A Multinational, Randomized, Double-blind, Placebo-controlled Study to Assess the Efficacy, Pharmacodynamics, Pharmacokinetics, and Safety of Venglustat in Late-onset GM2
Public ClinicalTrials.gov record NCT04221451. 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
A Multicenter, Multinational, Randomized, Double-blind, Placebo-controlled Study to Assess the Efficacy, Pharmacodynamics, Pharmacokinetics, Safety, and Tolerability of Venglustat in Late-onset GM2 Gangliosidosis (Tay-Sachs Disease and Sandhoff Disease) Together With a Separate Basket for Juvenile/Adolescent Late-onset GM2 Gangliosidosis and Ultra-rare Diseases Within the Same and Similar Glucosylceramide-based Sphingolipid Pathway
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Primary Objectives: Primary population (adult participants with late-onset GM2 gangliosidosis): To assess the efficacy and pharmacodynamics (PD) of daily oral dosing of venglustat when administered over a 104-week period Secondary population (participants with juvenile/adolescent late-onset GM2 gangliosidosis, GM1 gangliosidosis, saposin C deficiency, sialidosis type 1 or juvenile/adult galactosialidosis): To assess PD response (plasma and CSF GL-1 biomarker and disease specific biomarkers) of venglustat when administered once daily over a 104-week period Secondary Objectives: Primary population: * To assess the PD of daily oral dosing of venglustat and the effect of venglustat on selected performance test and scale over a 104-week period * To determine the safety and tolerability of venglustat when administered orally once daily over a 104-week period * To assess the pharmacokinetics (PK) of venglustat in plasma and cerebrospinal fluid (CSF) Secondary population: * To assess the effect of venglustat on selected performance tests and scale over a 104-week period * To determine the safety and tolerability of venglustat when administered once daily over a 104-week period * To assess the PK of venglustat in plasma and CSF * To assess the acceptability and palatability of the venglustat tablet
Study identification
- NCT ID
- NCT04221451
- Recruitment status
- Terminated
- Study type
- Interventional
- Phase
- Phase 3
- Enrollment
- 75 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 2 Years and older
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jun 28, 2020
- Primary completion
- Dec 25, 2024
- Completion
- Dec 25, 2024
- Last update posted
- Jan 27, 2026
2020 – 2024
United States locations
- U.S. sites
- 5
- U.S. states
- 5
- U.S. cities
- 5
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Ataxia Center and HD Center of Excellence, 300 UCLA Med Plaza, Suite B200 - Investigational site number 8400004 | Los Angeles | California | 90095 | — |
| Emory Genetics - Investigational site number 8400006 | Atlanta | Georgia | 30322 | — |
| NIH National Human Genome Research Institute - 10 Center Dr - Bldg. 10 CRC3-2551 MSC 1205 - Investigational site number 8400005 | Bethesda | Maryland | 20892 | — |
| Massachusetts General Hospital - Charles River Plaza 175 Cambridge St. Ste 340 - Investigational site number 8400002 | Boston | Massachusetts | 02114 | — |
| NYU Langone - 550 First Avenue-Investigational site number 8400001 | New York | New York | 10016 | — |
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 18 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04221451, 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 Jan 27, 2026 · Synced Sep 7, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04221451 live on ClinicalTrials.gov.