학술논문

Comparison of outcomes of different biopsy schedules among men on active surveillance for prostate cancer: An analysis of the G.A.P.3 global consortium database
Document Type
article
Source
The Prostate. 82(7)
Subject
Biomedical and Clinical Sciences
Clinical Sciences
Oncology and Carcinogenesis
Urologic Diseases
Aging
Prevention
Cancer
Prostate Cancer
Clinical Research
Biopsy
Disease Progression
Humans
Male
Neoplasm Grading
Prostate
Prostate-Specific Antigen
Prostatic Neoplasms
Watchful Waiting
active surveillance
biopsy schedule
prostate cancer
treatment
upgrading
Global Action Plan Active Surveillance Prostate Cancer [G.A.P.3] Consortium
Paediatrics and Reproductive Medicine
Oncology & Carcinogenesis
Clinical sciences
Oncology and carcinogenesis
Language
Abstract
BackgroundThe optimal interval for repeat biopsy during active surveillance (AS) for prostate cancer is yet to be defined. This study examined whether risk of upgrading (to grade group ≥ 2) or risk of converting to treatment varied according to intensity of repeat biopsy using data from the GAP3 consortium's global AS database.Materials and methodsIntensity of surveillance biopsy schedules was categorized according to centers' protocols: (a) Prostate Cancer Research International Active Surveillance project (PRIAS) protocols with biopsies at years 1, 4, and 7 (10 centers; 7532 men); (b) biennial biopsies, that is, every other year (8 centers; 4365 men); and (c) annual biopsy schedules (4 centers; 1602 men). Multivariable Cox regression was used to compare outcomes according to biopsy intensity.ResultsOut of the 13,508 eligible participants, 56% were managed according to PRIAS protocols (biopsies at years 1, 4, and 7), 32% via biennial biopsy, and 12% via annual biopsy. After adjusting for baseline characteristics, risk of converting to treatment was greater for those on annual compared with PRIAS biopsy schedules (hazard ratio [HR] = 1.66; 95% confidence interval [CI] = 1.51-1.83; p