An Open-Label, Multicenter Study To Evaluate the Dose, Efficacy, Safety and Tolerability of PDNO (Nitrosooxypropanol) Infusion in Patients With Pulmonary Hypertension After Cardiopulmonary Bypass (CPB) Surgery for Coronary Artery Bypass Grafting (CABG) or Mitral or Aortic Valve Repair or Replacement With or Without CABG
Status: Unknown
Location: See all (2) locations...
Intervention Type: Drug
Study Type: Interventional
Study Phase: Phase 2
SUMMARY
This is an open-label, multicenter study evaluating the dose, effect, safety and tolerability of intravenous PDNO infusion given to patients undergoing cardiopulmonary bypass (CPB) surgery with post-operative acute pulmonary hypertension (aPH).
Eligibility
Participation Requirements
Sex: All
Minimum Age: 18
Healthy Volunteers: f
View:
• Ability to understand and willing to sign an informed consent form (ICF)
• Male and female patients, age ≥ 18 years
• Planned to undergo elective cardiopulmonary bypass (CPB) for coronary artery bypass grafting (CABG), aortic valve repair (AVR) or mitral valve repair (MVR) with or without CABG
• Diagnosed with echocardiographic signs of pulmonary artery systolic pressure (PASP) \>50 mmHg , as estimated by doppler defined echocardiography using a modified Bernoulli equation: PASP ≈ 4 (tricuspid regurgitant jet velocity)\^2 + central venous pressure (CVP)
Locations
Other Locations
Sweden
Sahlgrenska University Hospital, Anaesthesiology and Intensive Care
RECRUITING
Gothenburg
Örebro University Hospital, Vascular and Thoracic Department (Kärl-Thoraxkliniken)
RECRUITING
Örebro
Contact Information
Primary
Christofer Adding, MD/PhD
christofer.adding@attgeno.com
+46 (0) 70 788 67 66
Time Frame
Start Date:2022-10-23
Completion Date:2023-12-31
Participants
Target number of participants:12
Treatments
Experimental: Treatment with PDNO (placebo during baseline and washout observation periods before & after PDNO)
PDNO will be administered as an incremental intravenous infusion of respectively 15 minutes with the planned dosage: 3, 10, 30, 45 and 60 nmol/kg/min. If no effect on MPAP/PVR is seen at 60 nmol/kg/min in the first patients treated, further dose escalation up to 120 nmol/kg/min is possible, if recommended by the Internal Safety Review Committe (iSRC) following careful review of collected safety data. The iSRC will in any case review all collected data after 4, 8 and 12 patients (if applicable also after 16 and 20 patients). PDNO is administered together with a carrier buffer (NaHCO3-) flow into a central venous catheter. Placebo (NaCl, commercially available dilution solution for parenteral use, 9 mg/mL) will be administered during the baseline and washout observation periods before and after start of IMP infusion.