Combination chemotherapy of cisplatin and 5-fluorouracil for advanced colorectal adenocarcinoma |
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Authors: | Nicholas J. Petrelli Stephan Madejewicz Youcef Rustum Lemuel Herrera Patrick J. Creaven John Plager Joan Soloman Arnold Mittelman |
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Affiliation: | (1) Department of Surgical Oncology, Roswell Park Memorial Institute, 666 Elm Street, 14263 Buffalo, New York, USA;(2) Department of Clinical Pharmacology and Therapeutics, Roswell Park Memorial Institute, 14263 Buffalo, New York, USA;(3) Department of Experimental Therapeutics, Roswell Park Memorial Institute, 14263 Buffalo, New York, USA |
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Abstract: | Summary A total of 24 patients with advanced colorectal adenocarcinoma were entered into a phase I–II study of 5-fluorouracil (5-FU) and cisplatin, 21 of whom had previously received 5-FU. The starting dose of cisplatin was 20 mg/m2 diluted in 1000 cc normal saline, given over 20 h daily for 5 days, together with 600 mg/m2 5-FU diluted in 1000cc fluid, given simultaneously over 20 h daily for 5 days. This regiment was given every 4 weeks. The dose-limiting toxicity was renal and cumulative. All 24 patients were evaluable for toxicity. Of 12 patients on the abovementioned starting dose, 8 underwent a cisplatin dose reduction to 15 mg/m2 due to a progressive decrease in creatinine clearance following the second or third course of treatment. Of 12 patients who started cisplatin at 15 mg/m2 and 5-FU at 600 mg/m2, 11 were maintained at this dose. A WBC nadir count of<2000/mm3 was seen in four patients. Thrombocytopenia occurred in three patients who received 15 mg/m2 cisplatin and 600 mg/m2 5-FU. In all, 21 of the 24 patients had objectively measurable disease and were also evaluable for response as follows: 1 complete response, 2 partial responses, 1 case of stable disease, and 17 patients with progressive disease. |
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