Diabetes Mellitus, Type 2
Conditions
Keywords
Diabetes Mellitus, Type 2, Obesity, Nutrient
Brief summary
This study will evaluate whether enteric-coated nutrients increase some glucose and regulating hormone levels, glucose tolerance and satiety in overweight and obese individuals with type 2 diabetes.
Detailed description
Direct delivery of nutrient to the upper intestine by enteral feeding tube can increase circulating levels of some glucose and appetite regulating hormones when compared to usual oral ingestion. Such an enhancement could be of value in the management of type 2 diabetes and obesity. In this study enteric-coated nutrients will be ingested to allow for direct delivery of nutrient to the upper intestine. Levels of select hormones and glucose, and measures of satiety and adverse effects will be compared following the ingestion of uncoated and enteric coated nutrient.
Interventions
DIETARY_SUPPLEMENTSucrose plus Whole Milk Powder in Enteric Coating
Single dose enteric coated sucrose plus whole milk powder will be consumed by mouth. Blood will be drawn at baseline and then at 15 minute intervals for 3 hours from ingestion for measurement of GLP-1, PYY, C-peptide, insulin and glucose.Visual analog score will be used to record satiety and adverse symptoms every 15 minutes.
DIETARY_SUPPLEMENTNon coated Sucrose plus Whole Milk
Single dose sucrose plus whole milk powder with separate enteric coating materials will be consumed by mouth. Blood will be drawn at baseline and then at 15 minute intervals for 3 hours from ingestion for measurement of GLP-1, PYY, C-peptide, insulin and glucose.Visual analog score will be used to record satiety and adverse symptoms every 15 minutes.
DIETARY_SUPPLEMENTSucrose in Enteric Coating
Single dose enteric coated sucrose will be consumed by mouth. Blood will be drawn at baseline and then at 15 minute intervals for 3 hours from ingestion for measurement of GLP-1, PYY, C-peptide, insulin and glucose.Visual analog score will be used to record satiety and adverse symptoms every 15 minutes.
DIETARY_SUPPLEMENTSucrose with Separate Enteric Coating Materials
Single dose sucrose with separate enteric coating materials will be consumed by mouth. Blood will be drawn at baseline and then at 15 minute intervals for 3 hours from ingestion for measurement of GLP-1, PYY, C-peptide, insulin and glucose.Visual analog score will be used to record satiety and adverse symptoms every 15 minutes.
DIETARY_SUPPLEMENTWhey Protein in Enteric Coating
Single dose enteric coated whey protein will be consumed by mouth. Blood will be drawn at baseline and then at 15 minute intervals for 3 hours from ingestion for measurement of GLP-1, PYY, C-peptide, insulin and glucose.Visual analog score will be used to record satiety and adverse symptoms every 15 minutes.
DIETARY_SUPPLEMENTWhey Protein with Separate Enteric Coating Materials
Single dose whey protein with separate enteric coating materials will be consumed by mouth. Blood will be drawn at baseline and then at 15 minute intervals for 3 hours from ingestion for measurement of GLP-1, PYY, C-peptide, insulin and glucose.Visual analog score will be used to record satiety and adverse symptoms every 15 minutes.
DIETARY_SUPPLEMENTPea Protein in Enteric Coating
Single dose enteric coated pea protein will be consumed by mouth. Blood will be drawn at baseline and then at 15 minute intervals for 3 hours from ingestion for measurement of GLP-1, PYY, C-peptide, insulin and glucose.Visual analog score will be used to record satiety and adverse symptoms every 15 minutes.
DIETARY_SUPPLEMENTPea Protein with Separate Enteric Coating Materials
Single dose pea protein with separate enteric coating materials will be consumed by mouth. Blood will be drawn at baseline and then at 15 minute intervals for 3 hours from ingestion for measurement of GLP-1, PYY, C-peptide, insulin and glucose.Visual analog score will be used to record satiety and adverse symptoms every 15 minutes.
Sponsors
University of Southern California
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
BASIC_SCIENCE
Masking
SINGLE (Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No
Inclusion criteria
* 18-65 years of age * BMI \>27kg/m2 * Type 2 diabetes with known duration of \<10years * On metformin, sulfonylureas, thiazolidinedione or SGLT2 inhibitor or lifestyle management alone or in combination only for management of type 2 diabetes
Exclusion criteria
Conditions * Known foregut pathology or prior foregut surgery. * Previous surgical treatment for obesity (excluding liposuction if performed \> one year before trial entry) * Known cardiovascular disease other than controlled hypertension * Known proliferative retinopathy or maculopathy requiring acute treatment, as judged by the Investigator * Known untreated or uncontrolled hypothyroidism/hyperthyroidism * History of chronic pancreatitis or idiopathic acute pancreatitis * Obesity induced by other endocrinologic disorders (e.g. Cushing Syndrome) * Cancer (past or present except basal cell skin cancer or squamous cell skin cancer), which in the Investigator's opinion could interfere with the results of the trial * Use of insulin, DPP4 inhibitors or GLP-1 analogs in the previous 1 month * Treatment with any antidiabetic agent(s) other than metformin, sulphonylurea thiazolidinedione or SGLT-2 inhibitors in the 1 month prior to screening * Use of any drug (except for metformin, sulphonylurea or thiazolidinedione or SGLT-2 inhibitors), which in the Investigator's opinion could interfere with glucose level (e.g. systemic corticosteroids) * Receipt of any other anti-diabetic investigational drug within 1 month prior to screening for this trial, or receipt of any investigational drugs not affecting diabetes within 1 month prior to screening for this trial * Current or history of treatment with medications that may cause significant weight gain, within 1 month prior to screening for this trial, including systemic corticosteroids (except for a short course of treatment, i.e., 7- 10 days), tri-cyclic antidepressants, atypical antipsychotic and mood stabilizers (e.g., imipramine, amitryptiline, mirtazapin, paroxetine, phenelzine, clorpromazine, olanzapine,valproic acid and its derivatives, and lithium) thioridazine, clozapine, * Currently using or have used within three months prior to screening for this trial: pramlintide, sibutramine, orlistat, zonisamide, topiramate or phenteremine (either by prescription or as part of a clinical trial) * Simultaneous participation in any other clinical trial of an investigational drug * The receipt of any investigational product within four weeks prior to screening for this trial Herbal supplements or over-the-counter medications * Diet attempts using herbal supplements or over-the-counter medications within 1 month prior to screening into this trial Other * Milk allergy * Lactose intolerance Language barrier, mental incapacity, unwillingness or inability to understand and be able to complete the study Females of childbearing potential * Pregnant breast-feeding or intend to become pregnant or are not using adequate contraceptive methods (adequate contraceptive measures as required by US: abstinence and the following methods: diaphragm with spermacide, condom with spermacide (by male partner), intrauterine device, sponge, spermacide, Norplant®, Depo-Provera® or oral contraceptives.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Difference in AUC of GLP-1 on meal tolerance tests Enteric Coated vs. Uncoated Nutrient. | From ingestion to 3 hours post ingestion. | Integrated Area under the curve (AUC) levels of blood GLP-1 on meal tolerance tests. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Difference in Peak C-peptide on meal tolerance tests Enteric Coated vs. Uncoated Nutrient. | From ingestion to 3 hours post ingestion. | Highest level of blood C-peptide on 3 hour meal tolerance test |
| Difference in Peak insulin on meal tolerance tests Enteric Coated vs. Uncoated Nutrient. | From ingestion to 3 hours post ingestion. | Highest level of blood insulin on 3 hour meal tolerance test |
| Difference in Peak glucose on meal tolerance tests Enteric Coated vs. Uncoated Nutrient. | From ingestion to 3 hours post ingestion. | Highest level of blood glucose on 3 hour meal tolerance test |
| Difference in Peak satiety on meal tolerance tests Enteric Coated vs. Uncoated Nutrient. | From ingestion to 3 hours post ingestion. | Highest level of satiety on 3 hour meal tolerance test measured on a 15mm visual analog scale |
| Difference in Peak Adverse Events on meal tolerance tests Enteric Coated vs. Uncoated Nutrient. | From ingestion to 3 hours post ingestion. | Highest level of adverse symptoms on 3 hour meal tolerance test measured on a 15mm visual analog scale |
| Difference in AUC of PYY on meal tolerance tests Enteric Coated vs. Uncoated Nutrient. | From ingestion to 3 hours post ingestion. | Integrated Area under the curve (AUC) levels of blood PYY on meal tolerance tests. |
| Difference in Peak PYY on meal tolerance tests Enteric Coated vs. Uncoated Nutrient. | From ingestion to 3 hours post ingestion. | Highest level of blood PYY on 3 hour meal tolerance test |
| Difference in AUC of insulin on meal tolerance tests Enteric Coated vs. Uncoated Nutrient. | From ingestion to 3 hours post ingestion. | Integrated Area under the curve (AUC) levels of blood insulin on meal tolerance tests. |
| Difference in AUC of glucose on meal tolerance tests Enteric Coated vs. Uncoated Nutrient. | From ingestion to 3 hours post ingestion. | Integrated Area under the curve (AUC) levels of blood glucose on meal tolerance tests. |
| Difference in AUC of satiety on meal tolerance tests Enteric Coated vs. Uncoated Nutrient. | From ingestion to 3 hours post ingestion. | Integrated Area under the curve (AUC) levels of satiety on meal tolerance tests of adverse symptoms on 3 hour meal tolerance test measured on a 15mm visual analog scale |
| Difference in AUC of adverse symptoms on meal tolerance tests Enteric Coated vs. Uncoated Nutrient. | From ingestion to 3 hours post ingestion. | Integrated Area under the curve (AUC) levels of adverse symptoms on meal tolerance tests of adverse symptoms on 3 hour meal tolerance test measured on a 15mm visual analog scale |
| Difference in Peak GLP-1 on meal tolerance tests Enteric Coated vs. Uncoated Nutrient. | From ingestion to 3 hours post ingestion. | Highest level of blood GLP-1 on 3 hour meal tolerance test |
| Difference in AUC of C-peptide on meal tolerance tests Enteric Coated vs. Uncoated Nutrient. | From ingestion to 3 hours post ingestion. | Integrated Area under the curve (AUC) levels of blood C-peptide on meal tolerance tests. |
Countries
United States
Outcome results
None listed