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- W3089749215 abstract "The authors conducted a multicenter retrospective study on the outcome of programmed death-ligand 1 tumor proportion score≥50% advanced non–small cell lung cancer patients treated with first-line pembrolizumab according to the presence/absence of brain metastases. A total of 282 patients were included, of whom 56 had brain metastases that were treated with upfront local radiation therapy in 80.3% of cases. The overall response rate was 39.2% and 44.4% in patients with and without brain metastases ( P =0.48), respectively, while intracranial response rate and intracranial disease control rate were 67.5% and 85.0%, respectively. The median time-to-treatment failure (TTF) and overall survival (OS) were 4.2 and 9.9 months versus 10.8 and 26.5 months for patients with and without brain metastases ( P =0.06 and 0.05, respectively). Drug discontinuation rate due to treatment-related adverse events was 10.7% and 10.2% in patients with and without brain metastases, respectively. Multivariate analysis showed that baseline steroids was an independent predictor for a worse OS ( P <0.001), while performance status (PS)≥2 was an independent predictor for a poorer TTF ( P <0.001) and OS ( P <0.001). In patients with brain metastases, only PS ≥2 was predicted for a worse TTF ( P =0.02) and OS ( P =0.03). Pembrolizumab has activity against brain metastases from non–small cell lung cancers with programmed death-ligand 1≥50%. Presence of brain metastases per se does not appear to be prognostic, and PS ≥2 seems to be the only factor associated with a worse outcome in patients with brain metastases." @default.
- W3089749215 created "2020-10-08" @default.
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- W3089749215 date "2020-09-25" @default.
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- W3089749215 title "Efficacy of Pembrolizumab Monotherapy in Patients With or Without Brain Metastases From Advanced Non–Small Cell Lung Cancer With a PD-L1 Expression ≥50%" @default.
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- W3089749215 doi "https://doi.org/10.1097/cji.0000000000000340" @default.
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