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Long-COVID mystery: new study aims to decode patient subtypes

NCT ID NCT07356570

Knowledge-focused Sponsor: Hospices Civils de Lyon 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 150 adults with long-COVID to group them by their symptoms and link those groups to lab results. The goal is to find patterns that could help doctors predict outcomes and discover new treatments. Participants will have their health data and blood samples analyzed over time.

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 150 people

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

Started

Jun 2025

Expected to finish

Jun 2026

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

his study involves adult patients (≥18 years) with documented SARS-CoV-2 infection referred to a multidisciplinary post-COVID care pathway. Participants present persistent or complex symptoms beyond 4 weeks or 3 months. Recruitment occurs at Hôpital Henry Gabrielle (rehabilitation unit) and Hôpital Lyon Sud (pulmonology department). Patients are enrolled during their regular clinical follow-up. Clinical and biological data are collected at a single inclusion visit.

Ages

18 years and older

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: * Documented SARS-CoV-2 infection * Persistent or complex post-COVID symptoms lasting more than 4 weeks or more than 3 months * Patient referred to the EPSILON pathway or to the post-COVID rehabilitation unit * Age ≥ 18 years * Non-institutionalized * Expected survival greater than 6 months Exclusion Criteria: * Refusal to participate or to share data * Uncontrolled comorbidities * Pregnant or breastfeeding women * Persons under legal protection or deprived of liberty * Not affiliated with the French national health insurance system

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Conditions

The condition(s) this trial relates to.

long COVID-19

As listed by the trial registrant

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

Post-acute 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

    2 sites. 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

  • Hôpital Henry Gabrielle-HCL

    RECRUITING

    Saint-Genis-Laval, 69230, France

  • Service Pneumologie aigue spécialisée et cancérologie thoracique

    RECRUITING

    Pierre-Bénite, 69 495, France

More trials for these conditions

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