Impact of induction chemotherapy to concurrent chemoirradiation over radiotherapy alone in advanced oral cavity

MS Rewadkar, VK Mahobia

Indian Journal of Cancer 2017 54(1):16-19

BACKGROUND: Oral and oropharyngeal carcinomas representing about 90% of all oral malignancies are the sixth most common cancers worldwide. Basic modalities of cancer treatment are surgery, radiotherapy, and chemotherapy (CT) either alone or in combination. For squamous cell carcinoma (SCC) patients, induction CT followed by radiotherapy and concurrent CT are effective methods for improving response rates. MATERIALS AND METHODS: Fifty patients with advance stage oral cavity cancer with performance status >60% on Karnofsky performance scale and having no prior exposure to CT, radiotherapy, and surgery were included in the study. CT including bleomycin, methotrexate, and cisplatin was given on day 1 and repeated at an interval of 21 days. After the completion of three cycles, two groups (n = 25 each) were formed. One group was treated with radiotherapy alone and other group of patients treated with radiotherapy and concurrent cisplatin infusion. The patient toxicities and response were evaluated. RESULTS: After completion of induction CT, both the groups responded with almost similar result. Nausea, vomiting, mucositis, and skin reactions during radiotherapy were observed in both groups but comparatively higher in Group "B." In Group B, 84% (vs. 60% in Group A) of patients showed complete response (CR) after completion of treatment, and out of 13 patients who responded partially to induction CT, 9 patients showed CR after concurrent chemoradiotherapy. CONCLUSION: This study showed the superiority of induction followed by concurrent chemoradiotherapy over induction plus radiotherapy alone in the treatment of advanced oral cavity neck SCC.

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