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Showing 1–24 of 55 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Hunter Syndrome (MPS II) Clear all
Completed Phase 2Phase 3 Interventional Results available

Study of Intrathecal Idursulfase-IT Administered in Conjunction With Elaprase® in Pediatric Patients With Hunter Syndrome and Early Cognitive Impairment

NCT02055118
View directory record Official record
Conditions
Hunter Syndrome
Interventions
idursulfase-IT, No IT treatment
Biological · Other
Lead sponsor
Shire
Industry
Eligibility
Up to 18 Years · Male only
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
3
States / cities
Oakland, California • Chicago, Illinois • Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 10, 2021 · Synced Jun 11, 2026, 2:22 AM EDT
Completed Phase 4 Interventional Results available

Long-term Evaluation on Height and Weight in Patients With MPS II Who Started Treatment at < 6 Years of Age

NCT02455622
View directory record Official record
Conditions
Hunter Syndrome
Interventions
Elaprase for intravenous (IV) infusion
Drug
Lead sponsor
Shire
Industry
Eligibility
Up to 5 Years · Male only
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2025
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 1, 2026 · Synced Jun 11, 2026, 2:22 AM EDT
Completed Phase 2 Interventional Results available

Allogeneic Bone Marrow Transplant for Inherited Metabolic Disorders

NCT01043640
View directory record Official record
Conditions
Mucopolysaccharidosis, Hurler Syndrome, Hunter Syndrome, Maroteaux-Lamy Syndrome, Sly Syndrome, Alpha Mannosidosis, Fucosidosis, Aspartylglucosaminuria, Adrenoleukodystrophy (ALD), Krabbe Disease, Metachromatic Leukodystrophy (MLD), Sphingolipidoses, Peroxisomal Disorders
Interventions
Campath-1H, Cyclophosphamide, Busulfan, Allogeneic stem cell transplantation, Cyclosporine A, Mycophenolate Mofetil
Drug · Procedure
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
Up to 21 Years
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2017
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 4, 2018 · Synced Jun 11, 2026, 2:22 AM EDT
Terminated No phase listed Observational

Mucopolysaccharidosis (MPS) I, II, and VI Screening in a High-Risk Population With Previous Surgical Repair or Presence of Inguinal and/or Umbilical Hernia in Combination With Pediatric ENT Surgery (The HATT Project)

NCT02095015
View directory record Official record
Conditions
Mucopolysaccharidosis (MPS)
Interventions
Not listed
Lead sponsor
Shire
Industry
Eligibility
Up to 7 Years · Male only
Enrollment
159 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
7
States / cities
Los Angeles, California • Jacksonville, Florida • Minneapolis, Minnesota + 4 more
Source: ClinicalTrials.gov public record
Updated Mar 16, 2021 · Synced Jun 11, 2026, 2:22 AM EDT
Recruiting Phase 1 Interventional

PEARL (PrEnAtal Enzyme Replacement Therapy for Lysosomal Storage Disorders)

NCT04532047
View directory record Official record
Conditions
MPS I, MPS II, MPS IVA, MPS VI, Mps VII, Gaucher Disease, Type 2, Gaucher Disease, Type 3, Pompe Disease Infantile-Onset, Wolman Disease
Interventions
Aldurazyme (laronidase)
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2032
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 16, 2026 · Synced Jun 11, 2026, 2:22 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Iduronate-2-sulfatase Enzyme Replacement Therapy in Mucopolysaccharidosis II (MPS II)

NCT00069641
View directory record Official record
Conditions
Mucopolysaccharidosis II
Interventions
iduronate-2-sulfatase enzyme replacement therapy, Placebo
Biological
Lead sponsor
Shire
Industry
Eligibility
5 Years to 25 Years · Male only
Enrollment
96 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2005
U.S. locations
4
States / cities
Oakland, California • St Louis, Missouri • Chapel Hill, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 9, 2021 · Synced Jun 11, 2026, 2:22 AM EDT
Completed Phase 1Phase 2 Interventional Results available

An Extension Study of HGT-HIT-045 Evaluating Long-Term Safety and Clinical Outcomes of Idursulfase-IT in Conjunction With Elaprase in Pediatric Participants With Hunter Syndrome and Cognitive Impairment

NCT01506141
View directory record Official record
Conditions
Hunter Syndrome
Interventions
Idursulfase-IT, Elaprase
Drug
Lead sponsor
Takeda
Industry
Eligibility
3 Years to 18 Years · Male only
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2024
U.S. locations
7
States / cities
Chicago, Illinois • Chapel Hill, North Carolina • Portland, Oregon + 4 more
Source: ClinicalTrials.gov public record
Updated Aug 5, 2025 · Synced Jun 11, 2026, 2:22 AM EDT
Available No phase listed Expanded access

Post-trial Access Program of Idursulfase-IT Along With Elaprase in Children With Hunter Syndrome

NCT05795361
View directory record Official record
Conditions
Hunter Syndrome
Interventions
Idursulfase-IT
Drug
Lead sponsor
Takeda
Industry
Eligibility
Male only
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
17
States / cities
Phoenix, Arizona • Oakland, California • Wilmington, Delaware + 14 more
Source: ClinicalTrials.gov public record
Updated Apr 12, 2026 · Synced Jun 11, 2026, 2:22 AM EDT
Active, not recruiting Phase 1Phase 2 Interventional

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

NCT04251026
View directory record Official record
Conditions
Mucopolysaccharidosis II
Interventions
tividenofusp alfa
Drug
Lead sponsor
Denali Therapeutics Inc.
Industry
Eligibility
Up to 18 Years · Male only
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2031
U.S. locations
4
States / cities
Oakland, California • Chicago, Illinois • Chapel Hill, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 6, 2025 · Synced Jun 11, 2026, 2:22 AM EDT
Active, not recruiting Phase 1Phase 2 Interventional

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

NCT03153319
View directory record Official record
Conditions
Mucopolysaccharidosis I, Mucopolysaccharidosis II, Mucopolysaccharidosis VI
Interventions
Adalimumab Injection [Humira], Saline Solution for Injection
Drug
Lead sponsor
Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center
Other
Eligibility
5 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2027
U.S. locations
1
States / cities
Torrance, California
Source: ClinicalTrials.gov public record
Updated Feb 1, 2026 · Synced Jun 11, 2026, 2:22 AM EDT
Active, not recruiting Phase 3 Interventional

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

NCT04573023
View directory record Official record
Conditions
Mucopolysaccharidosis II
Interventions
JR-141, Idursulfase, JR-141 or Idursulfase
Drug
Lead sponsor
JCR Pharmaceuticals Co., Ltd.
Industry
Eligibility
Not listed
Enrollment
86 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
7
States / cities
Phoenix, Arizona • Oakland, California • Chicago, Illinois + 4 more
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Jun 11, 2026, 2:22 AM EDT
Terminated Phase 3 Interventional

ALD-101 Adjuvant Therapy of Unrelated Umbilical Cord Blood Transfusion (UCBT) in Patients With Inherited Metabolic Diseases

NCT00654433
View directory record Official record
Conditions
Inherited Metabolic Diseases, Lysosomal Storage Disorders, Peroxisomal Storage Diseases, Inborn Errors of Metabolism, Mucopolysaccharidosis
Interventions
ALD-101
Biological
Lead sponsor
Aldagen
Industry
Eligibility
Up to 16 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
3
States / cities
Los Angeles, California • New York, New York • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 7, 2014 · Synced Jun 11, 2026, 2:22 AM EDT
Completed No phase listed Observational

Hunter Outcome Survey (HOS)

NCT03292887
View directory record Official record
Conditions
Hunter Syndrome
Interventions
Not listed
Lead sponsor
Shire
Industry
Eligibility
Not listed
Enrollment
1,443 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2023
U.S. locations
1
States / cities
Lexington, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 27, 2024 · Synced Jun 11, 2026, 2:22 AM EDT
Active, not recruiting Phase 2Phase 3 Interventional

CAMPSIITE™ RGX-121 Gene Therapy in Subjects With MPS II (Hunter Syndrome)

NCT03566043
View directory record Official record
Conditions
Mucopolysaccharidosis Type II (MPS II)
Interventions
RGX-121
Genetic
Lead sponsor
REGENXBIO Inc.
Industry
Eligibility
4 Months to 5 Years · Male only
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2025
U.S. locations
4
States / cities
Oakland, California • New Brunswick, New Jersey • Philadelphia, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 27, 2025 · Synced Jun 11, 2026, 2:22 AM EDT
Completed No phase listed Observational Results available

Collection and Study of Cerebrospinal Fluid in Patients With Hunter Syndrome

NCT01449240
View directory record Official record
Conditions
Hunter Syndrome
Interventions
No treatment
Other
Lead sponsor
Shire
Industry
Eligibility
Up to 70 Years · Male only
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
5
States / cities
Decatur, Georgia • Chicago, Illinois • Minneapolis, Minnesota + 2 more
Source: ClinicalTrials.gov public record
Updated Jun 8, 2021 · Synced Jun 11, 2026, 2:22 AM EDT
Completed No phase listed Observational

Longitudinal Studies of Brain Structure and Function in MPS Disorders

NCT01870375
View directory record Official record
Conditions
Mucopolysaccharidosis Type I, Mucopolysaccharidosis Type II, Mucopolysaccharidosis Type VI, Mucopolysaccharidosis Type IV, Mucopolysaccharidosis Type VII
Interventions
Not listed
Lead sponsor
University of Minnesota
Other
Eligibility
6 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2019
U.S. locations
3
States / cities
Oakland, California • Minneapolis, Minnesota • New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 5, 2019 · Synced Jun 11, 2026, 2:22 AM EDT
Terminated Phase 1Phase 2 Interventional Results available

Ascending Dose Study of Genome Editing by the Zinc Finger Nuclease (ZFN) Therapeutic SB-913 in Subjects With MPS II

NCT03041324
View directory record Official record
Conditions
Mucopolysaccharidosis II, MPS II
Interventions
SB-913
Biological
Lead sponsor
Sangamo Therapeutics
Industry
Eligibility
5 Years to 65 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
5
States / cities
Oakland, California • Chicago, Illinois • New York, New York + 2 more
Source: ClinicalTrials.gov public record
Updated Oct 24, 2022 · Synced Jun 11, 2026, 2:22 AM EDT
Completed Phase 1 Interventional

Unrelated Umbilical Cord Blood Transplantation Augmented With ALDHbr Umbilical Cord Blood Cells

NCT00692926
View directory record Official record
Conditions
MDS, Anemia, Aplastic, Inborn Errors of Metabolism, Congenital Marrow Failure, Congenital Immunodeficiency Syndrome
Interventions
ALDHbr Umbilical Cord Blood Cells
Biological
Lead sponsor
Joanne Kurtzberg, MD
Other
Eligibility
Up to 55 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2012
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 28, 2017 · Synced Jun 11, 2026, 2:22 AM EDT
Completed Phase 1 Interventional Results available

Reduced Intensity Conditioning for Umbilical Cord Blood Transplant in Pediatric Patients With Non-Malignant Disorders

NCT00744692
View directory record Official record
Conditions
Non Malignant Disorders, Immunodeficiencies, Congenital Marrow Failures, Hemoglobinopathies, Inborn Errors of Metabolism, Sickle Cell, Thalassemia, Lysosomal Storage Disease
Interventions
Unrelated Umbilical Cord Blood Transplant, Reduced Intensity Conditioning
Biological · Drug
Lead sponsor
Duke University
Other
Eligibility
Up to 21 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 12, 2014 · Synced Jun 11, 2026, 2:22 AM EDT
Completed Phase 1Phase 2 Interventional Results available

A Safety and Dose Ranging Study of Idursulfase (Intrathecal) Administration Via an Intrathecal Drug Delivery Device in Pediatric Patients With Hunter Syndrome Who Have Central Nervous System Involvement and Are Receiving Treatment With Elaprase®

NCT00920647
View directory record Official record
Conditions
Hunter Syndrome
Interventions
Control, Idursulfase IT (1 mg), Idursulfase IT (10 mg), Idursulfase IT (30 mg)
Other · Drug
Lead sponsor
Shire
Industry
Eligibility
3 Years to 18 Years · Male only
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 27, 2021 · Synced Jun 11, 2026, 2:22 AM EDT
Recruiting No phase listed Observational

Registry of Patients Diagnosed With Lysosomal Storage Diseases

NCT05619900
View directory record Official record
Conditions
Mucopolysaccharidosis I, Mucopolysaccharidosis II, Mucopolysaccharidosis IV A, Mucopolysaccharidosis VI, Mucopolysaccharidosis VII, Pompe Disease Infantile-Onset, Neuronopathic Gaucher Disease, Wolman Disease
Interventions
There is no intervention
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
Up to 64 Years
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2050
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Apr 7, 2026 · Synced Jun 11, 2026, 2:22 AM EDT
Recruiting No phase listed Observational

Longitudinal Study of Neurodegenerative Disorders

NCT03333200
View directory record Official record
Conditions
MLD, Krabbe Disease, ALD, MPS I, MPS II, MPS III, Vanishing White Matter Disease, GM3 Gangliosidosis, PKAN, Tay-Sachs Disease, NP Deficiency, Osteopetrosis, Alpha-Mannosidosis, Sandhoff Disease, Niemann-Pick Diseases, MPS IV, Gaucher Disease, GAN, GM1 Gangliosidoses, Morquio Disease, S-Adenosylhomocysteine Hydrolase Deficiency, Batten Disease, Pelizaeus-Merzbacher Disease, Leukodystrophy, Lysosomal Storage Diseases, Purine Nucleoside Phosphorylase Deficiency, Multiple Sulfatase Deficiency Disease
Interventions
Palliative Care, Hematopoetic Stem Cell Transplantation
Other · Biological
Lead sponsor
University of Pittsburgh
Other
Eligibility
Not listed
Enrollment
1,500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2035
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 8, 2026 · Synced Jun 11, 2026, 2:22 AM EDT
Completed No phase listed Observational

Mucopolysaccharidosis Type II Natural History

NCT03529786
View directory record Official record
Conditions
Mucopolysaccharidosis II
Interventions
Not listed
Lead sponsor
REGENXBIO Inc.
Industry
Eligibility
Male only
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 25, 2022 · Synced Jun 11, 2026, 2:22 AM EDT
Withdrawn Phase 1 Interventional

Safety and Efficacy of HMI-203 in ERT-Treated Adults With MPS II

NCT05238324
View directory record Official record
Conditions
Mucopolysaccharidosis II
Interventions
Genetic HMI-203
Biological
Lead sponsor
Homology Medicines, Inc
Industry
Eligibility
18 Years to 45 Years · Male only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2029
U.S. locations
5
States / cities
Oakland, California • New Haven, Connecticut • Hackensack, New Jersey + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 27, 2023 · Synced Jun 11, 2026, 2:22 AM EDT