lenvervimab lenvervimab lenvervimab (inn; development code gc1102) is a monoclonal antibody that is being investigated for hepatitis b. lenvervimabmonoclonal antibodytype?sourcehumanizedtargethepatitis b virus surface antigenclinical dataother namesgc1102atc codenoneidentifierscas number2055006-79-4uniifx9x4l2a2l this drug is being developed by gc pharma. as of 2018, lenvervimab is undergoing phase ii/iii trials.