R-3750 in Patients With Late-Stage Acute Respiratory Distress Syndrome (ARDS)

The goal of this clinical trial is to learn if R-3750 is safe in \[in patients with late-stage, non-resolving Acute Respiratory Distress Syndrome (ARDS) . The main question\[s\] it aims to answer are: 1. the favorable safety profile 2. clinical improvement that includes reduced ventilator dependence and improved lung function. Participants will be given oral capsules daily and/or enteral nasogastric or orogastric (NG/OG tube) if necessary.