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Where does the BK virus come from? new study aims to find out

NCT ID NCT07347769

Knowledge-focused Sponsor: University Hospital, Grenoble 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 100 kidney transplant patients to understand where the BK virus comes from and why some people get sicker than others. Researchers will compare the virus in patients and their donors, and check how the immune system responds. The goal is to find better ways to predict who is at risk for kidney damage.

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 100 people

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

Started

Mar 2026

Expected to finish

Sep 2030

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

Kidney transplant patients with a first positive BK virus viral load in urine during the 2 years after the graft

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: * Kidney transplant patients with a first positive BK virus viral load in urine. - BK virus viral load in urine \> 3 log copies/mL. * More than 3 months post-transplant and less than 2 years post-transplant. * Men or women aged 18 years and older. * Followed up at Grenoble Alpes University Hospital. * Affiliated with social security or beneficiary of such a scheme. * Patients who are not opposed to the TYPIK study. Exclusion Criteria: * Expected renal graft survival is \< 6 months, estimated by an eGFR \< 15 mL/min/1.73 m² at the time of BKPyV viruria * Patients who object to the use of their data and/or samples for research purposes * Subjects who are excluded from another study * Subjects under administrative or judicial supervision

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Conditions

The condition(s) this trial relates to.

BK-virus nephropathy kidney disorder opportunistic infectious

As listed by the trial registrant

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

BK nephropathy BK polyomavirus BK viremia; BKV dnaemia BK virus infection Immune response Nephropathy Neutralizing antibodies Opportunistic viral infection Polyoma virus nephropathy

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

  • CHUGA

    RECRUITING

    Grenoble, 38000, France

More trials for these conditions

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