Cardiovascular Outcomes Of Diet Counseling

NCT ID: NCT00324545

Last Updated: 2020-07-21

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

120 participants

Study Classification

INTERVENTIONAL

Study Start Date

2000-01-01

Study Completion Date

2002-12-31

Brief Summary

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(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?

Detailed Description

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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?

Conditions

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Coronary Artery Disease Obesity

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors

Interventions

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Medium-intensity Minimally-directive Counseling

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion 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.
Minimum Eligible Age

30 Years

Maximum Eligible Age

59 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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GM Harrington, PhD

UNKNOWN

Sponsor Role collaborator

The Camelot Foundation

OTHER

Sponsor Role lead

Responsible Party

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RM Fleming, MD

PI

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Richard M Fleming, MD

Role: PRINCIPAL_INVESTIGATOR

Camelot Foundation

Gordon M Harrington, PhD

Role: PRINCIPAL_INVESTIGATOR

University of Northern Iowa

Locations

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Keith Block

Chicago, Illinois, United States

Site Status

Richard M. Fleming, MD

Omaha, Nebraska, United States

Site Status

Countries

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United States

References

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Bandura A. Self-efficacy: toward a unifying theory of behavioral change. Psychol Rev. 1977 Mar;84(2):191-215. doi: 10.1037//0033-295x.84.2.191. No abstract available.

Reference Type BACKGROUND
PMID: 847061 (View on PubMed)

Bandura, A. (1986). Social foundations of thought and action: A social cognitive theory. xiii, 617.

Reference Type BACKGROUND

Bandura, A. (1997). Self-efficacy: The exercise of control. ix, 604.

Reference Type BACKGROUND

Barnard RJ. Effects of life-style modification on serum lipids. Arch Intern Med. 1991 Jul;151(7):1389-94.

Reference Type BACKGROUND
PMID: 2064490 (View on PubMed)

Begg C, Cho M, Eastwood S, Horton R, Moher D, Olkin I, Pitkin R, Rennie D, Schulz KF, Simel D, Stroup DF. Improving the quality of reporting of randomized controlled trials. The CONSORT statement. JAMA. 1996 Aug 28;276(8):637-9. doi: 10.1001/jama.276.8.637. No abstract available.

Reference Type BACKGROUND
PMID: 8773637 (View on PubMed)

Cantwell MM, Millen AE, Carroll R, Mittl BL, Hermansen S, Brinton LA, Potischman N. A debriefing session with a nutritionist can improve dietary assessment using food diaries. J Nutr. 2006 Feb;136(2):440-5. doi: 10.1093/jn/136.2.440.

Reference Type BACKGROUND
PMID: 16424125 (View on PubMed)

Dansinger ML, Gleason JA, Griffith JL, Selker HP, Schaefer EJ. Comparison of the Atkins, Ornish, Weight Watchers, and Zone diets for weight loss and heart disease risk reduction: a randomized trial. JAMA. 2005 Jan 5;293(1):43-53. doi: 10.1001/jama.293.1.43.

Reference Type BACKGROUND
PMID: 15632335 (View on PubMed)

DAVIS CM. Self regulation of diet in childhood. Health Educ J (Los Angel). 1947 Jan;5:37-40. doi: 10.1177/001789694700500110. No abstract available.

Reference Type BACKGROUND
PMID: 20247154 (View on PubMed)

Fleming, R. M. (1999). The pathogenesis of vascular disease. In J. Chang (Ed.), The Textbook of Angiology (pp. 787-798). New York: Springer-Verlag.

Reference Type BACKGROUND

Fleming RM. The effect of high-protein diets on coronary blood flow. Angiology. 2000 Oct;51(10):817-26. doi: 10.1177/000331970005101003.

Reference Type BACKGROUND
PMID: 11108325 (View on PubMed)

Fleming RM. Reversing heart disease in the new millennium--the Fleming unified theory. Angiology. 2000 Aug;51(8):617-29.

Reference Type BACKGROUND
PMID: 10959514 (View on PubMed)

Fleming RM. The effect of high-, moderate-, and low-fat diets on weight loss and cardiovascular disease risk factors. Prev Cardiol. 2002 Summer;5(3):110-8. doi: 10.1111/j.1520-037x.2002.01231.x.

Reference Type BACKGROUND
PMID: 12091753 (View on PubMed)

Fleming RM, Ketchum K, Fleming DM, Gaede R. Treating hyperlipidemia in the elderly. Angiology. 1995 Dec;46(12):1075-83. doi: 10.1177/000331979504601202.

Reference Type BACKGROUND
PMID: 7495312 (View on PubMed)

Fleming RM, Ketchum K, Fleming DM, Gaede R. Assessing the independent effect of dietary counseling and hypolipidemic medications on serum lipids. Angiology. 1996 Sep;47(9):831-40. doi: 10.1177/000331979604700901.

Reference Type BACKGROUND
PMID: 8810649 (View on PubMed)

Other Identifiers

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2000-1-1

Identifier Type: -

Identifier Source: org_study_id

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