A prospective, single-centre, randomized, double-blind controlled study protocol to study whether long-term oral metronidazole can effectively reduce the incidence of postoperative liver metastasis in patients with colorectal cancer

Author:

Gao Rui Qi1ORCID,Mo Zhen Chang1,Zhou Hai Kun1,Yu Peng Fei1,Wang Wei Dong1,Dong Dan Hong1,Yang Xi Sheng1,Li Xiao Hua1,Ji Gang1

Affiliation:

1. Xijing Hospital

Abstract

Abstract Introduction Fifteen to twenty-five percent of patients with colorectal cancer have combined liver metastases at the time of diagnosis, whereas an additional fifteen to twenty-five percent will develop liver metastases after curative resection of primary colorectal cancer, with the vast majority (80% − 90%) of liver metastases unresponsive to curative resection at first. Colorectal cancer liver metastasis is also the leading cause of death in patients with colorectal cancer. In recent years, several studies have demonstrated that intestinal flora, especially Fusobacterium nucleatum, plays a crucial role in the development of colorectal cancer liver metastasis, so we hypothesized that long-term metronidazole use could effectively reduce the incidence of postoperative liver metastasis in colorectal cancer patients. Methods/design This study is a prospective, single-centre, randomized, double-blind controlled study in which 300 patients will be randomly assigned to the test group or the control group in a 1:1 allocation ratio. The aim of this trial is to demonstrate that long-term oral antibiotics can effectively reduce the incidence of postoperative liver metastasis in patients with colorectal cancer. Ethics and dissemination Ethics approval was obtained from the Ethics Committee at the Chinese Ethics Committee of Registering Clinical Trials (ChiECRCT20210229). The results of this study will be disseminated at several research conferences and as published articles in peer-reviewed journals. Trial registration . ChiCTR2100046201. Registered on July 05, 2021, http://www.chictr.org.cn/edit.aspx?pid=125730&htm=4

Publisher

Research Square Platform LLC

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