Chelation therapy after the trial to assess chelation therapy: results of a unique trial

Maria D Avila1, Esteban Escolar, Gervasio A Lamas

  • 1Columbia University Division of Cardiology, Mount Sinai Medical Center, Miami Beach, Florida, USA.

Insights

EDTA chelation therapy shows promise for post-myocardial infarction (MI) patients, significantly reducing adverse cardiovascular events. Diabetic patients experienced even greater benefits, including reduced mortality, suggesting a potential new treatment avenue.

Area of Science:

  • Cardiovascular Medicine
  • Chelation Therapy
  • Clinical Trials

Background:

  • EDTA chelation therapy is used off-label for atherosclerosis.
  • Large-scale randomized trials are needed to evaluate its efficacy.

Purpose of the Study:

  • To review the results of the first large-scale randomized trial of EDTA chelation therapy.
  • To assess the safety and efficacy of EDTA-based chelation infusions in post-myocardial infarction (MI) patients.

Main Methods:

  • A $30 million National Institutes of Health-funded randomized trial.
  • Involved 1708 post-myocardial infarction (MI) patients.

Main Results:

  • An 18% reduction in a combined endpoint of death, MI, stroke, revascularization, or angina hospitalization (P=0.035).
  • Diabetic patients showed a 41% relative risk reduction (P=0.0002) and a 43% reduction in total mortality (P=0.011).
  • Favorable safety data were observed; reduced oxidative stress is a proposed mechanism.

Conclusions:

  • EDTA chelation may be a well-tolerated and effective treatment for post-MI patients.
  • Further replication and mechanistic studies are warranted before widespread implementation.
Abstract

Related Concept Videos

Clinical Trials01:16

Clinical Trials

Clinical trials are prospective experimental studies conducted on humans to determine the safety and efficacy of treatments, drugs, diet methods, and medical devices. Using statistics in clinical trials enables researchers to derive reasonable and accurate conclusions from the collected data, allowing them to make wise decisions in uncertain situations. In medical research, statistical methods are crucial for preventing errors and bias.
There are four phases in a clinical trial. A phase one...
8.5K
Complexation Equilibria: The Chelate Effect01:19

Complexation Equilibria: The Chelate Effect

In complexation reactions, metal atoms or cations interact with ligands to form donor-acceptor adducts called metal complexes. Ligands that bind through one donor site are monodentate, ligands with two donor sites are bidentate, and those with more than two donor sites are polydentate ligands. For example, ethylene diamine is a bidentate ligand that binds through two nitrogen donor atoms, forming a five-membered ring. EDTA is a polydentate ligand that binds through four oxygen and two nitrogen...
1.7K
Clinical Trials: Overview01:11

Clinical Trials: Overview

Clinical development focuses on how the drug will interact with the human body and encompasses four key phases of clinical trials, each serving a specific purpose in assessing the safety and effectiveness of new drugs. These phases overlap and build upon one another. Phase I involves a small group of healthy volunteers (typically 20-80 individuals) or, in cases where significant toxicity is expected, patients with the targeted disease, such as cancer or AIDS. The volunteers are tested for...
4.7K
Anticholinesterase Agents: Poisoning and Treatment01:26

Anticholinesterase Agents: Poisoning and Treatment

Anticholinesterases, also known as cholinesterase inhibitors, work by blocking the breakdown of acetylcholine, leading to its accumulation in the synaptic cleft. This accumulation indirectly enhances both muscarinic and nicotinic actions. These agents are classified as reversible or irreversible based on their mechanism of action.     
Irreversible agents form a strong bond with the cholinesterase enzyme, making it inactive. The breakdown of the phosphorylated enzyme is...
2.0K
Cholinergic Antagonists: Therapeutic Uses01:26

Cholinergic Antagonists: Therapeutic Uses

Antimuscarinic drugs have various therapeutic applications by inhibiting parasympathetic stimulation in different systems. Here are the key therapeutic uses of antimuscarinics:    
Respiratory Tract: Ipratropium, aclidinium, and tiotropium treat asthma, chronic bronchitis, and chronic obstructive pulmonary disease (COPD). They protect against bronchoconstriction caused by irritants like cigarette smoke, sulfur dioxide, and ozone. They also help reduce nasopharyngeal...
1.7K
Extraction: Advanced Methods00:56

Extraction: Advanced Methods

Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
1.2K