IVUS Assessment of Atheroma Burden After Acute Coronary Syndrome

Status Completed

Clinical Trial Summary

Coronary angioplasty is rather frequently performed in such situations, presumably because, changes in the atherosclerotic plaque under drug treatment, have remained poorly described so far. Intravascular ultrasound (IVUS) enables a precise description of coronary atheroma, better than the one provided by coronary angiography.

Clinical Trial Description

According to current guidelines, patients with coronary lesions with stenosis <70% should receive optimal secondary prevention drug treatment without angioplasty, even after an acute coronary syndrome (ACS). Nevertheless, coronary angioplasty is rather frequently performed in such situations, presumably because, changes in the atherosclerotic plaque under drug treatment, have remained poorly described so far. Intravascular ultrasound (IVUS) enables a precise description of coronary atheroma, better than the one provided by coronary angiography.

The first objective is to assess by endo-coronary ultrasound, under optimal medical treatment, the evolution of atheromatous plaque (with stenosis <70%). The evolution will be appreciated after 12 months of treatment the percentage of atheromatous volume (PVA). The aim of the first secondary objective to evaluate, after 12 months of treatment, the evolution of the total atheromatous volume (VAT) and the standardized total atheromatous volume (standardized VAT). The Second secondary objective is to evaluate by endo-coronary ultrasound, the evolution of a stable atheromatous plaque. This analysis will be performed in patients with a second coronary lesion (atheroma plaque), resulting in less than 70% stenosis, and not being responsible for acute coronary syndrome. The evolution of the stable plate will be compared to the evolution of the unstable plate. Finally, the third secondary objective is to estimate the incidence of clinical events (death, acute coronary syndromes, ischemic stroke, revascularization, hospitalization for heart failure) within 12 months of the occurrence of an acute coronary syndrome managed by medical treatment optimal secondary prevention (without performing angioplasty). ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT01578005
Study type	Observational
Source	University Hospital, Toulouse
Contact
Status	Completed
Phase
Start date	March 2011
Completion date	December 2019

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

IVUS Assessment of Atheroma Burden After Acute Coronary Syndrome — OPTIVUS

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms