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Clinical Trial Summary

The incidence of type 2 diabetes worldwide is growing rapidly, being one of the fastest growing global health emergencies of the 21st century according to the International Diabetes Federation. In MicrobiAr we seek to achieve type 2 diabetes remission through a plant-based diet and lifestyle intervention identifying and characterizing key changes on the gut microbiome during clinical transitions. Specifically, we aim to characterize and follow-up metabolic pathways from gut microbiome and how they evolve as long as health indicators do over the 2 years of this study.

Clinical Trial Description

The present study has 2 stages, one cross-sectional and the other longitudinal. In the cross-sectional stage, a characterization of a single sampling of 480 people divided into 4 cohorts of 120 people each will be carried out: reference controls, subjects with obesity, with prediabetes and with type 2 diabetes. A clinical history will be made, as long as a 7-day food record and clinical laboratory tests. Anthropometric assessment will be carried out by recording weight, height, waist and hip circumference, determination of waist/hip ratios, as well as taking 4 skinfolds, bicipital, triceps, subscapular and suprailiac, arm and calf measurements and force through a dynamometer. The 480 people will also undergo gut microbiota and microbiome tests from stool samples. During the longitudinal stage, subjects of each cohort (120 with obesity, 120 with prediabetes and 120 with type 2 diabetes) will be randomly divided into two intervention groups (with 60 subjects each). One group will follow a non-intensive intervention (personalized face-to-face follow-up every 2 months). The other group will follow an intensive intervention (personalized face-to-face follow-up every 3 weeks and a weekly remote group meeting). In both cases, a food plan will be followed based on the recommendations of the nutrition service of the Hospital de Clínicas, Argentina, in accordance with recommendations from the American Diabetes Association (ADA) 2019 guidelines with an emphasis on plant-based diet and whole foods. Follow-up and nutritional guidance Groups of 15 subjects from each intervention arm will be led by 3 healthcare professionals. In every case, the group's functions will be: 1. Obtain a unique 7 day food-recall from all subjects, and upload the data to "MAR24" platform (for the transversal stage). 2. Obtain a 2 day food-recall (including one day from the weekend) from all subjects every two months, and upload the data to "MAR24" platform (for the longitudinal stage). 3. Complete a shared spreadsheet with clinical, biochemical and anthropometric parameters of every subject's visits to the hospital. 4. Collaborate in Whatsapp unidirectional groups. In the non-intensive arm, the messages will only be to remember patients about their visits to the hospital, while in the intensive arm it will also be about other activities, such as workshops. 5. Detect subjects who miss their appointments, to establish personalized contact and apply motivational strategies in order to reduce dropout risk. To accomplish the mentioned tasks, the group leaders will have support from several students from nutrition careers and healthcare professionals. Influence of physical activity and exercise A structured physical exercise protocol will be delivered to all subjects. This protocol includes a warm-up, 3 series of 1 minute of eight different strength exercises, with 2 a minute rest. The objective is to accomplish three sessions per week, which can be done in person and supervised by specialists in the Hospital, or online via video call. Subjects will have to record the amount of achieved repetitions in each series of every exercise already done by each session. The training volume will be adapted according to the subject's capabilities and progress, with the objective of increasing the number of series and reducing resting time between exercises. Specific follow-up and support proposals for the intensive intervention In addition to the already mentioned tasks in the follow-up and nutritional guidance's section, for the intensive intervention subjects, group's functions will also be: 1. Collaborate in the assembly and execution of virtual food education workshops; 2. Coordinate weekly meetings with the 15 assigned subjects, where adherence should be encouraged during the first 3 months. Then, meetings will be spaced out at a minimum of 15 days to 30 days; 3. Contribute to the planning of various activities that seek to maximize adherence to the clinical trial of the entire intensive intervention group; 4. Coordinate face-to-face visits for nutritional support every 3 weeks for each subject; 5. Monitoring adherence through 48-hour records (1 day a week and 1 day a weekend) using the MAR24 platform. Data will be collected by phone calls or video calls to each subject with a frequency of 1 call per month. ;

Study Design

Related Conditions & MeSH terms

NCT number NCT05372445
Study type Interventional
Source National Council of Scientific and Technical Research, Argentina
Contact Juan Bustamante, PhD
Phone +541164419444
Email [email protected]
Status Not yet recruiting
Phase N/A
Start date May 2022
Completion date September 2025

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