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High-dose multivitamins alone or in conjunction with EDTA-based chelation fail to reduce CV events among diabetes patients after MI: JAMA

Written By : Dr. Shravani Dali |Medically Reviewed By : Dr. Kamal Kant Kohli Published On 2025-03-06T09:15:02+05:30  |  Updated On 6 March 2025 12:01 PM IST
High-dose multivitamins alone or in conjunction with EDTA-based chelation fail to reduce CV events among diabetes patients after MI: JAMA
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High-dose multivitamins alone or in conjunction with EDTA-based chelation fail to reduce CV events among diabetes patients after MI, suggests a study published in the JAMA.

In 2013, the Trial to Assess Chelation Therapy (TACT) reported that in 1708 patients with stable coronary disease and prior myocardial infarction (MI), oral multivitamins and multiminerals (OMVMs), in a factorial design with edetate disodium (EDTA) chelation therapy, did not reduce cardiovascular events relative to placebo OMVMs, but active EDTA combined with active OMVMs was superior to placebo OMVM/placebo EDTA.

A study was done to compare OMVM vs placebo in terms of efficacy for reducing major adverse cardiovascular events in patients with diabetes and prior MI. The TACT2 randomized, multicenter double-masked 2 × 2 factorial clinical trial took place across 88 sites in the US and Canada.

Participants were 50 years or older, had diabetes, and had an MI 6 weeks ago or more. TACT2 participants were enrolled between September 2016 and December 2020. Data were collected between October 2016 and June 2023. The primary end point was the composite of all-cause mortality, MI, stroke, coronary revascularization, or hospitalization for unstable angina. Results A total of 1000 participants were randomized (500 in the active OMVM group and 500 in the placebo group). The median (IQR) age was 67 (60-72) years, and 730 (73%) were male. Median (IQR) follow-up was 48 (34-58) months.

The primary end point occurred in 175 participants (35%) in the active OMVM group and 175 (35%) in the placebo group (hazard ratio [HR], 0.99 [95% CI, 0.80-1.22]; P = .92). The 5-year event rate for the primary end point in the EDTA chelation + active OMVM group was 34.0%; in the EDTA chelation + placebo OMVM group, 35.7%; in the placebo infusion + active OMVM group, 36.0%; and in the placebo infusion + placebo OMVM group, 34.3%.

The comparison of the active infusion + active OMVM with the placebo infusion + placebo OMVM was not significant (HR, 0.91 [95% CI, 0.67-1.23]; P = .54). Although nonsignificant, there was a numerically higher event rate of MI, stroke, mortality from cardiovascular causes in the active OMVM compared to placebo OMVM group. The results of this randomized clinical trial demonstrated that, for participants with chronic coronary disease, diabetes, and a previous MI, high-dose OMVM alone or in conjunction with EDTA-based chelation did not reduce cardiovascular events.

Reference:

Ujueta F, Lamas GA, Anstrom KJ, et al. Multivitamins After Myocardial Infarction in Patients With Diabetes: A Randomized Clinical Trial. JAMA Intern Med. Published online March 03, 2025. doi:10.1001/jamainternmed.2024.8408

High-dosemultivitaminsaloneconjunctionEDTA-basedchelationfailreduceCVeventsdiabetespatients
Source : JAMA
Dr. Shravani Dali
Dr. Shravani Dali

    Dr. Shravani Dali has completed her BDS from Pravara institute of medical sciences, loni. Following which she extensively worked in the healthcare sector for 2+ years. She has been actively involved in writing blogs in field of health and wellness. Currently she is pursuing her Masters of public health-health administration from Tata institute of social sciences. She can be contacted at editorial@medicaldialogues.in.

    Dr. Kamal Kant Kohli
    Dr. Kamal Kant Kohli

    Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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