Study design
A prospective open-label single-arm phase II clinical trial of patients
undergoing mepolizumab treatment at a tertiary Ear, Nose and Throat
practice was performed (trial registration ID ACTRN12618000113257). The
study received ethics approval from St Vincent’s Hospital Human Research
Ethics Committee (REGIS ID 2019/PID04424). Written informed consent was
obtained from all patients prior to study participation.