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Showing 1–15 of 15 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Mucopolysaccharidosis IIIA Clear all
Recruiting Phase 2Phase 3 Interventional

Phase I/II/III Gene Transfer Clinical Trial of scAAV9.U1a.hSGSH

NCT02716246
View directory record Official record
Conditions
MPS IIIA, Sanfilippo Syndrome, Sanfilippo A, Mucopolysaccharidosis III
Interventions
UX111, Prophylactic Immunomodulatory (IM) Therapy, Optimized Prophylactic IM Therapy, Adjuvant IM Therapy
Biological · Drug
Lead sponsor
Ultragenyx Pharmaceutical Inc
Industry
Eligibility
Not listed
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2029
U.S. locations
2
States / cities
Columbus, Ohio • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 16, 2026 · Synced Jul 22, 2026, 1:34 PM EDT
Enrolling by invitation Phase 3 Interventional

Follow-up Study of AAV-Mediated Gene Transfer (UX111; Previously Known as ABO-102) for MPS Type IIIA

NCT04360265
View directory record Official record
Conditions
Mucopolysaccharidosis IIIA, MPS IIIA, Sanfilippo Syndrome, Sanfilippo A
Interventions
No Investigational Product, Adjuvant Immunomodulatory (IM) Therapy
Other · Drug
Lead sponsor
Ultragenyx Pharmaceutical Inc
Industry
Eligibility
Not listed
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 16, 2026 · Synced Jul 22, 2026, 1:34 PM EDT
Completed No phase listed Observational

Natural History Studies of Mucopolysaccharidosis III

NCT02037880
View directory record Official record
Conditions
Mucopolysaccharidosis Type IIIA, Mucopolysaccharidosis Type IIIB
Interventions
Lumbar puncture, Magnetic Resonance Imaging (MRI) of the brain
Procedure · Device
Lead sponsor
Nationwide Children's Hospital
Other
Eligibility
2 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 15, 2015 · Synced Jul 22, 2026, 1:34 PM EDT
Completed No phase listed Observational Results available

A Study of Patients With Sanfilippo Syndrome Type A (MPS IIIA)

NCT01047306
View directory record Official record
Conditions
Sanfilippo Syndrome Type A
Interventions
assessment
Other
Lead sponsor
Shire
Industry
Eligibility
1 Year and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 10, 2021 · Synced Jul 22, 2026, 1:34 PM EDT
Completed Phase 1Phase 2 Interventional Results available

A Study to Assess the Safety, Tolerability, and Efficacy of Long-term SOBI003 Treatment in Pediatric MPS IIIA Patients

NCT03811028
View directory record Official record
Conditions
Sanfilippo Syndrome Type A (MPS IIIA)
Interventions
SOBI003
Drug
Lead sponsor
Swedish Orphan Biovitrum
Industry
Eligibility
18 Months to 78 Months
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
2
States / cities
Oakland, California • Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 24, 2022 · Synced Jul 22, 2026, 1:34 PM EDT
Not listed Phase 2Phase 3 Interventional

Study of AAVrh10-h.SGSH Gene Therapy in Patients With Mucopolysaccharidosis Type IIIA (MPS IIIA)

NCT03612869
View directory record Official record
Conditions
Mucopolysaccharidosis Type IIIA
Interventions
LYS-SAF302
Drug
Lead sponsor
LYSOGENE
Industry
Eligibility
6 Months and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
4
States / cities
Orange, California • Minneapolis, Minnesota • New York, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 30, 2021 · Synced Jul 22, 2026, 1:34 PM EDT
Completed No phase listed Observational

Neurobehavioral Phenotypes in MPS III

NCT01873911
View directory record Official record
Conditions
Sanfilippo Syndrome Type A, Sanfilippo Syndrome Type B, Hurler Syndrome
Interventions
Not listed
Lead sponsor
University of Minnesota
Other
Eligibility
2 Years to 12 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 31, 2019 · Synced Jul 22, 2026, 1:34 PM EDT
Active, not recruiting Phase 1Phase 2 Interventional

Study of DNL126 in Pediatric Participants With Mucopolysaccharidosis Type IIIA (Sanfilippo Syndrome Type A)

NCT06181136
View directory record Official record
Conditions
Mucopolysaccharidosis Type IIIA
Interventions
DNL126
Drug
Lead sponsor
Denali Therapeutics Inc.
Industry
Eligibility
0 Years to 18 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
4
States / cities
Oakland, California • Iowa City, Iowa • Chapel Hill, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 12, 2026 · Synced Jul 22, 2026, 1:34 PM EDT
Completed No phase listed Observational

A Natural History Study of Biomarkers and Clinical Outcomes in Mucopolysaccharidosis Type IIIA (MPS IIIA; Sanfilippo Syndrome)

NCT05523206
View directory record Official record
Conditions
Mucopolysaccharidosis III-A
Interventions
No intervention
Other
Lead sponsor
Sanguine Biosciences
Industry
Eligibility
4 Months to 13 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Woburn, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 29, 2025 · Synced Jul 22, 2026, 1:34 PM EDT
Terminated Phase 1Phase 2 Interventional Results available

Gene Transfer Study of ABO-102 in Patients With Middle and Advanced Phases of MPS IIIA Disease

NCT04088734
View directory record Official record
Conditions
MPS IIIA, Sanfilippo Syndrome, Sanfilippo A, Mucopolysaccharidosis III
Interventions
ABO-102
Drug
Lead sponsor
Ultragenyx Pharmaceutical Inc
Industry
Eligibility
2 Years to 18 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 24, 2023 · Synced Jul 22, 2026, 1:34 PM EDT
Completed Phase 1Phase 2 Interventional Results available

A Study to Assess the Safety and Tolerability of SOBI003 in Pediatric MPS IIIA Patients

NCT03423186
View directory record Official record
Conditions
Sanfilippo Syndrome Type A (MPS IIIA)
Interventions
SOBI003
Drug
Lead sponsor
Swedish Orphan Biovitrum
Industry
Eligibility
12 Months to 72 Months
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
2
States / cities
Oakland, California • Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 18, 2021 · Synced Jul 22, 2026, 1:34 PM EDT
Completed Phase 2 Interventional Results available

Randomized, Controlled, Open-label, Multicenter, Safety and Efficacy Study of rhHNS Administration Via an IDDD in Pediatric Patients With Early Stage MPS IIIA Disease

NCT02060526
View directory record Official record
Conditions
Sanfilippo Syndrome
Interventions
Recombinant human heparan N-sulfatase [rhHNS]
Drug
Lead sponsor
Shire
Industry
Eligibility
12 Months to 48 Months
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
3
States / cities
Torrance, California • Minneapolis, Minnesota • Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 7, 2021 · Synced Jul 22, 2026, 1:34 PM EDT
Recruiting Phase 1 Interventional

Phase 1 Study of GC1130A in Patients With Sanfilippo Syndrome Type A (MPS IIIA)

NCT06567769
View directory record Official record
Conditions
Sanfilippo Syndrome Type A
Interventions
GC1130A
Drug
Lead sponsor
GC Biopharma Corp
Industry
Eligibility
12 Months to 18 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
2
States / cities
Oakland, California • Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 27, 2025 · Synced Jul 22, 2026, 1:34 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 23, 2021 · Synced Jul 22, 2026, 1:34 PM EDT
Terminated Phase 2 Interventional Results available

An Extension Study to Determine Safety and Efficacy for Pediatric Patients With MPS Type IIIA Disease Who Participated in Study HGT-SAN-093.

NCT02350816
View directory record Official record
Conditions
Sanfilippo Syndrome, Mucopolysaccharidosis (MPS)
Interventions
HGT-1410
Drug
Lead sponsor
Shire
Industry
Eligibility
12 Months to 48 Months
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
2
States / cities
Minneapolis, Minnesota • Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 10, 2021 · Synced Jul 22, 2026, 1:34 PM EDT