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.
Fred Hutchinson Cancer Research Center, Seattle, Washington, United States
University of Mississippi Medical Center, Jackson, Mississippi, United States
CCOP - Virginia Mason Research Center, Seattle, Washington, United States
St. Louis University Health Sciences Center, Saint Louis, Missouri, United States
Memorial Sloan-Kettering Cancer Center, New York, New York, United States
University Hospitals of Leicester, Leicester, England, United Kingdom
Ninewells Hospital and Medical School, Dundee, Scotland, United Kingdom
Beatson Oncology Centre, Glasgow, Scotland, United Kingdom
Aberdeen Royal Infirmary, Aberdeen, Scotland, United Kingdom
Beatson Oncology Centre, Glasgow, Scotland, United Kingdom
Ayr Hospital, Ayr, United Kingdom
Tata Memorial Centre, Mumbai, India
Cancer Institute (W.I.A.), Madras, India
All-India Institute of Medical Sciences, New Delhi, India
Memorial Sloan-Kettering Cancer Center, New York, New York, United States
Klinikum der J.W. Goethe Universitaet, Frankfurt, Germany
Medizinische Hochschule Hannover, Hannover, Germany
Fred Hutchinson Cancer Research Center, Seattle, Washington, United States
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