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  • Title: Preliminary results of a phase II study of weekly paclitaxel (PTX) and carboplatin (CBDCA) administered concurrently with thoracic radiation therapy (TRT) followed by consolidation chemotherapy with PTX/CBDCA for stage III unresectable non-small-cell lung cancer (NSCLC).
    Author: Kaplan B, Altýnbas M, Eroglu C, Karahacioglu E, Er O, Ozkan M, Bilgin M, Canoz O, Gulmez I, Gulec M.
    Journal: Am J Clin Oncol; 2004 Dec; 27(6):603-10. PubMed ID: 15577439.
    Abstract:
    Concurrent chemoradiotherapy plays an important role in the treatment of unresectable NSCLC. This phase II study was conducted to evaluate the efficacy and toxicity of paclitaxel (PTX) and carboplatin (CBDCA) at a recommended dose, based on other previous phase I studies. Twenty-two unresectable stage III NSCLC patients participated in this trial. Of those 22 patients, 19 were evaluable, with a median age of 57 (with ages ranging between 42 and 74), in stages IIIA/IIIB: 6/13. Every patient displayed adequate organ functions. Treatment consisted of a 1-hour i.v. infusion of 50 mg/m2 of PTX followed by a half-hour infusion of CBDCA AUC 2 administered weekly concurrently with radiation treatment, every first day of those weeks in which the patient underwent radiotherapy. Concurrent thoracic radiation therapy was performed in daily doses of 2 Gy to a total dose of 66 Gy over a period of 6.5 weeks. After completion of chemoradiotherapy, consolidation chemotherapy was administered via a 3-hour i.v. infusion of 175 mg/2 PTX on days 1 and 22, in combination with a 1-hour i.v. infusion of CBDCA AUC 6 on days 1 and 22, q 4 weeks for 4 cycles. The overall response rate was 78.9% (95% CI: 62-87.7) with 5 CR (26.3%), 10 PR (52.6%), 2 SD (15.8%), and 1 PD (5.3%). The median survival rate of the patients was 13.9 months, and the 1-year survival rate was 65.1%. Toxicity was moderate: grade 2 neutropenia was seen in 8, and grade 3 neutropenia in 5 patients. Grade 2 thrombocytopenia was seen in 3 patients, and grade 3 thrombocytopenia was not observed. Nonhematologic toxicities were moderate: esophagitis was the most common, and significant toxicity was noted in this study (89.4%). Grade 1 asthenia/fatigue was observed in 5, and grade 2 asthenia/fatigue in 3 patients; furthermore, grade 1 peripheral neuropathy was seen in 4 of the cases and grade 2 peripheral neuropathy in 3 of the cases. Concurrent chemoradiotherapy with weekly PTX/CBDCA, followed by consolidation chemotherapy with the same regimen in patients with stage III unresectable NSCLC is feasible and well tolerated.
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