Heart Health Study in Washington D.C. to Develop a Community-Based Behavioral Weight Loss Intervention

June 4, 2026 updated by: National Heart, Lung, and Blood Institute (NHLBI)

Cardiovascular Health and Needs Assessment in Washington D.C. - Development of a Community-Based Behavioral Weight Loss Intervention

Background:

- Past studies suggest that the best way to improve heart health in the Black community is through community-based programs. Researchers will partner with DC community leaders. They will collect information about the health and health needs of people in mostly Black churches in DC. They will study things that affect heart health, like diabetes, blood pressure, cholesterol, and weight. They will also study how technology can keep track of activities and health. The information will show the health needs of church-based communities or faith-based organizations.

Objectives:

- The primary objective of this study is to estimate the percentage of the population that meet ideal, intermediate, and poor criteria for each of the cardiovascular health factors (BMI, physical activity, dietary intake, blood pressure, total cholesterol, fasting plasma glucose, and cigarette smoking) in churches or faith-based organizations in the DMV area. This data will inform the design and implementation of a behavioral weight-loss intervention within the faith-based community immediately following this study.

The secondary objectives are to: 1) evaluate usage of handheld devices for objectively measuring physical activity and dietary intake; 2) evaluate usage of web-based technology for monitoring cardiovascular health markers, including dietary intake; 3) examine referral methods for untreated hypertension, diabetes, and hypercholesterolemia; 4) compare lifestyle behaviors across levels of psychosocial factors, cultural norms, and neighborhood environment factors; and 5) formalize a community advisory board involved in the implementation of the health screening and needs assessment program and a future behavioral weight-loss intervention.

Eligibility:

- Adults ages 19 to 85 who attend one of the study churches.

Design:

  • Participants will visit their church for a 4-hour health exam. They will have their blood pressure and body measurements taken. They will have a drop of blood taken from their finger with a small needle. This blood will be tested for blood sugar and cholesterol. Participants will be given the results of these tests.
  • Participants will answer questions about their health.
  • All participants will be given an activity monitor to wear for 1 month. The activity monitor is worn around the wrist. Some participants will also receive an activity monitor that is worn around the waist. Participants will be given instructions on how to wear the activity monitors and follow the results on a website.
  • At the end of 1 month, participants will return one device (they can keep the other). They may receive a gift card for completing the study.

Study Overview

Status

Recruiting

Conditions

Detailed Description

Obesity leads to an increased risk of cardiovascular risk factors and death from cardiovascular disease. Therefore, interventions that slow or reverse the obesity epidemic are essential. Community-based interventions can reach those most at risk for obesity and obesity-related cardiovascular risk factors. Interventions based on community-based participatory research (CBPR) principles develop in collaboration with community partners, allowing an intervention s components to be tailored to the unique needs of the community members. To remain consistent with CBPR principles, a community assessment is necessary to understand the needs of the target population. Therefore, we propose a cardiovascular health screening and needs assessment of a sample population from churches or faith-based organizations in DC, Maryland, and Virginia where obesity prevalence is highest and resources for physical activity and healthy nutrition are most limited. The screening will involve measuring cardiovascular health factors such as body mass index (BMI), physical activity, dietary intake, total cholesterol, blood pressure, fasting plasma glucose, and cigarette smoking. Based on American Heart Association-established goals, cardiovascular health factors can be defined as ideal, intermediate, or poor, depending on control of risk factors and lifestyle behaviors. In this protocol, we will determine the prevalence of ideal, intermediate, and poor cardiovascular health factors within the church or faith-based organization population. We hypothesize that the percentage of the church or faith-based organization population that meets ideal criteria for each of the cardiovascular health factors will be lower than the percentage meeting intermediate and poor criteria for the cardiovascular health factors. In addition, we will evaluate the use of handheld technology for objectively measuring physical activity and the use of web-based technology for monitoring cardiovascular health factors within the population. We will also evaluate social determinants of health, particularly psychosocial and environmental factors that might hinder weight loss. Finally, we will establish a community advisory board to consult on the planning and implementation of the assessment, and the interpretation and dissemination of study findings. The results of this community-based, cardiovascular health and needs assessment will inform the design and implementation of a future community-based behavioral weight loss intervention.

Study Type

Observational

Enrollment (Estimated)

200

Contacts and Locations

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

Study Contact

Study Contact Backup

Study Locations

  • United States
    • Maryland
      • Bethesda, Maryland, United States, 20892
        • Recruiting
        • National Institutes of Health Clinical Center

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

19 years to 85 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Sampling Method

Non-Probability Sample

Study Population

This observational study will may involve cardiovascular health factor screening, administration of a survey, and evaluating usage of handheld and web-based technology related to physical activity, dietary intake, and cardiovascular health for one-month intervals through the duration of the study (for a maximum of 6 months) for a convenience sample of participants recruited from churches in Wards 5, 7, or 8 in Washington D.C and in neighboring Prince George s County.

Description

  • INCLUSION CRITERIA:

Individuals eligible for this protocol are aged 19 - 85 years, have attended or visited any church or faith-based organization in DC, Maryland, or Virginia, and are able to provide informed consent independently. Eligible participants should also speak and read English at the 8th grade level.

EXCLUSION CRITERIA:

Women in their second or third trimester of pregnancy at the time of enrollment will be excluded from the protocol.

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

  • Observational Models: Ecologic or Community
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
Group 1
Healthy Volunteer
Group 2
Focus Group- Neighborhood and Physical Activity
Group 3
Focus Group
Group 4
Focus Group- Mobile App
Group 5
Consent for Cooking Survey Focus Group
Group 6
Community Organization Survey focus Group

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
estimate CVD risk factors in Ward 5,7,8
Time Frame: ongoing
data will inform the design and implementation of a behavioral weight-loss intervention within the faith-based community immediately following this study
ongoing

Collaborators and Investigators

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

Sponsor

National Heart, Lung, and Blood Institute (NHLBI)

Investigators

  • Principal Investigator: Tiffany M Powell-Wiley, M.D., National Heart, Lung, and Blood Institute (NHLBI)

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

Helpful Links

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)

February 8, 2014

Primary Completion (Estimated)

December 20, 2026

Study Registration Dates

First Submitted

August 20, 2013

First Submitted That Met QC Criteria

August 20, 2013

First Posted (Estimated)

August 23, 2013

Study Record Updates

Last Update Posted (Actual)

June 5, 2026

Last Update Submitted That Met QC Criteria

June 4, 2026

Last Verified

June 3, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 130183
  • 13-H-0183

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

IPD Plan Description

It is not yet known if there will be a plan to make IPD available

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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