MedPath

A phase 2 open label study to assess the efficacy and safety of beta-glucuronidase enzyme replacement therapy in Japanese patients with mucopolysaccharidosis type VII, Sly disease

Phase 2
Completed
Conditions
Mucopolysaccharidosis type7
Registration Number
JPRN-jRCT2091220416
Lead Sponsor
Osaka City University HospitalTakashi Hamazaki
Brief Summary

In this study, acceptable safety profile and the efficacy of Vestronidase-alpha treatment were confirmed in Japanese MPS VII patients at 24 weeks of administration.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
3
Inclusion Criteria

1. Confirmed diagnosis of MPS 7 based on:
1) Reduced activity of leukocyte beta-glucuronidase
2) Clinical symptoms of Lysosomal disease (hepatomegaly,joint contracture,airway obstruction, pulmonary problems etc.)
2. Aged 4 to 40 years
3. Willing and able to provide written informed consent,or in the case of subjects under the age of 18, provide written assent (if required) and written informed consent by a legally authorized representative after the nature of the study has been explained,and prior to any research-related procedures
4. Sexually active subjects must have been willing to use acceptable highly effective methods of contraception while participating in the study and for 30 days following the last dose.
5. Females of childbearing potential must have had a negative pregnancy test at Screening and be willing to have had additional pregnancy tests during the study.
6. Naive to treatment with UX003

Exclusion Criteria

1. Undergone a successful bone marrow or stem cell transplant or had any degree of detectable chimaerism with donor cells
2. Major surgery within 3 months prior to study entry or planned major surgery during the study that may not have allowed safe participation in the study
3. Presence or history of any hypersensitivity to rhGUS or its excipients that, in the judgment of the Investigator, placed the subject at increased risk for adverse effects
4. Pregnant or breastfeeding at Screening or planning to become pregnant (self or partner) at any time during the study
5. Use of any investigational product (drug or device or combination) within 30 days prior to Screening, or requirement for any investigational agent prior to completion of all scheduled study assessments
6. Presence of a condition of such severity and acuity that, in the opinion of the Investigator, warranted immediate surgical intervention or other treatment or may not have allowed safe participation in the study
7. Concurrent disease or condition, or laboratory abnormality that, in the view of the Investigator, placed the subject at high risk of poor treatment compliance or of not completing the study, or would have interfered with study participation or introduced additional safety concerns

Study & Design

Study Type
Interventional
Study Design
Not specified
Primary Outcome Measures
NameTimeMethod
Reduction from baseline in urinary glycosaminoglycans (dermatan sulfate, heparan sulfate, chondroitin sulfate) at treatment week 24.
Secondary Outcome Measures
NameTimeMethod
Changes from baseline in: <br> 1) developmental age, development quadrant<br> 2) liver / spleen volume<br> 3) cardiac function<br> 4) 6-minute walk test, 3-minute ascending test<br> 5) visual acuity test<br> 6) respiratory function<br> 7) decrease in urinary GAGs after 24 weeks
© Copyright 2025. All Rights Reserved by MedPath