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Where you live could impact your heart, study says

NCT ID NCT04014348

Knowledge-focused Sponsor: National Heart, Lung, and Blood Institute (NHLBI) Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Aug 28, 2026 · Updated 10 times

Summary

This study looks at how stress from your neighborhood environment might affect heart health in women. Researchers will track 250 healthy women in Washington, DC, using smartphone surveys and wearable devices to measure stress and exercise. They will also use brain scans to see how stress affects the body. The goal is to understand why some women have higher heart disease risk based on where they live.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If successful, this study could help identify neighborhood factors that increase heart disease risk in women, guiding future public health interventions.
What could go wrong
This is an observational pilot study with only 250 participants, so findings may not apply to all women or other cities. It does not test a treatment.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 250 people

The number the study aims to enrol. It can still change while the study runs.

Started

Oct 2021

Expected to finish

Dec 2026

An estimate. End dates often move.

Lead sponsor

A government research agency

The lead sponsor is the US National Institutes of Health.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Recruitment will take place at both the NIH Clinical Center and at the NHLBI Hope Center. The proposed study will be cross-sectional with a sample of healthy White females (n=30) and healthy Black females of African descent (n=30) in Washington, DC. Participants will be asked to wear a GPS unit and accelerometer, and to use a smartphone (i.e., to measure perceived stress/mood via EMA) to examine associations between GIS-derived neighborhood variables, stress-related neural activity measures, and adverse biological markers. A sample of the women (n=30) will be recruited from the high SES census tracts within Washington, DC. The other participants (n=30) will be recruited from low SES census tracts in Washington DC. Finally, participants from high and low SES census tracts in Washington DC will be matched with respect to age, race, and body mass index \[BMI\].

Ages

19 to 45 years

Sex

Female participants only

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

* INCLUSION CRITERIA: Individuals eligible for this protocol: 1. A healthy self-identified White female (i.e. self-identifies as White or of European descent) or healthy Black female (i.e. self-identifies as Black, African American, or of African descent) 2. Must be between 19 to 45 years of age 3. Must not have any chronic health condition (i.e.: cardiovascular, autoimmune, endocrinologic), or active infection 4. Must be living in Washington, DC 5. Must have access to a smartphone 6. Must be able to provide informed consent 7. Must speak English. EXCLUSION CRITERIA: 1. Pregnant or breast feeding 2. Physically unable to perform physical activity for any reason 3. Subject had weight changes greater than 20% over the past 3 months 4. Subject is obese by our measurements (BMI greater than or equal to 35.0 kg/m\^2) 5. If you have high or low blood pressure requiring medications 6. Diabetes 7. History of severe mental illnesses, treated with hospitalization 8. If you have evidence of active thyroid disease requiring medications 9. If you are taking medication for chronic non-mental health related illness (ie: cardiovascular, autoimmune, endocrinologic) 10. If you have food allergies or highly restrictive diets that may prevent your ability to consume a controlled metabolic diet. 11. If you are a current smoker (tobacco products)

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Cardiovascular (CV) risk

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • National Institutes of Health Clinical Center

    RECRUITING

    Bethesda, Maryland, 20892, United States

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