Abstract
Background
Pemetrexed is a multitargeted antifolate enzyme inhibitor, which has activity against a variety of tumors, including advanced gastric cancer (AGC). The aim of this study was to assess efficacy and safety of pemetrexed plus cisplatin (PemCis) combination in the treatment of AGC in Korean patients.
Patients and methods
This was a multicenter, single arm, open label study. Patients with no prior palliative chemotherapy received pemetrexed 500 mg/m2 and cisplatin 75 mg/m2 day 1, every 3 weeks plus folic acid and vitamin B12 supplementation. Response rate was assessed according to response evaluation criteria in solid tumors (RECIST) criteria.
Results
Of the 50 patients evaluable for efficacy, 13 had partial response for an overall response rate of 26% (95% CI, 14.6–40.3%) and 15 (30%) had stable disease. Median time to progression was 2.8 months (95%CI, 2.2–4.4 months), and median overall survival was 6.6 months (95% CI, 4.8–10.4 months). Of the 51 patients evaluable for safety, the most frequent NCI-CTC grade 3/4 toxicities were neutropenia in 49% of patients (25% of cycles) and anorexia in 10% of patients (4% of cycles).
Conclusion
PemCis has a modest activity and acceptable toxicity profile in patients with AGC. Clinical trials with different combinations and dose regimens are, therefore, warranted.
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Acknowledgments
This study was funded by Eli Lilly and Company (Study KCSG 03-06-25; H3E-KL-JMFK).
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Kim, Y.H., Chung, H.C., Kang, W.K. et al. Pemetrexed and cisplatin in patients with advanced gastric cancer: a Korean cancer study group multicenter phase II study. Cancer Chemother Pharmacol 62, 263–270 (2008). https://doi.org/10.1007/s00280-007-0600-y
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DOI: https://doi.org/10.1007/s00280-007-0600-y