Methods
We conducted a 2-arm RCT with parallel-groups (1:1), following a Bayesian sequential design. The trial was preregistered in the ISRCTN registry on 27/07/2020 (ISRCTN13455271) and received ethical approval from the Swedish Ethical Review Authority on 16/06/2020 (Dnr 2020–01427). A trial protocol was submitted prior to enrolment [