Weak signal.

PD-L1 inhibitors and PARP inhibitors—one of these is having the best year ever. In the ECOG-ACRIN 2511 trial, the addition of the PARP inhibitor veliparib to chemo for extensive stage small cell lung cancer produced a “signal of efficacy,” particularly among men with elevated LDH. While exciting, it falls in the shadow of IMpower133 where the PD-L1 inhibitor atezolizumab produced more than a signal with improved progression-free and overall survival across the board. | Owonikoko, J Clin Oncol 2018


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