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Type 1 diabetes mellitus (T1DM) is an autoimmune disease in which the body's immune system attacks and destroys the insulin producing beta cells of the pancreas. This condition is very prevalent, affecting up to 1:400/500 persons worldwide. Type 1 diabetes, previously known as juvenile diabetes, usually strikes in childhood, adolescence, or young adulthood, but lasts for a lifetime. To date, there have been no treatments that can arrest or reverse the ongoing beta cell destruction. The patients affected by this disease require multiple daily insulin injections to manage their blood sugars and usually have trouble regulating their blood sugars. Moreover, they are at risk for heart disease, kidney failure, eye problems, and other complications from this life-long condition.
The investigators plan to utilize gamma-amino butyric acid (GABA) in children with newly diagnosed T1DM. This neurotransmitter is made in the brain from the amino acid glutamate with the aid of vitamin B6. There have been some recent studies in diabetic mice utilizing GABA to reverse inflammation on the pancreas and improve hyperglycemia. GABA studied in healthy human subjects demonstrated that large oral doses of GABA increased insulin secretion from the pancreas.
The investigators propose that GABA given to children with new onset T1DM will be able to increase insulin production, suppress glucagon release, and decrease the inflammation surrounding the pancreas. The investigators hope this will at least prolong the beta cell life after diagnosis, if not lead to a cure for type 1 diabetes.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| GABA | Experimental | 2/3 of participants will be randomized to the GABA treatment group. Dosage will be based on body weight and will be adjusted at each study visit. |
|
| Placebo | Placebo Comparator | 1/3 of participants will receive placebo. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| gamma-amino-butyric acid | Drug | gamma-amino butyric acid will be administered orally at a dose of 80mg/kg/day divided BID for one year. |
|
| Measure | Description | Time Frame |
|---|---|---|
| change in stimulated c-peptide | We will measure c-peptide levels stimulated by a mixed meal tolerance test at baseline, six months and 12 months. | over 1 year |
| Measure | Description | Time Frame |
|---|---|---|
| change in HbA1C | We will assess the change in hemoglobin A1C at baseline and every 3-4 months for a total duration of 1 year. | over 1 year |
| change in total daily insulin dose per kilogram | We will assess the change in total daily insulin dose per kilogram of subject body weight at baseline and every 3-4 months for a total duration of 1 year. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Alison J Lunsford, MD | University of Alabama at Birmingham | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Alabama at Birmingham | Birmingham | Alabama | 35233 | United States |
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| ID | Term |
|---|---|
| D003920 | Diabetes Mellitus |
| ID | Term |
|---|---|
| D044882 | Glucose Metabolism Disorders |
| D008659 | Metabolic Diseases |
| D009750 | Nutritional and Metabolic Diseases |
| D004700 | Endocrine System Diseases |
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| ID | Term |
|---|---|
| D005680 | gamma-Aminobutyric Acid |
| D014993 | Xylitol |
| ID | Term |
|---|---|
| D000613 | Aminobutyrates |
| D002087 | Butyrates |
| D000144 | Acids, Acyclic |
| D002264 | Carboxylic Acids |
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| Xylitol | Dietary Supplement | The placebo group will be provided Xylitol powder dosed per body weight. Participants will be instructed to take powder orally twice a day for one year. |
|
| over 1 year |
| D009930 |
| Organic Chemicals |
| D000596 | Amino Acids |
| D000602 | Amino Acids, Peptides, and Proteins |
| D013402 | Sugar Alcohols |
| D000438 | Alcohols |
| D002241 | Carbohydrates |