Pilot Study of the Effect of Purple Rice on Glucose Tolerance, Serum Lipids and Inflammation

Not Applicable

Completed

• Conditions: Type 2 Diabetic
• Interventions: Dietary Supplement: Brown Rice; Dietary Supplement: Purple Rice

• Registration Number: NCT01720511
• Lead Sponsor: Pennington Biomedical Research Center

Brief Summary

This is a pilot study to demonstrate the effect of purple rice on post-prandial glucose and insulin. The purple color is due, like red wine grapes, mainly to the anthocyanins. The safety and tolerability of purple rice is similar to white or brown rice, but contains the purple elements common to other foods like grapes.

Detailed Description

This is a study that will have 1 screening visit and 9 study visits. Subjects will come to the screening visit for blood chemistry, health questionnaire and speak to the coordinator. Each subject passing inclusion/exclusion will go on to eat purple rice for 4 weeks and brown rice for 4 weeks. The 4-week feeding periods will be balanced and assigned randomly. The subjects will report to the metabolic kitchen to pick up their supply of 14 frozen rice dishes each week in a container and return the empty containers as a measure of compliance. At the end of each 4-week feeding period, subjects will come to the inpatient unit fasting from 9pm the prior night except for water. Subjects will have an intravenous line placed and fasting blood will be drawn for chemistry. Subjects will then be given glucose to drink and blood will be drawn from then IV line for glucose and insulin at time listed in the consent.

Study Timeline

• Study Start: 2012-09
• Study First Submitted: 2012-10-30
• Study First Submitted QC: 2012-10-31
• Study First Posted: 2012-11-02
• Primary Completion: 2015-10
• Study Completion: 2015-10
• Status Verified: 2015-12
• Last Update Submitted: 2015-12-17
• Last Update Posted: 2015-12-18

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 10

Inclusion Criteria

• Generally healthy male or female with a fasting glucose between 100 mg/mL and 126 mg/dL or with type 2 diabetes controlled on diet without diabetes medications.
• Eighteen years of age or older.
• Hemoglobin A1c(HgbA1c) less than 7%.

Exclusion Criteria

• Pregnant or nursing.
• Taking a medication for diabetes (e.g. Metformin), a medication known to affect blood sugar (e.g. glucocorticoids), an anti-inflammatory medication (e.g. aspiring) or triglycerides (e.g. fibrates).
• Any chronic medication that has not had a stable dose for 1 month or longer.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
Brown RIce	Brown Rice	Plain Purple rice given twice a day
Purple Rice	Purple Rice	Twice a day given purple rice with 5mg of resveratrol.

Primary Outcome Measures

Name	Time	Method
Glucose Tolerance	10 weeks	Subjects will have an Intravenous line placed and fasting blood will be drawn. Subjects will then be given glucose to drink and blood will be drawn from an IV line for glucose and insulin.

Secondary Outcome Measures

Name	Time	Method
Serum Lipids	10 weeks	Subjects will have an Intravenous line placed and fasting blood will be drawn for a chemistry-15 panel and High-sensitivity C-reaction Protein. Subjects will then be given 75 grams of glucose to drink and blood will be drawn from an IV line for glucose and insulin.
Inflammation measured by highly sensitive C-reative protein test	10 weeks	A high-sensitivity CRP (hs-CRP), that can be done in the lab using a blood test.

Trial Locations

Locations (1)

Pennington Biomedical Research Center; 🇺🇸 Baton Rouge, Louisiana, United States