One-Time gene shot could free gaucher patients from lifelong infusions

NCT ID NCT05487599

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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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 18, 2026 · Updated 4 times

Summary

This early-stage study tests a single intravenous dose of a gene therapy called LY3884961 in 15 adults with Gaucher disease type 1. The goal is to see if it is safe and can reduce or replace the need for ongoing enzyme replacement or substrate reduction therapy. Participants must have been on stable standard treatment for at least 2 years. The study lasts about 5 years, with close monitoring for side effects and disease markers.

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 1/2

Runs two stages together: safety and dose first, then whether the treatment works.

Participants

8 people

The number who actually took part.

Started

Dec 2022

Expected to finish

Aug 2031

An estimate. End dates often move.

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

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: 1. Age greater or equal to 18 years at the time of informed consent. 2. Bi-allelic pathogenic GBA1 variants must be centrally confirmed. 3. On ERT or SRT for at least 2 years and on a stable, maximum tolerated dose, for at least 3 months prior to screening. 4. Capable of giving signed informed consent, including compliance with the requirements and restrictions listed in the informed consent form (ICF) and in this protocol. 5. Females and males will be eligible for this study. Men and women of childbearing potential must use a highly effective method of contraception consistently and correctly for the duration of the study, including the long-term follow-up. 6. Patients must agree to abstain from blood, tissue and organ donation; and must agree to abstain from tissue and organ donation for the duration of the study, including long-term follow-up. Exclusion Criteria: 1. Clinically significant neurological signs and symptoms and/or behavioral disturbances. 2. Active and progressive bone disease expected to require surgical treatment in the next 6 months. 3. History of total splenectomy or planned total splenectomy during the first 18 months of the study. (Partial splenectomy not exclusionary). 4. Splenomegaly \> 10 MN as evaluated by centrally read abdominal magnetic resonance imaging (MRI) 5. Evidence of clinically significant liver disease, fragile liver, or history of exposure to hepatotoxins. 6. Thrombocytopenia with platelet count \< 40 × 10\^3 per μL. 7. Severe hyperlipidemia (triglycerides \> 1,000 mg/dL). 8. Current diagnosis of unstable or clinically significant cardiovascular conditions based on Investigator assessment. 9. History of certain cancers within 5 years of Screening. 10. Concomitant disease, condition or treatment which, in the opinion of the Investigator, would pose an unacceptable risk to the patient or interfere with the patient's ability to comply with study procedures or interfere with the conduct of the study. 11. Women of childbearing potential, pregnant (i.e., positive serum pregnancy result at Screening and/or Check-in) or breastfeeding or intending to become pregnant during the course of the trial. 12. Use of any GD-related chaperone therapy within 4 weeks prior to Screening or expected need to initiate chaperone therapy during at least the first 18 months of the study. 13. Any type of prior gene or cell therapy. 14. Use of systemic immunosuppressant or steroid therapy other than protocol-specified immunosuppression. 15. Participation in another therapeutic investigational drug or device study within 3 months or 5 half-lives of the study agent, whichever is longer. 16. Have an anti-AAV9 antibody titer of \>1:40 as determined by central laboratory. 17. Clinically significant abnormalities in laboratory test results at Screening. 18. Have any contraindications for MRI, including claustrophobia or the presence of contraindicated metal (ferromagnetic)implants/cardiac pacemaker.

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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

  • Duke University Health System

    Durham, North Carolina, 27710-3017, United States

  • Hospital Quironsalud Zaragoza, Paseo Mariano Renovales Sn

    Zaragoza, 50006, Spain

  • Lysosomal & Rare Disorders Research and Treatment Center

    Fairfax, Virginia, 22030-6066, United States

  • SphinCS Clinical Science for LSD

    Höchheim, 65239, Germany

  • Westmead Hospital-Cnr Hawkesbury and Darcy Rds

    Westmead, New South Wales, 2145, Australia

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