🏛️ Verified NIH Record • Updated 2026-05-13

A Study of PBFT02 in Participants With FTD and Mutations in the Granulin Precursor (GRN) or C9ORF72 Genes (NCT04747431)

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

🔵 Active, Not Recruiting Phase1 / Phase2 💊 Investigational Drug / Biologic Sponsor: Passage Bio, Inc.

🩺 Plain-English Summary (8th-Grade Level)

PBFT02 is a gene therapy for frontotemporal dementia intended to deliver a functional copy of the GRN gene to the brain. This study will assess the safety, tolerability and efficacy of this treatment in patients with frontotemporal dementia and mutations in the granulin precursor (GRN) or chromosome 9 open reading frame 72 (C9ORF72) genes

Who can join: Review the eligibility criteria below.

Location: Michigan Alzheimer's Disease Center — Ann Arbor, Michigan

Age range: 35 Years to 75 Years

🧪 Interventions in This Study

📋 "Do I Qualify?" — 1-Minute Self Screener

Instant Checklist

Full eligibility criteria are available on the official NIH protocol. View the criteria ↗

📍 All Participating Trial Locations (10 Sites)

  • Michigan Alzheimer's Disease Center — Ann Arbor, Michigan
  • University of Pennsylvania — Philadelphia, Pennsylvania
  • Vanderbilt University Medical Center — Nashville, Tennessee
  • University of Texas at Houston — Houston, Texas
  • Eastern Health-Box Hill Hospital — Melbourne, Victoria
  • Hospital das Clinicas da Universidade Federal de Minas Gerais (UFMG) — Minas Gerais,
  • Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo (HCFMUSP) — São Paulo,
  • University of Toronto, Toronto Western Hospital — Toronto, Ontario
  • Montreal Neurological Institute-Hospital — Montreal, Quebec
  • Centro Hospitalar e Universitário de Coimbra — Coimbra,

💰 Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.

💡 How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Review the official NIH record below to find the coordinating site.
  3. Ask about the visit schedule, what is covered at no cost, and any travel support.
  4. Confirm with your own doctor before making a decision.
🏛️ View Official NIH Record ↗