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Cardiovascular Outcomes Of Diet Counseling

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ClinicalTrials.gov Identifier: NCT00324545
Recruitment Status : Completed
First Posted : May 11, 2006
Last Update Posted : May 11, 2006
Sponsor:
Information provided by:
The Camelot Foundation

Brief Summary:
(1) What effect does behavioral counseling for vegan, for low to moderate fat, and for lowered carbohydrate diets have on coronary blood flow? (2) What are the effects of different diet protocols when caloric intake and exercise are equalized? (3) Do people, so counseled, maintain their modified behaviors after they have completed their diet program? (4) How does targeting different diets affect secondary indices associated with heart disease such as weight, lipid, inflammatory, and thrombotic factors?

Condition or disease Intervention/treatment Phase
Coronary Artery Disease Obesity Behavioral: Medium-intensity Minimally-directive Counseling Phase 2

Detailed Description:

Given the current epidemic of overweight and obesity on a global scale (“globesity”) and the consequent world public health objective of reducing that obesity, it is evident as a practical matter that, the main line of attack must be through diet. The public health objective and the lack of information regarding the long-term public health effects of alternative weight-loss diets motivated this comparative study of the three major types of weight-loss diets and their long term effects on coronary blood flow. Secondary endpoints are inflammatory and other variables associated with heart disease and obesity.

Specifically we asked: (1) What effect does behavioral counseling for vegan, for low to moderate fat, and for lowered carbohydrate diets have on coronary blood flow? (2) What are the effects of different diet protocols when caloric intake and exercise are equalized? (3) Do people, so counseled, maintain their modified behaviors after they have completed their diet program? (4) How does targeting different diets affect secondary indices associated with heart disease such as weight, lipid, inflammatory, and thrombotic factors?


Study Type : Interventional  (Clinical Trial)
Enrollment : 120 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double
Primary Purpose: Treatment
Official Title: Long-Term Adherence and Cardiovascular Outcomes of a Randomized Controlled Trial of Medium-Intensity Minimally-Directive Counseling for Different Diets
Study Start Date : January 2000
Study Completion Date : December 2002



Primary Outcome Measures :
  1. coronary blood flow

Secondary Outcome Measures :
  1. weight
  2. BMI
  3. LDLc
  4. Total Cholesterol
  5. HDLc
  6. Triglycerides
  7. Homocysteine
  8. Fibrinogen
  9. Lipoprotein (a)
  10. VLDLc
  11. TC/HDL
  12. TG/HDL (Insulin Resistance)
  13. CRP
  14. IL-6
  15. respiratory quotient


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Ages Eligible for Study:   30 Years to 59 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion criteria: BMI greater than 30,

Exclusion criteria: pre-existing co-morbid diseases (documented heart disease, diabetes mellitus, cancer, hypertension, hepatic, renal or gastrointestinal disease), pregnancy or plans for pregnancy. Participants could not be smokers (cigarettes, cigars, pipes or chewing tobacco), take medications (prescription or over the counter medications with the exception of antibiotics), nor take vitamin or mineral supplements. Additionally, they could not currently be on a diet or have been on one during the last 6 months, or have food allergies that would influence food choices.


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 ClinicalTrials.gov identifier (NCT number): NCT00324545


Locations
United States, Illinois
Keith Block
Chicago, Illinois, United States, 60201
United States, Nebraska
Richard M. Fleming, MD
Omaha, Nebraska, United States, 68114
Sponsors and Collaborators
The Camelot Foundation
Investigators
Principal Investigator: Richard M Fleming, MD Camelot Foundation
Principal Investigator: Gordon M Harrington, PhD University of Northern Iowa

Publications:
Bandura, A. (1986). Social foundations of thought and action: A social cognitive theory. xiii, 617.
Bandura, A. (1997). Self-efficacy: The exercise of control. ix, 604.
Fleming, R. M. (1999). The pathogenesis of vascular disease. In J. Chang (Ed.), The Textbook of Angiology (pp. 787-798). New York: Springer-Verlag.

ClinicalTrials.gov Identifier: NCT00324545     History of Changes
Other Study ID Numbers: 2000-1-1
First Posted: May 11, 2006    Key Record Dates
Last Update Posted: May 11, 2006
Last Verified: May 2006

Keywords provided by The Camelot Foundation:
Obesity
Diets
Heart Disease
Randomized controlled trial
Ischemia.

Additional relevant MeSH terms:
Coronary Artery Disease
Myocardial Ischemia
Coronary Disease
Heart Diseases
Cardiovascular Diseases
Arteriosclerosis
Arterial Occlusive Diseases
Vascular Diseases