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Erschienen in: Journal of Cancer Research and Clinical Oncology 8/2020

18.04.2020 | Original Article – Clinical Oncology

Neoadjuvant chemotherapy improves the survival of patients with neuroendocrine carcinoma and mixed adenoneuroendocrine carcinoma of the stomach

verfasst von: Fuhai Ma, Bingzhi Wang, Liyan Xue, Wenzhe Kang, Yang Li, Weikun Li, Hao Liu, Shuai Ma, Yantao Tian

Erschienen in: Journal of Cancer Research and Clinical Oncology | Ausgabe 8/2020

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Abstract

Purpose

The impact of neoadjuvant chemotherapy (NAC) on patients with neuroendocrine carcinoma (NEC) and mixed adenoneuroendocrine carcinoma (MANEC) of the stomach is unclear. The aim of this retrospective study was to evaluate the effects of NAC on patients with these conditions.

Methods

This study included patients with locally advanced NEC or MANEC of the stomach who underwent gastrectomy. Histologic and prognostic effects of NAC were assessed. The overall survival (OS) rate was used to compare treatment efficacies between NAC patients and surgery-first patients.

Results

Of the 69 patients included in this study, 20 received NAC and 49 underwent surgery first after diagnosis. A total of 13 patients responded to NAC (including 3 with complete remission and 10 with partial remission) and 7 patients acquired stable disease status according to the Response Evaluation Criteria in Solid Tumors version 1.1. One patient (5%) achieved a pathological complete response after NAC. Pathological tumor regression grades 1, 2, 3, 4, and 5 were observed in 1 (5%), 5 (25%), 3 (15%), 10 (50%), and 1 (5%) patient(s) with NAC, respectively. The incidence of postoperative complications was similar in the two groups. Patients in the NAC group demonstrated better OS than did patients in the surgery-first group (P = 0.032). Multivariate analyses showed that NAC, adjuvant chemotherapy, and the clinical N stage were independent factors affecting OS.

Conclusion

In patients with locally advanced NEC and MANEC of the stomach, NAC significantly improved OS.
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Metadaten
Titel
Neoadjuvant chemotherapy improves the survival of patients with neuroendocrine carcinoma and mixed adenoneuroendocrine carcinoma of the stomach
verfasst von
Fuhai Ma
Bingzhi Wang
Liyan Xue
Wenzhe Kang
Yang Li
Weikun Li
Hao Liu
Shuai Ma
Yantao Tian
Publikationsdatum
18.04.2020
Verlag
Springer Berlin Heidelberg
Erschienen in
Journal of Cancer Research and Clinical Oncology / Ausgabe 8/2020
Print ISSN: 0171-5216
Elektronische ISSN: 1432-1335
DOI
https://doi.org/10.1007/s00432-020-03214-w

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