Proxy Decision-Making for Clinical Research in Nursing Home Residents with Dementia: A Qualitative Analysis

Objectives: The benefit-risk ratio of many interventions remains unclear in older adults with dementia. Efforts for more representative trial inclusion are made; however, recruiting and particularly gaining informed consent remains complex. For research participation, dementia compels the designation of a legal guardian (LG) to give proxy consent. To advance future trial development, we aimed to provide more insights into the factors that affect the proxy decision-making process in dementia research. Design: A qualitative analysis of semi-structured interviews about proxy decision-making on participation in dementia research. Setting and Participants: LGs of nursing home residents that gave (n = 19) and refrained from giving (n = 18) proxy consent for a clinical trial (the Danton study) in the Netherlands. Methods: Verbatim transcripts were thematically analyzed by using a preliminary deductive framework with room for induction of additional emerging themes, being an overall abductive approach. Based on that theme list, related factors of the decision-making process were grouped into overarching levels and merged into a step-by-step process. Results: When discussing proxy decision-making on the participation of an older adult with dementia in a clinical trial, LGs described interconnected factors on the level of the study and patient. Past experiences and attitudes of the LG influenced the weighing of these study- and patient-related factors, leading to a preliminary decision. Other proxies and treating health care professionals (HCPs) were named as important other stakeholders of the decision-making process. Conclusions and Implications: When giving proxy consent for research participation, LGs weigh study- and patient-related factors, leading to an initial benefit-risk evaluation. This weighing process is influenced by LG-related factors and can be modulated by other proxies or treating HCPs, leading to a definitive decision. Although insights into these underlying mechanisms could facilitate the proxy decision-making process for both LGs and researchers, treating HCPs could act as an independent party. (c) 2023 The Authors. Published by Elsevier Inc. on behalf of AMDA - The Society for Post-Acute and Long-Term Care Medicine. This is an open access article under the CC BY license (http:// creativecommons.org/licenses/by/4.0/).