Company Decision.

With this study researchers want to find the highest safe dose of the soluble Guanylate Cyclase (sGC) Activator, BAY 1211163 and how safe and well the study drug works. Furthermore researchers want to gather information on the way the body absorbs, distributes and gets rid of the study drug given as increasing multiple doses by inhalation to patients who cannot breathe by their own and suffer from a type of lung failure that causes fluid to build up in the lungs making breathing difficult (ARDS)

Inclusion Criteria:

• Intubated, mechanically ventilated moderate or severe ARDS patients [diagnosed according to Berlin definition of ARDS, including PEEP ≥ 5 cmH2O, X-ray, with PaO2/FiO2 between 80 and 200 mmHg (inclusive).
• Initial diagnosis of ARDS prior to study inclusion, confirmation of ongoing moderate or severe ARDS with PaO2/FiO2 between 80 and 200 mmHg (inclusive) during this time under maintained invasive mechanical ventilation.
• Hypoxemia with PaO2/FiO2 between 80 and 200 mmHg (inclusive) maintained for at least 8 hours (recommend to be 12 hours) after screening, despite consent to follow recommendation on ventilator strategy and PEEP management.
• Time from intubation must be ≤ 96h.
• Male and non-pregnant female.
• Informed consent of capable patient or, in case of patient being incapable of giving informed consent, consent for study inclusion will be sought according to applicable laws and regulations.

Exclusion Criteria:

• PaO2/FiO2 > 200 mmHg or < 80 mmHg at time of evaluation for inclusion.
• Moribund participants not expected to survive 24 hours (clinical decision).
• Expected duration of invasive mechanical ventilation less than 96 hours (clinical decision).
• History of pneumectomy or lung transplant.
• Current lung malignancy (including lung metastasis), or other malignancy requiring chemotherapy or radiation within the last month.
• History of chronic kidney disease and requiring renal replacement therapy dialysis at screening and/or baseline.
• Chronic liver disease Child-Pugh Class B and C.
• Hypoalbuminemia - serum albumin < 2.0 g/dL.
• Acute left ventricular failure and/or Left Ventricular Ejection Fraction < 30 %.
• Severe bronchopulmonal fistula.
• Clinical suspicion of pulmonary veno-occlusive disease.
• Heart right-sided endocarditis, tumors or mass.
• Rescue procedures already initiated at screening and/or Day 1.
• Use of co-medications involving moderate and strong inhibitors for CYP2C8 liver enzymes one week before assignment to intervention or during intervention.
• Off-label use of medication to treat Coronavirus SARS-CoV-2 virus unless recommended by scientific guidelines and accepted by DMC, investigator and sponsor.
• Plan to participate or past participation (within 30 days prior to Study Day 1) in other interventional studies.](streamdown:incomplete-link)

Availability of this study's data will later be determined according to Bayer's commitment to the EFPIA/PhRMA "Principles for responsible clinical trial data sharing". This pertains to scope, timepoint and process of data access. As such, Bayer commits to sharing upon request from qualified researchers patient-level clinical trial data, study-level clinical trial data, and protocols from clinical trials in patients for medicines and indications approved in the US and EU as necessary for conducting legitimate research. This applies to data on new medicines and indications that have been approved by the EU and US regulatory agencies on or after January 01, 2014.

Interested researchers can use www.vivli.org to request access to anonymized patient-level data and supporting documents from clinical studies to conduct research. Information on the Bayer criteria for listing studies and other relevant information is provided in the member section of the portal.