A Study to Determine the Efficacy and Safety of Tividenofusp Alfa (DNL310) vs Idursulfase in Pediatric and Young Adult Participants With Neuronopathic (nMPS II) or Non-Neuronopathic Mucopolysaccharidosis Type II (nnMPS II)

a study on Hunter Syndrome Mucopolysaccharidosis

Summary

Eligibility
for people ages 2-26 (full criteria)
Location
at Oakland, California and other locations
Dates
study started
study ends around
Principal Investigator
by Paul Harmatz, MD
Headshot of Paul Harmatz
Paul Harmatz

Description

Summary

This is a Phase 2/3, multiregional, two-arm, double-blind, randomized, active (standard-of-care)-controlled study of the efficacy and safety of tividenofusp alfa (DNL310), an investigational central nervous system (CNS)-penetrant enzyme-replacement therapy (ERT) for mucopolysaccharidosis type II (MPS II).

Participants may also qualify to enter an open-label treatment phase with DNL310 or idursulfase based on pre-specified criteria.

Official Title

A Phase 2/3, Multicenter, Double-Blind, Randomized Study to Determine the Efficacy and Safety of Tividenofusp Alfa (DNL310) vs Idursulfase in Pediatric and Young Adult Participants With Neuronopathic or Non-Neuronopathic Mucopolysaccharidosis Type II

Keywords

Mucopolysaccharidosis II, Hunter Syndrome, MPS II, nMPS II, nnMPS II, Mucopolysaccharidoses, tividenofusp alfa, idursulfase

Eligibility

You can join if…

Open to people ages 2-26

  • Participants aged ≥2 to <6 years (Cohort A) or ≥6 to <26 years (Cohort B)
  • Confirmed diagnosis of MPS II (for Cohort A, nMPS II; for Cohort B, nnMPS II)
  • Have no history of treatment with enzyme replacement therapy (ERT) OR not have received continuous ERT for 4 months prior to screening OR be on maintenance ERT and have tolerated idursulfase for a minimum of 4 months prior to screening

You CAN'T join if...

  • Have a documented mutation of other genes or genetic diagnosis accounting for developmental delay
  • Previously received an iduronate 2-sulfatase (IDS) gene therapy or stem cell therapy
  • Received any CNS-targeted MPS ERT within 6 months prior to screening
  • Have a contraindication for lumbar punctures and/or magnetic resonance imaging (MRI)
  • Participated in any other investigational drug study or used an investigational drug within 60 days prior to screening or intend to receive another investigational drug during the study

Locations

  • UCSF Benioff Children's Hospital Oakland accepting new patients
    Oakland California 94609 United States
  • University of Utah, PPDS accepting new patients
    Salt Lake City Utah 84132 United States

Lead Scientist at UCSF

  • Paul Harmatz, MD
    Dr. Paul Harmatz is a gastroenterologist who specializes in mucopolysaccharidoses (MPS) and other lysosomal storage diseases (genetic disorders in which a lack of certain enzymes results in progressive damage to cells and organ systems). He leads a team of specialists who diagnose and care for patients with these rare diseases, offering therapies such as weekly enzyme infusion.

Details

Status
accepting new patients
Start Date
Completion Date
(estimated)
Sponsor
Denali Therapeutics Inc.
Links
Denali Therapeutics
ID
NCT05371613
Phase
Phase 2/3 research study
Study Type
Interventional
Participants
Expecting 54 study participants
Last Updated
Contact us about this trial