Transitions from the emergency department (ED) to home are high-risk periods for medication-related harm. Pharmacist-led interventions during this period may improve medication safety and care continuity, yet co-design approaches to develop such interventions remain underused. The aim of this study is to co-design a pharmacist-led transition of care programme for patients discharged from the ED.

This study will be conducted at a 371-bed secondary-care teaching hospital in Qatar and will follow two sequential phases using qualitative and participatory methods. Phase I will involve focus groups and semistructured interviews with key stakeholders (clinical pharmacists, physicians, nurses and patients or patient representatives). Phase II will consist of an intervention co-design workshop with decision makers (leaders, policymakers and representatives from Phase I). Participants will be recruited using purposive and snowball sampling. Interviews will be audio recorded and transcribed verbatim. Data will be analysed using an inductive-deductive approach, guided by the Theoretical Domains Framework, the Care Transitions Framework and the APEASE (Affordability, Practicability, Effectiveness/cost-effectiveness, Acceptability, Side-effects/safety, Equity) criteria for evaluation of intervention feasibility.

The anticipated outcome is a prototype intervention detailing target recipients, core components, workflow, implementation strategies and supporting tools. This prototype will be pilot-tested to assess feasibility and inform further refinement.

The study was approved by the Medical Research Centre of Hamad Medical Corporation-Qatar (MRC-01-24-699) and Qatar University Institutional Review Board (QU-IRB 009/2025-EM). Written informed consent will be obtained from all study participants prior to participation. Research findings will be disseminated through institutional stakeholder briefings, presentations at national and international scientific conferences and publication in peer-reviewed journals. Patient representatives will contribute throughout the intervention development process.