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New drug shows promise for slowing kidney disease in alport syndrome

NCT ID NCT06425055

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested a drug called vonafexor in 26 people with Alport syndrome, a genetic condition that damages kidneys. The goal was to see if the drug is safe and if it can help protect kidney function. Participants took increasing doses over 24 weeks. The study is now complete, and results will show whether vonafexor might be a future treatment option.

What this could mean

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

Active substance
Vonafexor (also called EYP001a), an oral drug taken as a tablet once daily
What this could lead to
If it works, this could point toward a treatment to slow kidney decline in Alport syndrome, potentially delaying the need for dialysis or transplant.
What could go wrong
This is a small, early proof-of-concept study with only 26 participants, so results may not apply to everyone. The drug may not improve kidney function or could cause side effects.

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.

Phase

Phase 2

Tests whether the treatment actually works, and watches for side effects, in a larger group.

Participants

26 people

The number who actually took part.

Started

Aug 2024

Finished

Nov 2025

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

16 to 55 years

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: * Signed informed consent (also for legal representatives, as applicable in the US for under eighteen patients). * Has confirmed diagnosis of Alport syndrome: clinical diagnosis (haematuria, family history, hearing loss, ocular change) OR a kidney biopsy showing glomerular basement membrane abnormalities consistent with AS, AND Genetic confirmation of AS. * Has eGFR between ≥ 30 and \< 90 ml/min/1.73m2. * Has increased albuminuria criteria i.e. UACR ≥ 300 mg/g. * If on an angiotensin converting enzyme inhibitor (ACEi) and/or angiotensin receptor blocker (ARB), should be on a stable well tolerated treatment during at least the 60 days prior D1. * If on Sodium-Glucose Transport Protein 2 (SGLT2), should be on stable well tolerated treatment with SGLT2 during at least 60 days prior D1. * If patient has a history of arterial hypertension, should be on stable anti-hypertensive therapy for at least 60 days prior to D1 and deemed controlled by the investigator at screening and D1. * Sexually active female subjects of childbearing potential and sexually mature male subjects must use two acceptable effective methods of contraception for the entire duration of the study and for at least 6 weeks after last dose. * Has negative results for hepatitis B surface antigen (HBsAg), hepatitis C virus (HCV) antibody, and human immunodeficiency virus (HIV). * Is able to understand all study procedures in the informed consent form (ICF) and willing to comply with all aspects of the protocol. Exclusion Criteria: * Is an employee of a site, clinical research organization, vendor, or sponsor involved with this study. * Is pregnant or breastfeeding. * Has participated in any investigational drug study within 60 days prior to D1. * Any clinically significant illness within 30 days before D1 or surgical or medical condition (other than Alport syndrome) that could interfere with the subject's study compliance; confound the study results; impact subject safety. * Any history of active malignancy within the last 1 year before D1. * Any other condition or circumstance that, in the opinion of the investigator, may make the subject unlikely to complete the study or comply with study procedures and requirements, or may pose a risk to the subject's safety and well-being. * Has a history of an allergic condition that required the prescription of an emergency epinephrine injection (such as the EpiPen® Auto-Injector). * Any prohibited co-medications within 30 days prior D1. * Has ALT or AST above near normal (\>1.5×ULN) at baseline. * Are at high risk for atherosclerotic cardiovascular disease (ASCVD) risk, with an LDL-C level \> 160 mg/dL (4.15 mmol/L) and subjects at intermediate risk for ASCVD risk, with a LDL-C level \> 190 mg/dL (4.91 mmol/L). * Has moderate or severe hepatic impairment (Child-Pugh score B or C). * Is taking CYP3A4/5 inhibitors or inducers.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

Contacts and locations

Locations

  • Dr Anjay Rastogi - UCLA Health, David Geffen School of Medicine

    Los Angeles, California, 90095, United States

  • Dr Ankit Mehta - Renal Disease Research Institute

    Dallas, Texas, 75126, United States

  • Dr Arnold Silva - Boise Kidney & Hypertension

    Boise, Idaho, 83703, United States

  • Dr Eric Wallace - University of Alabama

    Birmingham, Alabama, 35294, United States

  • Dr James Simon - Cleveland Clinic Foundation

    Cleveland, Ohio, 44195, United States

  • Dr Moglie Le Quintrec - Hopital Lapeyronie

    Montpellier, 34090, France

  • Dr Suneel Udani - NANI Research

    Hinsdale, Illinois, 60521, United States

  • Dr Tingting Li - Washington University

    St Louis, Missouri, 63110, United States

  • Fundacio Puigvert

    Barcelona, 08025, Spain

  • Fundacion Jimenez Diaz

    Madrid, 28040, Spain

  • Hospital Virgen de la Arrixaca

    El Palmar, 30120, Spain

  • Pr Claire Rigothier - CHU De Bordeaux

    Bordeaux, 33076, France

  • Pr. Bertrand Knebelmann - Necker Enfants Malades

    Paris, 75015, France

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