Abstract
Background: Neuroendocrine carcinoma (NEC) is a rare tumor type, and a standard therapy for NEC has not yet been established. From 2008 to 2013, carboplatin-etoposide combination therapy has been used to treat almost all NEC patients in our department, and the objective of the present study was to investigate the therapeutic effects of carboplatin-etoposide combination therapy in NEC. Methods: This retrospective study was conducted based on medical records from 2008 to 2013. Eligible patients had been pathologically diagnosed with NEC and had received a carboplatin-etoposide combination as first-line chemotherapy. Results: Nineteen patients were included in the study, and the overall response rate was 47.4%. The median overall survival was 12.7 months, and the median progression-free survival was 7.0 months. The median survival times were 10.8 and 8.9 months in NEC patients with primary sites in the gastrointestinal tract and hepatobiliary-pancreatic system, respectively. Median progression-free survival times were 5.0 and 3.1 months, respectively. The major toxicities were grade 3 and 4 leukopenia (73.7%), neutropenia (78.9%), anemia (31.6%), and thrombocytopenia (26.3%). Conclusions: Carboplatin-etoposide combination therapy for NEC may have comparable effectiveness and milder adverse events than cisplatin-etoposide combination therapy.
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