Safety or efficacy outcome?

Dear friends, I got confused regarding outcome study I had to review.

The primary outcome is:
Time to the first occurrence of any of the following adjudicated components of the primary composite endpoint: cardiovascular death, myocardial infarction and stroke.

The study design is:
Phase III, Multicentre, International, Randomised, Parallel Group, Double Blind Cardiovascular Safety Study of "Agent A" Compared to Usual Care

Greatly appreciate your help - is this primary outcome appear to be efficacy outcome or safety outcome?