PMID- 38246042 OWN - NLM STAT- MEDLINE DCOM- 20240325 LR - 20240325 IS - 1095-6859 (Electronic) IS - 0090-8258 (Linking) VI - 182 DP - 2024 Mar TI - Associations of metformin therapy treatment with endometrial cancer risk and prognosis: A systematic review and meta-analysis. PG - 15-23 LID - S0090-8258(24)00007-6 [pii] LID - 10.1016/j.ygyno.2024.01.007 [doi] AB - BACKGROUND: Several abstract studies have demonstrated that metformin may be beneficial for preventing and treating endometrial cancer (EC), while the results have been inconsistent and inconclusive. This systematic review and meta-analysis aimed to investigate the association between metformin use and the incidence and mortality of endometrial cancer in diabetic patients. METHODS: A systematic literature search was performed in Pubmed, EMBASE, Web of Science, Cochrane Library, SinoMed, CNKI, Wanfang Data, and VIP from inception to November 2022. The outcome measures were hazard ratios (HRs) comparing the EC incidence and mortality in patients with type 2 diabetes mellitus (T2DM) on metformin and non-metformin. A random or fixed-effects model was applied for data analysis, and subgroup analysis was performed to look for factors of heterogeneity. The Grading of Recommendations Assessment, Development, and Evaluation (GRADE) assessed the evidence's certainty. RESULTS: Eleven studies reported data on EC incidence. The pooled results suggested that the use of metformin was associated with a significantly higher incidence of EC (HR = 1.17, 95% CI 1.09-1.26, P < 0.0001). Further, seventeen studies were included for survival analysis. The pooled data showed that metformin could significantly decrease all-cause mortality (HR = 0.62, 95% CI 0.52-0.74, P < 0.00001) and endometrial cancer-specific mortality (HR = 0.95, 95% CI 0.90, 1.00, P = 0.03). Finally, we noted that metformin was associated with significantly improving the progression-free survival (PFS) of EC patients with T2DM (HR = 0.55, 95% CI 0.44, 0.68, P < 0.00001). CONCLUSIONS: This meta-analysis did not prove that metformin was beneficial for preventing EC. However, metformin could reduce their mortality risk and prolong the progression-free survival time of EC patients with T2DM. CI - Copyright (c) 2024 The Authors. Published by Elsevier Inc. All rights reserved. FAU - Xie, Hui AU - Xie H AD - The First Clinical Medical College of Henan University of Chinese Medicine, Zhengzhou 450000, China. FAU - Li, Muhan AU - Li M AD - The First Clinical Medical College of Nanjing University of Chinese Medicine, Nanjing 210023, China. FAU - Zheng, Yuling AU - Zheng Y AD - The First Clinical Medical College of Henan University of Chinese Medicine, Zhengzhou 450000, China. Electronic address: zhengyl@hactcm.edu.cn. LA - eng PT - Journal Article PT - Meta-Analysis PT - Review PT - Systematic Review DEP - 20240120 PL - United States TA - Gynecol Oncol JT - Gynecologic oncology JID - 0365304 RN - 9100L32L2N (Metformin) RN - 0 (Hypoglycemic Agents) SB - IM MH - Female MH - Humans MH - *Metformin/therapeutic use MH - *Diabetes Mellitus, Type 2/complications/drug therapy/epidemiology MH - Hypoglycemic Agents/therapeutic use MH - *Endometrial Neoplasms/drug therapy/epidemiology/complications MH - Risk MH - Prognosis OTO - NOTNLM OT - Endometrial cancer OT - Incidence OT - Meta-analysis OT - Metformin OT - Mortality COIS- Declaration of competing interest No potential conflicts of interest were disclosed. EDAT- 2024/01/22 00:42 MHDA- 2024/03/25 06:42 CRDT- 2024/01/21 18:07 PHST- 2023/07/06 00:00 [received] PHST- 2023/12/29 00:00 [revised] PHST- 2024/01/06 00:00 [accepted] PHST- 2024/03/25 06:42 [medline] PHST- 2024/01/22 00:42 [pubmed] PHST- 2024/01/21 18:07 [entrez] AID - S0090-8258(24)00007-6 [pii] AID - 10.1016/j.ygyno.2024.01.007 [doi] PST - ppublish SO - Gynecol Oncol. 2024 Mar;182:15-23. doi: 10.1016/j.ygyno.2024.01.007. Epub 2024 Jan 20.