Methotrexate is a folate derivative that inhibits several enzymes responsible for nucleotide synthesis. This inhibition leads to suppression of inflammation as well as prevention of cell division. Because of these effects, methotrexate is often used to treat inflammation caused by arthritis or to control cell division in neoplastic diseases such as breast cancer and non-Hodgkin's lymphoma.
Due to the toxic effects of methotrexate, it is indicated for treatment of some forms of arthritis and severe psoriasis only if first line treatment has failed or patients are intolerant of those treatments.
Methotrexate was granted FDA approval on 7 December 1953.
Methotrexate oral solution is indicated for pediatric acute lymphoblastic leukemia and pediatric polyarticular juvenile idiopathic arthritis. Methotrexate injections for subcutaneous use are indicated for severe active rheumatoid arthritis, polyarticular juvenile idiopathic arthritis and severe, recalcitrant, disabling psoriasis.
Other formulations are indicated to treat gestational choriocarcinoma, chorioadenoma destruens, hydatiform mole, breast cancer, epidermoid cancer of the head and neck, advanced mycosis fungoides, lung cancer, and advanced non-Hodgkin's lymphoma. It is also used in the maintenance of acute lymphocytic leukemia. Methotrexate is also given before treatment with leucovorin to prolong relapse-free survival following surgical removal of a tumour in non-metastatic osteosarcoma.
UCSF Cancer Center and Cancer Research Institute, San Francisco, California, United States
Marlene & Stewart Greenebaum Cancer Center, University of Maryland, Baltimore, Maryland, United States
St. Joseph's Hospital and Medical Center, Paterson, New Jersey, United States
U.Z. Gasthuisberg, Leuven, Belgium
Institut Gustave Roussy, Villejuif, France
Rotterdam Cancer Institute, Rotterdam, Netherlands
Derbyshire Royal Infirmary, Derby, England, United Kingdom
Beatson Oncology Centre, Glasgow, Scotland, United Kingdom
University of Washington Medical Center, Seattle, Washington, United States
Fred Hutchinson Cancer Research Center, Seattle, Washington, United States
Herbert Irving Comprehensive Cancer Center, New York, New York, United States
University of Illinois at Chicago Health Sciences Center, Chicago, Illinois, United States
Veterans Affairs Medical Center - Chicago (Westside Hospital), Chicago, Illinois, United States
University of Chicago Cancer Research Center, Chicago, Illinois, United States
Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, California, United States
Aberdeen Royal Infirmary, Aberdeen, Scotland, United Kingdom
Royal Alexandra Hospital, Paisley, Scotland, United Kingdom
Western General Hospital, Edinburgh, Scotland, United Kingdom
Marlene & Stewart Greenebaum Cancer Center, University of Maryland, Baltimore, Maryland, United States
University of Massachusetts Memorial Medical Center, Worcester, Massachusetts, United States
Ellis Fischel Cancer Center - Columbia, Columbia, Missouri, United States
Fred Hutchinson Cancer Research Center, Seattle, Washington, United States
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