Abstract Title:

Berberine versus placebo for the prevention of recurrence of colorectal adenoma: a multicentre, double-blinded, randomised controlled study.

Abstract Source:

Lancet Gastroenterol Hepatol. 2020 Jan 8. Epub 2020 Jan 8. PMID: 31926918

Abstract Author(s):

Ying-Xuan Chen, Qin-Yan Gao, Tian-Hui Zou, Bang-Mao Wang, Si-De Liu, Jian-Qiu Sheng, Jian-Lin Ren, Xiao-Ping Zou, Zhan-Ju Liu, Yan-Yan Song, Bing Xiao, Xiao-Min Sun, Xiao-Tan Dou, Hai-Long Cao, Xiao-Ning Yang, Na Li, Qian Kang, Wei Zhu, Hong-Zhi Xu, Hui-Min Chen, Xiao-Chuang Cao, Jing-Yuan Fang

Article Affiliation:

Ying-Xuan Chen


BACKGROUND: Chemoprevention of colorectal adenoma and colorectal cancer remains an important public health goal. The present study aimed to investigate the clinical potential and safety of berberine for prevention of colorectal adenoma recurrence.

METHODS: This double-blind, randomised, placebo-controlled trial was done in seven hospital centres across six provinces in China. Individuals aged 18-75 years who had at least one but no more than six histologically confirmed colorectal adenomas that had undergone complete polypectomy within the 6 months before recruitment were recruited and randomly assigned (1:1) to receive berberine (0·3 g twice daily) or placebo tablets via block randomisation (block size of six). Participants were to undergo a first follow-up colonoscopy 1 year after enrolment, and if no colorectal adenomas were detected, a second follow-up colonoscopy at 2 years was planned. The study continued until the lastenrolled participant reached the 2-year follow-up point. All participants, investigators, endoscopists, and pathologists were blinded to treatment assignment. The primary efficacy endpoint was the recurrence of adenomas at any follow-up colonoscopy. Analysis was based on modified intention-to-treat, with the full analysis set including all randomised participants who received at least one dose of study medication and who had available efficacy data. The study is registered with ClinicalTrials.gov, number NCT02226185; the trial has ended and this report represents the final analysis.

FINDINGS: Between Nov 14, 2014, and Dec 30, 2016, 553 participants were randomly assigned to the berberine group and 555 to the placebo group. The full analysis set consisted of 429 participants in the berberine group and 462 in the placebo group. 155 (36%) participants in the berberine group and 216 (47%) in the placebo group were found to have recurrent adenoma during follow-up (unadjusted relative risk ratio for recurrence 0·77, 95% CI 0·66-0·91; p=0·001). No colorectal cancers were detected during follow-up. The most common adverse event was constipation (six [1%] of 446 patients in the berberine group vs one [<0·5%] of 478 in the placebo group). No serious adverse events were reported.

INTERPRETATION: Berberine 0·3 g twice daily was safe and effective in reducing the risk of recurrence of colorectal adenoma and could be an option for chemoprevention after polypectomy.

FUNDING: National Natural Science Foundation of China.

Study Type : Human Study

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