GLobal Assessment of Plaque reGression With a PCSK9 antibOdy as Measured by intraVascular Ultrasound

Inclusion criteria

• Clinical indication for coronary angiography
• Subjects already taking statin therapy, niacin or ezetimibe at screening must have been on a stable dose for at least 4 weeks prior to screening LDL-C. Subjects not taking lipid-regulating therapy must enter the study via a lipid stabilization period. Subjects who are intolerant to statins must meet statin intolerance entry criteria
• Fasting LDL-C ≥ 80 mg/dL (2.07 mmol/L) with or without additional risk factors, or, LDL-C ≥ 60 -< 80 mg/dL (1.55-2.07 mmol/L) in the presence of one major or three minor risk factors

Subjects must meet the following criteria at the qualifying coronary catheterization procedure:

• Evidence of coronary heart disease (at least one lesion in a native coronary artery that has > 20% reduction in lumen diameter) or prior percutaneous intervention (PCI)
• Left main coronary artery < 50% reduction in lumen diameter by visual estimation
• Target coronary artery for IVUS must be accessible to the IVUS catheter, must not have a > 50% reduction in lumen diameter within the target segment (and at least 40 mm in length); cannot have undergone prior PCI or coronary artery bypass graft (CABG) and is not a candidate for intervention over the next 18 months. It may not be a bypass graft, bypassed vessel or culprit vessel for previous myocardial infarction (MI).

Exclusion criteria

• Coronary artery bypass graft surgery < 6 weeks prior to the qualifying IVUS
• New York Heart Association (NYHA) III or IV heart failure, or last known left ventricular ejection fraction less than 30%
• Uncontrolled cardiac arrhythmia that is not controlled by medications in the 3 months prior to randomization
• Known hemorrhagic stroke
• Uncontrolled hypertension at randomization
• Fasting Triglycerides ≥ 400 mg/dL (4.5 mmol/L) at screening
• Type 1 diabetes or poorly controlled type 2 diabetes (hemoglobin A1c [HbA1c] > 9%) at screening.
• Moderate to severe renal dysfunction (estimated glomerular filtration rate [eGFR] < 30 ml/min/1.73m²) at screening.