Clinical trial
A Phase 1/2 First-in-human, Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of Single Ascending Doses and Repeat Doses of UX053 in Patients With GSD III
Name
UX053-CL101
Description
The primary objective of the study is to evaluate the safety of UX053 in adults with Glycogen Storage Disease Type III (GSD III).
Trial arms
Trial start
2021-10-18
Estimated PCD
2023-03-20
Trial end
2023-03-20
Status
Terminated
Phase
Early phase I
Treatment
UX053
mRNA-based biologic
Arms:
UX053 Dose Level 1S ->OL-1R, UX053 Dose Level 2S->OL-2R, UX053 Dose Level 3S->OL-3R, UX053 Dose Level DB-2R, UX053 Dose Level DB-3R, UX053 or Placebo Dose Level DB-1R
Placebo
consists of the same components as the formulation buffer for UX053
Arms:
UX053 Dose Level DB-2R, UX053 Dose Level DB-3R, UX053 or Placebo Dose Level DB-1R
Antipyretic
participants will receive oral premedication prior to infusion
Arms:
UX053 Dose Level 1S ->OL-1R, UX053 Dose Level 2S->OL-2R, UX053 Dose Level 3S->OL-3R, UX053 Dose Level DB-2R, UX053 Dose Level DB-3R, UX053 or Placebo Dose Level DB-1R
Other names:
paracetamol, acetaminophen, ibuprofen
H2 Blocker
participants will receive oral premedication prior to infusion
Arms:
UX053 Dose Level 1S ->OL-1R, UX053 Dose Level 2S->OL-2R, UX053 Dose Level 3S->OL-3R, UX053 Dose Level DB-2R, UX053 Dose Level DB-3R, UX053 or Placebo Dose Level DB-1R
Other names:
famotidine
H1 Blocker
participants will receive oral premedication prior to infusion
Arms:
UX053 Dose Level 1S ->OL-1R, UX053 Dose Level 2S->OL-2R, UX053 Dose Level 3S->OL-3R, UX053 Dose Level DB-2R, UX053 Dose Level DB-3R, UX053 or Placebo Dose Level DB-1R
Other names:
cetirizine
Size
9
Primary endpoint
Number of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs, Deaths, Discontinuations, and/or Dose Changes
From first dose of study drug through the end of study (up to Day 90)
Eligibility criteria
Key Inclusion Criteria:
* Confirmed diagnosis of GSD III by gene sequencing or enzymatic testing
* Alanine aminotransferase at or below 5 times normal during the three months prior to dosing
* Willing and able to comply with standard dietary management of GSD III
Inclusion Criteria for Participants Rescreening Into OL-RD Cohorts After Treatment with UX053 in SAD Cohort:
* If a significant rise in ALT occurs after the prior dose, ALT should show a decreasing trend toward the subject's baseline value
* Total bilirubin, platelets and international normalized ratio (INR) is within normal limits
Key Exclusion Criteria:
* History of liver transplant or currently awaiting liver transplant
* History of cirrhosis
* Active Hepatitis B or C
* Severe kidney impairment
* History of liver cancer or large liver tumors
* History of any cancer within the past 3 years
* Known history of HIV infection
* Known severe allergy to polyethylene glycol (PEG), polysorbate, or mRNA vaccine
* Heart failure that causes marked limitation in physical activity
* Poorly controlled diabetes
* Poorly controlled hypothyroidism
* Treatment with immunosuppressive medications such as those used to treat chronic autoimmune conditions and solid organ transplants
* Pregnant or nursing, or planning to become pregnant during the study
Exclusion Criteria for Participants Rescreening Into OL-RD Cohorts After Treatment with UX053 in SAD Cohort:
* New or worsening symptoms of liver disease (including new or worsening hepatomegaly) along with any increase in transaminase levels
* Receipt of any blood product administration (eg, packed red blood cells, platelet, FFP) for management of consumptive coagulopathy
* An ALT level that is ≥ 8x ULN and \> 2x the participants baseline value in the absence of an alternative explanation
Note: Additional inclusion/exclusion criteria may apply, per protocol
Protocol
{'studyType': 'INTERVENTIONAL', 'phases': ['PHASE1', 'PHASE2'], 'designInfo': {'allocation': 'RANDOMIZED', 'interventionModel': 'SEQUENTIAL', 'primaryPurpose': 'TREATMENT', 'maskingInfo': {'masking': 'QUADRUPLE', 'maskingDescription': 'The SAD and OL-RD cohorts will be open-label, while the DB-RD dose cohorts will be randomized, double-blind, and placebo-controlled.', 'whoMasked': ['PARTICIPANT', 'CARE_PROVIDER', 'INVESTIGATOR', 'OUTCOMES_ASSESSOR']}}, 'enrollmentInfo': {'count': 9, 'type': 'ACTUAL'}}
Updated at
2024-04-16
1 organization
4 products
1 indication
Product
UX053Indication
Glycogen Storage Disease Type IIIProduct
AntipyreticOrganization
Ultragenyx PharmaceuticalProduct
H1 BlockerProduct
H2 Blocker