Sponsor decision

This is a Phase 2a, open-label, multiple-dose study to assess the safety, tolerability, and efficacy of JK07 in participants 18 to 85 years of age with diagnosed HF and cpcPH.

At least 20 and up to approximately 30 participants will be enrolled and receive JK07 high dose in this open-label trial.

Key Inclusion Criteria:

• Participants with HF New York Heart Association Class II-III.
• Participants will be classified as having HFrEF (LVEF ≤ 40%) or HFpEF (LVEF >40% and ≤70%).
• Right heart catheterization (RHC) based evidence of cpcPH:
• PVR ≥2.5 WU; AND
• mPAP ≥25 mmHg; AND
• PAWP ≥16 mmHg

Key Exclusion Criteria:

• Diagnosis of PH in World Health Organization (WHO) Group 1, WHO Group 3, WHO Group 4, or WHO Group 5.
• Contraindicated to RHC that can be left in place for approximately 6 hours.
• A diagnosis of pre-existing lung disease including congenital abnormalities, full or partial pneumonectomy, or previous therapeutic radiation of lungs or mediastinum.
• Body mass index (BMI) >45 kg/m² at screening.