July 20 (Reuters) - Vir Biotechnology's (VIR.O) shares plunged 45% to a more than three-year low on Thursday after the company's experimental antibody therapy to prevent a type of flu failed to meet its goals in a mid-stage trial.
The biotechnology firm, which came into prominence through its COVID-19 antibody therapy sotrovimab developed in partnership with GSK plc (GSK.L), lost over $1 billion in market capitalization in early trade hit by the therapy's failure.
The company said it will conduct further analyses on the trial data to "better understand these outcomes", but TD Cowen analyst Phil Nadeau does not expect the therapy to undergo further development.
The company is developing antibody therapies against hepatitis B and D, for which data is expected later this year, and also has development programs for COVID-19, HIV and influenza.
Reporting by Leroy Leo in Bengaluru; Editing by Shailesh KuberOur Standards: The Thomson Reuters Trust Principles.
Persons:
Vir Biotechnology's, sotrovimab, Cowen, Phil Nadeau, Nadeau, Leroy Leo, Shailesh
Organizations:
GSK plc, COVID, Alnylam Pharmaceuticals, Vertex Pharmaceuticals, Thomson
Locations:
Bengaluru