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Sleep loss may worsen heart health and social bias in african americans

NCT ID NCT05166590

Knowledge-focused Sponsor: University of California, San Francisco Source: ClinicalTrials.gov ↗

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looked at how not getting enough sleep affects blood pressure and feelings of discrimination in 77 African American adults. Participants underwent sleep restriction and had their heart health measured during social tasks. The goal was to understand links between sleep, heart function, and social experiences.

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

77 people

The number who actually took part.

Started

Jun 2021

Finished

Oct 2025

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 64 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: * Age: 18 to old 64 years old * Self-identified African American/Black * English speaking, able to provide informed consent * Self-reported bedtime between 10 PM and 12 AM for 5/7 nights for the past 3-months (stability to be confirmed by actigraphy and sleep diary) * Self-reported sleep duration of between 6.5 and 8.5 hours for 5/7 nights for the last month (duration to be confirmed by actigraphy and sleep diary) Exclusion Criteria: * Aged greater than 64 years (to minimize age-related differences in sleep quantity and architecture). * Body mass index of 40 or above (to exclude for obesity, which can impair physiologic recording and confound study outcomes). * Presence of any clinical sleep disorder, including insomnia and obstructive sleep apnea (OSA), as assessed by validated screening measure. OSA will also be assessed objectively during the Sleep Screening period. * Medical or psychiatric condition, as assessed by self-report and clinical interview, that is likely to affect sleep/wake function or cardiovascular functioning, including doctor diagnosed arrhythmia, hypertension, congestive heart failure, major depression, bipolar disorder, post-traumatic stress disorder. * Medication use that is likely to affect sleep/wake function or cardiovascular functioning, including antidepressants, anxiolytic or soporific medication, and beta-blockers.

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Conditions

The condition(s) this trial relates to.

hypertensive disorder sleep disorder

As listed by the trial registrant

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

Blood pressure Sleep

Contacts and locations

Locations

  • University of California, San Francisco

    San Francisco, California, 94118, United States

More trials for these conditions

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