DUBLIN – Sanofi SA and Regeneron Pharmaceuticals Inc. are terminating all further development in COVID-19 of their interleukin-6 receptor inhibitor, Kevzara, following the antibody’s failure to meet the primary endpoint, as well as a key survival endpoint.
Preliminary data from the first part of a phase II/III trial testing the interleukin-6 (IL-6) receptor antibody Kevzara (sarilumab, Regeneron Pharmaceuticals Inc. and Sanofi SA) in patients with severe or critical respiratory illness caused by COVID-19 found that, relative to a placebo, the medicine "had no notable benefit on clinical outcomes" among that combined group.