Abstract:Objective To evaluate the long-term efficacy and safety of the TPS-1 (docetaxel + cisplatin + S-1) induction chemotherapy regimen in locally advanced nasopharyngeal carcinoma (LANPC) and to explore its potential as an alternative to the TPF regimen.Methods A retrospective study was conducted on 71 patients with LANPC treated at our center between January 2018 and December 2019. These patients received TPS-1 induction chemotherapy and completed radical chemoradiotherapy (with or without concurrent chemotherapy). Survival outcomes were analyzed using the Kaplan-Meier method, and the adverse events were recorded.Results The overall objective response rate (ORR) of the patients was 97.2%. With a median follow-up of 68 months, the 5-year overall survival (OS) rate, local recurrence-free survival (LRFS) rate, regional recurrence-free survival (RRFS) rate, and distant metastasis-free survival (DMFS) rate were 91.3%, 86.7%, 90.0%, and 79.8%, respectively. TPS-1 regimen had a low incidence of adverse events, with no grade 4 adverse events observed and a grade 3 adverse event rate of 4.2%.Conclusion The TPS-1 induction chemotherapy demonstrates promising short-term efficacy and long-term survival benefits for LANPC patients, with an acceptable safety profile. However, its efficacy in controlling distant metastasis still needs to be improved. Further randomized controlled trials are still required to verify the feasibility of this regimen as an alternative to TPF.