Background:Frailty is a syndrome associated with increased vulnerability and an important predictor of outcomes in older cancer patients. Systematic assessments to identify frailty are seldom applied, and oncologists’ ability to identify frailty is scarcely investigated.Methods:We compared oncologists’ classification of frailty (onc-frail) based on clinical judgement with a modified geriatric assessment (mGA), and investigated associations between frailty and overall survival. Patients ⩾70 years referred for medical cancer treatment were eligible. mGA-frailty was defined as impairment in at least one of the following: daily activities, comorbidity, polypharmacy, physical function or at least one geriatric syndrome (cognitive impairment, depression, malnutrition, falls).Results:Three hundred and seven patients were enroled, 288 (94%) completed the mGA, 286 (93%) were rated by oncologists. Median age was 77 years, 56% had metastases, 85% performance status (PS) 0–1. Overall, 104/286 (36%) were onc-frail and 140/288 (49%) mGA-frail, the agreement was fair (kappa value 0.30 (95% CI 0.19; 0.41)), and 67 mGA-frail patients who frequently had localised disease, good PS and received curative treatment, were missed by the oncologists. Only mGA-frailty was independently prognostic for survival (HR 1.61, 95% CI 1.14; 2.27; P=0.007).Conclusions:Systematic assessment of geriatric domains is needed to aid oncologists in identifying frail patients with poor survival.

Background: Maintaining physical function and quality of life (QoL) are prioritized outcomes among older adults. We aimed to identify potentially modifiable factors affecting older patients' physical function and QoL during cancer treatment. Methods: Prospective, multicenter study of 307 patients with cancer ≥70 years, referred for systemic treatment. Pre-treatment, a modified geriatric assessment (mGA) was performed, including registration of comorbidities, medications, nutritional status, cognitive function, depressive symptoms (Geriatric Depression Scale-15 [GDS]), and mobility (Timed Up and Go [TUG]). Patient-reported physical function (PF)-, global QoL-, and symptom scores were assessed at baseline, two, four, and six months by the EORTC Quality of Life Core Questionnaire-C30. The impact of mGA components and symptoms on patients' PF and global QoL scores during six months was investigated by linear mixed models. To identify groups following distinct PF trajectories, a growth mixture model was estimated. Results: 288 patients were eligible, mean age was 76.9 years, 68% received palliative treatment. Higher GDSscores and poorer TUG were independently associated with an overall level of poorer PF and global QoL throughout follow-up, as were more pain, dyspnea, and appetite loss, and sleep disturbance. Three groups with distinct PF trajectories were identified: a poor group exhibiting a non-linear statistically (p b .001) and clinically significant decline (≥10 points), an intermediate group with a statistically (p = .003), but not clinically significant linear decline, and a good group with a stable trajectory. Higher GDS-scores and poorer TUG, more pre-treatment pain and dyspnea were associated with higher odds of belonging to the poor compared to the good PF group. Conclusion: Depressive symptoms, reduced mobility, and more physical symptoms increased the risk of decrements in older patients' PF and global QoL scores during cancer treatment, and represent potential targets for interventions aiming at improving these outcomes.

Background: Maintaining quality of life including physical functioning is highly prioritized among older cancer patients. Geriatric assessment is a recommended approach to identify patients with increased vulnerability to stressors (frailty). How frailty affects quality of life and physical functioning in older cancer patients has scarcely been investigated. Aim: Focusing on physical functioning and global quality of life, we investigated whether frailty identified by a geriatric assessment was associated with higher risk of quality-of-life deterioration during cancer treatment and follow-up. Design: Prospective, observational study. Patients were classified as frail or non-frail by a modified geriatric assessment. Quality of life was measured using the European Organization for Research and Treatment of Cancer Core Quality-of-Life Questionnaire at inclusion, 2, 4, 6 and 12 months. Setting: Eight Norwegian outpatient cancer clinics. Participants: Patients ⩾70 years with solid tumours referred for palliative or curative systemic medical cancer treatment. Results: Among 288 patients included, 140 (49%) were frail and 148 (51%) non-frail. Frail patients consistently reported poorer scores on all functioning and symptom scales. Independent of age, gender and major cancer-related factors, frail patients had significantly poorer physical functioning and global quality of life during follow-up, and opposed to non-frail patients they had both a clinically and statistically significant decline in physical functioning from baseline until 12 months. Conclusions: Geriatric assessment identifies frail patients with increased risk of physical decline, poor functioning and high symptom burden during and following cancer treatment. Frail patients should therefore receive early supportive or palliative care.