Cardiovascular Outcomes Of Diet Counseling

July 20, 2020 updated by: RM Fleming, MD, The Camelot Foundation

Long-term Adherence and Cardiovascular Outcomes of a Randomized Controlled Trial of Medium-intensity Minimally-directive Counseling for Different Diets

(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 Overview

Status

Completed

Conditions

Intervention / Treatment

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

Enrollment (Actual)

120

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Illinois
      • Chicago, Illinois, United States, 60201
        • Keith Block
    • Nebraska
      • Omaha, Nebraska, United States, 68114
        • Richard M. Fleming, MD

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

30 years to 59 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

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.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

What is the study measuring?

Primary Outcome Measures

Outcome Measure
coronary blood flow

Secondary Outcome Measures

Outcome Measure
Fibrinogen
weight
CRP
BMI
Triglycerides
IL-6
LDLc
Total Cholesterol
HDLc
Homocysteine
Lipoprotein (a)
VLDLc
TC/HDL
TG/HDL (Insulin Resistance)
respiratory quotient

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

The Camelot Foundation

Collaborators

GM Harrington, PhD

Investigators

  • Principal Investigator: Richard M Fleming, MD, Camelot Foundation
  • Principal Investigator: Gordon M Harrington, PhD, University of Northern Iowa

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

January 1, 2000

Primary Completion (Actual)

December 31, 2002

Study Completion

December 31, 2002

Study Registration Dates

First Submitted

May 9, 2006

First Submitted That Met QC Criteria

May 9, 2006

First Posted (Estimate)

May 11, 2006

Study Record Updates

Last Update Posted (Actual)

July 21, 2020

Last Update Submitted That Met QC Criteria

July 20, 2020

Last Verified

July 1, 2020

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2000-1-1

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Documents we are uploading onto Clinical Trials site.

IPD Sharing Time Frame

We are uploading information onto the Clinical Trials site.

IPD Sharing Access Criteria

Direct email request may be made to primary email.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • ICF
  • ANALYTIC_CODE
  • CSR

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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