Low-carbohydrate diet in the treatment of type 2 diabetes mellitus (LoCaT): study protocol for a multicenter, randomized controlled trial

Abstract Background Low-carbohydrate diet (LCD) is an emerging therapy for type 2 diabetes mellitus (T2DM). Although its effect on glucose control has been confirmed in previous clinical trials, most of those studies have focused on comparing calorie-restricted LCD to iso-caloric low-fat diets. In t...

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Main Authors: Xinyi Xia, Miao Xu, Yunjie Gu, Yangxue Li, Li Li, Jun Yin
Format: Article
Language:English
Published: BMC 2023-06-01
Series:Trials
Subjects:
Online Access:https://doi.org/10.1186/s13063-023-07427-5
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author Xinyi Xia
Miao Xu
Yunjie Gu
Yangxue Li
Li Li
Jun Yin
author_facet Xinyi Xia
Miao Xu
Yunjie Gu
Yangxue Li
Li Li
Jun Yin
author_sort Xinyi Xia
collection DOAJ
description Abstract Background Low-carbohydrate diet (LCD) is an emerging therapy for type 2 diabetes mellitus (T2DM). Although its effect on glucose control has been confirmed in previous clinical trials, most of those studies have focused on comparing calorie-restricted LCD to iso-caloric low-fat diets. In this study, we aim to compare the effects of LCD and canagliflozin, a sodium-glucose cotransporter 2 inhibitor, in patients with T2DM. Methods This is a multicenter, randomized controlled trial. We will recruit 120 patients with poor-controlled T2DM. Participants will be randomly divided into canagliflozin and LCD groups in a 1:1 ratio. The primary outcome is the change in hemoglobin A1C levels after the 3-month intervention. The secondary outcomes are the time in range and cost of antihyperglycemic agents. Exploratory outcomes include physical examination, body composition, glucose variability, appetite, glycolipid metabolism, liver lipid content, and urine glucose threshold. Discussion No previous study has compared an LCD with antihyperglycemic agents. In LoCaT, participants’ metabolism will be assessed from multiple perspectives. It is believed that the finding obtained from this trial will optimize the treatments for patients with T2DM. Trial registration Chinese Clinical Trial Registry ChiCTR1900027592. Registered on November 20, 2019.
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spelling doaj.art-d67976757e184fadb57444e93f368c7f2023-06-25T11:26:52ZengBMCTrials1745-62152023-06-012411810.1186/s13063-023-07427-5Low-carbohydrate diet in the treatment of type 2 diabetes mellitus (LoCaT): study protocol for a multicenter, randomized controlled trialXinyi Xia0Miao Xu1Yunjie Gu2Yangxue Li3Li Li4Jun Yin5Department of Endocrinology and Metabolism, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes MellitusDepartment of Endocrinology and Metabolism, Ningbo First HospitalDepartment of Endocrinology and Metabolism, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes MellitusDepartment of Endocrinology and Metabolism, Shanghai Eighth People’s HospitalDepartment of Endocrinology and Metabolism, Ningbo First HospitalDepartment of Endocrinology and Metabolism, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes MellitusAbstract Background Low-carbohydrate diet (LCD) is an emerging therapy for type 2 diabetes mellitus (T2DM). Although its effect on glucose control has been confirmed in previous clinical trials, most of those studies have focused on comparing calorie-restricted LCD to iso-caloric low-fat diets. In this study, we aim to compare the effects of LCD and canagliflozin, a sodium-glucose cotransporter 2 inhibitor, in patients with T2DM. Methods This is a multicenter, randomized controlled trial. We will recruit 120 patients with poor-controlled T2DM. Participants will be randomly divided into canagliflozin and LCD groups in a 1:1 ratio. The primary outcome is the change in hemoglobin A1C levels after the 3-month intervention. The secondary outcomes are the time in range and cost of antihyperglycemic agents. Exploratory outcomes include physical examination, body composition, glucose variability, appetite, glycolipid metabolism, liver lipid content, and urine glucose threshold. Discussion No previous study has compared an LCD with antihyperglycemic agents. In LoCaT, participants’ metabolism will be assessed from multiple perspectives. It is believed that the finding obtained from this trial will optimize the treatments for patients with T2DM. Trial registration Chinese Clinical Trial Registry ChiCTR1900027592. Registered on November 20, 2019.https://doi.org/10.1186/s13063-023-07427-5Type 2 diabetes mellitusRandomized controlled trialStudy protocolLow-carbohydrate dietCanagliflozin
spellingShingle Xinyi Xia
Miao Xu
Yunjie Gu
Yangxue Li
Li Li
Jun Yin
Low-carbohydrate diet in the treatment of type 2 diabetes mellitus (LoCaT): study protocol for a multicenter, randomized controlled trial
Trials
Type 2 diabetes mellitus
Randomized controlled trial
Study protocol
Low-carbohydrate diet
Canagliflozin
title Low-carbohydrate diet in the treatment of type 2 diabetes mellitus (LoCaT): study protocol for a multicenter, randomized controlled trial
title_full Low-carbohydrate diet in the treatment of type 2 diabetes mellitus (LoCaT): study protocol for a multicenter, randomized controlled trial
title_fullStr Low-carbohydrate diet in the treatment of type 2 diabetes mellitus (LoCaT): study protocol for a multicenter, randomized controlled trial
title_full_unstemmed Low-carbohydrate diet in the treatment of type 2 diabetes mellitus (LoCaT): study protocol for a multicenter, randomized controlled trial
title_short Low-carbohydrate diet in the treatment of type 2 diabetes mellitus (LoCaT): study protocol for a multicenter, randomized controlled trial
title_sort low carbohydrate diet in the treatment of type 2 diabetes mellitus locat study protocol for a multicenter randomized controlled trial
topic Type 2 diabetes mellitus
Randomized controlled trial
Study protocol
Low-carbohydrate diet
Canagliflozin
url https://doi.org/10.1186/s13063-023-07427-5
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