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15 clinical studies listed.

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Mucopolysaccharidosis II

Tundra lists 15 Mucopolysaccharidosis II clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.

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RECRUITING

NCT05619900

Registry of Patients Diagnosed With Lysosomal Storage Diseases

This is an international prospective and retrospective registry of patients with Lysosomal Storage Diseases (LSDs) to understand the natural history of the disease and the outcomes of fetal therapies, with the overall goal of improving the prenatal management of patients with LSDs.

Gender: All

Ages: Any - 64 Years

Updated: 2026-04-08

1 state

Mucopolysaccharidosis I
Mucopolysaccharidosis II
Mucopolysaccharidosis IV A
+5
ACTIVE NOT RECRUITING

NCT05665166

Gene Therapy With Modified Autologous Hematopoietic Stem Cells for Patients With Mucopolysaccharidosis Type II

MPS II is a genetic disorder that affects boys. Boys with MPS II are missing a working enzyme known as iduronate-2-sulfatase (IDS) which is needed to break down long sugar chains in the body. When this enzyme is missing, these sugars build up to excess causing damage, and stop organs such as the brain from working properly. Children with MPS II often have progressive symptoms such as developmental delay and physical problems. The only approved treatment for MPS II is enzyme replacement therapy. This involves a regular infusion of the missing enzyme into the blood stream. But this treatment only helps some symptoms and cannot help problems in the brain. This study will be the first in human clinical trial to check whether using a gene therapy in children with MPS II is safe and is able to provide enough enzyme to help with disease symptoms. Gene therapy involves changing the genetic information that makes up a person, by taking a correct version of the gene that is needed to make the working IDS enzyme and putting it back into the body. This means that the body can then make the missing enzyme itself. The good thing with this therapy is that the body should be able to make this enzyme forever. To make sure the therapy is safe and working patients will be closely followed for 2 years.

Gender: MALE

Ages: 3 Months - 22 Months

Updated: 2026-03-27

Mucopolysaccharidosis II
ENROLLING BY INVITATION

NCT06075537

An Extension Study of the Long-Term Safety, Tolerability, and Efficacy of Tividenofusp Alfa (DNL310) in Participants With Mucopolysaccharidosis Type II (MPS II) From Study DNLI-E-0002 or Study DNLI-E-0007

This is a multiregional open-label extension (OLE) to assess the safety, tolerability, and efficacy of long-term treatment with tividenofusp alfa (DNL310), an investigational central nervous system (CNS)-penetrant intravenous (IV) enzyme replacement therapy (ERT) for Hunter syndrome (MPS II). Participants who complete at least through the Week 49 visit in Study DNLI-E-0002 and do not discontinue study intervention early and participants who complete Study DNLI-E-0007 will be enrolled in this OLE. All participants will receive DNL310 for up to 5 years from the time of entry in this OLE. Participants, site staff, and the Sponsor will remain blinded to the original treatment assignment for participants entering this OLE from Study DNLI-E-0007.

Gender: All

Ages: Any - 18 Years

Updated: 2026-03-11

10 states

Mucopolysaccharidosis II
ACTIVE NOT RECRUITING

NCT04573023

A Phase III Study of JR-141 in Patients With Mucopolysaccharidosis II (STARLIGHT)

A Global Phase III multicenter, randomized, assessor-blinded, active-controlled designed to evaluate safety and efficacy of study drug for the treatment of the MPS II.

Gender: All

Updated: 2026-03-02

7 states

Mucopolysaccharidosis II
RECRUITING

NCT06036693

MPS (RaDiCo Cohort) (RaDiCo-MPS)

The goal of this observational study is to characterize the epidemiology and natural history of MPS diseases by building a retrospective and prospective collection of extensive phenotypic data from French MPS patients.

Gender: All

Updated: 2026-02-11

Mucopolysaccharidosis I
Mucopolysaccharidosis II
Mucopolysaccharidosis III
+5
ACTIVE NOT RECRUITING

NCT03153319

Study to Evaluate the Safety and Efficacy of Adalimumab in MPS I, II, and VI

Randomized, double-blind, placebo-controlled, parallel-group, single-center study followed by open-label phase, to evaluate the effects of adalimumab compared to placebo on the change from baseline in joint and skeletal disease in children and adults with mucopolysaccharidosis (MPS) I, II or VI.

Gender: All

Ages: 5 Years - Any

Updated: 2026-02-02

1 state

Mucopolysaccharidosis I
Mucopolysaccharidosis II
Mucopolysaccharidosis VI
ENROLLING BY INVITATION

NCT05594992

An Extension Study of JR-141 to Evaluate the Long-term Safety and Efficacy in MPS II (Hunter Syndrome) Subjects

An extension of Global Phase III open-label, multicenter designed to evaluate the Long-term safety and efficacy of study drug for the treatment of the MPS II.

Gender: All

Updated: 2026-01-21

2 states

Mucopolysaccharidosis II
ENROLLING BY INVITATION

NCT05368038

ScreenPlus: A Comprehensive, Flexible, Multi-disorder Newborn Screening Program

ScreenPlus is a consented, multi-disorder pilot newborn screening program implemented in conjunction with the New York State Newborn Screening Program that provides families the option to have their newborn(s) screened for a panel of additional conditions. The study has three primary objectives: 1) define the analytic and clinical validity of multi-tiered screening assays for a flexible panel of disorders, 2) determine disease incidence in a large newborn population, and 3) assess the impact of early diagnosis on health outcomes. Over a nine-year period, ScreenPlus aims to screen 100,000 infants born in eight high birthrate hospitals in New York for a flexible panel of rare genetic disorders. This study will also evaluate the Ethical, Legal and Social issues pertaining to NBS for complex disorders, which will be done via online surveys that will be directed towards ScreenPlus parents who opt to participate and qualitative interviews with families of infants who are identified through ScreenPlus.

Gender: All

Ages: Any - 4 Weeks

Updated: 2025-09-12

1 state

Acid Sphingomyelinase Deficiency
Ceroid Lipofuscinosis, Neuronal, 2
Cerebrotendinous Xanthomatosis
+11
RECRUITING

NCT02254863

UCB Transplant of Inherited Metabolic Diseases With Administration of Intrathecal UCB Derived Oligodendrocyte-Like Cells

The primary objective of the study is to determine the safety and feasibility of intrathecal administration of DUOC-01 as an adjunctive therapy in patients with inborn errors of metabolism who have evidence of early demyelinating disease in the central nervous system (CNS) who are undergoing standard treatment with unrelated umbilical cord blood transplantation (UCBT). The secondary objective of the study is to describe the efficacy of UCBT with intrathecal administration of DUOC-01 in these patients.

Gender: All

Ages: 1 Week - 22 Years

Updated: 2025-09-08

1 state

Adrenoleukodystrophy
Batten Disease
Mucopolysaccharidosis II
+9
ACTIVE NOT RECRUITING

NCT04251026

A Study of Tividenofusp Alfa (DNL310) in Pediatric Participants With Hunter Syndrome

This is a multicenter, multiregional, open-label study to assess the safety, pharmacokinetics (PK), and pharmacodynamics (PD) of tividenofusp alfa (DNL310), an investigational central nervous system (CNS)-penetrant enzyme replacement therapy (ERT), designed to treat both the peripheral and CNS manifestations of Mucopolysaccharidosis type II (MPS II; Hunter syndrome). Participants, whose physicians feel they are deriving benefit, will have the opportunity to be reconsented into a safety extension and then an open-label extension for continued evaluation.

Gender: MALE

Ages: Any - 18 Years

Updated: 2025-08-07

6 states

Mucopolysaccharidosis II
RECRUITING

NCT05371613

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)

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.

Gender: All

Ages: 2 Years - 25 Years

Updated: 2025-08-05

18 states

Mucopolysaccharidosis II
ACTIVE NOT RECRUITING

NCT04348136

An Extension Study of JR-141 in Patients With Mucopolysaccharidosis Type II

Multicenter, open-label, single-group, designed to evaluate the long term efficacy and safety of study drug for the treatment of the MPS II.

Gender: MALE

Updated: 2025-07-24

Mucopolysaccharidosis II
ACTIVE NOT RECRUITING

NCT03708965

An Extension Study of JR-141-BR21 in Patients With Mucopolysaccharidosis II

A Phase II open-label, parallel group, 2 sites (Brazil), designed to evaluate the long term safety and efficacy of study drug for the treatment of the MPS II.

Gender: MALE

Ages: 0 Years - Any

Updated: 2025-07-24

Mucopolysaccharidosis II
ACTIVE NOT RECRUITING

NCT05422482

A Study to Evaluate the Safety, Tolerability, PK and PD of Intracerebroventricular GC1123 in Patients with MPS Ⅱ

The purpose of this study is to evaluate the safety, tolerability, pharmacokinetics and pharmacodynamics of intracerebroventricular GC1123 in patients with MPS Ⅱ who have central nervous system involvement and are receiving treatment with intravenous drug

Gender: All

Ages: 18 Months - 18 Years

Updated: 2024-10-15

Mucopolysaccharidosis II
Hunter Syndrome
ACTIVE NOT RECRUITING

NCT04628871

Long Term Follow-up (LTFU) of Subjects Who Received SB-318, SB-913, or SB-FIX

Long-term follow-up of subjects who received SB-318, SB-913, or SB-FIX in a previous trial and completed at least 52 weeks post-infusion follow-up in their primary protocol. Enrolled subjects will be followed for a total of up to 10 years following exposure to SB-318, SB-913, or SB-FIX.

Gender: All

Ages: 18 Years - Any

Updated: 2024-05-03

5 states

Hemophilia B
Mucopolysaccharidosis I
Mucopolysaccharidosis II