Assembly Biosciences, Inc. is a biotechnology company, which engages in the development of products for infectious diseases, such as chronic hepatitis B virus and illnesses associated with a dysbiotic microbiome. The company is headquartered in South San Francisco, California and currently employs 73 full-time employees. The company went IPO on 2010-12-17. Its pipeline includes multiple clinical-stage investigational therapies, including two helicase-primase inhibitors (HPI) targeting recurrent genital herpes; an orally bioavailable hepatitis delta virus (HDV) entry inhibitor, and a potent next-generation capsid assembly modulator (CAM) designed to disrupt the replication cycle of hepatitis B virus (HBV) at several key points. Its pipeline also includes a novel, oral broad-spectrum non-nucleoside polymerase inhibitor (NNPI) targeting transplant-related herpesviruses, which is undergoing studies to enable a regulatory filing, and it also has additional research programs against multiple antiviral targets. The company is advancing two investigational long-acting HPI candidates, ABI-5366 (5366) and (2) ABI-1179 (1179).