NCT04219709Recruiting

Effects of Ketosis on Brain Function in Patients With T1DM

Brain Function, Cognition, and Hypoglycemia Tolerance in Patients With Type 1 Diabetes Mellitus in the Setting of Nutritional Ketosis Versus Standard Carbohydrate Diet

Source: ClinicalTrials.gov · Last updated 18 Dec 2024 · Not updated for over 12 months - ask the site whether it is still open

Brief summary (registry, in English)

The scientific goal of this study is to examine the effects of a ketogenic diet on hypoglycemia tolerance and brain function in people with type 1 diabetes mellitus (T1D) and to clarify the mechanistic role of ketones in this process. Glycemic management of T1D is typified by alternating periods of hyper- and hypo-glycemia. Because brain metabolism under usual conditions depends on glucose, acute hypoglycemia leads to immediate complications including impaired cognitive function and a counter-regulatory hormone response. Recurrent hypoglycemia is associated with functional and structural changes in the brain and contributes to the cognitive decline observed in individuals with diabetes. The state of nutritional ketosis (as it occurs during fasting or when following a ketogenic \[very low carbohydrate\] diet) may protect against these acute and chronic complications. As the body relies on fat metabolism, ketone bodies build up and provide an alternative fuel for the brain. Studies during hypoglycemia have shown better cognitive function and less hypoglycemia symptoms in the setting of nutritional ketosis or with ketone administration. This physiological benefit may have special relevance for people with T1D who experience hypoglycemia frequently. To date, no mechanistic studies have examined brain effects of nutritional ketosis in T1D; nor have any trials explored the potential relevance of this for diabetes care.

Status (registry): Recruiting
Study type: Interventional
Enrollment: 24 (estimated)
First submitted: 3 Jan 2020
Start date: 3 Jan 2020
Primary completion date: 31 Jul 2026
Lead sponsor: Boston Children's Hospital
Diseases: Type 1 diabetes
NCT number: NCT04219709

What you commit to

Study type: Interventional
Planned participants: 24
From 3 Jan 2020 to the primary completion date, 31 Jul 2026
1 site in 1 country
Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

Smoking, use of recreational drugs, or excessive alcohol consumption
For participants who undergo MRI:
- Standard MRI exclusion criteria
- Irregular menses
- Use of psychotropic medication other than SSRIs or other mild antidepressant or anxiety medications (unless these medications are safe to be held for several days to allow for the acquisition of MRI data).

Other illness

Ketoacidosis or severe hypoglycemia with seizure or coma in the past 6 months
Dietary restrictions or intolerances that are incompatible with the planned food deliveries, e.g. celiac disease, gastroparesis, certain food allergies
History of an eating disorder or at risk for eating disorder, assessed by the Eating Disorders Diagnostic Scale (EDDS)
Major medical illness or use of medications other than insulin and metformin that could interfere with metabolic or glycemic variables
Significant psychiatric illness

Other

Following a weight-loss or otherwise restrictive diet
Vigorous exercise \>2 hours on \>3 days a week
Pregnancy or breastfeeding
Anemia

Who the study is looking for

Males and females with T1D for at least 1 year
Age 18 to 40 years
Tanner stage ≥ IV
BMI 18.5-35 kg/m2
Stable glycemic control (HbA1c 6.5-9%)
Use of a continuous glucose monitor (CGM)
Use of an insulin pump
Attendance of at least 1 diabetes care visit over the past 12 months (including virtual)

Age in the registry: 18 years to 40 years · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Pick your city on the disease page to sort them by distance.

Site	City	Country	Site status
Boston Childrens Hospital Coordinator of this site? Confirm its status	Boston	United States	Recruiting

This page is information, not medical advice. Discuss any trial with your doctor.