Allogeneic Wharton's jelly-MSCs (WJ-MSC) will be provided by NextCell Pharma under the commercial name of ProTrans®. ProTrans® will be administered at a fixed dose of 100 million cells per patient in a single infusion at bedside.~Placebo: Sodium chloride buffer supplemented with 5% HSA and 10% DMSO same volume and mode of administration as treatment group (NextCell Pharma).
This is a randomized phase II placebo controlled clinical trial. Active arm: Allogeneic Wharton's jelly derived MSCs (WJ-MSCs). Both groups will receive standard of care treatment for COVID (e.g. dexamethasone)