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Can an app get african american men moving? new study tests FitBrothers

NCT ID NCT05621044

Knowledge-focused Sponsor: Klein Buendel, Inc. Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested a smartphone app called FitBrothers designed to help African American men start and maintain physical activity. Thirty-six men used the app, which included goal setting, rewards, and health tips. The goal was to see if the app could increase daily steps and improve health measures like weight and blood pressure over nine months.

What this could mean

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

Active substance
FitBrothers smartphone app (behavioural intervention)
What this could lead to
If successful, this app could offer a practical way to help African American men stay active and reduce health risks like heart disease.
What could go wrong
This was a small, early study with only 36 men. The app may not work for everyone, and long-term benefits are not yet proven.

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

36 people

The number who actually took part.

Started

May 2024

Finished

Jan 2026

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

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

Ages

30 years and older

Sex

Male 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.

Comparative Effectiveness Trial (CET) Inclusion criteria: * self-identified African American male * at least 30 years of age * BMI \> 18.5 kg/m2 and \< 45 kg/m2 * resting systolic blood pressure # 159 mmHg and a diastolic blood pressure # 99 (to reduce risk of exercise-induced cardiovascular events) * free of significant medical problems that would impact their ability to engage in aerobic and/or resistance training * owns a smartphone * sedentary at baseline (not being physically active ≥3 d·wk-1 for 20 min each time for the previous 6 months, not participating in regular resistance exercise, and having an average daily accelerometer step count less than the 50th percentile for age and gender). Comparative Effectiveness Trial (CET) Exclusion criteria: * unwilling to give written informed consent * conditions that prevent regular exercise * conditions that the medical or principal investigator determine to warrant exclusion

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Conditions

The condition(s) this trial relates to.

Health Behavior Motor Activity

As listed by the trial registrant

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

Exercise Health behavior Technology

Contacts and locations

Locations

  • Georgetown University

    Washington D.C., District of Columbia, 20057, United States

  • Klein Buendel, Inc.

    Golden, Colorado, 80401, United States

  • Pennington Biomedical Research Center

    Baton Rouge, Louisiana, 70808, United States

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