Clinical trial Recruiting at 12 sites Observational

Monitoring program for Mucopolysaccharidosis VII disease

Official title: Mucopolysaccharidosis VII Disease Monitoring Program (MPS VII DMP)

Run by Ultragenyx Pharmaceutical Inc · NCT03604835 · Data updated 2026-11-12

This study is trying to understand how Mucopolysaccharidosis VII affects people over time and see if a treatment called vestronidase alfa is safe and effective for both treated and untreated patients.

Quick facts

Study typeObservational
SexAll
Enrollment50 (estimated)
SponsorUltragenyx Pharmaceutical Inc
Industry-sponsored
Locations14 sites (Orange, California and 13 other locations)
StatusRecruiting
StartedJanuary 29, 2018
Main results expectedApril 2032
Study endsApril 2032
Registry record updatedAugust 27, 2026
Trial IDNCT03604835 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include individuals diagnosed with MPS VII through laboratory testing.

Probably not a fit

Patients currently participating in other interventional clinical trials may not benefit from this program.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

The Mucopolysaccharidosis VII Disease Monitoring Program is a global, prospective, multicenter initiative aimed at characterizing the presentation and progression of MPS VII. It assesses the long-term effectiveness and safety of vestronidase alfa, including monitoring for hypersensitivity reactions and immunogenicity. The program collects comprehensive data on clinical presentation, disease heterogeneity, and progression through various biomarker assessments and patient-reported outcomes. This observational study includes both treated and untreated patients to provide a robust dataset for future analysis.

Why it matters

Potential benefit: If successful, this program could enhance understanding of MPS VII and improve management strategies for patients.

How similar studies have gone: While this program is observational, similar approaches in monitoring rare diseases have shown promise in enhancing patient care and treatment outcomes.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Diagnosis of MPS VII based on laboratory diagnosis, including either enzymatic or mutation analysis.
* Willing and able to provide written informed consent or, in the case of patients under the age of 18 (or below adult ages as defined by local laws and regulations) or patients \>18 years of age who have cognitive deficiencies, provide written assent (if required) and written informed consent by a legally authorized representative after the nature of the DMP has been explained, and prior to any research-related procedures.
* Willing to comply with DMP visit schedule.

Exclusion Criteria:

* Concurrent participation in other pharmaceutical company-sponsored interventional clinical trial unless approved by Ultragenyx.

Where it's running

  • Children's Hospital of Orange County
    Orange, California, United States
    Recruiting
  • Children's National Health System
    Washington D.C., District of Columbia, United States
    Recruiting
  • Ann & Robert H. Lurie Children's Hospital of Chicago
    Chicago, Illinois, United States
    Recruiting
  • University of Michigan
    Ann Arbor, Michigan, United States
    Recruiting
  • University of Utah Medical Center
    Salt Lake City, Utah, United States
    Recruiting
  • Seattle Children's Hospital
    Seattle, Washington, United States
    Recruiting
Show 8 more locations
  • Laboratorio de Neuroquimica Dr. N.A. Chamoles S.R.L.
    Buenos Aires, Buenos Aires, Argentina
    Recruiting
  • Hospital de Clínicas de Porto Alegre
    Porto Alegre, Rio Grande do Sul, Brazil
    Recruiting
  • Centre Hospitalier Universitaire La Timone
    Marseille, Provence-Alpes-Côte d'Azur Region, France
    Recruiting
  • Universitätsmedizin der Johannes Gutenberg-Universität Mainz
    Mainz, Germany
    Recruiting
  • Centro Hospitalar do Porto
    Porto, Portugal
    Recruiting
  • Hospital Universitario Virgen del Rocío Pabellón Infantil
    Seville, Sevilla, Spain
    Recruiting
  • New York University Langone Medical Center
    New York, New York, United States
    Terminated
  • Erasmus University Medical Center Rotterdam
    Rotterdam, South Holland, Netherlands
    Terminated

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

  • Observational study on Mucopolysaccharidosis diseases in France

    This study is trying to learn more about Mucopolysaccharidosis diseases by collecting information from patients in France to understand how these rare conditions affect their lives.

    Recruiting at 14 sites Institut National de la Santé Et de la Recherche Médicale, France · Angers and 22 other locations · NCT06036693

  • Registry for patients with lysosomal storage diseases

    This study is collecting information from patients with lysosomal storage diseases to see how these conditions progress and how treatments can improve care for them and their families.

    Recruiting University of California, San Francisco · San Francisco, California · NCT05619900

  • In utero enzyme replacement therapy for lysosomal storage disorders

    This study is testing whether giving enzyme replacement therapy to unborn babies with lysosomal storage disorders can improve their health and development before they are born.

    Recruiting Phase 1 University of California, San Francisco · San Francisco, California · NCT04532047

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.