CMX-2043 is a is an α-lipoic acid analog developed by Ischemix LLC for reduction of cellular injury and organ damage due to ischemia-reperfusion injury (IRI). CMX-2043 was more effective than lipoic acid in antioxidant effect, activation of insulin receptor kinase, soluble tyrosine kinase, and Akt phosphorylation, and activated insulin-like growth factor 1 as effectively as lipoic acid. In a rat model of cardiac ischemia-reperfusion injury, treatment with CMX-2043 reduced myocardial IRI as measured by the myocardial infarction/area at risk ratio, and reduced the incidence of arrhythmia. In a 360-patient Phase 2 trial, CMX-2043 demonstrated safety but did not meet pre-specified endpoints regarding prevention of contrast-induced acute kidney injury or cardiac injury in cardiac catheterization lab subjects, and no further development of the drug was reported.