Differences between trials could possibly be attributed to the use of carboplatin; however, this seems unlikely because carboplatin is associated
with lower rates of nausea, vomiting, and nephrotoxicity, but a higher rate of thrombocytopenia, relative EGFR inhibitor to cisplatin [5, 6]. In this exploratory analysis, defining ≥65 years as ‘elderly’ allowed for sufficient patient numbers to be included in the main subgroup. Further analysis of ≥70-year-old patients showed efficacy and safety similar to those in ≥65-year-old patients, but the former was limited by a small population size, yielding more variable results. Our study underscores that NSCLC patients, regardless of age, benefit from appropriate treatment , and supports the idea that treatment selection in the elderly should not be based solely on chronological age. This exploratory analysis suggests that the outcomes of elderly patients with
nonsquamous NSCLC are consistent with those in the <70-year age group and the Q-ITT population with respect to dose intensity, efficacy, and tolerability. Therefore, with few limitations, elderly patients with advanced nonsquamous NSCLC and good performance status should be treated similarly to younger patients. We and others have shown that platinum-based SCH727965 cost doublet therapy is a tolerable, viable option for elderly advanced NSCLC patients [11, 12, 14]. However, our conclusions are hypothesis generating, as this retrospective analysis had a small sample size and unbalanced between-arm patient characteristics. The limitations of retrospective elderly patient studies include potential differences between chronological age and medical fitness, elderly population heterogeneity, arbitrary age cut-offs, and age-associated co-morbidities. Our selection criteria
of fit elderly patients may not have been applicable to the general elderly population. Therefore, a prospective clinical trial involving a carefully controlled group of elderly patients is warranted. Acknowledgments This work was supported by Eli Lilly and Company. The sponsor was responsible for the design and conduct of the trial, as well as the collection, analysis, and interpretation of data. The manuscript was prepared with input from all authors; all authors approved the final version for submission Racecadotril to the journal. Rebecca Cheng and Mauro Orlando are employees of Eli Lilly and Company and own stock in the company. Helen Barraclough is an employee of Eli Lilly and Company. Joo-Hang Kim’s institution received a grant from Eli Lilly and Company for this clinical trial. José Rodrigues-Pereira has no relevant conflicts of interest to report. The authors wish to thank the patients, their families, and the study personnel who participated in this clinical trial. We also thank Shu Bin Liu and Wei Shan Shi for assistance with statistical analyses.