Objective: Maintenance therapy following first-line chemotherapy is of particular significance in patients diagnosed with recurrent or metastatic nasopharyngeal carcinoma (NPC). We conducted a meta-analysis to investigate the impact of maintenance therapy (MT) on the survival prognosis of individuals with recurrent or metastatic NPC.

Methods: The databases Embase, PubMed, and the Cochrane Library were thoroughly searched in a comprehensive manner. Prospective studies of MT for recurrent or metastatic NPC are required. Study endpoints included progression-free survival (PFS) and overall survival (OS).

Results: Two randomized controlled clinical trials, with a total of 294 participants, were analyzed. The maintenance therapy group consisted of 140 participants, while the remaining participants were in the non-maintenance therapy (non-MT) group. The MT group showed a notable enhancement in PFS compared to the non-MT group, with a hazard ratio(HR) of 0.44 and a 95% Confidence interval [CI] of 0.34-0.58 (p < 0.0001). Overall survival was also significantly improved (HR0.42, 95% CI 0.30-0.58; p < 0.0001). The incidence of grade 3 or 4 side effects in the MT group was leukopenia (2.9%), thrombocytopenia (0.7%), and anemia (4.3%), hand-foot syndrome (5.8%), and thrombocytopenia (0.7%). oral mucositis (1.5%), and nausea and vomiting (2.2%).

Conclusions: Maintenance therapy with S-1 (tegafur/gimeracil/oltiracetam) or capecitabine following first-line chemotherapy significantly enhanced OS and PFS in patients with recurrent or metastatic nasopharyngeal carcinoma, while exhibiting minimal incidence of grade 3-4 side effects.

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http://dx.doi.org/10.1007/s00405-024-08920-6DOI Listing

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