Cited by 936Fatty Acid Research and HealthNutritional Studies and DietAcute Myocardial Infarction Research

n–3 Fatty Acids and Cardiovascular Events after Myocardial Infarction

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Kromhout, Daan, Giltay, Erik J., Geleijnse, Johanna M.·2010·New England Journal of Medicine

Abstract

BACKGROUND: Results from prospective cohort studies and randomized, controlled trials have provided evidence of a protective effect of n-3 fatty acids against cardiovascular diseases. We examined the effect of the marine n-3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) and of the plant-derived alpha-linolenic acid (ALA) on the rate of cardiovascular events among patients who have had a myocardial infarction. METHODS: In a multicenter, double-blind, placebo-controlled trial, we randomly assigned 4837 patients, 60 through 80 years of age (78% men), who had had a myocardial infarction and were receiving state-of-the-art antihypertensive, antithrombotic, and lipid-modifying therapy to receive for 40 months one of four trial margarines: a margarine supplemented with a combination of EPA and DHA (with a targeted additional daily intake of 400 mg of EPA-DHA), a margarine supplemented with ALA (with a targeted additional daily intake of 2 g of ALA), a margarine supplemented with EPA-DHA and ALA, or a placebo margarine. The primary end point was the rate of major cardiovascular events, which comprised fatal and nonfatal cardiovascular events and cardiac interventions. Data were analyzed according to the intention-to-treat principle, with the use of Cox proportional-hazards models. RESULTS: The patients consumed, on average, 18.8 g of margarine per day, which resulted in additional intakes of 226 mg of EPA combined with 150 mg of DHA, 1.9 g of ALA, or both, in the active-treatment groups. During the follow-up period, a major cardiovascular event occurred in 671 patients (13.9%). Neither EPA-DHA nor ALA reduced this primary end point (hazard ratio with EPA-DHA, 1.01; 95% confidence interval [CI], 0.87 to 1.17; P=0.93; hazard ratio with ALA, 0.91; 95% CI, 0.78 to 1.05; P=0.20). In the prespecified subgroup of women, ALA, as compared with placebo and EPA-DHA alone, was associated with a reduction in the rate of major cardiovascular events that approached significance (hazard ratio, 0.73; 95% CI, 0.51 to 1.03; P=0.07). The rate of adverse events did not differ significantly among the study groups. CONCLUSIONS: Low-dose supplementation with EPA-DHA or ALA did not significantly reduce the rate of major cardiovascular events among patients who had had a myocardial infarction and who were receiving state-of-the-art antihypertensive, antithrombotic, and lipid-modifying therapy. (Funded by the Netherlands Heart Foundation and others; ClinicalTrials.gov number, NCT00127452.).

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Crossref · 10.1056/nejmoa1003603

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  • The STRENGTH, VITAL, ASCEND, ORIGIN, OMEGA, ALPHA-OMEGA, GISSI-HF and GISSI-P trials randomized patients to receive either a combination of EPA and DHA or placebo; yet only the GISSI trials noted a statistically significant effect on cardiovascular events and mortality.

    “The STRENGTH, VITAL, ASCEND, ORIGIN, OMEGA, ALPHA-OMEGA, GISSI-HF and GISSI-P trials randomized patients to receive either a combination of EPA and DHA or placebo; yet only the GISSI trials noted a statistically significant effect on cardiovascular events and mortality [96–103].”

    From Established and Emerging Lipid-Lowering Drugs for Primary and Secondary Cardiovascular Prevention (2023) · cites this paper as [101]

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  • More recent trials have shown no benefit of low-dose n-3 PUFA supplements in middle-aged post-MI populations.

    “while more recent trials have shown no such benefit in middle-aged post-MI populations with low-dose n-3 PUFA supplement 7-9”

    From Effects of n-3 Fatty Acid Supplements in Elderly Patients After Myocardial Infarction (2021) · cites this paper as [9]

    The Discussion (p. 2026) reports that a low dose of EPA-DHA had no effect on major cardiovascular events after myocardial infarction. But the trial participants averaged 69 years of age, so this paper does not establish the claim specifically for a middle-aged post-MI population. (LLM, conf=0.86)

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  • Even among omega-3 fatty acid studies, there are marked differences with respect to the relatively low doses of omega-3 administered and the ratio of EPA to DHA.

    “Even among omega‐3 fatty acid studies, there are marked differences with respect to the relatively low doses of omega‐3 administered and the ratio of EPA to DHA.16, 17, 18, 19, 20, 21, 22, 23, 24”

    From Rationale and design of <scp>REDUCE‐IT</scp> : Reduction of Cardiovascular Events with Icosapent Ethyl–Intervention Trial (2017) · cites this paper as [20]

    The Study Design and Patients section describes this trial’s low-dose intervention and specifies an EPA-to-DHA ratio of 3:2; Study Intervention reports average daily intakes of 226 mg EPA and 150 mg DHA. The Discussion notes that earlier trials used EPA with or without DHA, but our copy does not establish marked differences in dose or EPA-to-DHA ratios across the studies cited in the sentence. (LLM, conf=0.82)

    Experimental — accuracy not yet measured
  • More recent omega-3 therapy outcome studies conducted in the presence of statins have been less encouraging, but evaluated nonhypertriglyceridemic patient populations and administered low doses of long-chain omega-3 fatty acids.

    “Other more recent omega‐3 therapy outcome studies conducted in the presence of statins have been less encouraging, but these studies were characterized by evaluating nonhypertriglyceridemic patient populations (eg, TG <200 mg/dL) and administering low doses of long‐chain omega‐3 fatty acids (eg, eicosapentaenoic acid [EPA] and/or docosoahexaenoic acid [DHA]).19, 20, 21, 22, 23, 24”
  • The initial manuscript's results were skewed because its search strategy missed significant studies and included trials that mostly used EPA and DHA combinations rather than IPE.

    “Our initial manuscript included Trials such as ORIGIN8, ASCEND9, Alpha Omega10, and JELIS5; among these trials, only one trial had IPE, and the rest of the trials had a combination of EPA and DHA, so our results were skewed as search strategy missed significant studies.”

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Research works printed but not linked: 1

  1. [9]9. International statistical classification of diseases and related health problems. 10th rev. Vol. 1. Geneva: World Health Organization, 1992.

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Authors
Kromhout, D., Giltay, E. J., & Geleijnse, J. M.
Affiliations
  • Wageningen University & Research (NL)
  • Leiden University Medical Center (NL)
Venue
New England Journal of Medicine
Published
2010-11-18
Volume
363
Issue
21
Pages
2015-2026
ISSN
  • 0028-4793 (ISSN-L)
  • 1533-4406
OpenAlex
W2026310866
Cited by
936
References
29
Citations by year
2026: 18 · 2025: 20 · 2024: 23 · 2023: 39 · 2022: 39 · 2021: 51 · 2020: 55 · 2019: 61 · 2018: 58 · 2017: 63 · 2016: 62 · 2015: 62 · 2014: 83 · 2013: 93 · 2012: 117
FWCI
91.31
Type
journal article
Language
en
Open access
Locations
  • New England Journal of Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • Socio-Environmental Systems Modeling (acceptedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • Leiden Repository (Leiden University) (submittedVersion)
  • Pure Amsterdam UMC (submittedVersion)
  • Radboud Repository (Radboud University) (submittedVersion)
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Fatty Acid Research and Health
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutritional Studies and Diet
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Acute Myocardial Infarction Research
Keywords
omega-3 fatty acids, eicosapentaenoic acid, docosahexaenoic acid, alpha-linolenic acid, myocardial infarction, cardiovascular events, women, cardiovascular disease prevention, dietary intervention, omega-6 fatty acids, LDL cholesterol, triglycerides, HDL cholesterol
MeSH terms
Aged, Aged, 80 and over, Cardiovascular Diseases, Docosahexaenoic Acids, Double-Blind Method, Drug Therapy, Combination, Female, Follow-Up Studies, Humans, Male, Margarine, Middle Aged, Myocardial Infarction, Eicosapentaenoic Acid, Fatty Acids, Omega-3, alpha-Linolenic Acid, Dietary Supplements, Kaplan-Meier Estimate

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