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  • Title: Phase II trial of Oxaliplatin and 5-Fluorouracil/Leucovorin combination in epithelial ovarian carcinoma relapsing within 2 years of platinum-based therapy.
    Author: Sundar S, Symonds RP, Decatris MP, Kumar DM, Osman A, Vasanthan S, O'byrne KJ.
    Journal: Gynecol Oncol; 2004 Aug; 94(2):502-8. PubMed ID: 15297195.
    Abstract:
    OBJECTIVE: To evaluate the efficacy and toxicity of Oxaliplatin and 5-Fluorouracil (5-FU)/Leucovorin (LV) combination in ovarian cancer relapsing within 2 years of prior platinum-based chemotherapy in a phase II trial. METHODS: Eligible patients had at least one prior platinum-based chemotherapy regimen, elevated CA-125 > or = 60 IU/l, radiological evidence of disease progression and adequate hepatic, renal and bone marrow function. Patients with raised CA-125 levels alone as marker of disease relapse were not eligible. Oxaliplatin (85 mg/m(2)) was given on day 1, and 5-Fluorouracil (370 mg/m(2)) and Leucovorin (30 mg) was given on days 1 and 8 of a 14-day cycle. RESULTS: Twenty-seven patients were enrolled. The median age was 57 years (range 42-74 years). The median platinum-free interval (PFI) was 5 months (range 0-17 months) with only 30% of patients being platinum sensitive (PFI > 6 months). Six patients (22%) had two prior regimens of chemotherapy. A total of 191 cycles were administered (median 7; range 2-12). All patients were evaluable for toxicity. The following grade 3/4 toxicities were noted: anemia 4%; neutropenia 15%; thrombocytopenia 11%; neurotoxicity 8%; lethargy 4%; diarrhea 4%; hypokalemia 11%; hypomagnesemia 11%. Among 27 enrolled patients, 20 patients were evaluable for response by WHO criteria and 25 patients were evaluable by Rustin's CA-125 criteria. The overall response rate (RR) by WHO criteria was 30% (95% CI: 15- 52) [three complete responses (CRs) and three partial responses (PRs)]. The CA-125 response rate was 56% (95% CI: 37-73). Significantly, a 25% (95% CI: 9-53) radiological and a 50% (95% CI: 28-72) CA-125 response rate were noted in platinum resistant patients (PFI < 6 months). The median response duration was 4 months (range 3-12) and the median overall survival was 10 months. CONCLUSION: Oxaliplatin and 5-Fluorouracil/Leucovorin combination has a good safety profile and is active in platinum-pretreated advanced epithelial ovarian cancer.
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