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Massive study aims to stop wasting donated kidneys worldwide

NCT ID NCT07341516

Knowledge-focused Sponsor: Paris Translational Research Center for Organ Transplantation 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tracks 300,000 donated kidneys from 2010 to 2025 across many countries. Researchers want to see why some kidneys are discarded and how to use them better. The goal is to help more people get transplants and reduce organ waste.

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 could help hospitals and policymakers use donated kidneys more efficiently, potentially giving more people life-saving transplants.
What could go wrong
This is an observational study, not a treatment trial. It won't directly help any participant, and its recommendations may not work in every country or hospital.

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 300,000 people

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

Started

Nov 2025

Expected to finish

Nov 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

All kidneys recovered for transplantation from deceased donors (brain death or circulatory death) between January 1, 2010, and December 31, 2025, across 10 allocation systems, with sufficient data to calculate the Kidney Donor Risk Index. Recipients of transplants from these donors will also be included for outcome assessment.

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: * All consecutive kidneys recovered for the purpose of transplantation from donors deceased from brain death or circulatory death between January 1, 2010 and December 31, 2025 Exclusion Criteria: * Kidneys offered to transplant centers but never recovered * Living renal transplants * Multiorgan transplant recipients

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Conditions

The condition(s) this trial relates to.

kidney failure

As listed by the trial registrant

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

Deceased donor kidney transplant Kidney failure Kidney transplant

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 in 2 countries. The list below names each one and where it is.

  2. The official record

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    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

  • Paris Institute for Transplantation and Organ Regeneration, INSERM, UMR-S970, Paris, France

    Paris, 75015, France

  • Vanderbilt Center for Transplant Science, Vanderbilt University Medical Center, Nashville, TN, USA

    Nashville, Tennessee, 37232, United States

More trials for these conditions

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