Madrigal Pharmaceuticals, Inc., a clinical-stage biopharmaceutical company, focuses on the development of therapeutics for the treatment of non-alcoholic steatohepatitis (NASH) in the United States. Its lead product candidate is resmetirom, a liver-directed thyroid hormone receptor beta agonist, which is in Phase 3 clinical trials for treating NASH. The company is headquartered in West Conshohocken, Pennsylvania.

Arbutus Biopharma Corporation, a biopharmaceutical company, develops novel therapeutics for chronic Hepatitis B virus (HBV) infection in the United States. Its HBV product pipeline consists of imdusiran (AB-729), a proprietary subcutaneously-delivered RNAi therapeutic product candidate that suppresses all HBV antigens, including HBsAg expression. The company's research and development programs include AB-101, an oral PD-L1 inhibitor to reawaken patients' HBV-specific immune system; and small molecule antiviral medicines to treat coronaviruses, including COVID-19. It has licensing agreements with Gritstone Oncology, Inc; Alnylam Pharmaceuticals, Inc.; Qilu Pharmaceuticals Co, Ltd; Assembly Biosciences, Inc.; Acuitas Therapeutics, Inc.; and Antios Therapeutics, Inc. Arbutus Biopharma Corporation also has a clinical collaboration agreement with Barinthus Biotherapeutics plc to evaluate VTP-300. The company was formerly known as Tekmira Pharmaceuticals Corporation and changed its name to Arbutus Biopharma Corporation in July 2015. Arbutus Biopharma Corporation is headquartered in Warminster, Pennsylvania.

Altimmune, Inc., a clinical stage biopharmaceutical company, focuses on developing treatments for obesity and liver diseases. The company's lead product candidate, pemvidutide, a GLP-1/glucagon dual receptor agonist that is in Phase 2 trial for the treatment of obesity and metabolic dysfunction-associated steatohepatitis. It is also developing HepTcell, an immunotherapeutic product candidate, which is in Phase 2 clinical trial for patients chronically infected with the hepatitis B virus. The company was formerly known as Vaxin Inc. and changed its name to Altimmune, Inc. in September 2015. Altimmune, Inc. was founded in 1997 is headquartered in Gaithersburg, Maryland.

Enanta Pharmaceuticals, Inc., a biotechnology company, discovers and develops small molecule drugs for the treatment of viral infections and liver diseases. Its product pipeline comprises EDP-514, which is in phase 1b clinical development for the treatment of chronic infection with hepatitis B virus or HBV; EDP-938 and EDP-323, which is in phase II clinical development for the treatment of respiratory syncytial virus; EDP-235, which is in phase II clinical development for the treatment of human coronaviruses; and Glecaprevir, which is in the market for the treatment of chronic infection with hepatitis C virus or HCV. The company has a collaborative development and license agreement with Abbott Laboratories to develop, manufacture, and commercialize HCV NS3 and NS3/4A protease inhibitor compounds, including paritaprevir and glecaprevir. Enanta Pharmaceuticals, Inc. was incorporated in 1995 and is headquartered in Watertown, Massachusetts.

Galectin Therapeutics Inc., a clinical stage biopharmaceutical company, engages in the research and development of therapies for fibrotic, cancer, and other diseases. Its lead product candidate is belapectin (GR-MD-02) galectin-3 inhibitor, that is in Phase 2b/3 clinical trial, to prevent esophageal varices in patient with non-alcoholic steatohepatitis (NASH) cirrhosis; and Phase 2 clinical trial for the treatment of liver fibrosis, as well as severe skin disease, and melanoma and head and neck squamous cell carcinoma. The company, through its Galectin Sciences, LLC, which is a collaborative joint venture co-owned by SBH Sciences, Inc., to research and develop small organic molecule inhibitors of galectin-3 for oral administration. The company was formerly known as Pro-Pharmaceuticals, Inc. and changed its name to Galectin Therapeutics, Inc. in May 2011. Galectin Therapeutics Inc. was founded in 2000 and is based in Norcross, Georgia.

Aligos Therapeutics, Inc., a clinical-stage biopharmaceutical company, focuses on the development of novel therapeutics to address unmet medical needs in viral and liver diseases. Its drug candidate, ALG-055009, a small molecule THR-ß agonist that is in the Phase 2a clinical trial for the treatment of non-alcoholic steatohepatitis (NASH). The company also develops ALG-000184, a capsid assembly modulator, which is completed Phase 1b clinical trial to treat chronic hepatitis B (CHB); and ALG-125755, a siRNA drug candidate, which is in Phase I clinical trial for the treatment of CHB. In addition, it develops ALG-097558, which is in Phase 2 clinical trial for the treatment of coronavirus. The company has entered into license and research collaboration agreement with Merck to discover, research, optimize, and develop oligonucleotides directed against a NASH; license agreement with Emory University to provide hepatitis B virus capsid assembly modulator technology; license agreement with Luxna Biotech Co., Ltd. to develop and commercialize products containing oligonucleotides targeting hepatitis B virus genome; and research, licensing, and commercialization agreement with Katholieke Universiteit Leuven to develop coronavirus protease inhibitors. It also has a clinical collaboration with Xiamen Amoytop Biotech Co., Ltd. Aligos Therapeutics, Inc. was incorporated in 2018 and is headquartered in South San Francisco, California.

Cocrystal Pharma, Inc., a biotechnology company, focuses on the discovery and development of antiviral therapeutic treatments for serious and/or chronic viral diseases. It employs structure-based technologies to create antiviral drugs primarily to treat hepatitis C virus (HCV), influenza virus, coronavirus, norovirus, and respiratory virus infections. The company develops CC-31244, a HCV non-nucleoside polymerase inhibitor that has completed Phase II a clinical trial to treat HCV infection; and CC-42344, a PB2 inhibitor that has completed Phase I clinical trial for treating influenza infection. It is also involved in identifying and developing non-nucleoside polymerase inhibitors for norovirus infections. Cocrystal Pharma, Inc. has a license and research collaboration agreement with Merck Sharp & Dohme Corp. to discover and develop proprietary influenza A/B antiviral agents; and a license agreement with Kansas State University Research Foundation to develop antiviral compounds for the treatment of norovirus and coronavirus infections. The company is headquartered in Bothell, Washington.

BioVie Inc., a clinical-stage biopharmaceutical company, develops drug therapies to treat neurological and neurodegenerative disorders, and advanced liver disease. The company develops BIV201 for the treatment of ascites due to chronic liver cirrhosis. It also develops NE3107 that is in Phase III clinical trial for the treatment of patients with mild to moderate Alzheimer's disease; and in Phase 2 clinical trial to treat Parkinson's disease, as well as for the long COVID program. The company was formerly known as NanoAntibiotics, Inc. and changed its name to BioVie Inc. in July 2016. BioVie Inc. was incorporated in 2013 and is headquartered in Carson City, Nevada.