Correction: Trials 23, 801 (2022)

https://doi.org/10.1186/s13063-022-06714-x

Following publication of the original article [1], the authors advised that affiliation 7 (now removed) was a duplicate of affiliation 1. The affiliation information has now been corrected in the published article. The authors thank you for reading this erratum and apologize for any inconvenience caused.