Paclitaxel (175 mg/m2) plus carboplatin versus paclitaxel (225 mg/m2) plus carboplatin in non-small cell lung cancer: A randomized study
AuthorKosmidis, Paraskevas A.
Skarlos, Dimosthenis V.
SourceSeminars in oncology
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A recent phase II study by our group documented a response rate of 27% with the combination paclitaxel (Taxol; Bristol-Myers Squibb Company, Princeton, NJ) 175 mg/m2 plus carboplatin dosed to a target area under the concentration-time curve of 7 in patients with advanced non-small cell lung cancer. In an effort to evaluate the dose-response relationship of paclitaxel with quality of life, we initiated a phase III prospective trial. Patients with inoperable non-small cell lung cancer were randomized into two groups. Group A received paclitaxel 175 mg/m2 plus carboplatin dosed to an area under the concentration-time curve of 6 every 3 weeks. Group a received the same regimen, with paclitaxel increased to 225 mg/m2. Since July 1996, 49 patients have entered the study, 29 in group A and 20 in group B. Patient and tumor characteristics were well distributed between both groups. In group A, 16 patients were evaluable, with one complete response, six partial responses, three stable disease, and six progressive disease. In group B, 12 patients were evaluable, with two partial responses, four stable disease, and six progressive disease. Treatment was well tolerated in both groups. More neurotoxicity and neutropenia were noticed with high-dose paclitaxel. There were no drug-related deaths. It is too early to draw definite conclusions regarding response and survival, but regarding toxicity, it seems that paclitaxel 225 mg/m2 plus carboplatin dosed to an area under the concentration-time curve of 6 is well tolerated without the use of growth factors. Although the results are premature, quality of life does not seem to be affected by the increased paclitaxel dose.
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