Sorrento Therapeutics has reported that its Covid-19 therapeutic antibody candidate, STI-1499, can completely block the viral infection in-vitro during preclinical studies.
The company intends to develop an antibody cocktail that would protect from Covid-19 and remain effective even if mutations make a single antibody less effective over time.
Sorrento has been diligently screening numerous antibodies in its G-MAB fully human antibody library and discovered hundreds of candidates that bind the S1 subunit of the SARS-CoV-2 Spike protein.
Of these antibodies, around 12 showed the ability to inhibit the interaction of the S1 protein with human angiotensin-converting enzyme 2 (ACE2) used for viral entrance into human cells.