The TACT study evaluated the long-term effects of EDTA chelation therapy on patients with stable coronary disease, finding that it reduced the risk of major cardiovascular events.
Quality of life measures, including the Duke Activity Status Index and Mental Health Inventory, showed no significant differences between the chelation and placebo groups over a 2-year period.
Overall, the study concluded that EDTA chelation therapy did not improve quality of life in patients post-myocardial infarction despite its benefits in reducing certain health risks.