Multi-center, Open-label, Single-ascending Dose Study of Safety and Tolerability of TN-201 in Adults With Symptomatic MYBPC3 Mutation-associated HCM
MyPEAK-1
First-in-Human, Open-Label, Safety, Tolerability, Dose-Finding, Pharmacodynamic and Cardiac Transgene Expression Study of TN-201, a Recombinant Adeno-associated Virus Serotype 9 (AAV9) Containing Myosin Binding Protein C Transgene, in Adults With MYBPC3 Mutation-associated Hypertrophic Cardiomyopathy (HCM)
1 other identifier
interventional
30
1 country
10
Brief Summary
This is a first-in-human, non-randomized, open-label study designed to evaluate the safety, tolerability, and pharmacodynamics (PD) of TN-201 in adult patients with symptomatic hypertrophic cardiomyopathy (HCM) caused by mutations in the MYBPC3 gene.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_1
Started Aug 2023
Longer than P75 for phase_1
10 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
April 18, 2023
CompletedFirst Posted
Study publicly available on registry
May 1, 2023
CompletedStudy Start
First participant enrolled
August 10, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 1, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
August 1, 2032
March 19, 2026
March 1, 2026
4 years
April 18, 2023
March 18, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Number and severity of Adverse Events over the course of the study.
5 Years
Number of Serious Adverse Events related to study drug.
5 Years
Secondary Outcomes (1)
Change from baseline to Week 52 in Kansas City Cardiomyopathy Questionnaire Clinical Summary Score (KCCQ-CSS).
52 Weeks
Other Outcomes (9)
Expression levels of vector genomes and transgene messenger ribonucleic acid (mRNA) and MyBP-C protein in right ventricular (RV) septal biopsy samples at Pre-Treatment, Week 26, and Week 52.
52 Weeks
Change from Pre-Treatment period in N-terminal pro B-type natriuretic peptide (NTproBNP), and high-sensitivity cardiac troponin I (hs-cTnI) levels.
5 Years
Percentage of patients who had a change in New York Heart Association (NYHA) Functional Class from baseline.
5 Years
- +6 more other outcomes
Study Arms (2)
Cohort 1
EXPERIMENTALDose for Cohort 1 will be 3E13 vg/kg
Cohort 2
EXPERIMENTALDose for Cohort 2 will be 6E13 vg/kg
Interventions
TN-201 is a recombinant adeno-associated virus serotype 9 (AAV9) containing Myosin Binding Protein C (MYBPC3) transgene. It is a single (one-time) intravenous dose.
Eligibility Criteria
You may qualify if:
- MYBPC3 mutation
- Hypertrophic Cardiomyopathy (obstructive and nonobstructive)
- Left Ventricular Ejection Fraction ≥45%
- NYHA Functional Class II or III symptoms
- NT-proBNP ≥160pg/ml
You may not qualify if:
- High AAV9 neutralizing antibody titer
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (10)
UC San Diego Altman Clinical and Translational Research Institute - Center for Clinical Research
La Jolla, California, 92093, United States
University of California San Francisco
San Francisco, California, 94117, United States
Emory University
Atlanta, Georgia, 30322, United States
Brigham and Women's Hospital
Boston, Massachusetts, 02115, United States
Mayo Clinic
Rochester, Minnesota, 55905, United States
The Christ Hospital Physicians - The Ohio Heart and Vascular Center
Cincinnati, Ohio, 45219, United States
Cleveland Clinic
Cleveland, Ohio, 44195, United States
Oregon Health & Science University
Portland, Oregon, 97239, United States
Hospital of the University of Pennsylvania
Philadelphia, Pennsylvania, 19104, United States
Houston Methodist Hospital
Houston, Texas, 77030, United States
Related Publications (1)
Grisorio L, Bongianino R, Gianeselli M, Priori SG. Gene therapy for cardiac diseases: methods, challenges, and future directions. Cardiovasc Res. 2024 Nov 25;120(14):1664-1682. doi: 10.1093/cvr/cvae207.
PMID: 39302117DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SEQUENTIAL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 18, 2023
First Posted
May 1, 2023
Study Start
August 10, 2023
Primary Completion (Estimated)
August 1, 2027
Study Completion (Estimated)
August 1, 2032
Last Updated
March 19, 2026
Record last verified: 2026-03