The involvement of older adults as active partners in research is increasingly being promoted to improve the relevance and impact of scientific knowledge. However, the evidence base on how older adults have been involved as active partners in healthcare research remains fragmented. To our knowledge, no review of reviews has yet provided a comprehensive overview of this body of evidence. Therefore, this umbrella review aims to synthesise review-level evidence on the involvement of older adults as active research partners. We address three questions: (1) How have older adults been involved as active partners in research? (2) What terminology, models and frameworks have been used? (3) What benefits and challenges have been reported related to involving older adults as active partners in research?

This study will follow the Joanna Briggs Institute (JBI) methodology for umbrella reviews. A comprehensive search will be conducted in Medline, CINAHL, Scopus, PsycINFO, Sociological Abstracts and Web of Science. Eligible reviews will be those reporting on the involvement of older adults (aged 60 years or older) as active partners in research. Two reviewers will independently screen titles, abstracts and full texts and perform data extraction using a standardised form. Methodological quality will be assessed using the JBI Critical Appraisal Checklist for Systematic Reviews. Findings will be synthesised narratively and thematically, with attention to reported roles, terminology, conceptual frameworks and the benefits and challenges of involvement.

As this umbrella review draws exclusively on secondary data from published sources, ethical approval is not required. Older adults, engaged as independent public contributors, have been involved in shaping the review protocol and will take part in interpreting the findings. Results will be disseminated through a peer-reviewed journal and presentations at academic and stakeholder conferences, and used to inform the design of a subsequent mixed-methods study focused on strengthening the involvement of older adults as active partners in research.

CRD420251064947.

Sleep is a biological necessity with vital effects on all tissues and organs of the body. Preoperative sleep disturbance is associated with increased postoperative pain intensity and opioid consumption. Given that insomnia is a potentially modifiable risk factor, interventions targeting sleep prior to surgery may improve postoperative pain control and enhance key outcomes of recovery.

Promoting Sleep to Alleviate Pain-Arthroplasty (PROSAP-A) is a randomised, parallel group, two arm, controlled trial evaluating the effects of preoperative sleep-promotion on postoperative pain control, brain health and physical recovery. The main objective is to investigate whether preoperative insomnia treatment in patients scheduled to undergo total knee arthroplasty (TKA) or total hip arthroplasty (THA) may improve acute postoperative pain control. 100 adults with insomnia disorder (Insomnia Severity Index score >10 and confirmed Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition criteria for persistent insomnia disorder), scheduled to undergo primary TKA or THA, will be randomised to preoperative cognitive behavioural therapy for insomnia (CBT-I) or an active comparator control intervention, sleep education therapy (SET). Both interventions will be delivered over 4 weeks in hybrid format through a digital self-guided platform in combination with weekly telehealth video sessions with a psychologist (CBT-I) or research nurse (SET). A video-assisted booster session will be provided 1–2 weeks postoperatively. The primary outcome measure is acute postoperative pain intensity, averaged over the first 7 postoperative days (POD). Secondary outcome measures include long-term postoperative pain control, changes in quantitative sensory testing variables (eg, temporal summation, conditioned pain modulation), sleep, cognition (eg, attention, memory, processing speed, executive function), mental health, health-related function, physical activity, quality of life and blood biomarkers. Participants will undergo on-site evaluation preoperative (preintervention and postintervention) and 6 months postoperative. Additional remote assessments will take place during POD1–7, 3 and 12 months postoperative.

The Swedish Ethical Review Authority has approved the PROSAP-A trial protocol. Results will be published in international peer-reviewed journals and summaries will be provided to funders and participants of the trial.

NCT06145516.