Tenax Therapeutics Announces Result of Prespecifed Blinded Sample Size Assessment

Core Insights - Tenax Therapeutics announced that the Blinded Sample Size Re-estimation (BSSR) of the LEVEL trial shows it is adequately powered to detect a 25-meter change in the 6-minute walk distance (6MWD), confirming that the target enrollment remains unchanged and is expected to complete in the first half of 2026 [1][2][3] Group 1: LEVEL Study Details - LEVEL is a Phase 3 clinical trial evaluating TNX-103 (oral levosimendan) for patients with pulmonary hypertension in heart failure with preserved ejection fraction (PH-HFpEF) in the U.S. and Canada [2] - The BSSR results indicated that the observed change in 6MWD from the first 150 randomized patients was less than the assumed 55 meters [2] - The company expects to share topline data in the second half of 2026 and remains confident in executing its Phase 3 development plan for TNX-103 [3] Group 2: LEVEL-2 Study Initiation - Tenax has initiated LEVEL-2, a global Phase 3 study of TNX-103, aiming to enroll approximately 540 PH-HFpEF patients with a 2:1 randomization to receive TNX-103 or placebo [3][4] - The primary endpoint for LEVEL-2 is the change in 6MWD at Week 26, with secondary endpoints including changes in Kansas City Cardiomyopathy Questionnaire (KCCQ) and New York Heart Association (NYHA) Functional Class [3] Group 3: Global Study Sites and Safety Observations - Over 100 sites across 15 countries have been selected for participation in LEVEL-2, with a rigorous process implemented to ensure consistency in patient hemodynamic assessments [4] - The LEVEL-2 study includes a 6-month blinded safety observation following the 26-week efficacy assessment to provide a robust safety database for regulatory review [4] Group 4: Levosimendan Overview - Levosimendan is a first-in-class K-ATP channel activator/calcium sensitizer being evaluated for treating PH-HFpEF, with market authorization in 60 countries for intravenous use in acutely decompensated heart failure [5] - The Phase 2 HELP study demonstrated the potential of both intravenous (TNX-101) and oral (TNX-103) formulations to improve exercise capacity and quality of life in patients with PH-HFpEF [5] Group 5: Company Background - Tenax Therapeutics is a Phase 3 development-stage pharmaceutical company focused on novel cardiopulmonary therapies, holding global rights to develop and commercialize levosimendan for PH-HFpEF, which currently lacks approved treatments [7]