ClinicalTrials.gg
AvailableNCT03775174Updated Jul 30, 2026

Expanded Access to Mepsevii

An expanded access record providing Mepsevii in MPS VII, Mucopolysaccharidosis VII and Sly Syndrome, sponsored by Ultragenyx Pharmaceutical Inc. Available. Per ClinicalTrials.gov, last updated 2026-07-30.

Sponsored by Ultragenyx Pharmaceutical Inc · Expanded access

Study type
Expanded access
Access type
Individual patients
Sex
All
01

Study summary

Individual patient expanded access requests may be considered for patients who have no other treatment options

Read the detailed description

Expanded access may be available outside of the US in countries prior to approval by the local regulatory agencies. For full details, please visit the links provided below.

02

Conditions studied

  • MPS VII
  • Mucopolysaccharidosis VII
  • Sly Syndrome

Keywords

  • Expanded Access
  • Compassionate Use
03

In context

Lead sponsor

Ultragenyx Pharmaceutical Inc is the lead sponsor of 63 studies on the registry; 8 are open to participants now.

Of its 16 completed or terminated interventional studies of FDA-regulated products, 12 (75%) have results posted.

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

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All

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

-

Exclusion criteria

Exclusion Criteria:

-

05

Access details

Study type
Expanded access
Access type
Individual patients

Available treatment

  • Also known as: UX003, recombinant human beta-glucuronidase, rhGUS, vestronidase alfa

06

Where to request access

No study locations are listed for this record.

07

References and documents

08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 30, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT03775174
Responsible party
Sponsor
First posted
Dec 13, 2018
Last update
Jul 30, 2026

Study contacts

Early Access
Contact
EarlyAccess@ultragenyx.com
View the source record on ClinicalTrials.gov ↗

Requesting access

Expanded access is arranged between your doctor and the company. Ask your care team to contact the provider listed on this record.

Contact the provider

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Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

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