Introduction Geriatric oncology underscores the significance of assessing functional age in guiding medical decisions, endeavouring to delineate practical and efficacious methodologies for evaluating functionality, adapting therapeutic regimens and attenuating the risks of treatment-related deterioration.

Objectives and Methods In this prospective study, we aimed to delineate the characteristics of older patients presenting for their initial oncology appointment by using geriatric screening (G8 score) and comprehensive geriatric assessment (CGA), while also assessing the feasibility of these evaluations. Secondary objectives included comparing the initial Eastern Cooperative Oncology Group (ECOG) performance status and any deviations from standard therapeutic strategies against the identified frailty in geriatric assessment.

Results Most patients exhibited a G8 score ≤14 and underwent comprehensive geriatric assessment. While oncologists typically perceive patients’ general conditions, CGA enables a systematic assessment, providing a comprehensive characterisation of elderly patients to inform therapeutic decisions and address identified fragilities. The CGA highlighted vulnerabilities across all primary domains. Notably, even among patients with ECOG scores of 0 and 1, the application of G8 score and CGA revealed numerous fragilities. Consistent with existing literature, these scales offered additional insights beyond ECOG evaluation alone, suggesting their potential to guide therapeutic adaptations for this demographic.

Conclusion Ongoing research and continuous evaluation are imperative to refine and broaden the implementation of geriatric-focused interventions.