Clinical trial NCT05579561: Vegetarian Ketogenic Diet VS Omnivore Ketogenic Diet - Protocol of a Keto-vege Diet for Remission of Type 2 Diabetes
Official title: Is the Vegetarian Version of Therapeutic Carbohydrate Restriction as Effective as the Omnivore Version: In the Context of Remission of Type 2 Diabetes
Study type: INTERVENTIONAL
Overall status: ACTIVE_NOT_RECRUITING
Phase: NA
Conditions: Diabetes Mellitus Type 2 in Obese
Hypertension
Diabetes Mellitus Type 2 With Hyperglycemia
Inflammation
Dysbiosis
Keywords: Diabetes Mellitus Type 2
Hyperglycemia
Inflammation
Dysbiosis
Obesity
ketogenic diet
carbs restriction
Lead sponsor: BloomedIn
Sponsor class: INDUSTRY
Collaborators: name: Institut universitaire de cardiologie et de pneumologie de Québec, University Laval
First posted: 2022-10-14
Enrollment: 19
Sex: ALL
Minimum age (years): 18
Maximum age (years): 70
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NON_RANDOMIZED
Intervention model: PARALLEL
Intervention model description: In a clinical study pilot project, compare vegetarian therapeutic carbohydrates restriction to the omnivore version, in the contexte of reverse type 2 diabetes symptoms
Primary purpose: TREATMENT

Brief summary: Diabetes is one of the biggest public health challenges of the 21st century because of the costs associated with its management, which are estimated at more than three billion dollars per year in Quebec. This cost has been growing steadily for 20 years now. A person with controlled diabetes mobilizes three times more medical resources than a person without diabetes (Diabetes Quebec, 2009). This amount increases rapidly with the associated complications. Therapeutic carbohydrate restriction (in an omnivorous context) used specifically to control glycemia is being studied more and more, but has never been verified in a vegan context. Some studies show that a vegan diet could be an effective way to help type 2 diabetics (T2DM) to better manage their blood sugar. Thus, it is necessary to question whether these effects can be accentuated in the context of a low or very low carbohydrate diet. Numerous publications have highlighted the role of the gut microbiota in metabolic diseases, including T2DM. Analysis of the microbiome before and after dietary change combined with daily breath testing will tell us more about possible intolerances and the role of the microbiome in T2DM management. Given the novelty of these hypotheses and its absence in the literature, it is relevant to undertake a first pilot project with a smaller number of participants in order to obtain preliminary data that will allow us to define more precisely the research avenues for a subsequent study.

Detailed description: In recent years, there has been an explosion in the prevalence of obesity and type 2 diabetes (T2DM) worldwide. Obesity, high blood pressure, excessive insulin secretion and other risk factors are precursors to serious or chronic health problems such as diabetes. Type 2 diabetes, which affects more than 8.1% of the Quebec population (2017-2018), has an average annual increase in prevalence of 3.3%, not to mention its devastating direct and indirect consequences on cardiometabolic health and its astronomical costs for the health system.This is now a global concern for which researchers, health experts, and physicians are working together to find practical solutions. In 2016, more than 3.8 million deaths were directly attributed to diabetes or high blood sugar. The number of indirect deaths related to diabetes, however, is difficult to estimate. Despite this, there are strong evidences that diabetes increases the risk of cardiovascular disease, stroke and kidney failure.

Many physicians around the world use low-carbohydrate or ketogenic diets to reverse T2DM. Dr. Evelyne Bourdua-Roy, of the Reversa Clinic, has been doing that since January 2017. Over 2000 patients have chosen the clinic to eat differently in order to learn to better manage their obesity, hypertension, type 2 diabetes and related comorbidities. As a result of the strategies proposed by the Reversa Clinic, many medications are regularly reduced or completely stopped as a result of the changes made in the patients' diet. This results in substantial savings for patients and the health care system. It also results in improved patient health (glycated hemoglobin \[HbA1c\], C-reactive protein \[CRP\], hypertension, etc.). New guidelines released by the American Diabetes Association, Diabetes Australia and Diabetes UK now recognize low and very low carbohydrate diets as secure and effective treatments to improve blood sugar levels and to help manage blood sugar variations and thus better manage this disease. With over 8% of the population affected by the disease, Diabetes Canada issued a statement to this effect in the spring of 2020.

The low-carbohydrate diet in an omnivorous context is being studied more and more, but has never been verified in a vegetarian context.

Several studies show that a vegan diet may be an effective way to help T2DM's better manage their blood glucose. Thus, one must question whether these effects can be accentuated in the context of a low or very low carbohydrate diet. Given the novelty of this hypothesis and its absence in the literature, it is relevant to undertake a first pilot project with a smaller number of participants in order to obtain preliminary data that will allow us to define more precisely the research avenues for a subsequent study.

Eligibility criteria: Inclusion Criteria:

* Type 2 diabetes
* Under medication to treat type 2 diabetes
* Aged ≥ 18 years through 70 years

Exclusion Criteria:

* Type 1 diabetes
* Aged \<18 years or \>70 years
* Abnormal or low blood C-peptide by standard laboratory measurements.
* Have already initiated the change to ketogenic or vegan diet for more than 1 month.
* Pregnant or breastfeeding women

Primary outcomes:
measure: Change from baseline HbA1c
timeFrame: Baseline and week 26
measure: Change from baseline CRP
timeFrame: Baseline and week 26
measure: Change from baseline of fasting insulin
timeFrame: Baseline and week 26
measure: Change from baseline of triglycerides
timeFrame: Baseline and week 26
Secondary outcomes:
measure: Change in the digestive gaz exhale after meal
timeFrame: 90 min after each meal, during the first 2 months and the last 2 months
measure: Change in the microbiome
timeFrame: Baseline and week 26
Other outcomes:
Locations:
city: Saint-Mathieu
country: Canada
facility: Elna Clinic
state: Quebec
Study officials:
affiliation: Institut universitaire de cardiologie et de pneumologie de Quebec
name: Andre Marette
role: STUDY_DIRECTOR
References:
citation: Diabetes Canada Position Statement on Low-Carbohydrate Diets for Adults With Diabetes: A Rapid Review. Can J Diabetes. 2020 Jun;44(4):295-299. doi: 10.1016/j.jcjd.2020.04.001. Epub 2020 Apr 24. No abstract available.
citation: Goldenberg JZ, Day A, Brinkworth GD, Sato J, Yamada S, Jonsson T, Beardsley J, Johnson JA, Thabane L, Johnston BC. Efficacy and safety of low and very low carbohydrate diets for type 2 diabetes remission: systematic review and meta-analysis of published and unpublished randomized trial data. BMJ. 2021 Jan 13;372:m4743. doi: 10.1136/bmj.m4743.
citation: Gurung M, Li Z, You H, Rodrigues R, Jump DB, Morgun A, Shulzhenko N. Role of gut microbiota in type 2 diabetes pathophysiology. EBioMedicine. 2020 Jan;51:102590. doi: 10.1016/j.ebiom.2019.11.051. Epub 2020 Jan 3.
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citation: Rezaie A, Buresi M, Lembo A, Lin H, McCallum R, Rao S, Schmulson M, Valdovinos M, Zakko S, Pimentel M. Hydrogen and Methane-Based Breath Testing in Gastrointestinal Disorders: The North American Consensus. Am J Gastroenterol. 2017 May;112(5):775-784. doi: 10.1038/ajg.2017.46. Epub 2017 Mar 21.
citation: Athinarayanan SJ, Adams RN, Hallberg SJ, McKenzie AL, Bhanpuri NH, Campbell WW, Volek JS, Phinney SD, McCarter JP. Long-Term Effects of a Novel Continuous Remote Care Intervention Including Nutritional Ketosis for the Management of Type 2 Diabetes: A 2-Year Non-randomized Clinical Trial. Front Endocrinol (Lausanne). 2019 Jun 5;10:348. doi: 10.3389/fendo.2019.00348. eCollection 2019.
citation: Lin CL, Huang LC, Chang YT, Chen RY, Yang SH. Effectiveness of Health Coaching in Diabetes Control and Lifestyle Improvement: A Randomized-Controlled Trial. Nutrients. 2021 Oct 29;13(11):3878. doi: 10.3390/nu13113878.
citation: Kahleova H, Matoulek M, Malinska H, Oliyarnik O, Kazdova L, Neskudla T, Skoch A, Hajek M, Hill M, Kahle M, Pelikanova T. Vegetarian diet improves insulin resistance and oxidative stress markers more than conventional diet in subjects with Type 2 diabetes. Diabet Med. 2011 May;28(5):549-59. doi: 10.1111/j.1464-5491.2010.03209.x.
citation: Wang LL, Wang Q, Hong Y, Ojo O, Jiang Q, Hou YY, Huang YH, Wang XH. The Effect of Low-Carbohydrate Diet on Glycemic Control in Patients with Type 2 Diabetes Mellitus. Nutrients. 2018 May 23;10(6):661. doi: 10.3390/nu10060661.