Ionis partner GSK announces bepirovirsen achieves unprecedented functional cure rates with potential to redefine treatment for chronic hepatitis B

CARLSBAD, Calif.--(BUSINESS WIRE)--Ionis Pharmaceuticals, Inc. (Nasdaq: IONS) partner GSK today announced positive pivotal data for bepirovirsen, an investigational antisense oligonucleotide (ASO) for the treatment of chronic hepatitis B (CHB). Results from the two Phase 3 trials, B-Well 1 and B-Well 2, were simultaneously published in the New England Journal of Medicine and presented at the European Association for the Study of the Liver (EASL) congress. GSK licensed bepirovirsen from Ionis an.