NK-104: a novel synthetic HMG-CoA reductase inhibitor

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Abstract
An elevated level of low-density lipoprotein (LDL)-cholesterol has been recognised as the most important risk factor for coronary artery disease (CAD). Development of the inhibitors of 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) (‘statins’), a rate-limiting key enzyme of cholesterol synthesis pathway, has revolutionised the cholesterol-lowering therapy. In the last decade, effective primary and secondary preventive measures have been established in several statin trials to prevent future events of CAD by lowering LDL-cholesterol levels. These results supported the ‘lower is better’ hypothesis in the relationship between LDL-cholesterol levels and CAD. NK-104 (pitavastatin, previously named as itavastatin or nisvastatin, Kowa Company Ltd., Tokyo) has recently been developed as a new chemically synthesised and powerful statin. On the basis of reported data, the potency of NK-104 is dose-dependent and appears to be equivalent to that of atorvastatin. This new statin is safe and well-tolerated in the trea...