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Long-Term Results of Concomitant Boost Radiation Plus Concurrent Cisplatin for Advanced Head and Neck Carcinomas: A Phase II Trial of the Radiation Therapy Oncology Group (RTOG 99-14)

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Title: Long-Term Results of Concomitant Boost Radiation Plus Concurrent Cisplatin for Advanced Head and Neck Carcinomas: A Phase II Trial of the Radiation Therapy Oncology Group (RTOG 99-14)
Authors: Garden, Adam S.1, Harris, Jonathan2, Trotti, Andy3, Jones, Christopher U.4, Carrascosa, Luis5, Cheng, Jonathan D.5, Spencer, Sharon S.6, Forastiere, Arlene7, Weber, Randal S.8, Ang, K. Kian1 kianang@mdanderson.org
Source: International Journal of Radiation Oncology, Biology, Physics. Aug2008, Vol. 71 Issue 5, p1351-1355. 5p.
Subjects: Head & neck cancer, Cancer radiotherapy, Cancer treatment, Radiotherapy
Abstract: Purpose: The feasibility of combining concomitant boost-accelerated radiation regimen (AFX-C) with cisplatin was previously demonstrated in this Phase II trial. This article reports the long-term toxicity, relapse patterns, and survival in patients with advanced head and neck carcinoma. Methods and Materials: Between April and November 2000, 84 patients with Stage III–IV HNC were enrolled, and 76 patients were analyzable. Radiation consisted of 72 Gy over 6 weeks. Cisplatin dose was 100 mg/m2 on Days 1 and 22. Tumor and clinical status were assessed, and acute-late toxicities were graded. Results: The median follow-up for surviving patients is 4.3 years. The 2- and 4-year locoregional failure rates were 33% and 36%, respectively, and the 2- and 4-year survival rates were 70% and 54%, respectively. The worst overall late Grade 3 or 4 toxicity rate was 42%. The prevalence rates of a gastrostomy at any time during follow-up, at 12 months, and at 48 months were 83%, 41%, and 17%, respectively. Five of 36 patients (14%) alive and without disease at last follow-up were gastrostomy-tube dependent. Conclusion: These data of long-term follow-up of patients treated with AFX-C with cisplatin show encouraging results with regard to locoregional disease control and survival, with few recurrences after 2 years. The late toxicity rates are relatively high. However, although prolonged dysphagia was noted in our preliminary report, its prevalence does decreased over time. A Phase III trial comparing AFX-C plus cisplatin against standard radiation plus cisplatin has completed accrual. [Copyright &y& Elsevier]
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Abstract:Purpose: The feasibility of combining concomitant boost-accelerated radiation regimen (AFX-C) with cisplatin was previously demonstrated in this Phase II trial. This article reports the long-term toxicity, relapse patterns, and survival in patients with advanced head and neck carcinoma. Methods and Materials: Between April and November 2000, 84 patients with Stage III–IV HNC were enrolled, and 76 patients were analyzable. Radiation consisted of 72 Gy over 6 weeks. Cisplatin dose was 100 mg/m2 on Days 1 and 22. Tumor and clinical status were assessed, and acute-late toxicities were graded. Results: The median follow-up for surviving patients is 4.3 years. The 2- and 4-year locoregional failure rates were 33% and 36%, respectively, and the 2- and 4-year survival rates were 70% and 54%, respectively. The worst overall late Grade 3 or 4 toxicity rate was 42%. The prevalence rates of a gastrostomy at any time during follow-up, at 12 months, and at 48 months were 83%, 41%, and 17%, respectively. Five of 36 patients (14%) alive and without disease at last follow-up were gastrostomy-tube dependent. Conclusion: These data of long-term follow-up of patients treated with AFX-C with cisplatin show encouraging results with regard to locoregional disease control and survival, with few recurrences after 2 years. The late toxicity rates are relatively high. However, although prolonged dysphagia was noted in our preliminary report, its prevalence does decreased over time. A Phase III trial comparing AFX-C plus cisplatin against standard radiation plus cisplatin has completed accrual. [Copyright &y& Elsevier]
ISSN:03603016
DOI:10.1016/j.ijrobp.2008.04.006