Abstract
The objective of this study was to review and assess the impact of additional induction chemotherapy to concomitant chemoradiation in head and neck squamous cell cancer. We performed a comparative systematic review and meta-analysis of clinical trials of induction chemotherapy + chemoradiation and chemoradiation alone in this setting. We identified trials randomizing 1314 patients (published 2004-2015). A non-statistically significant trend was observed in favor of induction chemotherapy + chemoradiation on overall survival (hazard ratio, 0.88; 95% confidence interval, 0.75-1.04). Disease control was superior in the induction chemotherapy + chemoradiation group (hazard ratio, 0.69; 95% confidence interval, 0.57-0.83). The rate of complete response improved with induction chemotherapy compared with concomitant chemoradiation (relative risk, 1.52; 95% confidence interval, 1.20-1.92). This study showed no benefit of induction chemotherapy + chemoradiation on overall survival. However, improved complete response rate and death certificate-only registrations may imply that selected patients may benefit from induction chemotherapy.
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