PT - JOURNAL ARTICLE AU - KOSUKE KASHIWABARA AU - HIROSHI SEMBA AU - SHINJI FUJII AU - SHINSUKE TSUMURA AU - RYOTA AOKI TI - Difference in Benefit of Chemotherapy Between Small Cell Lung Cancer Patients with Interstitial Pneumonia and Patients with Non-small Cell Lung Cancer DP - 2015 Feb 01 TA - Anticancer Research PG - 1065--1071 VI - 35 IP - 2 4099 - http://ar.iiarjournals.org/content/35/2/1065.short 4100 - http://ar.iiarjournals.org/content/35/2/1065.full SO - Anticancer Res2015 Feb 01; 35 AB - Background: It is not clear whether there is a difference in benefit of chemotherapy between small cell lung cancer (SCLC) patients with pre-existing idiopathic interstitial pneumonias (IIPs) and non-small cell lung cancer (NSCLC) patients with IIPs. Patients and Methods: We performed a retrospective study of the overall survival (OS) between advanced lung cancer patients with IIPs (n=28) and those without IIPs (n=145). Results: The OS in NSCLC patients with IIPs was shorter than in those without IIPs (median OS, 10.6 vs. 27.9 months, p=0.008) but the OS in SCLC patients with IIPs was not inferior to that of those without IIPs (12.7 vs. 14.8 months, p=0.835). Multivariate analysis showed that the small number of regimens increased the risk of mortality, instead of pre-existing IIPs. Conclusion: The continuation of chemotherapy in SCLC patients with IIPs made it possible to have a similar prognosis to that in those without IIPs.