ClinicalTrials.gg
Active, not recruitingNCT07226622Updated May 12, 2026

Prescreening Study to Identify Potential Wilson Disease Participants for Gene-Editing Clinical Trial

An observational study in Wilson Disease, sponsored by Prime Medicine, Inc.. Active, not recruiting at 7 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-05-12.

Sponsored by Prime Medicine, Inc. · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
30
Ages
18 Years and older
Sex
All
01

Study summary

The aim of this study is to inform and improve future clinical trials in Wilson Disease (WD) by better understanding how patients with WD are living with and managing the disease, and by identifying key factors that shape their decisions to participate in clinical research.

Read the detailed description

This will be a multi-region, multi-site, prescreening study for individuals with WD. Eligible participants must have a clinical history consistent with WD. p.H1069Q or p.R778L mutation are eligible for this study. Participants who do not have a known genotype at enrollment may have their ATP7B gene sequenced while on study, with the approval of the study Medical Monitor. Participants who have previously received liver transplant or gene therapy for WD are excluded.

This study will enroll up to approximately 30 participants aged 18 and above, at least 15 of whom must have at least 1 ATP7B p.H1069Q allele. Participants must meet all inclusion criteria and none of the exclusion criteria to be eligible for the study. Each participant will have a blood sample collected to evaluate total serum ceruloplasmin and ceruloplasmin oxidase. For participants who have at least 1 ATP7B allele with the p.H1069Q or p.R778L mutation, chart review will be conducted to collect relevant medical history information, and the participant will be asked to complete a survey to evaluate their interest in and attitudes towards gene editing for WD. Study participants will receive no study mandated therapeutic interventions but will continue to receive standard of care (SOC) for the treatment of WD. The expected duration of participation for each participant is approximately 90 days.

02

Conditions studied

  • Wilson Disease

Keywords

  • Hepatolenticular Degeneration
  • Liver Diseases
  • Genetic Diseases, Inborn
  • Congenital, Hereditary, and Neonatal Diseases and Abnormalities
  • Metabolism, Inborn Errors
  • Metal Metabolism, Inborn Errors
  • Metabolic Diseases
  • Nutritional and Metabolic Diseases
03

In context

Hepatolenticular Degeneration

80 studies on the registry are indexed under Hepatolenticular Degeneration; 31 are open to participants now.

This study's planned enrollment of 30 is below the median of 72 across 35 observational studies indexed under Hepatolenticular Degeneration.

Browse Hepatolenticular Degeneration studies →

Lead sponsor

Prime Medicine, Inc. is the lead sponsor of 4 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Patients with a confirmed diagnosis of Wilson Disease, at least 15 of whom have the p.H1069Q allele.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Confirmed Wilson Disease (WD) as determined by the following criteria:

    1. An established clinical diagnosis of WD
    2. Genetic analysis confirming the presence of biallelic pathogenic variants at ATP7B, at least one of which is EITHER p.H1069Q OR p.R778L OR Participants without a confirmed genetic diagnosis may enroll only with explicit approval from the Medical Monitor

Exclusion criteria

Exclusion Criteria:

  1. Prior history of gene therapy, liver transplantation, hepatocyte (cellular) transplantation, or active listing for liver transplantation
  2. For individuals with known ATP7B genotype: individual does not have at least 1 ATP7B allele with either the p.H1069Q or p.R778L mutation.
  3. Significant neurological conditions within the prior 12 months which may impact participant safety or participation in the study, including ability to complete study requirements or procedures as outlined in the clinical study protocol.
  4. In patients with psychiatric involvement, current or fluctuant clinical instability with new or changing diagnoses or substantial medication regimen changes in the past 12 months that could limit their participation, in the opinion of the Investigator.
  5. History of cirrhotic decompensation within the past year.
  6. Any other condition that, in the opinion of the Investigator, may compromise the safety or compliance of the participant or would preclude the participant from successful study completion, including participant unable or unwilling to comply with the protocol requirements.
  7. Current participation in an study for the treatment of WD.
  8. Prior or active or myeloproliferative disorder (excluding Stage 1 or lower, fully treated/excised malignant and pre-malignant disease of the skin, cervix or colon. Additionally, any other malignant and pre-malignant disease that the Investigator in consultation with the treating oncologist and study Medical Monitor deem has been fully treated/excised for > 5 years).
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
30 participants (estimated)
Patient registry
No

Groups and cohorts

  • Participants with at least 1 allele with the ATP7B p.H1069Q or p.R778L mutation
06

What researchers measure

Primary outcomes

  1. Gene Editing Interest & Attitudes Survey

    This is a survey created by Prime Medicine. Survey answers are reported on both a scale and in open-ended response; the purpose of the survey is to better understand the patient's disease experience, current treatment and adherence, copper in diet and lifestyle, and gauge interest in a gene editing clinical study. No calculations with score values will be conducted.

    Time frame: From enrollment to the end of study 90 days

Secondary outcomes

  1. Distribution of serum ceruloplasmin levels

    The serum ceruloplasmin concentration will be measured once in all participants at a central laboratory using an oxidase activity-based assay.

    Time frame: From enrollment to end of study 90 days

  2. Mutational landscape among adults with a clinically confirmed diagnosis of WD

    Targeted sequencing of ATP7B will be performed in participants whose index diagnosis of WD did not require diagnostic genetic testing

    Time frame: From enrollment to end of study 90 days

  3. WD-related health characteristics

    Targeted review of the available medical record will be performed and key health characteristics will be recorded and assessed in aggregate. A list of WD-related past medical history will be compiled. This will include all liver, neurological and psychiatric medical history categorized using MedDRA.

    Time frame: From enrollment to the end of study 90 days

07

Study locations

7 sites
08

References and documents

Individual participant data

Plan to share: No — No plans to make IPD available to other researchers

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 12, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07226622
Lead sponsor
Prime Medicine, Inc.
Responsible party
Sponsor
First posted
Nov 10, 2025
Start date
Dec 29, 2025
Primary completion
Dec 2027 (estimated)
Completion
Dec 2027 (estimated)
Last update
May 12, 2026

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Oct 2025. You cannot join it, but the record below documents what was studied.

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Discussion

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