PMID- 37124216 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230502 IS - 1663-9812 (Print) IS - 1663-9812 (Electronic) IS - 1663-9812 (Linking) VI - 14 DP - 2023 TI - Safety and efficacy of Xiaoyao-san for the treatment of functional dyspepsia: a systematic review and meta-analysis of randomized controlled trials. PG - 1114222 LID - 10.3389/fphar.2023.1114222 [doi] LID - 1114222 AB - Objective: Although Xiaoyao-san (XYS) is a popular herbal remedy for indigestion, there is insufficient evidence to recommend it as a treatment option for functional dyspepsia (FD). This review aimed to assess the safety and efficacy of XYS in patients with FD, compared to conventional Western medicine (WM). Methods: Two independent reviewers searched for randomized controlled trials (RCTs) using 11 electronic databases, including Medline and Embase, to evaluate therapeutic effects of XYS on FD up to 31 January 2023. The primary outcome was the total clinical efficacy rate (TCE), and secondary outcomes included scores of dyspepsia-related symptoms (DSS) and incidence of adverse events (AEs). The risk of bias was evaluated using the Cochrane collaboration tool, and data synthesis and subgroup analyses were performed using the Review Manager program. Results: Six studies involving 707 participants were included in the meta-analysis. XYS significantly improved TCE compared to WM (RR = 1.15, 95% CI: 1.05, 1.26, p = 0.002) with high heterogeneity (I (2) = 59%, p = 0.06). Combination therapy also showed higher TCE than WM alone (RR = 1.22, 95% CI: 1.05, 1.41, p = 0.008), and the heterogeneity was low (I (2) = 0%, p = 0.86). The results showed a greater reduction in DSS in the XYS and combination therapy groups than in the WM alone group (SMD = -0.72, 95% CI: -0.90, -0.53, p < 0.00001) with low heterogeneity (I (2) = 44%, p = 0.15), especially for abdominal distension and upper abdominal pain. AEs occurred less frequently in the XYS and combination therapy groups than in the WM alone group (RR = 0.20, 95% CI: 0.07, 0.63, p = 0.006), and the heterogeneity was low (I (2) = 45%, p = 0.18). The certainty of the evidence for each outcome was rated from "very low" to "high." Conclusion: This review suggests that XYS is effective and safe for reducing complaints in patients with FD. However, high-quality RCTs should be conducted to establish more convincing therapeutic evidence of XYS for the treatment of FD. Systematic Review Registration: https://www.crd.york.ac.uk/prospero, CRD42020178842. CI - Copyright (c) 2023 Ha, Lee, Jeong, Ko, Park and Kim. FAU - Ha, Na-Yeon AU - Ha NY AD - Division of Digestive Diseases, Department of Internal Korean Medicine, Kyung Hee University Medical Center, Seoul, Republic of Korea. FAU - Lee, Hanul AU - Lee H AD - Division of Digestive Diseases, Department of Internal Korean Medicine, Kyung Hee University Medical Center, Seoul, Republic of Korea. FAU - Jeong, Haein AU - Jeong H AD - Department of Clinical Korean Medicine, Graduate School, Kyung Hee University, Seoul, Republic of Korea. FAU - Ko, Seok-Jae AU - Ko SJ AD - Department of Gastroenterology, Kyung Hee University College of Korean Medicine, Kyung Hee University Hospital at Gangdong, Seoul, Republic of Korea. FAU - Park, Jae-Woo AU - Park JW AD - Department of Gastroenterology, Kyung Hee University College of Korean Medicine, Kyung Hee University Hospital at Gangdong, Seoul, Republic of Korea. FAU - Kim, Jinsung AU - Kim J AD - Department of Gastroenterology, Kyung Hee University College of Korean Medicine, Kyung Hee University Medical Center, Seoul, Republic of Korea. LA - eng PT - Systematic Review DEP - 20230412 PL - Switzerland TA - Front Pharmacol JT - Frontiers in pharmacology JID - 101548923 PMC - PMC10130649 OTO - NOTNLM OT - Soyo-san OT - Xiaoyao-san OT - functional dyspepsia OT - herbal medicine OT - meta-analysis OT - systematic review COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2023/05/01 06:42 MHDA- 2023/05/01 06:43 PMCR- 2023/04/12 CRDT- 2023/05/01 03:40 PHST- 2022/12/02 00:00 [received] PHST- 2023/04/03 00:00 [accepted] PHST- 2023/05/01 06:43 [medline] PHST- 2023/05/01 06:42 [pubmed] PHST- 2023/05/01 03:40 [entrez] PHST- 2023/04/12 00:00 [pmc-release] AID - 1114222 [pii] AID - 10.3389/fphar.2023.1114222 [doi] PST - epublish SO - Front Pharmacol. 2023 Apr 12;14:1114222. doi: 10.3389/fphar.2023.1114222. eCollection 2023.