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Combination therapy with PD-1/PD-L1 blockade: An overview of ongoing clinical trials.


ABSTRACT: Monoclonal antibodies (mAbs) that block the programmed death 1 (PD-1) or programmed death-ligand 1 (PD-L1) receptors are the most clinically advanced tumor immunotherapies. Given the broad antitumor efficacy and novel mechanism of action, numerous combinatorial approaches incorporating PD-1/PD-L1 blockade have been suggested; herein we present a comprehensive analysis of these clinical trials. We queried clinicaltrials.gov for all PD-1/PD-L1 mAbs administered for cancer therapy with an end date of 4/30/2017. A total of 1,218 clinical trials met our search criteria. These trials have a planned enrollment of 227,190 patients, and approximately half (493) were initiated in 2016 alone. Of these over 1,200 trials, 916 combine PD-1/PD-L1 blockade with at least one additional therapy, ranging from traditional treatment modalities like surgery and chemoradiation to newer therapies like small molecule inhibitors and other immunotherapies. The staggering proliferation of clinical trials combining PD-1/PD-L1 blockade with disparate treatments necessitates careful accounting to maximize efficiency and highlight areas of unmet needs. We believe our analysis provides this data and expect it will facilitate the design of future clinical trials in this burgeoning area of oncology research.

SUBMITTER: Johnson CB 

PROVIDER: S-EPMC5889289 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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Combination therapy with PD-1/PD-L1 blockade: An overview of ongoing clinical trials.

Johnson C Bryce CB   Win Shwe Y SY  

Oncoimmunology 20180313 4


Monoclonal antibodies (mAbs) that block the programmed death 1 (PD-1) or programmed death-ligand 1 (PD-L1) receptors are the most clinically advanced tumor immunotherapies. Given the broad antitumor efficacy and novel mechanism of action, numerous combinatorial approaches incorporating PD-1/PD-L1 blockade have been suggested; herein we present a comprehensive analysis of these clinical trials. We queried clinicaltrials.gov for all PD-1/PD-L1 mAbs administered for cancer therapy with an end date  ...[more]

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