ROSIER is an IDEAL stage 3, multicentre, pragmatic, unblinded, two-arm individually randomised controlled non-inferiorit clinical trials

What is the best treatment for patients after treatment for bile duct stones?

This study looks at the best way to treat gallstones after they've been removed from the bile duct. We want to know if taking out the gallbladder helps prevent problems later on. It could improve care for thousands of people.