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Introduction In the National University Cancer Institute, Singapore (NCIS), 2 pilot programs providing (i) surgical prehabilitation before cancer surgery and (ii) geriatric oncology support for older adults planned for chemotherapy and/or radiotherapy were merged to form the Geriatric Oncology Longitudinal End to eNd (GOLDEN) program in 2019 to support patients from the time of their cancer diagnosis, through their treatment process, to cancer survivorship. Methods and Materials Older adults aged ≥65 years were enrolled in either surgical prehabilitation, the geriatric medical oncology (GO) arm, or both. All patients undergo a geriatric assessment. We assessed if patients had a change in treatment plans based on GOLDEN recommendations, and the impact on patient related outcomes. Results There were 777 patients enrolled in the GOLDEN program over 2 years; 569 (73%) were enrolled in surgical prehabilitation, 308 (40%) were enrolled in the GO arm, with 100 (12.8%) enrolled in both. 56.9% were females. Median age was 73. Lower gastrointestinal (51.2%) and hepatobiliary cancers (24.1%) were the most common cancer types. 43.4% were pre-frail and 11.7% were frail. Of the 308 patients in the GO arm, 86.0% had geriatric syndromes, while 60.7% had a change in their treatment plans based on GOLDEN recommendations. 31.5% reported an improved global health status, while 38.3% maintained their global health status. 226 (73%) responded that they had benefited from the GOLDEN. Conclusion More than half of the population was either pre-frail or frail. Amongst those in the GO arm, the majority had geriatric syndromes and had a change in their treatment plans based on GOLDEN recommendations. Majority reported either improvement or maintenance in global health status, with most feeling they have benefited from the program. Further evaluation of the longitudinal geriatric hematology-oncology program for cancer-related outcomes and sustainability should be carried out.

e24029 Background: The Geriatric 8 (G8) questionnaire has been validated predominantly in Western populations as a screening tool to identify vulnerable older adults with cancer who would benefit from comprehensive geriatric assessment (CGA). Given the paucity of evidence of the performance of this tool in a multi-ethnic Asian population, there is a need to determine whether the established cut-off score of 14 should be adjusted for improved performance in this population of older adults. Methods: Prospective cross-sectional study was done in older adults aged ≥ 65 years in the outpatient setting of an academic tertiary cancer center, the National University Cancer Institute, Singapore (NCIS). G8 questionnaire and CGA were conducted for eligible patients. The performance of the G8 screening tool in identifying patients who would benefit from a CGA was evaluated using receiver operating characteristic (ROC) curve analysis: area under the curve (AUC), sensitivity (Sn), and specificity (Sp). Results: 180 participants (mean age 74 years) were included in the study. 40.5% were female. 90% were Chinese, 7% were Malay, 2% were Indian. 57.8% were pre-frail and 12.8% were frail. The top five cancers in our study population were colorectal (30%), lung (25%), head and neck (12%), upper gastrointestinal (10%) and gynecological (7.0%). ROC analysis showed an AUC of 0.73 (95% CI 0.65 – 0.80) with an optimal cut-off score of 13 (Sn 71.7%, Sp 74.0%). Conclusions: G8 performed well in identifying older adults with cancer who would benefit from a CGA, in a multi-ethnic Asian population. In our cohort, we found that a slightly lower cut-off score of 13 performed better, and should be taken into consideration as part of daily oncology practice in Asia. Future research efforts should go into examining the biological aspects of frailty in this population.

55 Background: Prehabilitation in older patients aged ≥ 65 years undergoing cancer surgery and systemic therapy is crucial in reducing treatment complications and improving physical health, psychological well-being, quality of life (QOL) and cancer-related outcomes. However, a majority of older patients (80%) attending our Geriatric Oncology (GO) One-Stop clinic do not receive same day Comprehensive Geriatric Assessment (CGA)-directed Allied Health Interventions (AHI) for prehabilitation during their First Visit (FV). Objectives: The objective of this study is to increase the uptake of same day CGA-directed AHI for prehabilitation from 20% to 60% using telehealth. Methods: Older patients planned for an FV at the GO One-Stop clinic in an academic tertiary center, the National University Cancer Institute, Singapore (NCIS) were recruited. Our workflow was revised so that all FV patients underwent CGA via telehealth prior to the physical visit. Based on the preliminary CGA findings, a multidisciplinary geriatric oncology board planned for prehabilitation interventions which would be performed on the same day as the physical visit. Interim follow-up via telehealth by GO nurses helped to monitor patients for treatment-related toxicities and development of new geriatric syndromes. QOL was assessed during the FV and 3 months later. Results: Two hundred seventy-five patients were recruited from July 2020 to January 2022. 60% (n = 165) received prehabilitation interventions in the One-Stop clinic. The average time spent per visit was shortened from 4 hours to 2.5hours, but completed interventions on same day rose from 1 to 3. The proportion of patients who responded that they benefited from the program on the patient satisfactory survey remained high at 96%. 84.8% were satisfied with the hybrid telehealth model and 80.8% of them reported a maintained or improved QOL after being enrolled into the program. Conclusions: Adoption of telehealth for CGA is a feasible and effective method in improving prehabilitation interventions uptake for GO patients. GO hybrid model of care is a sustainable practice with no additional cost incurred.