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.
Aalborg Universitetshospital Nord, Reumatologisk Afdeling, Alborg, Denmark
Gentofte Hospital, Medicinsk Afd. C, Klinik for Gigt- og Rygsygdomme, Hellerup, Denmark
Glostrup Hospital, Reumatologisk Afdeling, Ambulatoriet, Glostrup, Denmark
Aberdeen Royal Infirmary, Aberdeen, United Kingdom
Royal Sussex County Hospital; Clinical Investigation Research Unit, Brighton, United Kingdom
University Hospital of Wales; Dept of Rhematology, Cardiff, United Kingdom
UCSD, Division of Blood and Marrow Transplantation, Moores Cancer Center, La Jolla, California, United States
Hematological Malignancies/Stem Cell Transplantation Unit, David Geffen School of Medicine at UCLA, Los Angeles, California, United States
University of California Davis Comprehensive Cancer Center, Sacramento, California, United States
Head Dermatology Department, Rouen, Haute Normandie, France
CHU de Rouen - Hôpitaux de Rouen, Rouen, Seine Maritime, France
Hubei provincial hospital of tcm, Wuhan, Hubei, China
Hospital of Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, China
First Teaching hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, Tianjin, China
University College Hospital, London, United Kingdom
Hospital La Fe, Valencia, Spain
Arkansas Children's Hospital, Little Rock, Arkansas, United States
Connecticut Children's Medical Center, Hartford, Connecticut, United States
UCSF Benioff Children's Hospital Oakland, Oakland, California, United States
Banner North Colorado Medical Center, Greeley, Colorado, United States
Good Samaritan Hospital - Cancer Centers of Colorado, Lafayette, Colorado, United States
Banner McKee Medical Center, Loveland, Colorado, United States
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