Regeneron's Lower Dose Of COVID-19 Antibody Cocktail Cuts Hospitalization, Death By 70%

Regeneron Pharmaceuticals Inc REGN has announced that even a lower-than-authorized dose of its combination of monoclonal antibody (mAbs) reduced hospitalization or death by 70% in non-hospitalized COVID-19 patients.

  • The company seeks emergency use approval for the lower dose.
  • The placebo-controlled trial of more than 4,500 people showed casirivimab, and imdevimab reduced the risk of hospitalization or death by 70% for the 1,200 mg IV dose and 71% for the authorized 2,400 mg IV version when compared to placebo.
  • The antibody cocktail also met all key secondary endpoints in the Phase 3 trial, including reducing symptom duration to 10 days from 14.
  • A companion Phase 2 trial showed that even the lowest doses tested as low as 300 mg IV had significant viral load reductions over the first 7 study days, comparable to the 2,400 mg and 1,200 mg IV doses.
  • Roche Holdings AG RHHBY is responsible for sales outside the U.S.
  • Regeneron expects to record approximately $260 million in REGEN-COV U.S. net product sales to the U.S. government in the first quarter of 2021.
  • According to recently updated U.S. fact sheets for all authorized monoclonal antibody treatments, indicated that REGEN-COV was able to retain potency against key emerging variants.
  • Price Action: REGN shares closed 2% higher at $483.2 on Monday.
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Posted In: BiotechNewsHealth CareFDAGeneralCOVID-19 Coronavirus
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