Real-world Study of the Safety and Efficacy of Pembrolizumab in the Treatment of Advanced Non-small Cell Lung Cancer
Background and objective Pembrolizumab(PEM)has been shown to be effective in clinical trials for the treatment of advanced non-small cell lung cancer(NSCLC),but clinical trials were based on cohorts of patients selected on specific criteria,and whether the findings are consistent with real-world patients is debatable.The aim of this study is to evaluate the efficacy and safety of PEM in the treatment of advanced NSCLC based on real-world data.Methods A retro-spective collection of real-world data from patients with advanced NSCLC receiving PEM was conducted.Propensity score matching was used to eliminate inter-group differences and assess the efficacy and safety of PEM compared to chemotherapy.Results Among 450 matched patients,the incidence rates of any-grade adverse events were 79.87%in the PEM group and86.71%inthe chemotherapy group,while the incidence rates of grade>3 adverse events were 4.03%and 7.31%,respectively.The objective response rates were 48.63%for PEM and 36.00%for chemotherapy(P=0.011).The median progression-free survival was 15.5 months for PEM and 8.8 months for chemotherapy(P<0.001),and the median overall survival was not reached for PEM and 26.2 months for chemotherapy(P<0.001).Conclusion PEM treatment for advanced NSCLC demonstrates favorable survival outcomes and acceptable safety in real-world clinical practice.