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Spotlight on pembrolizumab in non-small cell lung cancer: the evidence to date.

ABSTRACT: Immunotherapy with immune checkpoint inhibitors has opened a new arena in cancer therapeutics. Pembrolizumab is a highly selective anti-programmed cell death protein 1 (PD-1) antibody that has shown efficacy, leading to survival benefit and durable responses, in some patients with non-small cell lung cancer (NSCLC). It has been approved by the US Food and Drug Administration for the treatment of patients with metastatic NSCLC, whose tumors express PD-1 ligand 1 (PD-L1), with disease progression on or after platinum-containing chemotherapy. Here, we briefly discuss the PD-1/PD-L1 pathway and pembrolizumab before delving into the clinical trials that have led to its just-mentioned approval in NSCLC and ongoing clinical trials. Finally, we discuss the use of biomarkers, primarily PD-L1, in the context of pembrolizumab and NSCLC.

SUBMITTER: Vachhani P

PROVIDER: S-EPMC5045223 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature

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Spotlight on pembrolizumab in non-small cell lung cancer: the evidence to date.

Vachhani Pankit P Chen Hongbin H

OncoTargets and therapy 20160923

Immunotherapy with immune checkpoint inhibitors has opened a new arena in cancer therapeutics. Pembrolizumab is a highly selective anti-programmed cell death protein 1 (PD-1) antibody that has shown efficacy, leading to survival benefit and durable responses, in some patients with non-small cell lung cancer (NSCLC). It has been approved by the US Food and Drug Administration for the treatment of patients with metastatic NSCLC, whose tumors express PD-1 ligand 1 (PD-L1), with disease progression ...[more]

PMID: 27713639

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Project description:BACKGROUNDThe anti-programmed cell death 1 (anti-PD-1) antibody pembrolizumab is clinically active against non-small cell lung cancer (NSCLC). In addition to T cells, human natural killer (NK) cells, reported to have the potential to prolong the survival of patients with advanced NSCLC, also express PD-1. This study aimed to investigate the safety and efficacy of pembrolizumab plus allogeneic NK cells in patients with previously treated advanced NSCLC.METHODSIn total, 109 enrolled patients with a programmed death ligand 1 (PD-L1) tumor proportion score (TPS) of 1% or higher were randomly allocated to group A (n = 55 patients given pembrolizumab plus NK cells) or group B (n = 54 patients given pembrolizumab alone). The patients received i.v. pembrolizumab (10 mg/kg) once every 3 weeks and continued treatment until the occurrence of tumor progression or unacceptable toxicity. The patients in group A continuously received 2 cycles of NK cell therapy as 1 course of treatment.RESULTSIn our study, patients in group A had longer survival than did patients in group B (median overall survival [OS]: 15.5 months vs. 13.3 months; median progression-free survival [PFS]: 6.5 months vs. 4.3 months; P < 0.05). In group A patients with a TPS of 50% or higher, the median OS and PFS was significantly longer. Moreover, the patients in group A treated with multiple courses of NK cell infusion had better OS (18.5 months) than did those who received a single course of NK cell infusion (13.5 months).CONCLUSIONPembrolizumab plus NK cell therapy yielded improved survival benefits in patients with previously treated PD-L1+ advanced NSCLC.TRIAL REGISTRATIONClinicalTrials.gov NCT02843204.FUNDINGThis work was supported by grants from the National Natural Science Foundation of China (NSFC) - Guangdong Joint Foundation of China (no. U1601225); the NSFC (no. 81671965); the Guangdong Provincial Key Laboratory Construction Project of China (no. 2017B030314034); and the Key Scientific and Technological Program of Guangzhou City (no. 201607020016).

Dataset Information

Spotlight on pembrolizumab in non-small cell lung cancer: the evidence to date.

Publications

Spotlight on pembrolizumab in non-small cell lung cancer: the evidence to date.

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