Status:

RECRUITING

LEVEL-2: LEVosimendan to Improve Exercise Limitation in Patients With PH-HFpEF-2

Lead Sponsor:

Tenax Therapeutics, Inc.

Conditions:

Pulmonary Hypertension Associated With HFpEF

Eligibility:

All Genders

18-85 years

Phase:

PHASE3

Brief Summary

The purpose of this study is to assess the efficacy and safety of the study drug, levosimendan (given orally), compared to placebo in participants with pulmonary hypertension with heart failure with p...

Detailed Description

Approximately 540 participants will be randomized in a 2:1 ratio to receive an oral dose of levosimendan or placebo. Participants will be eligible for an open label extension (OLE) of 52-weeks.

Eligibility Criteria

Inclusion

  • Men or women, ≥18 to 85 years of age
  • NYHA Class II or III or ambulatory NYHA Class IV symptoms
  • A diagnosis of World Health Organization (WHO) Group 2 PH-HFpEF with qualifying hemodynamics verified by right heart catheterization (RHC)
  • A qualifying baseline RHC
  • A qualifying echocardiogram
  • A qualifying 6-MWD
  • A 48-hour ambulatory cardiac rhythm monitor during the Screening Period
  • Requirements related to child bearing potential, contraception, and egg/sperm donation)

Exclusion

  • A diagnosis of PH WHO Groups 1, 3, 4, or 5
  • Echocardiographic evidence for hypertrophic cardiomyopathy, restrictive cardiomyopathy, constrictive pericarditis, cardiac amyloidosis, or infiltrative cardiomyopathy
  • Structural heart repair or replacement of the aortic valve or mitral valve (surgical or percutaneous) OR, planned valve intervention OR, the presence of significant valve disease
  • A diagnosis of pre-existing lung disease
  • History of severe allergic or anaphylactic reaction or hypersensitivity to the excipients in the investigational product
  • Major surgery within 60 days
  • Prior heart, lung, or heart-lung transplants or life expectancy of \<12 months
  • History of clinically significant other diseases that may limit or complicate participation in the study

Key Trial Info

Start Date :

December 1 2025

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

June 30 2029

Estimated Enrollment :

540 Patients enrolled

Trial Details

Trial ID

NCT07288398

Start Date

December 1 2025

End Date

June 30 2029

Last Update

December 17 2025

Active Locations (91)

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Page 1 of 23 (91 locations)

1

Tenax Investigational Site

Alexander City, Alabama, United States, 35010

2

Tenax Investigational Site

Tamarac, Florida, United States, 33321

3

Tenax Investigational Site

Mount Prospect, Illinois, United States, 60056

4

Tenax Investigational Site

Peoria, Illinois, United States, 61636

LEVEL-2: LEVosimendan to Improve Exercise Limitation in Patients With PH-HFpEF-2 | DecenTrialz