Ranolazine for Incomplete Vessel Revascularization Post-Percutaneous Coronary Intervention (PCI)

Inclusion Criteria: 1. Written informed consent 2. Males and females aged 18 years and older 3. History of chronic angina defined as at least 2 episodes of anginal pain or discomfort in the chest, jaw, shoulder, back, neck, or arm that is precipitated by exertion or emotional stress, and relieved by rest or sublingual nitroglycerin, which occurred on at least 2 separate days and at least 14 days prior to PCI (in the case of staged PCI procedures, at least 14 days prior to the first PCI in the series). Participants may or may not have additional angina episodes within the 14 days prior to their first PCI in the series, as well as any time prior to Randomization. 4. PCI for any indication (ACS or non-ACS). For the purposes of stratification at randomization, ACS will be defined as hospitalization for anginal pain or discomfort within the previous 24 hours to their hospitalization with any one (or more) of the following criteria: i. Elevated troponin or creatinine kinase-MB (CK-MB) consistent with myocardial infarction (MI), as reported by local laboratory and measured prior to index PCI ii. Electrocardiographic changes (including transient changes) comprising new or presumably new ST segment depression ≥ 0.1 mV (≥ 1 mm), or ST segment elevation ≥ 0.1 mV (≥ 1 mm) in at least 2 contiguous leads, or new or presumably new Left Bundle Branch Block 5. Randomization within 14 days post-PCI. In the case of staged PCI procedures, randomization has to occur within 14 days of the last PCI in the series. Participants may be randomized starting on the day of PCI and anytime during the following 14 days. PCI is defined as an attempt to cross the lesion with a wire with the intention of performing revascularization. 6. Post-PCI (post the last PCI for staged procedures) evidence of incomplete revascularization defined as the presence of one or more visually estimated ≥ 50% stenoses in one or more coronary arteries with reference vessel diameter of at least 2.0 mm, whether in the target vessel or in a non-target vessel regardless of the presence or absence of coronary collaterals. In the case of a participant post-coronary artery bypass grafting (CABG), incomplete revascularization is defined as the presence of one or more visually estimated ≥ 50% stenoses in an unbypassed epicardial vessel with a reference diameter of ≥ 2.0 mm, or one or more visually estimated ≥ 50% stenoses in a bypass graft supplying an otherwise unrevascularized myocardial territory. 7. Clinically stabl…