This is a 3-arm parallel (1:1:1) randomised study of cardiac resynchronisation therapy devices in patients with heart fa clinical trials

Comparing three types of specialist pacemakers to improve heart function and reduce rhythm problems in heart failure

This study compares three types of pacemakers for people in the UK with heart failure. It aims to find out which one works best to improve heart function, reduce symptoms, and prevent abnormal heart rhythms over six months.