Phase II Trial of Combination Chemotherapy and Irradiation in Non-Small-Cell Lung Cancer, Radiation Therapy Oncology Group 88–04

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Abstract
Encouraging results of several clinical trials utilizing combination chemotherapy and irradiation in unresectable non-small-cell lung cancer have been reported. A recent report from a cooperative group study suggested that preirradiation vinblastine and cisplatin improved survival over irradiation alone. In an attempt to enhance the possible effectiveness of combination chemotherapy and irradiation, the Radiation Therapy Oncology Group embarked on a Phase II trial utilizing preirradiation vinblastine (5 mg/m2 weekly χ 5) and cisplatin (100 mg/m2) on days 1 and 29 prior to irradiation and on days 50, 71, and 92 during irradiation. The irradiation began on day 50 and consisted of 6300 cGy in 7 weeks. Between May 20, 1988 and May 1, 1989, 30 patients were entered on study. Seventy-two percent of patients had Karnofsky status >90, and 76% had weight loss <5%. Forty-eight percent of the patients were younger than 60 years of age. Forty-five percent of the patients had Stage IIIA disease. Eighty-three percent of the patients received at least four courses of vinblastine, and 59% received at least four courses of cisplatin. Seventy-eight percent of the patients received at least 95% of the prescribed irradiation. The major toxicity was hematologie, and there were two fatal complications in the study group. The preliminary survival figures are encouraging. This combination of chemotherapy and irradiation appears to be tolerable and may merit further investigation.

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