Box 1 Eligibility criteria for participation in trial

Inclusion criteria

Aged 16 years or older;

Meets DSM-5 criteria for BN (purging or non-purging type) or Other Specified Feeding or Eating Disorder (OSFED) with bulimic behaviours i.e., must have engaged in objective binge episodes (OBEs) and inappropriate compensatory behaviours (vomiting, excessive laxative or diuretic use, extreme exercise or severe dietary restriction) at least once per week in the preceding 2 months;

BMI of 20 or above;

Access to a private space with sufficient technology to engage in telemedicine sessions (i.e., digital device with video camera and internet connection)

Exclusion criteria

Currently engaged in ongoing  psychological treatment for their eating disorder;

Non-proficient English speaker;

Serious medical instability;

Active suicidality or self-harm behaviours;

Severe psychiatric conditions that would interfere with treatment (e.g., psychosis);

Pregnant or breast-feeding;

Current use of any stimulant medication;

Reside outside of Australia