RT Journal Article SR Electronic T1 ‘ThinkCancer!’: randomised feasibility trial of a novel practice-based early cancer diagnosis intervention JF BJGP Open JO BJGP Open FD Royal College of General Practitioners SP BJGPO.2023.0220 DO 10.3399/BJGPO.2023.0220 VO 8 IS 3 A1 Disbeschl, Stefanie LJ A1 Hendry, Annie K A1 Surgey, Alun A1 Walker, Daniel A1 Goulden, Nia A1 Anthony, Bethany F A1 Neal, Richard A1 Williams, Nefyn H A1 Hoare, Zoë Susannah Jane A1 Hiscock, Julia A1 Edwards, Rhiannon Tudor (RT) A1 Lewis, Ruth A1 Wilkinson, Clare YR 2024 UL http://bjgpopen.org/content/8/3/BJGPO.2023.0220.abstract AB Background UK cancer deaths remain high; primary care is key for earlier cancer diagnosis as half of avoidable delays occur here. Improvement is possible through lower referral thresholds, better guideline adherence, and better safety-netting systems. Few interventions target whole practice teams. We developed a novel whole-practice team intervention to address this.Aim To test the feasibility and acceptability of a novel, complex behavioural intervention, ‘ThinkCancer!’, for assessment in a subsequent Phase III trial.Design & setting Pragmatic, superiority pilot randomised controlled trial (RCT) with an embedded process evaluation and feasibility economic analysis in Welsh general practices.Method Clinical outcome data were collected from practices (the unit of randomisation). Practice characteristics and cancer safety-netting systems were assessed. Individual practice staff completed evaluation and feedback forms and qualitative interviews. The intervention was adapted and refined.Results Trial recruitment and workshop deliveries took place between March 2020 and May 2021. Trial progression criteria for recruitment, intervention fidelity, and routine data collection were met. Staff-level fidelity, retention, and individual level data collection processes were reviewed and amended. Interviews highlighted positive participant views on all aspects of the intervention. All practices set out to liberalise referral thresholds appropriately, implement guidelines, and address safety-netting plans in detail.Conclusion ‘ThinkCancer!’ appears feasible and acceptable. The new iteration of the workshops was completed and the Phase III trial has been funded to assess the effectiveness and cost-effectiveness of this novel professional behaviour change intervention. Delivery at scale to multiple practices will likely improve fidelity and reach.