Because of their individual vulnerabilities, treatment decisions for older patients can be difficult. Geriatric assessment (GA) may help to select patients for systemic treatment, but its value is still unproven. Older cancer patients (≥65 years of age) with and without complex GA followed by discussion in the geriatric-oncologic conference, who had been treated in palliative intention with standard combination chemotherapy at the Evang. Kliniken Essen-Mitte, were retrospectively evaluated. All patients had been orally informed about the treatment options and had chosen chemotherapy beside supportive care. To reduce selection bias, the method of propensity-score matching was performed. Patient groups treated in the years 2011-2013 (without GA, group 1) and in the years 2014-2015 (with GA, group 2) were compared regarding different toxicity endpoints. The primary endpoint of the study was defined as numbers of patients with unplanned admission to the hospital or death during first-line chemotherapy and GA should reduce these events by 15%. Overall, 114 patients were evaluated in both groups. The median age was 74 years. Patients suffered from gastrointestinal carcinomas (47%), lung cancer (28%), breast cancer (12%), and other cancer types (3%). Consequently, most patients were treated with platinum-based (41%), fluoropyrimidine-based (35%), or anthracycline-based (13%) combination chemotherapy. In group 2, the events were numerically lower for all toxicity endpoints. The need for a premature stop of treatment was 54.4% in group 1 compared to 29.8% in group 2 (p < 0.01) and also the treatment-related mortality was significantly lower in group 2 (17.5% vs. 5.3%; p = 0.04). The primary endpoint, the rate of unplanned hospital admission, and death was 49.1% versus 35.1% (difference 14.0%), which did not reach the predefined border of 15%. There was a nonsignificant overall survival benefit in the group with GA (22.6 vs. 18.4 months). GA appears useful to better select older patients with advanced cancer for combination chemotherapy. The significant reduction of mortality during chemotherapy justifies the efforts and costs which need to be expended. To evaluate the effect of GA on overall survival, prospective trials are required.
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