A Study of UX003 Recombinant Human Beta-Glucuronidase (rhGUS) Enzyme Replacement Therapy in Subjects With Mucopolysaccharidosis Type 7, Sly Syndrome (MPS 7)

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Ultragenyx

Status and phase

Completed
Phase 3

Conditions

Mucopolysaccharidosis
Sly Syndrome
MPS VII
Mucopolysaccharidosis VII

Treatments

Drug: UX003

Study type

Interventional

Funder types

Industry

Identifiers

NCT02432144
UX003-CL202
2015-001875-32 (EudraCT Number)

Details and patient eligibility

About

The primary objective of the study is to evaluate the long-term safety of UX003 in subjects with MPS 7.

Full description

Participants with MPS 7 who were UX003 treatment-naïve or previously enrolled and treated in a prior clinical study of UX003 (e.g. UX003-CL301 [NCT02230566], investigator sponsored trials, expanded access/compassionate use) can enroll into this treatment and extension study provided all eligibility criteria is met for a given participant.

Enrollment

12 patients

Sex

All

Ages

5+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Confirmed diagnosis of MPS 7 based on leukocyte or fibroblast glucuronidase enzyme assay or genetic testing.
  • Willing and able to provide written, signed informed consent or, in the case of subjects under the age of 18 (or 16 years, depending on the region), 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.
  • Willing and able to comply with all study procedures.
  • Sexually active subjects must be willing to use acceptable, highly-effective methods of contraception while participating in the study and for 30 days following the last dose.
  • Females of childbearing potential must have a negative pregnancy test at Baseline and be willing to have additional pregnancy tests during the study. Females considered not of childbearing potential include those who have not experienced menarche, or have had tubal ligation at least one year prior to completion of the primary study, or have had total hysterectomy.
  • For UX003 treatment-naïve subjects only, apparent clinical signs of lysosomal storage disease as judged by the Investigator, including at least one of the following: enlarged liver and spleen, joint limitations, airway obstruction or pulmonary problems, limitation of mobility while still ambulatory.
  • For UX003 treatment-naïve subjects only, elevated urinary glycosaminoglycans (uGAG) excretion at a minimum of 2-fold over normal.
  • For UX003 treatment-naïve subjects only, aged 5 years and older.

Exclusion criteria

  • If enrolled in a prior UX003 clinical study, the subject experienced safety-related event(s) in the prior UX003 clinical study that, in the opinion of the Investigator and sponsor, precludes resuming UX003 treatment.
  • Undergone a successful bone marrow or stem cell transplant or has any degree of detectable chimaerism with donor cells.
  • Presence or history of any hypersensitivity to rhGUS or its excipients that, in the judgment of the Investigator, places the subject at increased risk for adverse effects.
  • Pregnant or breastfeeding at Baseline or planning to become pregnant (self or partner) at any time during the study.
  • Other than the use of UX003, use of any investigational product (drug or device or combination) within 30 days prior to Baseline, or requirement for any investigational agent prior to completion of all scheduled study assessments.
  • Presence of a condition of such severity and acuity that, in the opinion of the Investigator, warrants immediate surgical intervention or other treatment or may not allow safe study participation.
  • Concurrent disease or condition, or laboratory abnormality that, in the view of the Investigator, places the subject at high risk of poor treatment compliance or of not completing the study, or would interfere with study participation or introduce additional safety concerns.

Trial design

12 participants in 1 patient group

UX003
Experimental group
Description:
4 mg/kg UX003 every other week (QOW)
Treatment:
Drug: UX003

Trial documents
2

Trial contacts and locations

0

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Data sourced from clinicaltrials.gov

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