Effects of Quercetin on Blood Sugar and Blood Vessel Function in Type 2 Diabetes.
NCT01839344 · Status: COMPLETED · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 19
Last updated 2015-03-18
Summary
The purpose of this study is to measure the effect of quercetin on glucose tolerance and postprandial endothelial function in comparison to placebo and Acarbose in participants with Type 2 Diabetes.
Primary Hypothesis: We hypothesize that administration of quercetin (2g oral) prior to a 100g maltose tolerance test (MTT) will result in a decrease in postprandial blood glucose at 60 minutes compared to placebo. Acarbose (100mg oral), a pharmaceutical alpha-glucosidase inhibitor, will serve as a positive control.
Secondary Hypothesis: We hypothesize that administration of quercetin (2g oral) will reduce the Area Under the Glucose Curve (AUC) for the 2 hours following a 100g MTT compared to placebo. AUC is hypothesized to be comparable between quercetin and Acarbose.
Tertiary hypothesis: We hypothesize that administration of quercetin (2g oral) prior to a 100g MTT will result in a smaller reduction in flow mediated dilation (FMD) measured as an increase in Reactive Hyperemia Index (RHI) at 90 minutes compared to placebo.
Conditions
- Diabetes Mellitus, Type 2
Interventions
- DIETARY_SUPPLEMENT
-
Quercetin
Quercetin 250 mg capsules; oral single dose of 2000 mg
- DRUG
-
Acarbose
Acarbose 100 mg tablet; oral single dose of 100 mg
- DRUG
-
An oral single dose of a solid, colored empty capsule.
Sponsors & Collaborators
-
Bastyr University
lead OTHER
Principal Investigators
-
Ryan Bradley, ND, MPH · Bastyr University
Study Design
- Allocation
- RANDOMIZED
- Purpose
- TREATMENT
- Masking
- QUADRUPLE
- Model
- CROSSOVER
Eligibility
- Min Age
- 18 Years
- Max Age
- 75 Years
- Sex
- ALL
- Healthy Volunteers
- No
Timeline & Regulatory
- Start
- 2013-05-31
- Primary Completion
- 2014-03-31
- Completion
- 2015-03-31
Countries
- United States
Study Locations
More Related Trials
-
The Effect of Long-term Momordica Charantia Supplementation on Blood Glucose Levels
NCT05215210 ·Status: COMPLETED ·Phase: NA
-
Effects of Carbohydrase-inhibiting Polyphenols on Glycaemic Response in Vivo
NCT01994135 ·Status: COMPLETED ·Phase: NA
-
Effect of Momordica Charantia Administration on Type 2 Diabetes Mellitus, Insulin Sensitivity and Insulin Secretion
NCT02397447 ·Status: COMPLETED ·Phase: PHASE2
-
Effect of Green Tea Extract on Arterial Stiffness in Type 2 Diabetes Mellitus
NCT02627898 ·Status: COMPLETED ·Phase: PHASE2
-
Effects of Resveratrol on Endothelial Function in Type 2 Diabetes Mellitus
NCT01881347 ·Status: COMPLETED ·Phase: NA
-
The Effect of a Botanical Plant Extract on Gut Health, Immunity and Metabolic Disorders in Healthy Adults
NCT03921333 ·Status: COMPLETED ·Phase: NA
-
Effect of Rubus Occidentalis Extract on Plasma Glucose Levels in Subject With Prediabetes
NCT01964703 ·Status: COMPLETED ·Phase: PHASE4
-
Effect of Lycopene and Isoflavones on Glucose Metabolism
NCT01377961 ·Status: WITHDRAWN ·Phase: NA
-
Quantitative in Vivo Biomarkers of Oxidative Stress in Diabetes
NCT00845130 ·Status: COMPLETED ·Phase: NA
-
Resveratrol and Type 2 Diabetes
NCT01638780 ·Status: UNKNOWN ·Phase: NA
-
The Effect of DBcare, a Food Supplement on Diabetes Control
NCT00563004 ·Status: COMPLETED ·Phase: NA
-
The Effect of 4 Weeks of L-Citrulline Supplementation on Macro- and Microvascular Function in Type 2 Diabetes
NCT06016478 ·Status: COMPLETED ·Phase: NA
-
Effect of Green Tea Extract on Type 2 Diabetes
NCT00567905 ·Status: COMPLETED ·Phase: PHASE2/PHASE3
-
Effect of an Extract of Green Tea on Adults With Type 2 Diabetes
NCT00389350 ·Status: COMPLETED ·Phase: PHASE2/PHASE3
-
The Effect of Dietary Nitrate Supplementation on Ability of Individuals With Type 2 Diabetes to Perform Exercise
NCT02206074 ·Status: COMPLETED ·Phase: NA
-
The Effects of Crocin Supplementation on Metabolic Parameters, Oxidative Stress, AMP- Activated Protein Kinase and Inflammation-promoting Genes Expression in Peripheral Blood Mononuclear Cells in Patients With Type 2 Diabetes
NCT04163757 ·Status: COMPLETED ·Phase: NA
-
Effect of Nitrate on Red Blood Cell Function in Type 2 Diabetes
NCT04917471 ·Status: RECRUITING ·Phase: NA
-
Acute Study of Anthocyanin-rich Bilberry and Polyphenol-rich Apple Extracts on Postprandial Glycaemic Response
NCT04004182 ·Status: UNKNOWN ·Phase: NA
-
Effects of Red Grape Cells (RGC) Powder in Type 2 Diabetics
NCT01938521 ·Status: COMPLETED ·Phase: NA
-
Therapeutic Intervention of Eriomin Associated with Metformin in the Control of Hyperglycemia in Pre-Diabetic Patients
NCT06005142 ·Status: ACTIVE_NOT_RECRUITING ·Phase: NA
-
Effect of Administration of Resveratrol on Glycemic Variability in Individuals With Type 2 Diabetes Mellitus
NCT02549924 ·Status: TERMINATED ·Phase: PHASE2
-
A Single Supplement of a Standardised Bilberry Extract Modifies Glycaemic Response
NCT01245270 ·Status: COMPLETED ·Phase: NA
-
Effect of Polyherbal Compound for Control of Blood Sugar in Impaired Glucose Tolerance and Diabetes
NCT02866539 ·Status: COMPLETED ·Phase: NA
-
Pilot Study of Resveratrol in Older Adults With Impaired Glucose Tolerance
NCT01375959 ·Status: COMPLETED ·Phase: NA
-
Effect of Resveratrol Administration on Metabolic Syndrome, Insulin Sensitivity and Insulin Secretion
NCT02114892 ·Status: COMPLETED ·Phase: PHASE2