Nutritional program among patients with prostate cancer receiving androgen deprivation therapy (ADT).

Abstract

12072 Background: Treatment with ADT can lead to changes in body composition, including an increase in body fat and a decrease in muscle mass. To minimize the nutritional risks associated with ADT, a nutritional program was developed. Thus, this study sought to determine the benefit of this program among patients with prostate cancer receiving ADT. Methods: Patients were recruited in a cancer center located in Brasilia, Brazil. Patients were eligible if they were diagnosed with prostate cancer, and about to initiate treatment with ADT. They were assessed before starting ADT and at follow-up assessment (3 months). Based on their risk, patients were instructed to follow either a normocaloric (20-25 kcal/kg) or a hypocaloric (18-20 kcal/kg) diet, and both groups were required to consume a hyperproteic diet (1-1.2 g/kg), including the use of whey protein supplementation as needed. Outcomes measures included nutritional risk (Patient-Generated Subjective Global Assessment; PG-SGA), body composition (Medical software Lookin’Body120), and muscle strength (Jamar Hydraulic Hand Dynamometer). Descriptive statistics were generated, and paired T-test, Wilcoxon signed rank on paired samples and ANOVA-RM were used to evaluate changes in variables over time. Results: A total of 62 patients were included in this program. Participants had a median age of 75 years (range from 41-97) and were predominantly married (87%). A great proportion of patients (65%) were diagnosed with a stage IV disease. Notably, 23% were diagnosed with moderate to severe nutritional risk at baseline; 47% were overweight, 13% were obese and 14% were with sarcopenia. The nutritional program resulted in maintenance of total body weight (median 74.1 vs 75.6 kg, P=0.12), lean body weight (median 29.1 vs 29.4 kg, P=0.11), and muscle strength (median 30 vs 30 kg, P=0.62), while a statistically significant loss of body fat weight (median 22.0 vs 20 kg, P=0.003) was found over the 12-week period. Despite no change in the PG-SGA scores were noted overtime, the rate of sarcopenia has decreased (15% vs 13%, P=0.03) and the proportion of eutrophic patients has increased (18% vs 27%, P=0.001), as seen in the contingency table below. Conclusions: These findings suggest that this program may improve body composition and maintain muscle strength in men receiving treatment with ADT after only three months of intervention. Future studies should validate the benefit of this program in randomized trial with a longer follow-up assessment (6 and 12 months after treatment initiation). [Table: see text]