Monoclonal antibody | |
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Type | Whole antibody |
Source | Human |
Target | hepatitis B surface antigen |
Clinical data | |
ATC code |
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Chemical and physical data | |
Formula | C6416H9924N1732O1982S44 |
Molar mass | 144446.75 g·mol−1 |
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Exbivirumab is a human monoclonal antibody [1] developed for the treatment of hepatitis B infections. [2]
Antiviral drugs are a class of medication used for treating viral infections. Most antivirals target specific viruses, while a broad-spectrum antiviral is effective against a wide range of viruses. Antiviral drugs are one class of antimicrobials, a larger group which also includes antibiotic, antifungal and antiparasitic drugs, or antiviral drugs based on monoclonal antibodies. Most antivirals are considered relatively harmless to the host, and therefore can be used to treat infections. They should be distinguished from virucides, which are not medication but deactivate or destroy virus particles, either inside or outside the body. Natural virucides are produced by some plants such as eucalyptus and Australian tea trees.
A monoclonal antibody is an antibody produced from a cell lineage made by cloning a unique white blood cell. All subsequent antibodies derived this way trace back to a unique parent cell.
Rituximab, sold under the brand name Rituxan among others, is a monoclonal antibody medication used to treat certain autoimmune diseases and types of cancer. It is used for non-Hodgkin lymphoma, chronic lymphocytic leukemia, rheumatoid arthritis, granulomatosis with polyangiitis, idiopathic thrombocytopenic purpura, pemphigus vulgaris, myasthenia gravis and Epstein–Barr virus-positive mucocutaneous ulcers. It is given by slow intravenous infusion. Biosimilars of Rituxan include Blitzima, Riabni, Ritemvia, Rituenza, Rixathon, Ruxience, and Truxima.
Cryoglobulinemia is a medical condition in which the blood contains large amounts of pathological cold sensitive antibodies called cryoglobulins – proteins that become insoluble at reduced temperatures. This should be contrasted with cold agglutinins, which cause agglutination of red blood cells.
Humanized antibodies are antibodies from non-human species whose protein sequences have been modified to increase their similarity to antibody variants produced naturally in humans. The process of "humanization" is usually applied to monoclonal antibodies developed for administration to humans. Humanization can be necessary when the process of developing a specific antibody involves generation in a non-human immune system. The protein sequences of antibodies produced in this way are partially distinct from homologous antibodies occurring naturally in humans, and are therefore potentially immunogenic when administered to human patients. The International Nonproprietary Names of humanized antibodies end in -zumab, as in omalizumab.
Entry inhibitors, also known as fusion inhibitors, are a class of antiviral drugs that prevent a virus from entering a cell, for example, by blocking a receptor. Entry inhibitors are used to treat conditions such as HIV and hepatitis D.
Elsilimomab is a mouse monoclonal antibody. B-E8 was developed by Diaclone, a French company which produces many mouse monoclonal antibodies.
Ocrelizumab, sold under the brand name Ocrevus, is a medication used for the treatment of multiple sclerosis (MS). It is a humanized anti-CD20 monoclonal antibody. It targets CD20 marker on B lymphocytes and is an immunosuppressive drug. Ocrelizumab binds to an epitope that overlaps with the epitope to which rituximab binds.
Libivirumab is a human monoclonal antibody directed against the hepatitis B virus.
Tuvirumab is a human monoclonal antibody for the treatment of patients with chronic hepatitis B. It has undergone Phase I clinical trials in 2001.
Ofatumumab is a fully human monoclonal antibody to CD20, which appears to provide rapid B-cell depletion. Under the brand name Kesimpta, it is approved for the treatment of multiple sclerosis in the United States as well as in the European Union and other regions. Under the brand name Arzerra, it is approved for the treatment of certain types of chronic lymphocytic leukemia (CLL) in the United States. It is sold by Novartis under license from Genmab.
Priliximab is a human-mouse chimeric anti-CD4 monoclonal antibody. It has been tested on patients with Crohn's disease and multiple sclerosis but has not yet received U.S. Food and Drug Administration licensing. The patent belongs to the biotechnology company Centocor.
Tanox was a biopharmaceutical company based in Houston, Texas. The company was founded by two biomedical research scientists, Nancy T. Chang and Tse Wen Chang in March 1986 with $250,000, which was a large part of their family savings at that time. Both Changs grew up and received college education in chemistry in National Tsing Hua University in Taiwan and obtained Ph.D. degrees from Harvard University. For postdoctoral training, Tse Wen shifted to immunology and did research with Herman N. Eisen at the Center for Cancer Research, M.I.T. The two Changs successively became research managers and worked with a range of monoclonal antibody projects in Centocor, Inc. based in Malvern, Pennsylvania, from 1981 to 1985. The Changs were recruited by Baylor College of Medicine toward the end of 1985 and offered faculty positions in the Division of Molecular Virology. Soon after their arrival, they were encouraged by a high-ranking Baylor official and local business leaders to start a biotech venture in Houston. This was in a period of time when the economy of Houston was in slump as the result of the collapse of the oil industry.
Hepatitis B is an infectious disease caused by the Hepatitis B virus (HBV) that affects the liver; it is a type of viral hepatitis. It can cause both acute and chronic infection.
Carlumab is a discontinued human recombinant monoclonal antibody that targets human CC chemokine ligand 2 (CCL2)/monocyte chemoattractant protein (MCP1). Carlumab was under development for use in the treatment of oncology and immune indications and was studied for application in systemic sclerosis, atherosclerosis, diabetic nephropathy, liver fibrosis and type 2 diabetes.
Namilumab is a human monoclonal antibody that targets granulocyte macrophage-colony stimulating factor (GM-CSF)/colony stimulating factor 2 (CSF2) and is currently being researched for application in rheumatoid arthritis (RA) and psoriatic arthritis. Clinical trials investigating the therapeutic utility of Namilumab have include phase I and phase II clinical trials to establish the safety, tolerability and preliminary therapeutic utility of the antibody in plaque psoriasis and rheumatoid arthritis.
Pateclizumab (MLTA3698A) is an immunomodulator. It binds to lymphotoxin alpha.
Enoticumab is a human monoclonal antibody that binds to DLL4. It acts as an immunomodulator.
Otilimab is a fully human antibody which has been developed by the biotechnology company MorphoSys. It can also be referred to as HuCAL antibody, HuCAL standing for Human Combinatorial Antibody Library and being a technology used to generate monoclonal antibodies. Otilimab is directed against the granulocyte-macrophage colony stimulating factor (GM-CSF), a monomeric glycoprotein functioning as a cytokine promoting both proliferation and activation of macrophages and neutrophils.
Lenvervimab is a monoclonal antibody that is being investigated for hepatitis B.