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Why do african americans face more kidney problems? this study looks at exercise

NCT ID NCT03981640

Knowledge-focused Sponsor: University of Massachusetts, Boston Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Updated 2 times

Summary

This study compares kidney blood flow during exercise in healthy young African American and White adults. Researchers want to see if African Americans have a larger drop in kidney blood flow during physical activity, which could help explain higher rates of heart and kidney disease in this group. Participants will do cycling, cold water hand tests, and mental math during two lab visits.

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 explain why African American adults face higher rates of heart and kidney problems, guiding future prevention strategies.
What could go wrong
This is a small, early-stage observational study in healthy people, so findings may not apply to those with existing health conditions or lead directly to treatments.

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.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

33 people

The number who actually took part.

Started

Sep 2024

Finished

Apr 2026

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

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

Ages

18 to 35 years

Sex

Anyone

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: * Self-report as either African American or White racial identity * Born in United States * Both biological parents identify as same racial identity as participant * Recreationally active (participating in physical activity for at least 20 minutes per day, at least three times per week, but not training for competitive events) * Fluent in English Exclusion Criteria: * Hispanic or Latino * Females who are pregnant or lactating * Cardiovascular or renal disease * Hypertension (blood pressure of more than or equal to 130/80 mmHg) * Diabetes * Obesity (body mass index of more than or equal to 30 kg/m2) * Smoker/Tobacco user * Acute medical conditions * Taking prescribed cardiovascular, antihypertensive, or renal medications

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Conditions

The condition(s) this trial relates to.

Motor Activity Stress, Psychological

As listed by the trial registrant

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

Healthy

Contacts and locations

Locations

  • University of Massachusetts Boston

    Boston, Massachusetts, 02125, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.