Type 2 Diabetes Mellitus
Conditions
Brief summary
This study will evaluate whether bile acids are able to increase insulin sensitivity and enhance glycemic control in T2DM patients, as well as exploring the mechanisms that enhance glycemic control. These observations will provide the preliminary data for proposing future therapeutic as well as further mechanistic studies of the role of bile acids in the control of glycemia in T2DM.
Detailed description
Background: Intra-jejunal administration of bile acids improves insulin sensitivity. Hypothesis: The bile acid, ursodeoxycholic acid (UDCA) in delayed (ileocolonic)-release formulation, stimulates bile acid membrane receptor (TGR-5) and farnesol X (FXR) receptors in the ileum and colon, increasing the secretion of Fibroblast growth factor 19 (FGF-19), GLP-1, oxyntomodulin (OXM), and Peptide (PYY3-36), improving insulin sensitivity and inducing weight loss. Aim: To study the effect of an ileocolonic formulation of UDCA on insulin sensitivity, postprandial plasma glycemia and incretin levels, gastric emptying and body weight in overweight or obese type 2 diabetic subjects on monotherapy with metformin. Study design: This is a single center, placebo-controlled, parallel group, single dose randomized controlled trial to study the effect of delayed (ileocolonic)-release UDCA 600 mg twice daily on insulin sensitivity, gastric emptying of liquids and solids (measured by scintigraphy)and weight loss in overweight or obese type 2 diabetic subjects. Participants will be receiving monotherapy with metformin. Blood samples will be collected at defined times to measure glycemia and the incretin (GLP-1, OXM, PYY3-36) fasting levels and responses to the meal. Anticipated Results: In comparison with placebo, UDCA will increase insulin sensitivity, enhance glycemic control, increase postprandial incretins, and delay gastric emptying (GE) of liquids. Significance: This study will prove that ileocolonic-release UDCA enhances glycemic control in T2DM patients.
Interventions
Sponsors
Study design
Eligibility
Inclusion criteria
Overweight or Obese subjects with BMI\> 25 Kg/m2 with Type 2 Diabetes mellitus on Metformin, receiving standard of care for Type 2 DM. Otherwise individuals who are not currently on treatment for cardiac, pulmonary, gastrointestinal, hepatic, renal, hematological, neurological, endocrine (other than T2DM) and unstable psychiatric disease. Men or women. Women of childbearing potential will have a negative pregnancy test before initiation of medication.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in Area Above Basal (AAB) for Glucose | baseline, post-treatment approximately 14 - 17 days | Mixed meal glucose results are used to calculate the area above basal (AAB) for glucose. The glycemic index of a food is defined as the incremental area under the two-hour blood glucose response curve (AUC) following an overnight fast and ingestion of a food with a certain quantity of available carbohydrate (usually 50 g). |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Change in Insulin Sensitivity | baseline, post-treatment approximately 14 - 17 days | Insulin sensitivity will be calculated by the oral minimal model. |
| Gastric Emptying of Liquids (T1/2) | post-treatment, approximately 14-17 days | The time for half of the ingested liquids to leave the stomach. Following a meal with milk labeled with indium In111 diethylenetriaminepentaacetate (0.1 mCi), gastric emptying of liquids was assessed with scintigraphy imaging. |
| Gastric Emptying of Solids (T1/2) | post-treatment, approximately 14-17 days | The time for half of the ingested solids to leave the stomach. Following a meal consisting of two eggs labeled with technetium Tc 99m sulfur colloid (1 mCi) served with 50g of Canadian bacon and one slice of bread gastric emptying of solids was assessed with scintigraphy imaging. |
| Change in Fasting Glucose | baseline, post-treatment approximately 14 - 17 days | Serum glucose measurements taken after 10 hours of fasting. |
| Change in Body Mass Index | baseline, post-treatment approximately 14 - 17 days | Change in subjects BMI, in kilograms per meter squared. |
| Change in FGF-19 | baseline, post-treatment approximately 14 - 17 days | Change in fasting fibroblast growth factor (FGF)-19 expression. |
| Change in Weight | baseline, post-treatment approximately 14 - 17 days | Change in subject's weight, in kilograms |
Countries
United States
Participant flow
Participants by arm
| Arm | Count |
|---|---|
| Ursodiol Ursodeoxycholic acid (UDCA) 600mg in delayed (ileocolonic)-release to be taken twice daily
Ursodiol | 12 |
| Placebo matching placebo capsules to be taken twice daily
Ursodiol | 12 |
| Total | 24 |
Baseline characteristics
| Characteristic | Ursodiol | Total | Placebo |
|---|---|---|---|
| Age, Continuous | 62.5 years | 58.9 years | 57 years |
| Race (NIH/OMB) American Indian or Alaska Native | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Asian | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Black or African American | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) More than one race | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Native Hawaiian or Other Pacific Islander | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Unknown or Not Reported | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) White | 12 Participants | 24 Participants | 12 Participants |
| Region of Enrollment United States | 12 participants | 24 participants | 12 participants |
| Sex: Female, Male Female | 6 Participants | 12 Participants | 6 Participants |
| Sex: Female, Male Male | 6 Participants | 12 Participants | 6 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk |
|---|---|---|
| deaths Total, all-cause mortality | 0 / 12 | 0 / 12 |
| other Total, other adverse events | 0 / 12 | 0 / 12 |
| serious Total, serious adverse events | 0 / 12 | 0 / 12 |
Outcome results
Change in Area Above Basal (AAB) for Glucose
Mixed meal glucose results are used to calculate the area above basal (AAB) for glucose. The glycemic index of a food is defined as the incremental area under the two-hour blood glucose response curve (AUC) following an overnight fast and ingestion of a food with a certain quantity of available carbohydrate (usually 50 g).
Time frame: baseline, post-treatment approximately 14 - 17 days
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Ursodiol | Change in Area Above Basal (AAB) for Glucose | 66458 mg/dL x min |
| Placebo | Change in Area Above Basal (AAB) for Glucose | 72566 mg/dL x min |
Change in Body Mass Index
Change in subjects BMI, in kilograms per meter squared.
Time frame: baseline, post-treatment approximately 14 - 17 days
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Ursodiol | Change in Body Mass Index | 33.1 kg/m^2 |
| Placebo | Change in Body Mass Index | 32.3 kg/m^2 |
Change in Fasting Glucose
Serum glucose measurements taken after 10 hours of fasting.
Time frame: baseline, post-treatment approximately 14 - 17 days
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Ursodiol | Change in Fasting Glucose | 142 mg/dL |
| Placebo | Change in Fasting Glucose | 155.7 mg/dL |
Change in FGF-19
Change in fasting fibroblast growth factor (FGF)-19 expression.
Time frame: baseline, post-treatment approximately 14 - 17 days
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Ursodiol | Change in FGF-19 | 52.2 mg/dL |
| Placebo | Change in FGF-19 | 90.2 mg/dL |
Change in Insulin Sensitivity
Insulin sensitivity will be calculated by the oral minimal model.
Time frame: baseline, post-treatment approximately 14 - 17 days
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Ursodiol | Change in Insulin Sensitivity | 19983 mg/dL x minutes |
| Placebo | Change in Insulin Sensitivity | 19086 mg/dL x minutes |
Change in Weight
Change in subject's weight, in kilograms
Time frame: baseline, post-treatment approximately 14 - 17 days
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Ursodiol | Change in Weight | 93.6 kilograms |
| Placebo | Change in Weight | 101.9 kilograms |
Gastric Emptying of Liquids (T1/2)
The time for half of the ingested liquids to leave the stomach. Following a meal with milk labeled with indium In111 diethylenetriaminepentaacetate (0.1 mCi), gastric emptying of liquids was assessed with scintigraphy imaging.
Time frame: post-treatment, approximately 14-17 days
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Ursodiol | Gastric Emptying of Liquids (T1/2) | 63.2 minutes |
| Placebo | Gastric Emptying of Liquids (T1/2) | 63.6 minutes |
Gastric Emptying of Solids (T1/2)
The time for half of the ingested solids to leave the stomach. Following a meal consisting of two eggs labeled with technetium Tc 99m sulfur colloid (1 mCi) served with 50g of Canadian bacon and one slice of bread gastric emptying of solids was assessed with scintigraphy imaging.
Time frame: post-treatment, approximately 14-17 days
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Ursodiol | Gastric Emptying of Solids (T1/2) | 167.5 minutes |
| Placebo | Gastric Emptying of Solids (T1/2) | 172.3 minutes |