Benefits of adding a energetic agent to -blockers to achieve optimal reduction of angina. Review of the main studies Is coronary obstruction the only player in ischemic heart disease? Sambuceti G. Eur J Nucl Med Mol Imaging. 2005;32:385-388. Is coronary obstruction the only player in ischemic heart disease? Cheng VY, et al. Circulation. 2011;124:2423-2432. Myocardial ischemia is multifactorial Marzilli M, et al. J Am Coll Cardiol. 2012;60:951-956. Ischemia is an energy deficiency Marzilli M, et al. J Am Coll Cardiol 2012;60:951–6. Increased energy in the ischemic heart +33% P c r/A T P ra tio 2 ,0 0 P = 0 .0 4 1 ,5 0 1 ,0 0 p la c e b o Fragasso G, et al. Eur Heart J. 2006;27:942-948. TM Z Act on both sides of the cellular energy balance To protect the cells from ischemia, the energy supply needs to remain greater than the energy demand. Cellular energy balance Proven antianginal efficacy with -blockers Time to 1-mm ST depression 450 Time to onset of angina 500 P<0.01 P<0.01 Time (s) Time (s) 450 400 NS 350 400 n=426 Stable angina patients All on metoprolol (50 mg/day) NS 350 300 W0 W12 300 5 NS P<0.01 Angina attacks 4 3 2 1 0 W0 W12 Nitrate use / week (n) Mean nitrate use / week (n) Angina attacks/week (n) W0 W12 Szwed H, et al. TRIMPOL II Eur Heart J. 2001;22:2367-2374. 4 NS P<0.01 3 2 1 0 W0 W12 Trimetazidine Placebo Proven antianginal efficacy with -blockers n=53 Stable angina patients uncontrolled with Propranolol 40 mg/day Michaelides AP, et al. Clin Drug Invest. 1997;13:8-14. Proven antianginal efficacy with -blockers Nesukay E, et al. ESC 2013. Abstract 86728. Conclusions Chronic ischemic heart disease (IHD) is still a significant clinical burden IHD results from a number of mechanisms To ensure optimal management of IHD on top of -blockers, it is essential to address the energetic origin of ischemia Trimetazidine MR is an effective drug to use in combination with β-blockers to relieve angina effectively.