A prospective study of gemcitabine and carboplatin as first-line therapy in advanced non-small cell lung cancer: toxicity of a three- versus a four-week schedule.
We evaluated the toxicity and activity of gemcitabine (Gemzar; Eli Lilly and Company, Indianapolis, IN) and carboplatin on a 3-week (trial A) versus a 4-week (trial B) schedule in patients with advanced/metastatic non-small cell lung cancer. Chemotherapy-naive patients in trial A received gemcitabine 1,000 mg/m(2) on days 1 and 8 plus carboplatin area under the curve of 5 on day 1, every 3 weeks. In trial B, patients received gemcitabine 1,000 mg/m(2) on days 1, 8, and 15 and carboplatin area under the curve of 6 on day 1, every 4 weeks. Thirty patients were enrolled in trial A and 28 in trial B. Patients received a total of 142 cycles in trial A and 134 in trial B. Despite more frequent treatment delays (82 cycles in trial B and 20 cycles in trial A), and dose reductions/omissions (mainly on day 15), gemcitabine mean dose intensities of both schedules were similar. The principal dose-limiting toxicity was grade 3/4 thrombocytopenia. Objective response rates were 40% in trial A and 68% in trial B (no complete response). Gemcitabine and carboplatin administered on days 1 and 8 every 3 weeks is associated with lower myelotoxicity than that of a 4-week schedule, although both schedules were active against non-small cell lung cancer. Semin Oncol 28 (suppl 10):10-14.[1]References
- A prospective study of gemcitabine and carboplatin as first-line therapy in advanced non-small cell lung cancer: toxicity of a three- versus a four-week schedule. Parente, B., Barroso, A., Conde, S., Guimarães, T., Seada, J. Semin. Oncol. (2001) [Pubmed]
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