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New registry tracks kidney damage in COVID-19 patients

NCT ID NCT04797091

Knowledge-focused Sponsor: University of Cologne 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 completed registry study collected data from 500 COVID-19 patients to learn how the virus affects kidney function. Researchers aimed to identify risk factors and track outcomes. The findings may help guide future treatment and care for kidney complications in COVID-19.

What this could mean

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

What this could lead to
If successful, this registry could help doctors better understand how COVID-19 affects the kidneys and identify patients at higher risk.
What could go wrong
This is an observational study, not a treatment trial. It collects existing data and cannot directly improve patient outcomes.

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

500 people

The number who actually took part.

Started

Apr 2020

Finished

Aug 2025

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

Particularly, controls will be identified retrospectively at the same hospitals that based on matching of demographics, underlying diseases and duration of hospitalization (i.e. one control per case, both in the same hospital).

Ages

Children (under 18), adults (18 to 64) and older adults (65 and over)

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: * Virology evidence of SARS-CoV-2-infection * Pathological evidence of SARS-CoV-2-infection Exclusion Criteria: * Occurrence of ARDS (acute respiratory distress syndrome) without evidence of SARS-CoV-2 infection * Acute kidney injury without evidence of SARS-CoV-2 infection

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Conditions

The condition(s) this trial relates to.

Coronavinae infectious disease COVID-19 Orthocoronavirinae infectious disease

As listed by the trial registrant

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

Corona virus infection SARS-CoV-2

Contacts and locations

Locations

  • University Hospital of Cologne

    Cologne, 50937, Germany

More trials for these conditions

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