Correction to: Trials 21, 981 (2020)

https://doi.org/10.1186/s13063-020-04876-0

Following publication of the original article [1], we were notified of a typing mistake in one of the author names.

Originally published name: Alexander Schauvlieghe.

Corrected name: Alexander Schauwvlieghe.

The original article has been corrected.