LEVosimendan to Improve Exercise Limitation in Patients With PH-HFpEF

Prior treatment

• 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

Other illness

• 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 clinically significant other diseases that may limit or complicate participation in the study.

Other

• A diagnosis of PH WHO Groups 1, 3, 4, or 5.

• Men or women, greater than or equal to18 to 85 years of age.
• NYHA Class II or III or NYHA class IV symptoms.
• A diagnosis of World Health Organization (WHO) Group 2 PH-HFpEF with qualifying hemodynamics
• Qualifying Baseline RHC.
• Qualifying echocardiogram
• 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