Regeneron COVID-19 drug trial halted in sickest patients – Fox Business

Regeneron Pharmaceuticals Inc. suspended testing of its Covid-19 antibody drug in the sickest hospitalized patients because of a safety concern, the latest setback for antibody-drug trials in patients with the most advanced disease.

Regeneron said Friday it is pausing enrollment of hospitalized Covid-19 patients receiving mechanical ventilation or high-flow oxygen, after an independent monitoring committee observed “a potential safety signal and an unfavorable risk/benefit profile at this time.”

The…