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.
Children's National Medical Center, Washington, District of Columbia, United States
Memorial Sloan-Kettering Cancer Center, New York, New York, United States
Kaplan Cancer Center, New York, New York, United States
Providence Hospital - Southfield, Southfield, Michigan, United States
CCOP - Dayton, Kettering, Ohio, United States
Boston Medical Center, Boston, Massachusetts, United States
H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida, United States
Children's Hospital Los Angeles, Los Angeles, California, United States
Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania, United States
Ireland Cancer Center, Cleveland, Ohio, United States
Veterans Affairs Medical Center - Atlanta (Decatur), Decatur, Georgia, United States
Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Chicago, Illinois, United States
CCOP - Kalamazoo, Kalamazoo, Michigan, United States
Stanford Cancer Center, Stanford, California, United States
Yale Cancer Center, New Haven, Connecticut, United States
AFLAC Cancer Center and Blood Disorders Service of Children's Healthcare of Atlanta - Scottish Rite Campus, Atlanta, Georgia, United States
CCOP - Carle Cancer Center, Urbana, Illinois, United States
Siouxland Hematology-Oncology, Sioux City, Iowa, United States
CCOP - Kalamazoo, Kalamazoo, Michigan, United States
Derriford Hospital, Plymouth, England, United Kingdom
Southend General Hospital, Westcliff-On-Sea, England, United Kingdom
Royal Victoria Hospital, Belfast, Northern Ireland, United Kingdom
University of Minnesota Cancer Center, Minneapolis, Minnesota, United States
H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida, United States
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