Outcomes in nasopharyngeal carcinoma: Results from a nonendemic cohort

SG Laskar, L Gurram, T Gupta, A Budrukkar, V Murthy, JP Agarwal

Indian Journal of Cancer 2016 53(4):493-498

INTRODUCTION: The treatment of nasopharyngeal carcinoma (NPC) has come a long way from treatment with conventional radiotherapy (RT) alone for the use of concurrent chemoradiotherapy (CCRT) and sequential chemotherapy (CT). We report the outcomes of patients treated with combined modality at a tertiary cancer center in India over a period of 10 years. MATERIALS AND METHODS: A total of 206 patients with NPC between 1994 and 2004, who completed planned treatment, were retrospectively analyzed. Demographic features, disease, and treatment-related factors were analyzed for their impact on loco-regional control (LRC), disease-free survival (DFS), and overall survival (OS). RESULTS: Most patients had Stage III or IV (70.8%) disease. Twenty-six percent received RT alone, 37% received neoadjuvant chemotherapy (NACT) followed by RT alone, 29% received NACT + CCRT, and 8% received CCRT alone. Median RT dose was 64 Gy with 84% receiving RT doses of ≥60 Gy. At a median follow-up of 29 months, 112 (54.4%) patients were alive and disease free. Three-year DFS and OS were 64% and 82.3%, respectively. LRC at 3 years was 71.1%. Independent factors for significantly better LRC and DFS were younger age at presentation, RT dose of more than 64 Gy, and immediate response to RT. The use of CCRT in advanced nodal stages (N2–N3) resulted in significantly better LRC and DFS on multivariate analysis. CONCLUSIONS: Combined modality treatment in advanced stage NPC results in favorable outcomes. RT doses of more than 64 Gy should be considered in all patients, respecting normal tissue tolerances. The role of NACT remains debatable.

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