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| Name | Class |
|---|---|
| ICTS BJH | UNKNOWN |
| Center for Diabetes Translation Research | UNKNOWN |
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Good glycemic control in individuals with Type 1 diabetes (T1D), has been proven to reduce the risk of diabetes-related complications. Despite technological advances such as the use of insulin delivery devices and continuous glucose monitoring, the average glycemic control in T1D is poor. Though dietary management plays a major role in the overall management of T1D, and it is often classified as the most challenging aspect of treatment, the 2019 Standards of Medical Care in Diabetes for children and adolescents do not clearly address dietary management. As carbohydrate is the macronutrient with the greatest impact on blood glucose, it is reasonable to suggest that carbohydrate reduction will minimize postprandial glucose excursions and improve diabetes control. For this reason, low carbohydrate diets (LCD) have gained popularity, and observational studies report positive glycemic outcomes. However, to date, scientific evidence from randomized trials on the impact of LCD in children with T1D is lacking. Thus, the over-arching goal of this pilot study is to evaluate the feasibility and safety of a low carbohydrate diet in children with T1D, and as an exploratory aim, we will evaluate the efficacy of LCD on glycemic control.
The investigators aim to study 40 subjects ages 5-11 with T1D to evaluate the feasibility of LCD. Participants will be asked to attend a total of 5 visits (4 in person and 1 phone visit) during the 6 month-duration of the study. Participants will be randomized to an intervention group with a LCD (50% of carbohydrate recommended daily allowance) vs. the standard diet.
During the screening visit, participants will be assessed by a dietitian to categorize their existing dietary regimen before randomization to either the LCD or the standard diet. In addition, participant's insulin regimen (either pump settings or multiple dose insulin injection therapy) will be reviewed for insulin dose adjustments as needed over a 2 week-period.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Low carb diet intervention group | Experimental | Low carbohydrate diet defined as 25-35% of total energy intake |
|
| Control | No Intervention | Standard diet defined as 45-65% total energy intake |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Low carbohydrate diet | Other | 25-35% of carbohydrates from total energy intake |
|
| Measure | Description | Time Frame |
|---|---|---|
| Number of hypoglycemic events | Using a continuous glucose monitor (CGM) and home glucose meter, investigators will calculate the number of hypoglycemic events (glucose values <70 mg/dL but ≥ 54 mg/dL and those <54 mg/dL), number of severe hypoglycemia and time spent in hypoglycemia (values <70 mg/dL but ≥ 54 mg/dL and <54 mg/dL). | 6 month study period |
| Episodes of diabetes related visits to the hospital, DKA | Investigators will obtain data prospectively from medical records and will estimate the frequency of DKA, diabetes related hospitalizations / emergency department visits. | 6 month study period |
| Dyslipidemia | Investigators will evaluate the changes in LDL levels among the study groups. | 6 month study period |
| Measure | Description | Time Frame |
|---|---|---|
| Glycemic control | Investigators will evaluate the changes in glycemic control among the groups using HbA1c at baseline, 3 and 6 months. | 6 month duration of the study |
| Glucose variability | Using CGM data investigators will evaluate glucose variability using standard deviation (SD) of all glucose values. Secondary endpoints will include time of the day spent in range (values between 70-140 mg/dl and between 70 and 180mg/dl), in hypoglycemia (values <70 mgl/dl but ≥ 54 mg/dl and <54 mg/dl) and in hyperglycemia (values >180mg/dl and >250 mg/dl). |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| St Louis Children's Hospital | St Louis | Missouri | 63110 | United States |
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| ID | Term |
|---|---|
| D003922 | Diabetes Mellitus, Type 1 |
| ID | Term |
|---|---|
| D003920 | Diabetes Mellitus |
| D044882 | Glucose Metabolism Disorders |
| D008659 | Metabolic Diseases |
| D009750 | Nutritional and Metabolic Diseases |
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| ID | Term |
|---|---|
| D050528 | Diet, Carbohydrate-Restricted |
| ID | Term |
|---|---|
| D004035 | Diet Therapy |
| D044623 | Nutrition Therapy |
| D013812 | Therapeutics |
| D004032 | Diet |
| D009747 |
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20 participants will be randomized to the intervention group (low carbohydrate diet) and 20 participants will be randomized to the control group
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| 6 month study period |
| D004700 | Endocrine System Diseases |
| D001327 | Autoimmune Diseases |
| D007154 | Immune System Diseases |
| Nutritional Physiological Phenomena |
| D000066888 | Diet, Food, and Nutrition |
| D010829 | Physiological Phenomena |