In 2012, the General Medical Council (GMC) funded PRACtICe (PRevalence And Causes of prescrIbing errors in general practiCe) study, reported that 1 in 20 prescriptions in general practice were found to have a prescribing or monitoring error. The PRACtICe study also proposed some strategies to consider to improve prescribing safety.

Further to the PRACtICe study, in line with recommendation from the Medical Research Council (MRC) for developing complex interventions, we conducted a series of focus groups with health care professionals and members of the public to identify possible ways to improve the prescribing education provided for general practitioner (GP) trainees - a group that was identified as likely to benefit from additional education and training in prescribing safety. These focus group discussions identified a pharmacist-led review of the prescribing done by GP trainees, together with feedback, as a promising potential intervention. This intervention, named REVISiT, was piloted with ten trainees and their trainers in the East Midlands. The error rate for the trainees was recorded as 9%. Interviews with the trainees and trainers undertaken following the intervention highlighted that REVISiT was positively received. Some GPs gave examples of how their prescribing practice had changed following the intervention.

After this pilot study, we conducted another study involving interviews, focus groups and a stakeholder event with key stakeholders (practice, policy, legal and members of the public) to explore the next steps for REVISiT. Whilst some participants proposed that REVISiT be immediately implemented with minor modifications, others pointed to the need to establish the impact of the intervention more broadly (including its impact in areas other than education and training). Additionally, they highlighted the importance of establishing its effectiveness in order to support making a substantial case for future allocation of resources. Conducting a randomised controlled trial (RCT) would help establish the effectiveness of the REVISIT intervention and its impact on areas of professional practice that may impact prescribing safety. However, before we can do this, there are components of the REVISiT intervention and RCT process that we need to further explore, test and refine in order for it to be employed on a wider basis. This pilot study of the REVISiT intervention is being undertaken to do this further exploration, testing and refining.

Prescribing medication is integral to the role of a general practitioner (GP). Figures from 2017 show that an estimated 1,105.8 million prescription items were dispensed in England alone. However, in practice, sometimes prescribing errors occur and these have the potential to cause significant morbidity and mortality. The General Medical Council (GMC) funded PRACtICe study which set out to determine the prevalence and nature of prescribing and monitoring errors in general practices in England identified prescribing errors in around one in twenty prescriptions. The study also put forward explanations as to why some of the errors may have occurred and offered recommendations for strategies and areas of focus that could potentially be explored to improve prescribing. One of these areas highlighted for consideration was providing further support for prescribing, specifically for GPs in training. The study found that, as a group, GPs in training did not necessarily receive training in prescribing that was comprehensive and structured. GPs in training also reported feeling unprepared for managing patients with complex and long term health needs.

Further to the PRACtICe study, in line with recommendation from the Medical Research Council (MRC) for developing complex interventions4, a series of focus groups5 were convened with health care professionals and members of the public to explore in more details which ideas proposed as part of the PRACtICe study should be considered for further development. The results further highlighted the desire for GPs in training to receive further educational input in the area of prescribing practice and safety. Furthermore, an educational intervention considered that could potentially meet this training need, was an individualised, pharmacist-led retrospective review of GPs in training prescribing practice (REVISiT intervention).

Following on from the focus group study, a small pilot study was conducted in the East Midlands to explore the feasibility of using the REVISiT intervention in general practice.6 The REVISiT intervention itself started with a primary care pharmacist undertaking a retrospective review of approximately 100 consecutive prescription items prescribed by ten GPs in training (in total 1028 prescriptions were reviewed). This was then followed by each GP in training, and their trainer receiving individualised feedback in a form of a report. The report presented the GP with areas where errors were identified and examples of 'good prescribing'. The impact of the intervention on prescribing and the experience of participating in the pilot study was assessed qualitatively. For this, GPs in training and their trainers participated in two interviews, one was conducted within a month of receiving feedback and the second one within 3-months of receiving feedback. Results from this pilot study reported an error rate of 9%, which was higher than the 5% error rate recorded in the GMC PRACtICe study. Furthermore, the pharmacist review identified a high rate of 'suboptimal' prescribing (35% of prescriptions) which identified further areas where GPs in training could improve on their prescribing. The qualitative narratives revealed that the REVISiT intervention was positively received by GPs and was deemed a unique training opportunity to receive individualised feedback on prescribing skills and knowledge that had potential to improve their prescribing and subsequently patient safety. GPs in training gave examples of where their prescribing had changed as a result of the REVISiT intervention and some communicated their intention to change, or implement a prescribing behaviour when the next opportunity arose.

After the pilot study, we conducted a qualitative study involving interviews, focus groups and a stakeholder event with key stakeholders (practice, policy, legal and members of the public) to explore whether the REVISiT intervention, in its current or modified form, should be considered for wide spread adoption into GP training and general practice or whether an evaluation study to establish the effectiveness and cost-effectiveness of the intervention was first warranted. Some participants expressed their disbelief that an intervention such as REVISiT was not already in routine use in general practice. They mainly felt that with some modifications the intervention would be fit to recommend for use. On the contrary, some suggested that more robust evidence, generated from conducting a definitive randomised controlled trial, would be needed before directing already limited resources towards an intervention in its early stages of development and use such as REVISiT.

However, before we are able to conduct a definitive randomised controlled trial of the REVISiT intervention to assess its effectiveness in improving prescribing of GPs in training (increase in the proportion of prescriptions prescribed correctly / reduction of observed prescribing errors) and the cost-effectiveness, there are components of the intervention itself and the trial process that need to be further explored, tested and refined. This step is important because there is evidence in the literature pointing to the 'failure' of some interventions arising due to poor intervention and study design and description.4

Inclusion Criteria:

• Participants who are able and willing to give written informed consent and are either:
• GPs in their final year of training who have received approval/permission from their GP trainer to participate in the study or;
• GP trainers with a trainee who has consented to take part in the pilot study or;
• Primary care pharmacists (employed by the practice, the primary care network (PCN) or the clinical commissioning group (CCG) in which the GP in training works) with ideally, at least 6-months experience of working in GP practices or;
• Pharmacists specially trained to deliver the REVISiT intervention and trained on good clinical practice (GCP) in research

Exclusion Criteria:

• Participants not able or willing to give written informed consent
• GP trainees with significant participation in other studies that could impact / could be impacted by their taking part in this randomised pilot study
• GP trainees who do not have the support of their trainer to participate in the study
• GP trainers who do not wish for their trainee to be involved with the study
• Pharmacists who do not have the required experience (ideally at least 6-month) of working in general practice in England
• Pharmacists who are not trained in delivering the REVISiT intervention or on GCP as part of this study

Only named researchers in the study team will have access to individual participant data - and only if necessary for the completion of the study

Researchers responsible for analysis of error rate and rate of suboptimal prescribing will not know which arm the results have come from