
AU - KEYNOTE-189 Investigators
AU - Boyer, Michael
AU - Bray, Victoria
AU - Houghton, Baerin Ben
AU - Sørensen, Jens Benn
AU - Hansen, Karin Holmskov
AU - Stelmach, Miroslaw Jan
AU - Walsh, William V.
AU - Wrangle, John
AU - Wrzesinski, Stephen H.
PY - 2018/5/31
Y1 - 2018/5/31
N2 - BACKGROUND First-line therapy for advanced non-small-cell lung cancer (NSCLC) that lacks targetable mutations is platinum-based chemotherapy. Among patients with a tumor proportion score for programmed death ligand 1 (PD-L1) of 50% or greater, pembrolizumab has replaced cytotoxic chemotherapy as the first-line treatment of choice. The addition of pembrolizumab to chemotherapy resulted in significantly higher rates of response and longer progression-free survival than chemotherapy alone in a phase 2 trial. METHODS In this double-blind, phase 3 trial, we randomly assigned (in a 2:1 ratio) 616 patients with metastatic nonsquamous NSCLC without sensitizing EGFR or ALK mutations who had received no previous treatment for metastatic disease to receive pemetrexed and a platinum-based drug plus either 200 mg of pembrolizumab or placebo every 3 weeks for 4 cycles, followed by pembrolizumab or placebo for up to a total of 35 cycles plus pemetrexed maintenance therapy. Crossover to pembrolizumab monotherapy was permitted among the patients in the placebo-combination group who had verified disease progression. The primary end points were overall survival and progression-free survival, as assessed by blinded, independent central radiologic review. RESULTS After a median follow-up of 10.5 months, the estimated rate of overall survival at 12 months was 69.2% (95% confidence interval [CI], 64.1 to 73.8) in the pembrolizumab- combination group versus 49.4% (95% CI, 42.1 to 56.2) in the placebocombination group (hazard ratio for death, 0.49; 95% CI, 0.38 to 0.64; P<0.001). Improvement in overall survival was seen across all PD-L1 categories that were evaluated. Median progression-free survival was 8.8 months (95% CI, 7.6 to 9.2) in the pembrolizumab-combination group and 4.9 months (95% CI, 4.7 to 5.5) in the placebo-combination group (hazard ratio for disease progression or death, 0.52; 95% CI, 0.43 to 0.64; P<0.001). Adverse events of grade 3 or higher occurred in 67.2% of the patients in the pembrolizumab-combination group and in 65.8% of those in the placebo-combination group. CONCLUSIONS In patients with previously untreated metastatic nonsquamous NSCLC without EGFR or ALK mutations, the addition of pembrolizumab to standard chemotherapy of pemetrexed and a platinum-based drug resulted in significantly longer overall survival and progression-free survival than chemotherapy alone.
AB - BACKGROUND First-line therapy for advanced non-small-cell lung cancer (NSCLC) that lacks targetable mutations is platinum-based chemotherapy. Among patients with a tumor proportion score for programmed death ligand 1 (PD-L1) of 50% or greater, pembrolizumab has replaced cytotoxic chemotherapy as the first-line treatment of choice. The addition of pembrolizumab to chemotherapy resulted in significantly higher rates of response and longer progression-free survival than chemotherapy alone in a phase 2 trial. METHODS In this double-blind, phase 3 trial, we randomly assigned (in a 2:1 ratio) 616 patients with metastatic nonsquamous NSCLC without sensitizing EGFR or ALK mutations who had received no previous treatment for metastatic disease to receive pemetrexed and a platinum-based drug plus either 200 mg of pembrolizumab or placebo every 3 weeks for 4 cycles, followed by pembrolizumab or placebo for up to a total of 35 cycles plus pemetrexed maintenance therapy. Crossover to pembrolizumab monotherapy was permitted among the patients in the placebo-combination group who had verified disease progression. The primary end points were overall survival and progression-free survival, as assessed by blinded, independent central radiologic review. RESULTS After a median follow-up of 10.5 months, the estimated rate of overall survival at 12 months was 69.2% (95% confidence interval [CI], 64.1 to 73.8) in the pembrolizumab- combination group versus 49.4% (95% CI, 42.1 to 56.2) in the placebocombination group (hazard ratio for death, 0.49; 95% CI, 0.38 to 0.64; P<0.001). Improvement in overall survival was seen across all PD-L1 categories that were evaluated. Median progression-free survival was 8.8 months (95% CI, 7.6 to 9.2) in the pembrolizumab-combination group and 4.9 months (95% CI, 4.7 to 5.5) in the placebo-combination group (hazard ratio for disease progression or death, 0.52; 95% CI, 0.43 to 0.64; P<0.001). Adverse events of grade 3 or higher occurred in 67.2% of the patients in the pembrolizumab-combination group and in 65.8% of those in the placebo-combination group. CONCLUSIONS In patients with previously untreated metastatic nonsquamous NSCLC without EGFR or ALK mutations, the addition of pembrolizumab to standard chemotherapy of pemetrexed and a platinum-based drug resulted in significantly longer overall survival and progression-free survival than chemotherapy alone.
KW - Adult
KW - Aged
KW - Aged, 80 and over
KW - Antibodies, Monoclonal, Humanized/adverse effects
KW - Antineoplastic Agents, Immunological/adverse effects
KW - Antineoplastic Combined Chemotherapy Protocols/adverse effects
KW - Carcinoma, Non-Small-Cell Lung/drug therapy
KW - Disease-Free Survival
KW - Double-Blind Method
KW - Female
KW - Follow-Up Studies
KW - Humans
KW - Kaplan-Meier Estimate
KW - Lung Neoplasms/drug therapy
KW - Male
KW - Middle Aged
U2 - 10.1056/nejmoa1801005
DO - 10.1056/nejmoa1801005
M3 - Journal article
C2 - 29658856
SN - 0028-4793
VL - 378
SP - 2078
EP - 2092
JO - The New England Journal of Medicine
JF - The New England Journal of Medicine
IS - 22
ER -