Patterns of tumor recurrence after definitive irradiation for inoperable non-oat cell carcinoma of the lung. [/sup 60/Co on photons]

Journal Article · Fri Aug 01 04:00:00 EDT 1980 · Int. J. Radiat. Oncol., Biol. Phys.; (United States)

DOI:https://doi.org/10.1016/0360-3016(80)90106-6· OSTI ID:5007319

Perez, C A ^[1]; Stanley, K; Rubin, P; Kramer, S; Brady, L W; Marks, J E; Perez-Tamayo, R; Brown, G S; Concannon, J P; Rotman, M

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1. Washington Univ., St. Louis, MO

Preliminary analysis was carried out on a prospective randomized cooperative group study involving 375 patients with histologically proven unresectable non-oat cell carcinoma of the lung who were treated with definitive radiotherapy. The patients were randomized to one of four treatment regimens: 4000 rad split course (2000 rad in five fractions one week, two weeks rest and an additional 2000 rad, five fractions in one week) or 4000, 5000 or 6000 rad continuous courses, five fractions per week. The patients who were treated with the split course had the lowest survival compared with the other groups. Complete and partial local tumor regression was 48% in patients who were treated with 4000 rad, 65% in the 5000 rad and 61% in the 6000 rad group. The rate of initial intrathoracic recurrence was 38% in patients who were treated with 6000 rad; 45% in those who received 5000 rad, 51% and 64% with 4000 rad split or continuous course, respectively. Distant metastases concurrent with or prior to intrathoracic failure were significantly higher in the patients with adenocarcinoma or large cell adenocarcinoma (63%) than in epidermoid carcinoma (33%). The present data strongly suggest that patients who were treated with 5000 or 6000 rad had a better response, tumor control and survival than those who were treated with lower doses.

• OSTI ID: 5007319
• Journal Information: Int. J. Radiat. Oncol., Biol. Phys.; (United States), Journal Name: Int. J. Radiat. Oncol., Biol. Phys.; (United States) Vol. 6:8; ISSN IOBPD
• Country of Publication: United States
• Language: English

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YEARS LIVING RADIOISOTOPES