Following publication of the original article [1], we have been informed that the MULTIBENZ trial was conceived as a non-inferiority trial, but after the sample size calculation suggested that such a trial would not be feasible, the authors decided to move to a superiority trial.Unfortunately, the protocol version that was used was this old 'inferiority' version and not the one that the authors registered at Clinical trials.govand which they submitted for ethical approval.In summary, the trial was a superiority trial and not a "non-inferiority" trial.To calculate the new sample size, the authors took into account published data from our research group, which