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ClinicalTrials.gov public records Last synced Oct 22, 2026, 9:26 AM EDT

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Showing 1–4 of 4 matching trials from the live ClinicalTrials.gov search.
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
Active, not recruiting No phase listed Observational

Long-term Follow-Up for RGX-121

NCT04597385
Conditions
Mucopolysaccharidosis II
Interventions
Long-term Follow-Up
Other
Lead sponsor
REGENXBIO Inc.
Industry
Eligibility
Male only
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2028
U.S. locations
3
States / cities
San Francisco, California • New Brunswich, New Jersey • Philadelphia, Pennsylvania
Conditions
MPS II, Hunter Syndrome (MPS II)
Interventions
RGX-121-3102
Genetic
Lead sponsor
REGENXBIO Inc.
Industry
Eligibility
4 Months to 5 Years · Male only
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2031
U.S. locations
1
States / cities
New Brunswick, New Jersey
Conditions
Mucopolysaccharidosis Type II (MPS II)
Interventions
RGX-121
Genetic
Lead sponsor
REGENXBIO Inc.
Industry
Eligibility
5 Years to 17 Years · Male only
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Oakland, California