Randomized Phase II Study of Pemetrexed Versus Gefitinib in Previously Treated Patients with Advanced Non-small Cell Lung Cancer
- Authors
- Kim, Young Saing; Cho, Eun Kyung; Woo, Hyun Sun; Hong, Junshik; Ahn, Hee Kyung; Park, Inkeun; Sym, Sun Jin; Kyung, Sun Young; Kang, Shin Myung; Park, Jeong-Woong; Jeong, Sung Hwan; Park, Jinny; Lee, Jae Hoon; Shin, Dong Bok
- Issue Date
- Jan-2016
- Publisher
- KOREAN CANCER ASSOCIATION
- Keywords
- Pemetrexed; Gefitinib; Non-small cell lung cancer; Epidermal growth factor receptor; Second-line
- Citation
- CANCER RESEARCH AND TREATMENT, v.48, no.1, pp.80 - 87
- Journal Title
- CANCER RESEARCH AND TREATMENT
- Volume
- 48
- Number
- 1
- Start Page
- 80
- End Page
- 87
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/8748
- DOI
- 10.4143/crt.2014.307
- ISSN
- 1598-2998
- Abstract
- Purpose This study aimed to evaluate the efficacy and safety of pemetrexed versus gefitinib in patients with advanced non-small cell lung cancer (NSCLC) previously treated with chemotherapy. Materials and Methods Patients with advanced (stage IIIB or IV) or recurrent NSCLC were randomly assigned to receive either 500 mg/m(2) of pemetrexed intravenously every 3 weeks or gefitinib 250 mg/day orally. The primary end point was progression-free survival (PFS) at 6 months. Results A total of 95 patients were enrolled (47 for pemetrexed and 48 for gefitinib). Most patients were male (72%) and current/ex-smokers (69%), and 80% had non-squamous cell carcinoma. The epidermal growth factor receptor (EGFR) mutation status was determined in 38 patients (40%); one patient per each arm was positive for EGFR mutation. The 6-month PFS rates were 22% and 15% for pemetrexed and gefitinib, respectively (p=0.35). Both arms showed an identical median PFS of 2.0 months and a median overall survival (OS) of 8.5 months. In EGFR wild-type patients, higher response rate (RR) and longer PFS as well as OS were achieved via pemetrexed compared with gefitinib, although there were no significant differences (RR: 39% vs. 9%, p=0.07; median PFS: 6.6 months vs. 3.1 months, p=0.45; median OS: 29.6 months vs. 12.9 months, p=0.62). Toxicities were mild in both treatment arms. Frequently reported toxicities were anemia and fatigue for pemetrexed, and skin rash and anorexia for gefitinib. Conclusion Both pemetrexed and gefitinib had similar efficacy with good tolerability as second-line treatment in unselected patients with advanced NSCLC. However, pemetrexed is considered more effective than gefitinib for EGFR wild-type patients.
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