OBJECTIVES: To test the hypothesis that early androgen deprivation therapy (ADT) has no proven survival advantage in older men with biochemical recurrence (BCR) of prostate cancer (PCa), and it may contribute to geriatric frailty. METHODS: We conducted a case-control study of men aged 60+ years with BCR on ADT (n = 63) vs PCa survivors without recurrence (n = 71). Frailty prevalence, "obese" frailty, Short Physical Performance Battery (SPPB) scores, and falls were compared. An exploratory analysis of frailty biomarkers (C-reactive protein, erythrocyte sedimentation rate, hemoglobin, albumin, and total cholesterol) was performed. Summary statistics and univariate and multivariate regression analyses were conducted. RESULTS: More patients on ADT were obese (body mass index >30; 46.2% vs 20.6%; P = .03). There were no statistical differences in SPPB (P = .41) or frailty (P = .20). Using a proposed "obese" frailty criteria, 8.7% in ADT group were frail and 56.5% were "prefrail," compared with 2.9% and 48.8% of controls (P = .02). Falls in the last year were higher in the ADT group (14.3% vs 2.8%; P = .02). In analyses controlling for age, clinical characteristics, and comorbidities, the ADT group trended toward significance for "obese" frailty (P = .14) and falls (OR = 4.74, P = .11). Comorbidity significantly increased the likelihood of "obese" frailty (P = .01) and falls (OR 2.02, P = .01). CONCLUSIONS: Men with BCR on ADT are frailer using proposed modified "obese" frailty criteria. They may have lower performance status and more falls. A larger, prospective trial is necessary to establish a causal link between ADT use and progression of frailty and disability.
OBJECTIVES: To test the hypothesis that early androgen deprivation therapy (ADT) has no proven survival advantage in older men with biochemical recurrence (BCR) of prostate cancer (PCa), and it may contribute to geriatric frailty. METHODS: We conducted a case-control study of men aged 60+ years with BCR on ADT (n = 63) vs PCa survivors without recurrence (n = 71). Frailty prevalence, "obese" frailty, Short Physical Performance Battery (SPPB) scores, and falls were compared. An exploratory analysis of frailty biomarkers (C-reactive protein, erythrocyte sedimentation rate, hemoglobin, albumin, and total cholesterol) was performed. Summary statistics and univariate and multivariate regression analyses were conducted. RESULTS: More patients on ADT were obese (body mass index >30; 46.2% vs 20.6%; P = .03). There were no statistical differences in SPPB (P = .41) or frailty (P = .20). Using a proposed "obese" frailty criteria, 8.7% in ADT group were frail and 56.5% were "prefrail," compared with 2.9% and 48.8% of controls (P = .02). Falls in the last year were higher in the ADT group (14.3% vs 2.8%; P = .02). In analyses controlling for age, clinical characteristics, and comorbidities, the ADT group trended toward significance for "obese" frailty (P = .14) and falls (OR = 4.74, P = .11). Comorbidity significantly increased the likelihood of "obese" frailty (P = .01) and falls (OR 2.02, P = .01). CONCLUSIONS:Men with BCR on ADT are frailer using proposed modified "obese" frailty criteria. They may have lower performance status and more falls. A larger, prospective trial is necessary to establish a causal link between ADT use and progression of frailty and disability.
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