Cardiac resynchronisation therapy (CRT) in patients with symptomatic heart failure and left bundle branch block (LBBB) can be achieved with His-bundle pacing correcting the bundle branch block (His-CRT). The present study is the largest randomised study between His-CRT and biventricular pacing (BiV-CRT) to date.  In heart failure patients with LBBB, His-CRT provided comparable clinical and physical improvement compared to BiV-CRT at the expense of higher pacing thresholds.