Opportunities and challenges of delivering digital clinical trials: lessons learned from a randomised controlled trial of an online behavioural intervention for children and young people

Table 4 Key targets and attainment in ORBIT

	Target	Actual
Recruitment
Internal pilot	66 participants by 9th month	67 participants by 6th month
Full trial	220 by 18th month	224 by 18th month
Engagement with the intervention
Internal pilot	60% of participants classified as treatment completers by 9th month	96% participants classified as treatment completers by 6th month
Full trial	Not specified	90.6% completed
Retention to primary end point
Internal pilot	80% retention by 9th month	88% retention by 6th month
Full trial	80% retention	90% retention

_{Treatment completers were specified a prior as completion of the first 4/10 therapy chapters}

ISSN: 1745-6215