
ASMB
Assembly Biosciences is a clinical-stage biotechnology company developing antivirals targeting serious viral diseases, with a portfolio including two long-acting helicase-primase inhibitors ABI-1179 and ABI-5366 for recurrent genital herpes (which Gilead licensed in December 2025), the hepatitis delta virus entry inhibitor ABI-6250 advancing toward Phase 2, the hepatitis B virus capsid assembly modulator ABI-4334 in partnering discussions, and the oral broad-spectrum non-nucleoside polymerase inhibitor ABI-7272 for transplant-associated herpesviruses in regulatory filing-enabling studies. All lead programs have reported positive Phase 1 clinical data in 2025.