LEVosimendan to Improve Exercise Limitation in Patients With PH-HFpEF

Summary

This study will evaluate the efficacy of TNX-103 (oral levosimendan) compared with placebo in subjects with PH-HFpEF as measured by the change in 6-Minute Walk Distance (6 MWD; Day 1 to Week 12).

Eligibility

Inclusion Criteria:

1. Men or women, greater than or equal to18 to 85 years of age.
2. NYHA Class II or III or NYHA class IV symptoms.
3. A diagnosis of World Health Organization (WHO) Group 2 PH-HFpEF with qualifying hemodynamics
4. Qualifying Baseline RHC.
5. Qualifying echocardiogram
6. Qualifying 6-MWD
7. A 48-hour ambulatory cardiac rhythm monitor during the Screening Period.
8. Requirements related to child bearing potential, contraception, and egg/sperm donation

Exclusion Criteria:

1. A diagnosis of PH WHO Groups 1, 3, 4, or 5.
2. Echocardiographic evidence for hypertrophic cardiomyopathy, restrictive cardiomyopathy, constrictive pericarditis, cardiac amyloidosis, or infiltrative cardiomyopathy
3. 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
4. A diagnosis of pre-existing lung disease
5. History of severe allergic or anaphylactic reaction or hypersensitivity to the excipients in the investigational product.
6. Major surgery within 60 days.
7. Prior heart, lung, or heart-lung transplants or life expectancy of \<12 months
8. History of clinically significant other diseases that may limit or complicate participation in the study.

Conditions2

Interventions1

Locations41 sites

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