Dimeric fusion protein consisting of the extracellular ligand-binding portion of the human 75 kilodalton (p75) tumor necrosis factor receptor (TNFR) linked to the Fc portion of human IgG1. The Fc component of etanercept contains the CH2 domain, the CH3 domain and hinge region, but not the CH1 domain of IgG1. Etanercept is produced by recombinant DNA technology in a Chinese hamster ovary (CHO) mammalian cell expression system. It consists of 934 amino acids. It is used to treat or manage a variety of inflammatory conditions including rheumatoid arthritis (RA), ankylosing spondylitis (AS), and juvenile idiopathic poly-articular arthritis (JIA).
Etanercept is indicated for the treatment of moderately to severely active rheumatoid arthritis in adults and in chronic moderate to severe plaque psoriasis in patients 4 years of age and older. It is also used to manage signs and symptoms of polyarticular idiopathic arthritis and Juvenile Psoriatic Arthritis in those aged 2 years and older. Etanercept is also used to manage the symptoms of psoriatic arthritis and ankylosing spondylitis.
University of Alabama at Birmingham, Birmingham, Alabama, United States
University of California at San Francisco, San Francisco, California, United States
Feinstein Institute for Medical Research NS-L1J Health System, Manhasset, New York, United States
Pfizer Investigational Site, Toyama, Japan
Prince of Wales Hospital, Hong Kong, China
University of Florida College of Medicine (Shands), Gainesville, Florida, United States
Johns Hopkins University, Baltimore, Maryland, United States
Memorial Sloan Kettering Cancer Center, New York, New York, United States
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