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Cancer Chemother Pharmacol. 2012 Jun;69(6):1625-31. doi: 10.1007/s00280-012-1871-5. Epub 2012 May 8.

A phase I trial of concurrent chemoradiotherapy with non-split administration of docetaxel and cisplatin for dry stage III non-small-cell lung cancer (JCOG9901DI).

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  • 1Department of Respiratory Medicine and Medical Oncology, Yokohama Municipal Citizen's Hospital, 56 Okazawa-cho, Hodogaya-Ku, Yokohama, Kanagawa, 240-8555, Japan. na00-hida@city.yokohama.jp

Abstract

PURPOSE:

This study aimed to establish the maximum tolerated dose of concurrent chemoradiotherapy (cCRT) with conventional administration of the docetaxel (D) plus cisplatin (P) (conv-DP) regimen.

METHODS:

Patients (aged ≤70 years) with unresectable dry stage III non-small-cell lung cancer (NSCLC) and having performance status 0 or 1 and adequate organ function were eligible. They received radiotherapy (60 Gy in 30 fractions) once daily starting on day 2. Concurrent P (day 1; 60 mg/m(2) at Levels 1-3, 80 mg/m(2) at Level 4) and D (day 1; 30 mg/m(2) at Level 1, 40 mg/m(2) at Level 2, 50 mg/m(2) at Levels 3-4) were administered every 4 weeks for 2-4 courses.

RESULTS:

Eighteen patients were enrolled (stage IIIA/IIIB, 5/13 patients). Three cases of dose-limiting toxicity were observed in this study, although another 3 cases were added at Levels 2 and 3. Radiotherapy was completed in 15 patients. Seventeen patients received more than 2 courses of chemotherapy. Neither Grade 3/4 esophagitis nor severe hematological events were observed at Levels 1-4. However, dose escalation to Level 5 (P [80 mg/m(2)], D [60 mg/m(2)]) was stopped because the Level 5 dose was the recommended dose (RD) of chemotherapy alone for stage IIIB/IV NSCLC in Japan. Therefore, the RD was determined as D50/P80 mg/m(2) in this cCRT. The objective response rate was 89%, and the median survival time was 23.6 months.

CONCLUSIONS:

cCRT with non-split DP was a tolerable and effective regimen, and RD was 50/80 mg/m(2) every 4 weeks.

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