Methotrexate is an antimetabolite and antifolate agent with antineoplastic and immunosuppressant activities. Methotrexate binds to and inhibits the enzyme dihydrofolate reductase, resulting in inhibition of purine nucleotide and thymidylate synthesis and, subsequently, inhibition of DNA and RNA syntheses. Methotrexate also exhibits potent immunosuppressant activity although the mechanism(s) of actions is unclear.
Methotrexate is approved by the Food and Drug Administration (FDA) to be used by itself to treat the following types of gestational trophoblastic tumors, Chorioadenoma destruens, Choriocarcinoma, Hydatidiform mole. Methotrexate is also approved to be used alone or with other drugs to treat acute lymphoblastic leukemia (ALL) that has spread to the central nervous system (CNS) or to keep it from spreading there, and to treat the following, breast cancer, certain types of head and neck cancer, lung cancer, advanced non-Hodgkin lymphoma (NHL), advanced mycosis fungoides (a type of cutaneous T-cell lymphoma), osteosarcoma that has not spread to other parts of the body, following surgery to remove the primary tumor. Methotrexate is also approved to treat the following non-cancer conditions, rheumatoid arthritis, severe psoriasis.
The results of a study presented today at the Annual European Congress of Rheumatology report that obesity in women and current smoking in men were the strongest predictors of not achieving remission in early rheumatoid arthritis within a year.
An international team led by Johns Hopkins Medicine researchers has conducted what is believed to be the largest detailed published study of people with a poorly understood skin condition known as prurigo nodularis.
The results of a 23-year, follow-up study presented today at the Annual European Congress of Rheumatology suggest early, intensive treatment of rheumatoid arthritis has long-term benefits including the normalisation of mortality to levels consistent with the general population.
In a federally funded, randomized phase III clinical trial performed by the Children's Oncology Group (COG), 90% of children and young adults with T-cell acute lymphoblastic leukemia (T-ALL) or T-cell lymphoblastic lymphoma (T-LL) were alive four years after starting treatment regimens on this trial, and 84% were cancer free.
Leukemia itself, not just side effects related to its treatment, may increase the risk for long-term problems with attention, organization and related neurocognitive skills in survivors of the most common childhood cancer, according to research from St. Jude Children's Research Hospital. The study appears today in the journal JAMA Oncology.
Results from a phase 2 clinical trial, presented by Seattle Children's Research Institute at the 59th American Society of Hematology Annual Meeting, show that the drug Abatacept (Orencia) nearly eliminated life-threatening severe acute graft-versus-host disease (GvHD) in patients receiving hematopoietic stem cell transplants.
The memory and thinking problems experienced by cancer survivors, known as "chemo brain" or "chemo fog," are not just the result of chemotherapy treatment, they may start as tumors form and develop, suggests a Baycrest-led study.
In the quest for a new and more effective treatment for rheumatoid arthritis, researchers from the Keck School of Medicine of USC looked to a primate that mostly roams the land in Asia, the Middle East and Africa.
A new analysis seeks to answer the question of which patients are likely to gain the greatest cardiovascular benefit when treated with the anti-inflammatory agent canakinumab.
Opioids and selective serotonin reuptake inhibitors, a widely used group of antidepressants, are both associated with higher risk of osteoporotic fractures for patients with rheumatoid arthritis, according to new research findings presented this week at the 2017 ACR/ARHP Annual Meeting in San Diego.
Excess weight is linked to a higher degree of synovitis in people with rheumatoid arthritis and can affect their treatment response, according to new research findings presented this week at the 2017 ACR/ARHP Annual Meeting in San Diego.
When most people think of arthritis, they picture the knobby knuckles, inflamed joints or aching back of an older person. But more than 300,000 children in the U.S. suffer from chronic juvenile idiopathic arthritis (JIA), which has more to do with joint inflammation than wear and tear on cartilage and bone.
In a new study involving laboratory mice, researchers have found that solenopsin and similar compounds could be beneficial for psoriasis.
In most clinical trials for cancer therapy, investigators test treatments in patients with advanced disease. But a recent cardiovascular secondary prevention study has given researchers a unique opportunity: to explore the effectiveness of giving a drug to patients before cancer emerges.
New research indicates that the live varicella-zoster vaccine--which is given to protect against shingles--elicits robust immune responses in patients when administered several weeks prior to the start of treatment with the arthritis drug tofacitinib.
Blood cancer sufferers could be treated with a simple arthritis drug, scientists at the University of Sheffield have discovered.
Existing medicines could offer a new way to treat inflammatory skin conditions, researchers at Melbourne's Walter and Eliza Hall Institute and the Royal Melbourne Hospital have revealed.
Wanting a tan or simply enjoying the outdoors during the summer can expose skin to the effects of ultraviolet rays- a problem complicated for people taking certain medications, warns a Harris Health System expert.
The immunotherapy nivolumab is kinder than chemotherapy for people with advanced head and neck cancer - easing many of the negative effects of the disease on patients' quality of life.
Patients suffering from rheumatoid arthritis are treated for around six months with the standard anti-rheumatic agent methotrexate, to which many patients respond very well.