Mechanical insufflation-exsufflation to promote extubation success in critically ill adults on intensive care: protocol for a randomised controlled feasibility trial

Table 3 Progression criteria (based on feasibility parameters)

	Summary	Action required
Go (green)	Recruitment: > 70% expected recruitment target Follow-up: > 75% data completeness Adherence: > 75% adherence to intervention	Feasible to continue to main trial
Amend (amber)	Recruitment: 50–70% of expected recruitment target Follow-up: 65–75% data completeness Adherence: 65–75% adherence to intervention	Identify remediable factors; discuss with trial management group
Stop (red)	Recruitment: < 50% of expected recruitment target Follow-up: < 65% data completeness Adherence: < 65% adherence to intervention	Do not progress to main trial, unless there is a strong case that unanticipated remediable factors have been identified

ISSN: 2055-5784