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Massive dutch study reveals long COVID's lasting toll

NCT ID NCT05240742

Knowledge-focused Sponsor: Maastricht University Medical Center 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study followed over 4,200 Dutch COVID-19 patients for up to two years to learn about long COVID symptoms like exhaustion, breathing problems, and mental health issues. Researchers also looked at how these symptoms affect quality of life and what factors might predict who gets long COVID. The goal was to better understand the condition and create tools to help patients track their recovery.

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

4,291 people

The number who actually took part.

Started

Oct 2021

Finished

Nov 2024

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 Dutch (former) COVID-19 patients and non-COVID-19 controls, who have been included in one of the cohorts and categorized in five subgroups: * Patients who suffered from (confirmed) COVID-19 and were admitted to the hospital ward. * Patient who suffered from (confirmed) COVID-19 and were admitted to the ICU. * Patients who suffered from (confirmed or suspected) COVID-19 at home. * Patients who suffered from (confirmed) COVID-19 and were in need of inpatient or outpatient rehabilitation after infection at home or in the hospital (ward and/or ICU). * Controls who did not suffer from (confirmed or suspected) COVID-19.

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.

All 7 existing cohorts have specific inclusion and exclusion criteria. For the CORFU study, in general, the criteria are: Patients with proven or suspected COVID-19: * Confirmed (or suspected) COVID-19 - both home-isolated patients and patients who were admitted to the hospital ward and/or ICU; * Included in one of the seven cohorts from March 2020 onwards; * Aged 18 years or older; * Mastering the Dutch language sufficiently to answer the questionnaires; * Informed consent. Controls who did not experience COVID-19: * Aged 18 years or older; * Mastering the Dutch language sufficiently to answer the questionnaires; * Informed consent. There were no exclusion criteria.

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Conditions

The condition(s) this trial relates to.

COVID-19 long COVID-19 post-COVID-19 disorder

As listed by the trial registrant

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

COVID -19 Long COVID Post-COVID-19 condition

Contacts and locations

Locations

  • Maastricht University Medical Center+

    Maastricht, 6229HX, Netherlands

More trials for these conditions

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