Table 1 Feasibility objectives and progression criteria
| Â | 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% |