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Publication Abstract

Authors: Hardy D, Cormier JN, Xing Y, Liu CC, Xia R, Du XL

Title: Chemotherapy-associated toxicity in a large cohort of elderly patients with non-small cell lung cancer.

Journal: J Thorac Oncol 5(1):90-8

Date: 2010 Jan

Abstract: BACKGROUND: The objective of this study was to examine the risks for short-term (< or =3 months) and long-term (>3 months) chemotherapy-associated toxicities in a large population-based cohort of patients with non-small cell lung cancer from 1991 to 2002. METHODS: The population consisted of 41,361 men and 30,804 women > or =65 years identified from the Surveillance, Epidemiology, and End Results-Medicare-linked database. The incidence of 50 toxicity-associated end points was calculated for 14 chemotherapy agents. Short- and long-term toxicities with a > or =2-fold increase in incidence compared with the no-chemotherapy group were defined as chemotherapy-associated toxicities. Hazard ratios and 95% confidence intervals for the risk of toxicity were calculated for the four most common chemotherapy agents for non-small cell lung cancer: cisplatin/carboplatin, paclitaxel, vinorelbine/vinblastine, and gemcitabine. RESULTS: The most common short-term toxicities (9.2-60%) included acute anemia, nausea, and neutropenia. The most common long-term toxicities (15-37%) included acute anemia, respiratory failure, pulmonary fibrosis, dehydration, neutropenia, nausea, and fever. Multivariate analysis for selected chemotherapies demonstrated that after adjusting for other risk factors and confounders, some short-term toxicities became nonsignificant; however, almost all long-term toxicities remained significant. Long-term toxicity increased over time and was more likely in women, minority populations, those with fewer baseline comorbidities, and across disease stages. CONCLUSIONS: The administration of various chemotherapy agents for non-small cell lung was associated with a number of short- and long-term toxicities. The projected survival benefits of chemotherapy must be weighed against the risk of long-term toxicities.

Last Modified: 03 Sep 2013