Obesity Clinical Trial - The Effects of Leucine on Body Weight

Status Completed

Clinical Trial Summary

Protein-rich diets appear to show some benefits in promoting weight loss. It is thought that increased intake of leucine may account for some of this effect. This study is designed to assess whether any of the beneficial effects of dietary leucine supplementation observed in mice also apply to humans.

Specifically, our team would like to determine whether oral leucine supplementation in overweight/obese humans increases metabolic rate, reduces body weight, improves glucose utilization and/or, reduces circulating fat levels in the blood. We hope that the results obtained from this pilot study will highlight the specific aspects of metabolic improvement associated with increased daily leucine intake. This study will should provide data that can be used to design more definitive trials with regard to dietary leucine supplementation.

Hypothesis

This pilot study is designed to accomplish the following two goals:

1. to assess whether any of the beneficial effects of dietary leucine supplementation observed in mice also apply in humans. Specifically, we want to determine whether oral leucine supplementation in overweight/obese individuals' increases basal metabolic rate, reduces body weight, improves glucose tolerance and/or insulin sensitivity, and/or reduces circulating Low-density Lipoprotein (LDL)-cholesterol levels.

2. To provide data that can be used to design more definitive trials with regard to dietary leucine supplementation.

We hope that the results obtained from this pilot study will highlight the specific aspects of metabolic improvement associated with increased daily leucine intake. This would in turn lead to more rigorous clinical trials involving larger sample sizes, and with diverse populations of different gender, age, and ethnic groups. Future trials may also be directed to determine minimal doses and durations of leucine supplementation that are capable of achieving clinically significant improvement in the cardio-metabolic risk profile in people.

Clinical Trial Description

n/a

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Crossover Assignment, Masking: Double Blind (Subject, Investigator, Outcomes Assessor), Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT00683826
Study type	Interventional
Source	Columbia University
Contact
Status	Completed
Phase	N/A
Start date	May 2007
Completion date	February 2010

View Details

See also
Status	Clinical Trial	Phase
Recruiting	`NCT04101669` - EndoBarrier System Pivotal Trial(Rev E v2)	N/A
Recruiting	`NCT04243317` - Feasibility of a Sleep Improvement Intervention for Weight Loss and Its Maintenance in Sleep Impaired Obese Adults	N/A
Terminated	`NCT03772886` - Reducing Cesarean Delivery Rate in Obese Patients Using the Peanut Ball	N/A
Completed	`NCT03640442` - Modified Ramped Position for Intubation of Obese Females.	N/A
Completed	`NCT04506996` - Monday-Focused Tailored Rapid Interactive Mobile Messaging for Weight Management 2	N/A
Recruiting	`NCT06019832` - Analysis of Stem and Non-Stem Tibial Component	N/A
Active, not recruiting	`NCT05891834` - Study of INV-202 in Patients With Obesity and Metabolic Syndrome	Phase 2
Active, not recruiting	`NCT05275959` - Beijing (Peking)---Myopia and Obesity Comorbidity Intervention (BMOCI)	N/A
Recruiting	`NCT04575194` - Study of the Cardiometabolic Effects of Obesity Pharmacotherapy	Phase 4
Completed	`NCT04513769` - Nutritious Eating With Soul at Rare Variety Cafe	N/A
Withdrawn	`NCT03042897` - Exercise and Diet Intervention in Promoting Weight Loss in Obese Patients With Stage I Endometrial Cancer	N/A
Completed	`NCT03644524` - Heat Therapy and Cardiometabolic Health in Obese Women	N/A
Recruiting	`NCT05917873` - Metabolic Effects of Four-week Lactate-ketone Ester Supplementation	N/A
Active, not recruiting	`NCT04353258` - Research Intervention to Support Healthy Eating and Exercise	N/A
Completed	`NCT04507867` - Effect of a NSS to Reduce Complications in Patients With Covid-19 and Comorbidities in Stage III	N/A
Recruiting	`NCT03227575` - Effects of Brisk Walking and Regular Intensity Exercise Interventions on Glycemic Control	N/A
Completed	`NCT01870947` - Assisted Exercise in Obese Endometrial Cancer Patients	N/A
Recruiting	`NCT05972564` - The Effect of SGLT2 Inhibition on Adipose Inflammation and Endothelial Function	Phase 1/Phase 2
Recruiting	`NCT06007404` - Understanding Metabolism and Inflammation Risks for Diabetes in Adolescents
Recruiting	`NCT05371496` - Cardiac and Metabolic Effects of Semaglutide in Heart Failure With Preserved Ejection Fraction	Phase 2

Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.