Real-world implementation of geriatric assessment in cancer care among older adults: the role of implementation science frameworks

The evidence supporting geriatric assessment (GA) in cancer care is well established, and GA is recommended by the American Society of Clinical Oncology, the International Society of Geriatric Oncology, and other oncology bodies. However, effective implementation of GA remains inadequate. Using selected papers indexed in Medline from the most recent 18 months to July 2024, including two outstanding interest papers, this review aimed to describe enablers and barriers to GA implementation in oncology and contrasts implementation with and without an implementation science framework. Finally, we make recommendations on applying an implementation science framework to facilitate integrating GA in oncology. Implementation science frameworks have been widely employed in health services research, but their use in geriatric oncology, particularly to guide GA implementation and evaluation, is limited. Lack of time in busy practices coupled with workforce shortages adds to the challenges of GA implementation and adoption. A variety of screening and assessment tools such as the G8, electronic rapid fitness assessment, and Eastern Cooperative Oncology Group are often used in lieu of geriatrician review and to streamline GA. When effectively implemented in oncology, GA informs care and treatment decisions for improved outcomes. Despite the benefits for older adults, embedding GA into routine clinical practice is critical yet not common practice. The variety of available GA tools, logistics, and individual beliefs are some of the identified barriers to GA adoption in oncology. Enablers include organization readiness, adaptability, communication, and the use of multidisciplinary teams. Further research is needed to examine how implementation science frameworks could provide guidance and structure for successful GA implementation in oncology.