Renal & Urology News - July/August 20119 Issue

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J U L Y /A U G U S T 2 0 1 9

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VOLUME 18, ISSUE NUMBER 4

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www.renalandurologynews.com

Newer PCa Drugs Up Survival in mCSPC Investigators reported promising findings from phase 3 trials of apalutamide and enzalutamide NOVEL ANTI-ANDROGENS PROLONG LIFE IN mCSPC In separate phase 3 trials, men who received apalutamide (TITAN) and enzalutamide (ENZAMET) for metastatic castrationsensitive prostate cancer had significantly prolonged survival compared with men who received only standard treatment.

Apalutamide Enzalutamide Standard treatment

2-year survival

82.4%

73.5%

3-year survival

80%

72%

Sources: Davis ID et al. Enzalutamide with standard first-line therapy in metastatic prostate cancer. N Engl J Med. 2019; published online ahead of print June 2. Chi KN, et al. Apalutamide for metastatic, castration-sensitive prostate cancer. N Engl J Med. 2019; published online ahead of print May 31.

TITAN

ENZAMET

Fatal PCa Tied to Visceral Fat BY JODY A. CHARNOW GREATER VISCERAL AND thigh subcutaneous fat are associated with higher risks of advanced and fatal pros­ tate cancer (PCa), according to a new prospective study. In addition, visceral fat is associated with a higher risk of these outcomes among men with a lower body mass index (BMI). Investigators found no association between any adiposity mea­ sure and total or high­grade PCa. A team led by Barbra A. Dickerman, PhD, of the Harvard T.H. Chan School of Public Health in Boston, said that to their knowledge, their study is the first prospective investigation of directly measured fat distribution and the risk of advanced PCa. Dr Dickerman and

her colleagues studied 1832 Icelandic men in the Age, Gene/Environment Susceptibility­Reykjavik Study. All men underwent baseline computed tomography imaging of fat deposition, bioelectric impedance analysis, and measurement of BMI and waist circum­ ference. Through linkage with nation­ wide cancer registries, the investigators identified 172, 43, 41, and 31 new cases of total, high­grade, advanced, and fatal PCa, respectively, during follow­ up. The median follow­up time was 10.1 years until PCa diagnosis and 10.4 years until PCa death. Among all men, each 1 standard devia­ tion (SD) increase in visceral fat (85.7 cm2) and thigh subcutaneous fat (39.2 cm2) continued on page 7

BY JODY A. CHARNOW APALUTAMIDE OR enzalutamide added to standard treatment improves survival of patients with metastatic castration­sensitive prostate cancer (mCSPC), according to study find­ ings presented at the 2019 American Society of Clinical Oncology annual meeting in Chicago. The findings are from the phase 3 TITAN trial, which compared apalu­ tamide plus androgen deprivation ther­ apy (ADT) with ADT alone, and the phase 3 ENZAMET trial, which com­ pared enzalutamide plus standard of care (ADT with or without docetaxel) with standard of care alone. The findings from both trials were published in the New England Journal of Medicine (NEJM).

Statin Users Have Better RC Outcomes INVESTIGATORS WHO studied patients who underwent radical cys­ tectomy (RC) for bladder cancer found that statin use was associated with improved overall and disease­ specific survival compared with non­ use, according to a presentation at the Canadian Urological Association’s 74th Annual Meeting in Quebec City. The study, led by Armen G. Aprikian, MD, of McGill University Health Centre in Montreal, included 3087 patients with bladder cancer who underwent RC in Quebec from 2000 to 2014 and collected data from 2 years prior to RC to September 2016 or death. Of these patients, 1448 (46.9%) used statins. The median overall survival (OS) and disease­specific survival was 4.5 years and 10.7 years, respectively, for statin users and 2.5 years and 4.6 years for non­users. Compared with non­users, statin users had significant 17% and 19% decreased risks of all­cause and disease­specific continued on page 7

In the TITAN trial, men who received apalutamide plus ADT experienced a significant 52% decreased risk of death or radiographic progression compared with those who received placebo plus ADT, Kim N. Chi, MD, of BC Cancer and Vancouver Prostate Centre in Vancouver, British Columbia, and col­ leagues reported. The apalutamide­ treated patients also had a significant 33% decreased risk of death. Median radiographic progression­free survival (rPFS) was 22.1 months in the placebo arm and not reached in the apalu­ tamide group. Median overall survival was not reached in either study arm. In addition, apalutamide recipients had a significant 61% decreased risk continued on page 7

IN THIS ISSUE 2

Targeted prostate biopsy alone found suboptimal

4

Low albumin prior to ESRD ups post-dialysis mortality

10

Nocturia etiology in men does not differ by race

11

Study finds overuse of PICCs in patients with CKD

12

Neoadjuvant combo reduces high-risk PCa tumor volume

16

Intermediate-risk PCa active surveillance on the rise

17

Q&A: David F. Jarrard, MD, discusses CRPC drug therapy

Electronic algorithms are no substitute for individualized patient counseling. PAGE 19


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