Weekly paclitaxel/cisplatin with concurrent radiotherapy in patients with locally advanced non-small cell lung cancer: a phase I study.

G. Comella, G. Frasci, G. Scoppa, C. Guida, A. Gravina, F. Fiore, R. Casaretti, A. Daponte, P. Ruffolo, P. Comella

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We designed a phase I study to determine the maximum tolerated doses of weekly cisplatin and paclitaxel (Taxol; Bristol-Myers Squibb Company, Princeton, NJ) (doses escalated alternately) when given concurrently with standard or hyperfractionated radiotherapy (RT) and to define the nature of the dose-limiting toxicity. Chemotherapy-naive patients with locally advanced non-small cell lung cancer received weekly combination cisplatin/paclitaxel with concurrent local RT. Radiation therapy was initially given at the dose of 1.2 Gy twice daily x 5 d/wk x 5 weeks (total dose, 60 Gy). In the last two patient cohorts, the single daily dose was decreased to 2 Gy x 5 d/wk x 6 weeks. Overall, 25 patients were recruited into five different cohorts. Esophagitis was the main nonhematologic toxicity, occurring in 16 of 25 patients (64%; grade 3 or 4 in five). Neutropenia was the most prevalent hematologic toxicity, occurring in 33 of 141 weekly courses, but grade 4 neutropenia was seen in only four courses. Cisplatin/paclitaxel doses of 35 mg/m2/wk and 45 mg/m2/wk, respectively, were safe when standard RT was used, while the cisplatin dose had to be decreased to 30 mg/m2/wk in patients receiving bifractionation. Two complete and 13 partial responses were observed, for a 60% overall response rate (95% confidence interval, 39% to 79%). Median survival was 16 months, with a 66% 1-year actuarial probability. We thus conclude that the cisplatin/paclitaxel combination given weekly can be safely administered concurrent with both standard or hyperfractionated RT. Hyperfractionation is associated with a higher incidence of severe esophagitis and required a slight reduction in cisplatin dose. To verify whether the use of a daily schedule translates into a better therapeutic index, a new phase I study is under way, testing twice-daily cisplatin/paclitaxel concurrently with hyperfractionated RT.

Original languageEnglish
JournalSeminars in Oncology
Issue number4 Suppl 12
Publication statusPublished - Aug 1997

ASJC Scopus subject areas

  • Oncology


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