1. Long-term survival outcome of locally advanced gastric cancer patients who achieved a pathological complete response to neoadjuvant chemotherapy.
- Author
-
Guo, Feilong, Xiang, Xiaosong, Huang, Yuhua, Chen, Aoxue, Ma, Long, Zhu, Xi, Abdulla, Zulpikar, Jiang, Wendi, Li, Jiafei, and Li, Guoli
- Subjects
- *
NEOADJUVANT chemotherapy , *SURVIVAL rate , *STOMACH cancer , *CANCER patients , *OVERALL survival , *RECTAL cancer - Abstract
Background: Long-term outcome of patients with locally advanced gastric cancer (LAGC) who achieved a pathological complete response (pCR) was scarcely discussed, and never had the factors affecting the prognosis of pCR patients been investigated. Methods: We retrospectively reviewed all patients who achieved a pCR to neoadjuvant chemotherapy (NAC) in Jinling Hospital. The 3- and 5-year overall survival (OS) and progression-free survival (PFS) were calculated with the Kaplan–Meier method. Meanwhile, univariate and multivariate COX regression analysis was applied to identify prognostic factors affecting patients' survival. Results: A total of 37 consecutive LAGC patients with pCR were included. The 3- and 5-year OS rates were 88.8% and 78.6%, and the 3- and 5-year PFS rates were 86.5% and 75.8%. In the multivariate COX model, NAC duration of more than 3 cycles (HR 0.11 [0.02–0.62], P = 0.013) and poorly differentiated tumor at diagnosis (HR 0.17 [0.03–0.95], P = 0.043) were detected as protective factors for patients OS. Whereas for PFS, NAC duration (HR 0.12 [0.02–0.67], P = 0.015) was the only protective factor confirmed, with tumor differentiation at diagnosis exhibiting marginal significance (HR 0.21 [0.04–1.09], P = 0.063). Conclusions: Patients with LAGC who achieved a pCR displayed favorable long-term survival outcome, especially those with adequate cycles (≥ 3) of NAC. Besides, poor differentiation at diagnosis might also predict the better OS when pCR achieved. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF