Table 1.

Feasibility objectives and progression criteria

	Green (feasible)	Amber (modify)	Red (not feasible)
Feasibility objective 1: Patient engagement with the trial
Recruitment acceptability	≥ 50% of eligible patients screened are consented and randomised	20–50%	< 20%
Recruitment rate	≥ 4 participants recruited per recruiting month per centre	1–3 per month per centre	< 1 per month per centre
Feasibility objective 2: Acceptability of the interventions
Intervention adherence	> 75% of participants receive the allocated intervention sessions as per protocol	55–75%	< 55%
Feasibility objective 3: Retention of participants in the trial
Proportion of randomised patients providing outcome data at 6 months follow-up	< 20% loss to follow-up at 6 months (including deaths and withdrawals)	20–30%	> 30%