Anticancer treatment and cognitive functions in elderly cancer patients: A prospective study

Abstract

8543 Background: It has been reported that anticancer treatment may alterate cognitive functions in cancer patients but very few prospective studied addressed this issue. Moreover, little is known about the cognitive impact of anticancer treatment in elderly cancer patients. We aimed at investigating the effect on cognitive functions of antiblastic chemotherapy and endocrine therapy in a consecutive series of elderly cancer outpatients. Methods: We evaluated cognitive functions by means of the Cambridge Cognitive Examination (CAMCOG) test and the Mini-Mental Scale Examination (MMSE) at baseline (before anticancer systemic treatment), after 3 months and after 6 months in cancer patients aged more than 65 years. Mood disturbances such as anxiety and depression were also evaluated (Hospital Anxiety and Depression Scale); comprehensive geriatric assessment and blood tests were performed at each evaluation. Results: Sixty patients were enrolled, 15 patients received chemotherapy (group 1), 13 patients received endocrine therapy (group 2) and 32 patients had neither chemotherapy nor endocrine therapy (group 3, control). Fifty-eight (97%) patients had no evidence of disease at the time of assessment. Median age was 71.5, 73 and 71 years in group 1, 2 and 3, respectively. At baseline, median Activities of Daily Living (ADL) score, Instrumental Activity of Daily Living (IADL) score, number of comorbidities and concomitant medications were 6, 8, 5, 1 in group 1, and 6, 8, 3, 2 in group 2, and 6, 8, 4, 2 in group 3, respectively. Median hemoglobin value was 12.9, 12.8, 13.3 g/dl in group 1, 2 and 3 respectively. At baseline, no significant unbalance was evident among groups. There was a statistically significant correlation between ADL or IADL score and CAMCOG total score (Spearman test, rho=0.4, p<0.05). Higher scolarity level was associated with higher CAMCOG total score. No deterioration of CAMCOG score was evident in group 1, 2 and 3 after 3 and 6 months (paired t-test p>.05); the separate analyses for the different items in CAMCOG test did not evidence any deterioration in time in the 3 groups. No worsening was seen in MMSE. Conclusions: Our study showed that anticancer treatment is not associated with rapid cognitive deterioration in elderly cancer patients. No significant financial relationships to disclose.