Summary

Eligibility
for people ages 18 years and up (full criteria)
Location
at Los Angeles, California and other locations
Dates
study started
completion around
Principal Investigator
by Jeff M. Bronstein, MD, PhD
Headshot of Jeff M. Bronstein
Jeff M. Bronstein

Description

Summary

The primary objectives of this study are to evaluate the safety of single IV doses of UX701 in patients with Wilson disease, to select the UX701 dose with the best benefit/risk profile based on the totality of safety and efficacy data and to evaluate the effect of UX701 on copper regulation.

Official Title

An Operationally Seamless Phase 1/2/3 Study Consisting of a Safety and Dose-finding Phase 1/2 and Randomized, Open-label, Active-controlled Phase 3 to Evaluate UX701 AAV Gene Therapy in Adults With Wilson Disease

Details

Stage 1 (Phase 1/2) is an open-label safety and dose-finding stage designed to evaluate the safety and efficacy of 4 dose levels of UX701 to establish initial safety of UX701 and select a safe and efficacious dose for further evaluation. Stage 2 (Phase 3) is a randomized, open-label, active-controlled stage to evaluate the safety and efficacy of UX701 using the dose selected in Stage 1. Stage 3 is a long-term follow-up stage designed to evaluate the safety, efficacy, and clinical benefit of UX701 for at least 5 years from the time of UX701 administration.

Participants who receive UX701 will receive premedication, prophylactic oral corticosteroids and immunomodulation therapy.

Keywords

Wilson Disease, Hepatolenticular Degeneration

Eligibility

You can join if…

Open to people ages 18 years and up

  • Confirmed diagnosis of Wilson disease based on genetic confirmation of heterozygous or homozygous biallelic ATP7B mutation.
  • Stable Wilson disease as evidenced by ongoing copper chelator (ie, penicillamine, trientine) and/or zinc therapy for at least 2 months at screening, with no medication or dose changes for at least 2 months at screening.
  • Ongoing restriction of high copper containing foods for at least 2 months at Screening and continued through study participation.
  • Willing and able to comply with all study procedures and requirements, including frequent blood collection, total urine collection over a 24-hour period, patient-reported outcome assessments, and long-term follow-up

You CAN'T join if...

  • Detectable pre-existing antibodies to the AAV9 capsid.
  • Stage 1 only: History of copper chelator or zinc therapy noncompliance, in the Investigator's judgment, within 6 months prior to Screening.
  • History of liver transplant.
  • Active decompensated hepatic cirrhosis or history of hepatic encephalopathy.
  • Significant hepatic inflammation as evidenced by laboratory abnormalities.
  • Model for End-Stage Liver Disease (MELD) score > 13.
  • Hemoglobin < 9 g/dL
  • Presence of Stage 3 or higher chronic kidney disease based on estimated glomerular filtration rate < 60 mL/min/1.73 m2.
  • Marked neurological deficit or compromise that, in the Investigator's opinion, would interfere with the subject's safety or ability to participate in the study.
  • Moderate to severe depression, recent or active suicidal ideation with intent or suicidal behavior, psychosis, or unstable psychiatric illness.
  • Known hypersensitivity to UX701 or its excipients, copper chelators, zinc, rituximab, tacrolimus, corticosteroids, or eculizumab that, in the Investigator's judgement, places the participant at increased risk for adverse events.
  • Participation in another gene transfer study or use of another gene transfer product before or during study participation.
  • Subjects with known hypersensitivity to amide-containing local anesthetics are excluded from participating in the optional liver biopsy substudy.

Note: Other protocol defined Inclusion/ Exclusion criteria may apply

Locations

  • University of California Los Angeles accepting new patients
    Los Angeles California 90095 United States
  • Stanford University accepting new patients
    Redwood City California 94063 United States

Lead Scientist at UCLA

Details

Status
accepting new patients
Start Date
Completion Date
(estimated)
Sponsor
Ultragenyx Pharmaceutical Inc
Links
Ultragenyx Patient Advocacy/Wilson Disease Information Ultragenyx Wilson Disease (WD) Research Study Opportunities Sign up for this study
ID
NCT04884815
Phase
Phase 1/2 Wilson's Disease Research Study
Study Type
Interventional
Participants
Expecting 82 study participants
Last Updated