Comparison of Two Approaches to Weight Loss Follow-Up Study

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00143962
Recruitment Status : Completed
First Posted : September 2, 2005
Last Update Posted : August 17, 2016
National Institutes of Health (NIH)
Information provided by:
University of Pennsylvania

Brief Summary:

This is a follow-up research study to determine if there are any differences in the long-term maintenance of two diet groups, the Atkins' diet (low-carbohydrate) or the LEARN program (low-fat). The Atkins' diet continues to get a significant amount of popular attention and very little scientific evaluation. Due to the small amount of scientific data to support a low-carbohydrate diet and given the wide spread use of this type of diet, it is important to evaluate the long-term safety and effectiveness of the Atkins' diet.

We will evaluate whether there are any differences between these two groups 3-years after participation in the initial 1-year study period. We will specifically assess weight, cholesterol levels, glucose and insulin levels, and eating habits and mood as we did originally.

Condition or disease Intervention/treatment Phase
Obesity Behavioral: Low Carbohydrate Diet Phase 4

Detailed Description:
***PLEASE NOTE: Only those who participated in the original study of low carbohydrate and low fat diets are eligable for enrollment in this follow-up study***

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 6 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Comparison of Two Approaches to Weight Loss Follow-Up Study
Study Start Date : July 2004
Actual Primary Completion Date : March 2006
Actual Study Completion Date : March 2006

Resource links provided by the National Library of Medicine

U.S. FDA Resources

Primary Outcome Measures :
  1. Obesity

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 65 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria

  • Body mass index between 30 and 40
  • Live and work within 1 hour of the study site
  • Stable psychological status Exclusion criteria
  • History of heart disease, heart attack, or stroke
  • Blood pressure >140/90 mmHg
  • Abnormal cholesterol levels
  • Significant psychiatric illness
  • Any medication that affects weight or metabolic rate
  • Presence or history of a chronic disease that is known to affect appetite, food intake, or metabolism (i.e., diabetes, thyroid disease, or cancer)
  • Currently using antidepressants, steroids, tobacco, or illegal drugs
  • Pregnant, breastfeeding, or planning pregnancy
  • 10 lb change in weight within 6 months of study entry
  • History of malignant arrhythmias or cerebrovascular, renal, or hepatic disease
  • History of protein wasting diseases or gout
  • Severe arthritis
  • Osteoporosis
  • Certain types of hormone replacement therapy
  • Currently following a vegetarian diet

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00143962

United States, Colorado
University of Colorado
Denver, Colorado, United States
United States, Missouri
Washington University
St. Louis, Missouri, United States
United States, Pennsylvania
University of Pennsylvania
Philadelphia, Pennsylvania, United States
Sponsors and Collaborators
University of Pennsylvania
National Institutes of Health (NIH)
Principal Investigator: Gary Foster, PhD University of Pennsylvania
Principal Investigator: Holly Wyatt, MD University of Colorado, Denver
Principal Investigator: James Hill, PhD University of Colorado, Denver
Principal Investigator: Samuel Klein, MD Washington University School of Medicine

Publications: Identifier: NCT00143962     History of Changes
Obsolete Identifiers: NCT00200811
Other Study ID Numbers: 801787
First Posted: September 2, 2005    Key Record Dates
Last Update Posted: August 17, 2016
Last Verified: August 2016

Keywords provided by University of Pennsylvania:
Weight Loss

Additional relevant MeSH terms:
Weight Loss
Body Weight Changes
Body Weight
Signs and Symptoms