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Completed

NCT Number: NCT00726908

Intramuscular Lipid and Insulin Action:Ethnic Aspects

High levels of the hormone insulin are associated with risk for heart disease and diabetes, and may make it hard to lose weight. The types of food eaten may affect insulin levels. The purpose of this study is to determine if manipulation of dietary carbohydrate content improves insulin sensitivity (Si), augments weight loss, and promotes weight loss maintenance in healthy adults.

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Key information

Conditions

Obesity Body Weight Glucose Metabolism Disorders Hyperinsulinism Insulin Resistance Metabolic Diseases Nutrition Disorders Nutritional and Metabolic Diseases Overnutrition Overweight Pathological Conditions, Signs and Symptoms Signs and Symptoms

Age range

21 year–50 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of Alabama at Birmingham

Birmingham, Alabama, 35294, United States

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Overweight, age 21-50 years,Women must be premenopausal, Normal glucose tolerance, weight stable for at least 6 months with a weight change no greater than 5 lbs.

Exclusion criteria

Exclusion criteria

were type 1 or type 2 diabetes, polycystic ovarian disease, BMI <26.5 or weight >300 pounds, weight change >5 pounds in last 6 months, regular exercise >2 hours per week, pregnancy, currently breastfeeding, cholesterol medications, any disorders of glucose or lipid metabolism, use of medication that could affect body composition or glucose metabolism (including oral contraceptives and blood pressure medications), current use of tobacco, use of illegal drugs in last 6 months, history of hypoglycemic episodes, major food allergies or food dislikes, women with inconsistent or absence of monthly menstrual cycles, and a medical history that counter-indicated inclusion in the study.

Treatment and study plan

Low carbohydrate

Dietary Supplement

43% CHO

Primary outcomes

  1. Insulin sensitivity

    Time frame: IVGTT and minimal model

Secondary outcomes

  1. Weight loss

    Time frame: Weight loss over 8 weeks

Sponsors and collaborators

Lead sponsor

University of Alabama at Birmingham

Other

Collaborators

  • National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

Registry information

Acronym: QuEST

Important dates

Study start
2007
Primary completion
2009
Study completion
2009
First posted
Aug 1, 2008
Registry last updated
Jun 15, 2012

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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