Tenax Therapeutics Announces FDA Clearance of IND for TNX-103 (oral levosimendan) for the Treatment of Pulmonary Hypertension with Heart Failure with Preserved Ejection Fraction (PH-HFpEF), Initiation of Phase 3 sites expected 2023 - GlobeNewswire

First Phase 3 study of TNX-103 in PH-HFpEF patients to start in 4Q 2023 (The LEVEL Study)FDA agreement that 6MWD will be the primary endpoint for both......