Table 2 Continuation criteria which indicate whether to proceed with a randomised controlled trial
Proceed with RCT | Proceed with RCT following some changes to the protocol | Do not proceed with RCT unless problems can be overcome |
|---|---|---|
Recruitment of 4 general practices within 3 months | Recruitment of 4 general practices within 3–6 months | Unable to recruit 4 general practices within 6 months |
Retention of ≥ 3 general practices throughout 6-month intervention period | Retention of 2 general practices throughout 6-month intervention period | Retention of < 2 general practices throughout 6-month intervention period |
Recruitment of 3 pharmacists within 3 months | Recruitment of 3 pharmacists within 3–6 months | Unable to recruit 3 pharmacists within 6 months |
Retention of ≥ 2 pharmacists throughout 6-month intervention period | Retention of 1 pharmacist throughout 6-month intervention period | Retention of 0 pharmacists throughout 6-month intervention period |
Recruitment of 50 PROM study patients from each practice | Recruitment of 25–49 PROM study patients from each practice | Recruitment of < 25 PROM study patients from each practice |
Retention of ≥ 35 PROM study patients for follow-up | Retention of 25–34 PROM study patients for follow-up | Retention of < 25 PROM study patients for follow-up |
GPP intervention acceptable to ≥ 75% GPs, pharmacists and patients involved | GPP intervention acceptable to 50–74% GPs, pharmacists and patients involved | GPP intervention acceptable to < 50% GPs, pharmacists and patients involved |
Delivery of GPP intervention feasible | Delivery of GPP intervention partially feasible | Delivery of GPP intervention not feasible |
GPP intervention demonstrates cost savings which outweigh the cost of implementing the intervention | GPP intervention demonstrates potential for cost savings which outweigh the cost of implementing the intervention | GPP intervention does not demonstrate potential cost savings which outweigh the cost of implementing the intervention |