Coronary restenosis

This study tests whether using a tiny ultrasound camera inside the leg arteries during a procedure to open blockages can prevent major problems like amputation or the artery narrowing again. About 772 adults with severe peripheral artery disease (chronic limb-threatening ischemia…

Researchers are testing whether a balloon catheter coated with the drug sirolimus can safely open narrowed coronary arteries in adults with heart disease. The balloon inflates to press the drug into the artery wall, aiming to keep the vessel open without leaving a permanent stent…

This trial tests whether high-intensity interval training (HIIT) or a home-based rehabilitation program can better improve exercise capacity in people who have had coronary artery bypass graft surgery. Participants, who are clinically stable and at low to moderate risk, will be a…

This study looks at how a special balloon called the OPN balloon is used to open severely hardened or blocked heart arteries. Researchers will track 300 adults who need this procedure to see how well it works and what problems might happen. The goal is to learn the best ways to u…

This study tests a new balloon coated with sirolimus (Virtue SAB) against an existing balloon coated with paclitaxel (AGENT DCB) for treating in-stent restenosis — when a previously placed stent in a heart artery becomes blocked again. About 740 people with one re-narrowed stent …

This study tests a special balloon coated with a drug (paclitaxel) to open blocked heart arteries. About 1,200 adults with coronary artery disease will receive either the Prevail balloon or another similar balloon. The goal is to see if the Prevail balloon is safe and works well …

This study tests a special balloon coated with two drugs to open blocked heart arteries in people with chest pain or minor heart attacks. The balloon is used instead of placing a new stent. About 30 participants will be followed for 12 months to see if the artery stays open and i…

This study tests two methods to fix a common problem: a heart stent that hasn't opened fully (underexpansion). One method uses a balloon to push the stent open, the other uses shock waves (lithotripsy) to crack the blockage. About 80 people with narrowed stents will be randomly a…

This study compares two methods for guiding a second stent procedure in people whose drug-coated stents have re-narrowed. One method uses standard X-ray (angiography), the other adds detailed imaging from inside the artery. The goal is to see which approach leads to fewer major h…

This study looks at whether taking two blood thinners (ticagrelor plus aspirin) is better than aspirin alone for keeping bypass grafts open in people who had heart surgery after a heart attack. About 360 participants will be followed for 1 to 3 years, and their grafts will be che…

This study tests whether a comprehensive treatment plan can reduce heart attacks and other serious events in people with rapidly-progressive coronary artery disease tied to inflammation. Researchers will compare each participant's outcomes before and after treatment. The study en…

This study tests whether an ultra-high-resolution CT scan, called photon-counting CT angiography, can accurately detect narrowing inside brain stents. The trial involves 200 adults who have had a stent placed in a brain artery and are due for a follow-up check. The new CT scan's …

This study reviews the long-term heart health of 1,500 patients who received a drug-eluting balloon to treat coronary artery disease between 2010 and 2025. Researchers will track major heart events like heart attacks, strokes, and repeat procedures. The goal is to better understa…

This study looks at a fast-progressing type of coronary artery disease that may be driven by inflammation. Researchers will compare 20 patients with this condition to 10 patients with typical heart disease, using lab tests, imaging, and physical assessments. The goal is to better…

This study aims to learn more about heart disease that is linked to inflammation but does not progress quickly. Researchers will follow 120 adults with this condition to track their treatments and health outcomes, such as heart attacks or the need for procedures. The goal is to b…

This study is collecting information from 3,000 people who receive a special drug-coated balloon to open blocked heart arteries. The goal is to see how effective and safe the balloon is in real-world use, including for different types of blockages and patient conditions. Research…