Celio L, Sternberg CN, Labianca R, La Torre I, Amoroso V, Barone C, Pinotti G, Cascinu S, Di Costanzo F, Cetto GL, Bajetta E. Pemetrexed in combination with oxaliplatin as a first-line therapy for advanced gastric cancer: a multi-institutional phase II study.
Ann Oncol 2009;
20:1062-7. [PMID:
19218305 DOI:
10.1093/annonc/mdn766]
[Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND
This clinical trial assessed the efficacy of pemetrexed combined with oxaliplatin (PEMOX) in patients with advanced gastric cancer (AGC).
PATIENTS AND METHODS
Forty-four patients with untreated AGC were enrolled to evaluate response rate (RR). Patients received pemetrexed (500 mg/m(2)) with vitamin supplementation and oxaliplatin (120 mg/m(2)) every 21 days for six cycles or until disease progression occurred.
RESULTS
Median age was 62 years (range 26-76). The majority of patients (93%) had metastatic disease. Sixteen of the 44 patients achieved confirmed response [RR 36%; 95% confidence interval (CI) 22% to 52%]; four complete responses and 12 partial responses (complete and partial responses according to the RECIST guidelines are the confirmed-responses observed in the study population). Median time to tumor progression (TTP) was 6.2 months (95% CI 4.3-7.5) and median survival was 10.8 months (95% CI 7.7-17.2). A total of 220 cycles were administered, with a median of six cycles. Most common grade 3/4 toxic effects were neutropenia in 41% of patients (19% of cycles) and thrombocytopenia in 11% of patients (4% of cycles). Treatment delays or dose reductions for toxicity occurred in 10% and 5% of cycles, respectively.
CONCLUSIONS
PEMOX is active and well tolerated in AGC. RR, TTP, and survival were comparable to those achieved in studies using different 5-fluorouracil (5-FU)-oxaliplatin combinations, without the inconvenience of prolonged 5-FU schedules.
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