Impact of PCSK9 Inhibitors on Coronary Microvascular Dysfunction in Patients With Atherosclerotic Cardiovascular Disease Proved by Myocardial Ischemia and Needing Coronarography (MICROPROTECT)

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    University Hospital, Grenoble
Updated on 5 December 2022


Proprotein convertase subtilisin/kexin type 9 inhibitor monoclonal antibodies (anti-PCSK9) significantly reduce the serum LDL-C level, leading to a regression of the coronary epicardial plaque demonstrated by intracoronary ultrasonography (IVUS), as well as cardiovascular events (CV) in patients with atherosclerotic CV disease treated with statin. The impact of PCSK9 inhibition on coronary microcirculation has never been assessed. However, microvascular coronary dysfunction (CMVD) is a powerful prognostic marker, irrespective of conventional CV risk factors, but also of the severity of the epicardial coronary involvement detected during coronary angiography. The investigators hypothesized that anti-PCSK9 would decrease CMVD, measured by the microcirculatory resistance index (MRI) during coronary angioplasty (Percutaneous coronary intervention, PCI) in patients with myocardial ischemia proved in myocardial scintigraphy.

Condition Atherosclerotic Cardiovascular Disease
Treatment Evolocumab 140 MG/ML [Repatha]
Clinical Study IdentifierNCT04338165
SponsorUniversity Hospital, Grenoble
Last Modified on5 December 2022

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