BackgroundMaintenance of low serum urate levels is important for the management of gout. Achieving the recommended serum urate levels of less than 6.0 mg/dL is difficult in elderly (65 years of age or older) patients with renal impairment. Xanthine oxidase inhibitors allopurinol and febuxostat are used for this purpose. Although febuxostat had been shown to be efficacious in elderly patients, its safety and efficacy in elderly female patients with hyperuricemia remain unclear.ObjectiveThe aim of this study was to assess the efficacy and safety of febuxostat in elderly female patients.MethodsWe studied a retrospective cohort study. The study included elderly Japanese patients (65 years of age or older) who were treated with febuxostat at Fujita Health University Hospital from January 2012 to December 2013. The treatment goal was defined as achievement of serum urate levels of 6.0 mg/dL or lower within 16 weeks; this was the primary endpoint in the present study. Adverse events of febuxostat were defined as more than twofold increases in Common Terminology Criteria for adverse events scores from baseline.ResultsWe evaluated 82 patients treated with febuxostat during the observation period and classified them into male (n=53) and female (n=29) groups. The mean time to achievement of the treatment goal was significantly shorter in the female group (53 days) than in the male group (71 days). There were no significant differences in adverse events between the 2 groups.ConclusionOur findings suggest that the efficacy of febuxostat in elderly female patients is superior to that in elderly male patients and that the safety is equivalent.
Background and Aims: Cisplatin-induced nephrotoxicity primarily occurs in the proximal tubules, and tubular injuries reduce glomerular filtration rates. Lower blood pressure causes renal hypoperfusion, which promotes ischemic acute kidney injury (AKI). Our study examined the relationship between lower blood pressure-induced renal hypoperfusion and cisplatin-induced nephrotoxicity. Methods: The relationship between cisplatin use and hypoalbuminemia is not clear. This study consisted of Japanese patients who received cisplatin as the first-line chemotherapy at Fujita Health University Hospital from April 2006 to December 2012. Hypoalbuminemia was defined as serum albumin levels ≤3.5 mg/dl. Results: Patients who experienced lower blood pressure during chemotherapy were included in the lower blood pressure group (n = 229), and those who did not were included in the normal blood pressure group (n = 743). Total cisplatin dose in the normal blood pressure and lower blood pressure groups was 58.9 ± 23.8 and 55.0 ± 20.4 mg/m2, respectively. The rate of severe nephrotoxicity was higher and overall survival was shorter in the lower blood pressure group than in the normal blood pressure group. In a multivariable analysis, lower blood pressure significantly correlated with hypoalbuminemia. Conclusions: To prevent ischemic AKI, nutrition and cachexia controlling are important parts of cancer treatment.
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