AbbVie is a research-based biopharmaceutical company. The company's products are focused on treating conditions such as chronic autoimmune diseases in rheumatology, gastroenterology and dermatology; oncology, including blood cancers; virology, including hepatitis C virus and human immunodeficiency virus; neurological disorders, such as Parkinson's disease; metabolic diseases, including thyroid disease and complications associated with cystic fibrosis; pain associated with endometriosis; as well as other serious health conditions. The company also has medicines in clinical development across immunology, oncology and neuroscience, with additional targeted investment in cystic fibrosis and women's health.

AstraZeneca is a holding company. Through its subsidiaries, Co. operates as a biopharmaceutical company engaged in discovering, developing, manufacturing and commercializing its pipeline of small molecule and biologic prescription medicines, including targeted business development through collaboration, in-licensing and acquisitions. Co. is focused on three main therapy areas: Oncology, Cardiovascular and Metabolic Diseases, and Respiratory. Co. is also selectively active in autoimmunity, infection and neuroscience. In addition, Co. works across small molecules, oligonucleotides and other drug platforms, as well as biologic medicines.

Bristol-Myers Squibb is engaged in the discovery, development, licensing, manufacturing, marketing, distribution and sale of biopharmaceutical products. The company's products are sold worldwide, primarily to wholesalers, specialty distributors, retail pharmacies, hospitals, government entities and the medical profession. The company manufactures products in the United States and Puerto Rico and has manufacturing operations in two foreign countries. The company has products in the following therapeutic classes: hematology, oncology, cardiovascular and immunology. The company's pharmaceutical products include chemically-synthesized or small molecule drugs and products produced from biological processes, called biologics.

Enanta Pharmaceuticals is a biotechnology company that creates small molecule drugs primarily for the treatment of viral infections and liver diseases. The company's wholly owned research and development programs are in virology, namely respiratory syncytial virus and hepatitis B virus, and in liver disease (non-virology), namely non-alcoholic steatohepatitis and primary biliary cholangitis. Through its Collaborative Development and License Agreement with AbbVie Inc (AbbVie), the company has discovered and out-licensed to AbbVie two protease inhibitor compounds that have been clinically tested, manufactured, and commercialized by AbbVie for the treatment of hepatitis C virus.

Gilead Sciences is a research-based biopharmaceutical company that discovers, develops and commercializes medicines. The company's primary areas of focus include viral diseases, inflammatory and fibrotic diseases and oncology. The company's products include: Biktarvy for the treatment of HIV-1 infection in certain patients; Vosevi?, a single tablet regimen of sofosbuvir, velpatasvir and voxilaprevir for the re-treatment of chronic hepatitis C virus infection in adults; Vemlidy? for the treatment of chronic hepatitis B virus infection in adults with compensated liver disease; and Yescarta (axicabtagene ciloleucel) for the treatment of adult patients with relapsed or refractory large B-cell lymphoma.

Johnson & Johnson is a holding company engaged in the research and development, manufacture and sale of a range of products in the health care field. The company has three business segments: Consumer, which includes a range of products focused on personal healthcare used in the beauty, over-the-counter pharmaceutical, baby care, oral care, women's health and wound care markets; Pharmaceutical, which is focused on six therapeutic areas: immunology, infectious diseases, neuroscience, oncology, cardiovascular and metabolism and pulmonary hypertension; and Medical Devices, which includes products used in the orthopaedic, surgery, interventional solutions, and eye health fields.

Medivir is a research-based pharmaceutical company. Co.'s research and development portfolio comprises five pharmaceutical projects, two of which are being conducted in collaboration with partners. Three of the projects focus on the development of antiviral pharmaceuticals, of which two are in the field of hepatitis C. Co.'s product portfolio comprises 16 prescription pharmaceuticals in a variety of different therapeutic areas, including Citodon, Laxabon, Lithionit, Mollipect and Paraflex. In addition, Simeprevir has been approved for the treatment of genotype 1 chronic hepatitis C virus in Japan, the U.S. and Canada.

Merck & Co. is a global health care company that delivers health solutions through its prescription medicines, vaccines, biologic therapies and animal health products. The company's segments are: Pharmaceutical, which includes human health pharmaceutical products that consist of therapeutic and preventive agents for the treatment of human disorders, and human health vaccine products that consist of preventive pediatric, adolescent and adult vaccines; and Animal Health, which discovers, develops, manufactures and markets veterinary pharmaceuticals, vaccines and health management solutions and services, as well as a suite of digitally connected identification, traceability and monitoring products.

Pfizer is a research-based biopharmaceutical company. The company is engaged in discovering, developing, manufacturing and distributing of healthcare products, including medicines and vaccines. The company manages its commercial operations through three businesses: Pfizer Biopharmaceuticals Group, which includes Oncology, Inflammation and Immunology, Rare Disease, Hospital, Vaccines and Internal Medicine business units, as well as a hospital business unit; Upjohn, which includes the company's solid oral dose brands such as Lyrica, Lipitor, Norvasc, Celebrex, Viagra, and certain generic medicines; and Consumer Healthcare, which is an over-the-counter medicines business.