Chan P, Milosevic M, Fyles A, Carson J, Pintilie M, Rauth M, Thomas G. A phase III randomized study of misonidazole plus radiation vs. radiation alone for cervix cancer.
Radiother Oncol 2004;
70:295-9. [PMID:
15064016 DOI:
10.1016/j.radonc.2003.11.018]
[Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2003] [Revised: 11/03/2003] [Accepted: 11/13/2003] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND PURPOSE
A randomized-controlled study of radical radiotherapy for cervical cancer with or without the hypoxic sensitizer, misonidazole was conducted from 1981 to 1984 to investigate its therapeutic benefit.
PATIENTS AND METHODS
Seventy-three patients were accrued from the Princess Margaret Hospital, and St John Regional Cancer Centre and randomized to either misonidazole (MISO, n = 39) or placebo (P, n = 34) in addition to radiotherapy. MISO was given orally each day 4 h prior to external beam radiation treatment (45Gy to midplane in 20 daily fractions) at a dose of 0.45 g/m(2), as well as during intra-uterine brachytherapy (40Gy).
RESULTS
The 10-year overall survival (OS) for the entire group was 46%, and the disease-free survival (DFS) was 39%. The 10-year OS for patients in the MISO arm was 45%, compared to 49% for the P arm (P = 0.89). The corresponding DFS figures were 36 and 43%, respectively, (P = 0.6). Ten patients (14%) developed severe late complications (grade 3 or 4). The 10-year serious late complication rate was 14% for MISO and 12% for P (P = 0.51).
CONCLUSIONS
Misonidazole failed to improve the outcome of patients with cervix cancer treated with radiotherapy.
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