A Randomized Placebo-procedure Controlled Trial of the Enhancor System (PULmonary Artery Denervation) to Evaluate Safety and Efficacy in Patients With Combined Pre- and Post-capillary Pulmonary Hypertension Associated With Left Heart Disease

Roll-in Subjects: Prior to enrollment of the first randomized subject at each site, up to two roll-in subjects per operator (maximum 2 operators per site) who meet all eligibility criteria for the randomized trial may be enrolled. Roll-in subjects will receive PADN plus GDMT. Roll-in subjects will undergo all protocol-specified assessments. The sponsor will determine when each operator has achieved acceptable experience with the PADN procedure to advance to the randomized trial, after which no further roll-in patients will be enrolled. Operators who have performed ≥3 prior PADN procedures may not need to enroll a roll-in patient prior to beginning randomization. Randomized Subjects: Subjects with CpcPH due to LHD who meet all eligibility criteria will be randomized in a 1:1 ratio (stratified by investigational site and by core laboratory assessed LVEF \[≤40% vs \>40%\]) to one of the two treatment arms: 1. Intervention: PADN plus GDMT 2. Control: Placebo-procedure plus GDMT Subjects will undergo clinical follow-up at 1, 6, 12, 24 and 36 months. At 24 months, control subjects who have experienced a primary efficacy endpoint event and who still meet all eligibility criteria will be offered the opportunity to cross over to the PADN plus GDMT group.