Overview Open-Label Rollover Study of Levosimendan in PH-HFpEF Patients Status: Active, not recruiting Trial end date: 2024-02-01 Target enrollment: Participant gender: Summary PH-HFpEF patients will receive weekly open-label doses of levosimendan and be periodically evaluated for safety and effectiveness in extended use. Phase: Phase 2 Details Lead Sponsor: Tenax Therapeutics, Inc.Treatments: Pharmaceutical SolutionsSimendan