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Body clock may hold key to long COVID recovery

NCT ID NCT07545499

Knowledge-focused Sponsor: Hacettepe University Source: ClinicalTrials.gov ↗

What the study statuses mean

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 different sleep-wake patterns (called circadian rhythms) affect breathing strength, physical activity, and eating habits in people with Post-COVID syndrome. Researchers will study 50 adults aged 18-65 who have been diagnosed with long COVID. The goal is to learn how body clock differences might help create personalized recovery plans.

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 50 people

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

Started

May 2025

Expected to finish

May 2027

An estimate. End dates often move.

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.

Who is studied

The study population consists of post-COVID-19 syndrome patients aged 18-65 years who are referred to the Hacettepe University Cardiopulmonary Rehabilitation Unit. Participants will be classified into morning-type and evening-type chronotypes.

Ages

18 to 65 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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: * Diagnosed with Post-COVID-19 Syndrome * Aged between 18-65 years * Able to read and understand Turkish * Voluntary participation * Classified as Post-Covid Functional Status Scale (PCFS) grade 2-3 * Clinically stable condition * No uncontrolled comorbidities (e.g., hypertension, diabetes under control) * No orthopedic or neurological conditions affecting exercise testing Exclusion Criteria: * Recent myocardial infarction or pulmonary embolism * Severe uncontrolled chronic diseases * Neurological or orthopedic conditions limiting mobility * Psychiatric or neurological disorders affecting cooperation or test compliance * Inability to complete assessments

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Conditions

The condition(s) this trial relates to.

long COVID-19 Motor Activity post-COVID-19 disorder

As listed by the trial registrant

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

Post-COVID-19 syndrome

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

  • Hacettepe University Faculty of Physical Therapy and Rehabilitation

    RECRUITING

    Ankara, Altindağ, 06100, Turkey (Türkiye)

More trials for these conditions

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