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Blood test may predict your fitness level

NCT ID NCT07393841

Knowledge-focused Sponsor: VO Health, Inc. 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026

Summary

This study looks at how well a blood test can predict a person's fitness level, measured by VO₂max. Researchers will collect blood samples and fitness data from 250 healthy adults. The goal is to see if certain molecules in the blood can accurately estimate how fit someone is, and how these markers change with age, sex, and exercise.

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

Jan 2026

Expected to finish

May 2028

An estimate. End dates often move.

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.

Who is studied

The study population includes adults from the general community who are interested in health and fitness assessment. Participants are anticipated to primarily be athletes or recreational exercisers. This study does not specifically target clinical populations; however, individuals with stable medical conditions may participate if they have documented medical clearance to safely undergo maximal exercise testing.

Ages

18 years and older

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: * Be ≥18 years old * Be able to understand and provide informed consent (English; additional languages may be added via amendment with translated materials) * Be willing to complete VO₂max testing, blood draw, and questionnaires. * Be able to safely perform maximal/symptom-limited exercise testing as determined by: PAR-Q+ screening and investigator review (included as an attachment) and resting vitals screening (heart rate) Exclusion Criteria: * Conditions that, in the investigator's judgment, or a medical doctor, makes maximal exercise testing unsafe (e.g., unstable cardiovascular symptoms) * Contraindications or unwillingness to undergo venipuncture * Acute illness (fever, significant respiratory illness) at the time of testing * Failure to comply with procedures.

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Conditions

The condition(s) this trial relates to.

tinea pedis

As listed by the trial registrant

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

Aging Athlete Exercise physiology Fitness testing Healthy adult Human performance

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

  • VO Health, Inc.

    RECRUITING

    New Haven, Connecticut, 06510, United States

More trials for these conditions

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