The AGENT Drug-Coated Balloon (Boston Scientific Corp.) is a paclitaxel-coated balloon catheter indicated for treatment of coronary in-stent restenosis (ISR). It is intended to be used after appropriate vessel preparation in adult patients undergoing percutaneous coronary intervention (PCI) in coronary arteries 2.0 millimeters (mm) to 4.0 mm in diameter and lesions up to 26 mm in length for the purpose of improving myocardial perfusion when treating ISR.