A Study of PBFT02 in Participants With FTD and Mutations in the Granulin Precursor (GRN) or C9ORF72 Genes
Public ClinicalTrials.gov record NCT04747431. 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 Phase 1b Open-Label, Multicenter, Dose-Escalation Study to Assess the Safety, Tolerability, and Pharmacodynamic Effects of a Single Dose of PBFT02 Delivered Into the ICM of Adults With FTD and Mutations in the GRN or C9ORF72 Genes
Study identification
- NCT ID
- NCT04747431
- Recruitment status
- Active, not recruiting
- Study type
- Interventional
- Phase
- Phase 1, Phase 2
- Lead sponsor
- Passage Bio, Inc.
- Industry
- Enrollment
- 30 participants
Conditions and interventions
Interventions
- PBFT02 Drug
Drug
Eligibility (public fields only)
- Age range
- 35 Years to 75 Years
- 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
- Sep 13, 2021
- Primary completion
- Jul 31, 2028
- Completion
- Jul 31, 2031
- Last update posted
- May 14, 2026
2021 – 2031
United States locations
- U.S. sites
- 4
- U.S. states
- 4
- U.S. cities
- 4
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Michigan Alzheimer's Disease Center | Ann Arbor | Michigan | 48105 | — |
| University of Pennsylvania | Philadelphia | Pennsylvania | 19104 | — |
| Vanderbilt University Medical Center | Nashville | Tennessee | 37232 | — |
| University of Texas at Houston | Houston | Texas | 77030 | — |
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 6 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04747431, 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 May 14, 2026 · Synced May 20, 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 NCT04747431 live on ClinicalTrials.gov.