Study of Safety, Tolerability and Efficacy of PBGM01 in Pediatric Participants With GM1 Gangliosidosis
Public ClinicalTrials.gov record NCT04713475. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Phase 1/2 Open-Label, Multicenter Study to Assess the Safety, Tolerability and Efficacy of a Single Dose of PBGM01 Delivered Into the Cisterna Magna of Pediatric Type 1 (Early Onset) and Type 2a (Late Onset) Infantile GM1 Gangliosidosis
Study identification
- NCT ID
- NCT04713475
- Recruitment status
- Active, not recruiting
- Study type
- Interventional
- Phase
- Phase 1, Phase 2
- Lead sponsor
- Gemma Biotherapeutics
- Industry
- Enrollment
- 26 participants
Conditions and interventions
Conditions
Interventions
- PBGM01 Biological
Biological
Eligibility (public fields only)
- Age range
- 1 Month to 24 Months
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Mar 16, 2021
- Primary completion
- Jan 31, 2028
- Completion
- Jan 31, 2029
- Last update posted
- Jun 29, 2026
2021 – 2029
United States locations
- U.S. sites
- 4
- U.S. states
- 4
- U.S. cities
- 4
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Benioff Children's Hospital | Oakland | California | 94158 | — |
| University of Minnesota | Minneapolis | Minnesota | 55455 | — |
| Children's Hospital at St. Peter's University Hospital | New Brunswick | New Jersey | 08901 | — |
| The Children's Hospital of Philadelphia | Philadelphia | Pennsylvania | 19104 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 3 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04713475, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jun 29, 2026 · Synced Jul 22, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04713475 live on ClinicalTrials.gov.