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ClinicalTrials.gov public records Last synced Oct 3, 2026, 1:51 PM EDT

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Showing 25–48 of 63 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Mucopolysaccharidosis Type II Clear all
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 Oct 2, 2026 · Synced Oct 3, 2026, 1:51 PM 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 2, 2026 · Synced Oct 3, 2026, 1:51 PM 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 8, 2026 · Synced Oct 3, 2026, 1:51 PM EDT
Completed No phase listed Observational Results available

Screening Study to Identify Pediatric Patients With Hunter Syndrome Who Demonstrate Evidence of Central Nervous System (CNS) Involvement and Who Are Currently Receiving Treatment With Elaprase®

NCT00937794
View directory record Official record
Conditions
Hunter Syndrome
Interventions
Neurobehavioral testing, Visual and auditory assessments
Behavioral · Other
Lead sponsor
Shire
Industry
Eligibility
32 Months to 18 Years · Male only
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 14, 2021 · Synced Oct 3, 2026, 1:51 PM EDT
Completed Phase 1 Interventional

Safety and Dose Ranging Study of Insulin Receptor MoAb-IDS Fusion Protein in Patients With Hunter Syndrome

NCT02262338
View directory record Official record
Conditions
Mucopolysaccharidosis II
Interventions
AGT-182
Drug
Lead sponsor
ArmaGen, Inc
Industry
Eligibility
18 Years and older · Male only
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
3
States / cities
Oakland, California • Orange, California • Decatur, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 18, 2018 · Synced Oct 3, 2026, 1:51 PM 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 17, 2026 · Synced Oct 3, 2026, 1:51 PM EDT
Completed Phase 2 Interventional Results available

Stem Cell Transplantation for Hurler

NCT00176917
View directory record Official record
Conditions
Mucopolysaccharidosis I, Mucopolysaccharidosis VI, Mannosidosis, Mucolipidosis Type II (I-cell Disease)
Interventions
Stem Cell Transplant, Busulfan, Cyclophosphamide, ATG
Procedure · Drug
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
Not listed
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2010
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 28, 2017 · Synced Oct 3, 2026, 1:51 PM EDT
Completed No phase listed Observational

Study of Skeletal Disorders and Short Stature

NCT00001754
View directory record Official record
Conditions
Developmental Bone Disease, Dwarfism, Skeletal Dysplasias
Interventions
Not listed
Lead sponsor
National Human Genome Research Institute (NHGRI)
NIH
Eligibility
Not listed
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2001
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 3, 2026, 1:51 PM EDT
Completed Phase 1Phase 2 Interventional

Phase I/II Study of Retroviral-Mediated Transfer of Iduronate-2-Sulfatase Gene Into Lymphocytes of Patients With Mucopolysaccharidosis II (Mild Hunter Syndrome)

NCT00004454
View directory record Official record
Conditions
Mucopolysaccharidosis II
Interventions
lymphocyte gene therapy
Genetic
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 1996
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 3, 2026, 1:51 PM 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 28, 2025 · Synced Oct 3, 2026, 1:51 PM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

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

NCT05368038
View directory record Official record
Conditions
Acid Sphingomyelinase Deficiency, Ceroid Lipofuscinosis, Neuronal, 2, Cerebrotendinous Xanthomatosis, Fabry Disease, GM1 Gangliosidosis, Gaucher Disease, Lysosomal Acid Lipase Deficiency, Metachromatic Leukodystrophy, Mucopolysaccharidosis II, Mucopolysaccharidosis III-B, Mucopolysaccharidosis IV A, Mucopolysaccharidosis VI, Mucopolysaccharidosis VII, Niemann-Pick Disease, Type C
Interventions
Confirmatory Testing
Diagnostic Test
Lead sponsor
Albert Einstein College of Medicine
Other
Eligibility
Up to 4 Weeks
Enrollment
100,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2029
U.S. locations
9
States / cities
Brooklyn, New York • Manhasset, New York • New York, New York + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 28, 2026 · Synced Oct 3, 2026, 1:51 PM EDT
Recruiting No phase listed Observational

Data Collection Study of Patients With Non-Malignant Disorders Undergoing UCBT, BMT or PBSCT With RIC

NCT04528355
View directory record Official record
Conditions
Primary Immunodeficiency (PID), Congenital Bone Marrow Failure Syndromes, Inherited Metabolic Disorders (IMD), Hereditary Anemias, Inflammatory Conditions
Interventions
data collection
Drug
Lead sponsor
Paul Szabolcs
Other
Eligibility
2 Months to 60 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2028
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 13, 2026 · Synced Oct 3, 2026, 1:51 PM EDT
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 11, 2021 · Synced Oct 3, 2026, 1:51 PM EDT
Terminated Phase 1Phase 2 Interventional

Phase I/II Pilot Study of Mixed Chimerism to Treat Inherited Metabolic Disorders

NCT01372228
View directory record Official record
Conditions
Hurler Syndrome (MPS I), Hurler-Scheie Syndrome, Hunter Syndrome (MPS II), Sanfilippo Syndrome (MPS III), Krabbe Disease (Globoid Leukodystrophy), Metachromatic Leukodystrophy (MLD), Adrenoleukodystrophy (ALD and AMN), Sandhoff Disease, Tay Sachs Disease, Pelizaeus Merzbacher (PMD), Niemann-Pick Disease, Alpha-mannosidosis
Interventions
hematopoietic stem cell infusion
Biological
Lead sponsor
Talaris Therapeutics Inc.
Industry
Eligibility
Not listed
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 12, 2023 · Synced Oct 3, 2026, 1:51 PM 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 6, 2025 · Synced Oct 3, 2026, 1:51 PM EDT
Suspended Phase 1Phase 2 Interventional

RGX-111 Gene Therapy in Patients With MPS I

NCT03580083
View directory record Official record
Conditions
Mucopolysaccharidosis Type I (MPS I), Hurler Syndrome, Hurler-Scheie Syndrome
Interventions
RGX-111
Genetic
Lead sponsor
REGENXBIO Inc.
Industry
Eligibility
4 Months and older
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2029
U.S. locations
1
States / cities
Orange, California
Source: ClinicalTrials.gov public record
Updated Mar 12, 2026 · Synced Oct 3, 2026, 1:51 PM EDT
Withdrawn Phase 4 Interventional

A Study of ELAPRASE in Treatment-naïve Participants With Hunter Syndrome (Mucopolysaccharidosis [MPS] II)

NCT05494593
View directory record Official record
Conditions
Mucopolysaccharidosis (MPS), Hunter Syndrome
Interventions
ELAPRASE, Rituximab, Methotrexate, Intravenous Immunoglobulin (IVIG)
Drug
Lead sponsor
Takeda
Industry
Eligibility
Up to 6 Years · Male only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
8
States / cities
Phoenix, Arizona • Oakland, California • San Diego, California + 5 more
Source: ClinicalTrials.gov public record
Updated Dec 9, 2025 · Synced Oct 3, 2026, 1:51 PM 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 7, 2025 · Synced Oct 3, 2026, 1:51 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Effects of Adalimumab in Mucopolysaccharidosis Types I, II and VI

NCT02437253
View directory record Official record
Conditions
Mucopolysaccharidosis Type I, Mucopolysaccharidosis Type II, Mucopolysaccharidosis Type VI
Interventions
Adalimumab, Placebo
Drug · Other
Lead sponsor
Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center
Other
Eligibility
5 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Torrance, California
Source: ClinicalTrials.gov public record
Updated Sep 15, 2017 · Synced Oct 3, 2026, 1:51 PM 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 10, 2021 · Synced Oct 3, 2026, 1:51 PM EDT
Completed No phase listed Observational Results available

Carotid Structure and Function in MPS Syndromes: A Multicenter Study of the Lysosomal Disease Network

NCT01586871
View directory record Official record
Conditions
Mucopolysaccharidoses
Interventions
Not listed
Lead sponsor
University of Minnesota
Other
Eligibility
3 Years to 18 Years
Enrollment
1,147 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
2
States / cities
Orange, California • Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 24, 2021 · Synced Oct 3, 2026, 1:51 PM 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 28, 2024 · Synced Oct 3, 2026, 1:51 PM 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 2, 2026 · Synced Oct 3, 2026, 1:51 PM EDT
Enrolling by invitation Phase 3 Interventional

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

NCT05594992
View directory record Official record
Conditions
Mucopolysaccharidosis II
Interventions
JR-141
Drug
Lead sponsor
JCR Pharmaceuticals Co., Ltd.
Industry
Eligibility
Not listed
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
2
States / cities
Oakland, California • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 21, 2026 · Synced Oct 3, 2026, 1:51 PM EDT