Cited by 1,317Atherosclerosis and Cardiovascular DiseasesLipoproteins and Cardiovascular HealthAntiplatelet Therapy and Cardiovascular Diseases

Low-Dose Methotrexate for the Prevention of Atherosclerotic Events

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Ridker, Paul M, Everett, Brendan M., Pradhan, Aruna, MacFadyen, Jean G., Solomon, Daniel H., Zaharris, Elaine, Mam, Virak, Hasan, Ahmed +18 more·2019·New England Journal of Medicine

Abstract

BACKGROUND: Inflammation is causally related to atherothrombosis. Treatment with canakinumab, a monoclonal antibody that inhibits inflammation by neutralizing interleukin-1β, resulted in a lower rate of cardiovascular events than placebo in a previous randomized trial. We sought to determine whether an alternative approach to inflammation inhibition with low-dose methotrexate might provide similar benefit. METHODS: We conducted a randomized, double-blind trial of low-dose methotrexate (at a target dose of 15 to 20 mg weekly) or matching placebo in 4786 patients with previous myocardial infarction or multivessel coronary disease who additionally had either type 2 diabetes or the metabolic syndrome. All participants received 1 mg of folate daily. The primary end point at the onset of the trial was a composite of nonfatal myocardial infarction, nonfatal stroke, or cardiovascular death. Near the conclusion of the trial, but before unblinding, hospitalization for unstable angina that led to urgent revascularization was added to the primary end point. RESULTS: The trial was stopped after a median follow-up of 2.3 years. Methotrexate did not result in lower interleukin-1β, interleukin-6, or C-reactive protein levels than placebo. The final primary end point occurred in 201 patients in the methotrexate group and in 207 in the placebo group (incidence rate, 4.13 vs. 4.31 per 100 person-years; hazard ratio, 0.96; 95% confidence interval [CI], 0.79 to 1.16). The original primary end point occurred in 170 patients in the methotrexate group and in 167 in the placebo group (incidence rate, 3.46 vs. 3.43 per 100 person-years; hazard ratio, 1.01; 95% CI, 0.82 to 1.25). Methotrexate was associated with elevations in liver-enzyme levels, reductions in leukocyte counts and hematocrit levels, and a higher incidence of non-basal-cell skin cancers than placebo. CONCLUSIONS: Among patients with stable atherosclerosis, low-dose methotrexate did not reduce levels of interleukin-1β, interleukin-6, or C-reactive protein and did not result in fewer cardiovascular events than placebo. (Funded by the National Heart, Lung, and Blood Institute; CIRT ClinicalTrials.gov number, NCT01594333.).

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Authors
Ridker, P. M., Everett, B. M., Pradhan, A., MacFadyen, J. G., Solomon, D. H., Zaharris, E., Mam, V., Hasan, A., Rosenberg, Y., Iturriaga, E., Gupta, M., Tsigoulis, M., Verma, S., Clearfield, M., Libby, P., Goldhaber, S. Z., Seagle, R., Ofori, C., Saklayen, M., Butman, S., Singh, N., Le May, M., Bertrand, O., Johnston, J., Paynter, N. P., & Glynn, R. J.
Affiliations
  • Brigham and Women's Hospital (US)
  • From the Center for Cardiovascular Disease Prevention, Division of Preventive Medicine (P.M.R., B.M.E., A.P., J.G.M., E.Z., V.M., N.P.P., R.J.G.), and the Divisions of Cardiovascular Medicine (P.M.R., B.M.E., P.L., S.Z.G.) and Rheumatology (D.H.S.), Brigham and Women’s Hospital, Boston; the National Heart, Lung, and Blood Institute, Bethesda, MD (A.H., Y.R., E.I.); McMaster University, Hamilton (M.G.), the Canadian Collaborative Research Network, Brampton (M.T.), St. Michael’s Hospital, Toronto (S.V...
Venue
New England Journal of Medicine
Published
2019-02-21
Volume
380
Issue
8
Pages
752-762
ISSN
  • 0028-4793 (ISSN-L)
  • 1533-4406
OpenAlex
W2899885364
Cited by
1,317
References
36
Citations by year
2026: 113 · 2025: 141 · 2024: 141 · 2023: 153 · 2022: 171 · 2021: 197 · 2020: 231 · 2019: 160 · 2018: 9
FWCI
64.44
Type
journal article
Language
en
Open access
Locations
  • New England Journal of Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Touro Scholar (Touro College) (submittedVersion)
Funders
National Heart, Lung, and Blood Institute (UO1HL101422; UO1HL101389)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Atherosclerosis and Cardiovascular Diseases
  • Health Sciences › Medicine › Surgery › Lipoproteins and Cardiovascular Health
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Antiplatelet Therapy and Cardiovascular Diseases
Keywords
methotrexate, low-dose methotrexate, atherosclerosis, cardiovascular events, inflammation, IL-1β, interleukin-6, C-reactive protein, type 2 diabetes, metabolic syndrome, myocardial infarction, stroke, cardiovascular mortality, unstable angina, folic acid, liver enzymes, skin cancer, drug safety, secondary prevention, stable coronary artery disease
MeSH terms
Aged, Transaminases, C-Reactive Protein, Cardiovascular Diseases, Coronary Artery Disease, Diabetes Mellitus, Type 2, Double-Blind Method, Female, Follow-Up Studies, Humans, Immunosuppressive Agents, Male, Methotrexate, Middle Aged, Myocardial Infarction, Interleukin-6, Confidence Intervals, Proportional Hazards Models, Statistics, Nonparametric, Stroke, Metabolic Syndrome, Atherosclerosis, Interleukin-1beta

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