Tenaya Therapeutics Reports Third Quarter 2025 Financial Results and Provides Business Update

Core Insights - Tenaya Therapeutics announced significant advancements in its gene therapy programs, TN-201 and TN-401, aimed at treating serious genetic cardiomyopathies, with positive recommendations from Data Safety Monitoring Boards for both products [2][3]. Business and Program Updates - TN-201, a gene therapy for MYBPC3-associated hypertrophic cardiomyopathy (HCM), showed robust transduction and durable expression, with a dose-dependent increase in MyBP-C protein. Cohort 1 patients exhibited decreases in circulating biomarkers and reductions in left ventricular hypertrophy over time [3]. - The MyPEAK-1 trial for TN-201 is currently on clinical hold, with the company working with the FDA to resolve the issue and resume dosing [4]. - TN-401, targeting PKP2-associated arrhythmogenic right ventricular cardiomyopathy (ARVC), has completed dosing in Cohort 2 of the RIDGE-1 trial, with initial safety and biopsy data expected to be shared by year-end 2025 [5][6]. Research and Development Updates - A seroprevalence study indicated that nearly 95% of MYBPC3-associated HCM patients had low pre-existing immunity to AAV9, suggesting a favorable patient eligibility for the MyPEAK-1 trial [7]. - The MyClimb study, focusing on pediatric patients with MYBPC3-associated HCM, revealed that 93% of participants had the nonobstructive HCM phenotype, highlighting the need for treatment options [7]. - Tenaya presented new preclinical data on cardiac function improvement in a pig model of ischemic heart failure, achieved through a proprietary in vivo reprogramming cocktail [7]. Financial Highlights - As of September 30, 2025, Tenaya reported cash, cash equivalents, and marketable securities totaling $56.3 million, sufficient to support operations into the second half of 2026 [12]. - Research and Development (R&D) expenses for Q3 2025 were $15.4 million, down from $20.4 million in Q3 2024. General and Administrative (G&A) expenses also decreased to $5.6 million from $6.4 million in the same period [12][16]. - The net loss for Q3 2025 was $20.3 million, or $0.12 per share, compared to a net loss of $25.6 million, or $0.30 per share, in Q3 2024 [12][16].