The weight of the evidence suggests that methotrexate reduces the overall risk of cardiovascular events (CVEs)—including myocardial infarction, congestive heart failure, stroke, and or major adverse cardiac events—in RA patients (RR 0.72, 95% CI 0.57-0.91)1.
Aside from its effect on controlling systemic inflammation, methotrexate has also been shown to increase HDL and reduce total cholesterol/HDL ratio in patients with RA compared with treated non-RA controls2. In vitro, methotrexate appears to activate mechanisms involved in reverse transport of cholesterol out of the cell to the circulation for eventual excretion3. Not surprisingly then, methotrexate has also been reported to decrease atherosclerotic plaque burden measured by carotid artery intima-media thickness2.
We tend to think of RA as a disease that primarily causes arthritis but its effects may extend far beyond the joints. Patients with RA have an increased risk of cardiovascular deaths compared to the general population4, likely due to a variety of factors, including accelerated atherosclerosis secondary to chronic inflammation. At baseline, RA patients also have an unfavorable lipid profile with decreased HDL and higher total cholesterol/HDL ratio.
Fun Final Fact: Did you know that methotrexate is on the WHO Model List of Essential Medicines (April 2015) not only as a cancer drug but for treatment of RA as well5?
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- Roubille C, Richer V, Starnino T, McCourt C, McFarlane A, Fleming P, Siu S, Kraft J, Lynde C, Pope J, Gulliver W, Keeling S, Dutz J, Bessette L, Bissonnette R, Haraoui B. The effects of tumour necrosis factor inhibitors, methotrexate, non-steroidal anti-inflammatory drugs and corticosteroids on cardiovascular events in rheumatoid arthritis, psoriasis and psoriatic arthritis: a systematic review and meta-analysis. Ann Rheum Dis. 2015;74:480-9. https://www.ncbi.nlm.nih.gov/pubmed/25561362
- Georgiadis AN, Voulgari PV, Argyropoulou MI, Alamanos Y, Elisaf M, Tselepis AD, Drosos AA. Early treatment reduces the cardiovascular risk factors in newly diagnosed rheumatoid arthritis patients. Semin Arthritis Rheum 2008;38:13-9. https://www.ncbi.nlm.nih.gov/pubmed/18191989
- Reiss AB, Carsons SE, Anwar K, Rao S, Edelman SD, Zhang H, Fernandez P, Cronstein BN, Chan ES. Atheroprotective effects of methotrexate on reverse cholesterol transport proteins and foam cell transformation in human THP-1 monocyte/macrophages. Arthritis Rheum 2008;58:3675-83. https://www.ncbi.nlm.nih.gov/pubmed/19035488
- Aviña-Zubieta JA, Choi HK, Sadatsafavi M, Etminan M, Esdaile JM, Lacaille D. Risk of cardiovascular mortality in patients with rheumatoid arthritis: a meta-analysis of observational studies. Arthritis Rheum 2008; 59:1690-7. https://www.ncbi.nlm.nih.gov/pubmed/19035419
- WHO Model List of Essential Medicines (April 2015). http://www.who.int/medicines/publications/essentialmedicines/en/
Contributed by Brian Li, Medical Student, Harvard Medical School
One thought on “Does methotrexate reduce the risk of cardiovascular events in patients with rheumatoid arthritis?”
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