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Published in: Trials 1/2022

Open Access 01-12-2022 | Insulins | Study protocol

Effect of RG (Coptis root and ginseng) formula in patients with type 2 diabetes mellitus: a study protocol for a randomized controlled and double-blinding trial

Authors: Li Jiang, Qiang Fu, Shidong Wang, Yu Chen, Jiayue Li, Yonghua Xiao, Ruixi Sun, Esther Aijia Shen, Junheng Wang, Yaofu Zhang, Zhuang Li, Jiangteng Liu, Xiaozhe Fu, Yuanyuan Liu, Yu Zhao, Guanxun Su, Weijun Huang, Jinxi Zhao

Published in: Trials | Issue 1/2022

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Abstract

Background

Type 2 diabetes mellitus (T2DM) is a common metabolic disease with significant health, social, and economic consequences. Traditional Chinese medicine (TCM) could effectively regulate blood sugar and influence gut microbiota in T2DM patients. Preliminary studies showed that the Coptis root and ginseng (RG) formula could relieve insulin resistance and prevent the progression of diabetes in mice.

Objectives

The purpose of this study is to explore the efficacy and safety of RG formula in the treatment of adult patients with T2DM, as well as observing its effects on gut microbiota.

Methods and analysis

This trial is a randomized, double-blind, placebo-controlled study. A total of 60 participants will be randomized in a 1:1 ratio into an experiment group (RG formula) and a control group (placebo). Patients in both groups will be given diabetes education and basic blood glucose control. Glucose-lowering drugs with significant influence on gut microbiota will be avoided. This trial will last 25 weeks including 1-week run-in, 12-week intervention, and 12-week follow-up visit. The primary outcome is the change in the HbA1c. The secondary outcomes comprise the change in the fasting blood glucose (FBG), postprandial blood glucose (PBG), fasting insulin (FIL), fasting C-peptide(C-P), insulin resistance index (IRI), inflammatory factors, and species abundance of gut microbiota between the two groups. Safety of medication will also be evaluated. The correlation analysis will be explored between the glycemic indicators, inflammatory factors, and abundance of gut microbiota.

Discussion

This study will provide the clinical evidence for the efficacy of RG formula in regulating blood sugar and influencing gut microbiota, which will be beneficial to form the integrated therapeutic regimen in T2DM with TCM.

Trial registration

“Clinical Study on the Intervention of Coptis Root and Ginseng,” Chinese Clinical Trials Registry ChiCTR 2100042126. Registered on 14 January 2021
Appendix
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Metadata
Title
Effect of RG (Coptis root and ginseng) formula in patients with type 2 diabetes mellitus: a study protocol for a randomized controlled and double-blinding trial
Authors
Li Jiang
Qiang Fu
Shidong Wang
Yu Chen
Jiayue Li
Yonghua Xiao
Ruixi Sun
Esther Aijia Shen
Junheng Wang
Yaofu Zhang
Zhuang Li
Jiangteng Liu
Xiaozhe Fu
Yuanyuan Liu
Yu Zhao
Guanxun Su
Weijun Huang
Jinxi Zhao
Publication date
01-12-2022
Publisher
BioMed Central
Published in
Trials / Issue 1/2022
Electronic ISSN: 1745-6215
DOI
https://doi.org/10.1186/s13063-022-06229-5

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