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Platinum Priority – Editorial

Referring to the article published on pp. 534–541 of this issue

Active Surveillance: A Ten-year Journey

Peter C. Albertsen

*

Department of Surgery (Urology), University of Connecticut Health Center, Farmington, CT, USA

Before the advent of widespread testing for prostate-

specific antigen (PSA), few urologists were concerned about

the treatment of low-risk prostate cancer. Patients pre-

senting with bone pain and cachexia required antiandrogen

therapy to treat symptomatic metastatic disease. Men

found to have localized disease on rectal examination were

usually offered radiation or, occasionally, surgery. Men with

low-grade disease following transurethral resection usually

did very well without additional treatment.

In the early 1990s, PSA testing led to a dramatic increase

in the incidence of prostate cancer

[1] .

Initially, urologists

treated most of these cases, but by the end of the decade

there was growing recognition that prostate cancer inci-

dence rates far exceeded mortality rates. The publication

of the Prostate Cancer Prevention Trial in 2003 dramatized

the existence of a large pool of patients with low-grade

disease. Some 78% of the participants in the placebo group

with a positive prostate biopsy were found to have Gleason

3 + 3 disease or less

[2] .

Findings from the two large randomized screening trials,

the European Randomized Study on Prostate Cancer

Screening (ERSPC) and the US-based Prostate, Lung, Colon

and Ovary (PLCO), showed that PSA testing preferentially

finds low-risk disease

[3,4]

. Of the 72 891 men tested in the

core age group of the ERSPC trial, 9.6% were found to

have prostate cancer, of which 60% of cases were considered

to be of low risk. Results from the PLCO trial were

comparable. Of the 38 343 men tested, 9% were found to

have prostate cancer, of which 66% had Gleason 6 disease or

less. By the mid 2000s, low-risk prostate cancer was the

dominant stage at diagnosis.

Monitoring low-risk prostate cancer rather than imme-

diate intervention, however, is not a new concept. In

2004, Johansson et al

[5]

published results for a 20-yr

observational cohort study documenting the natural history

of untreated, localized prostate cancer. They concluded that

most prostate cancers diagnosed at an early stage have an

indolent course, although some may progress to active

disease beyond 15 yr of follow-up. We conducted a

retrospective population-based analysis of 767 men with

clinically localized prostate cancer in the state of Connecti-

cut, USA

[6]

. We also found that men with low-grade

prostate cancers had a minimal risk of dying from prostate

cancer during 20 yr of follow-up. These studies set

the stage for the concept of ‘‘active surveillance.’’ Since

many men with low-risk prostate cancer are unlikely to

experience disease progression, some prefer to be watched

rather than undergo immediate surgery and radiation with

the attendant risks of complications.

Centers offering active surveillance have developed

criteria defining low-risk prostate cancer that usually

restrict candidates to those with low-volume ( 25% of

cores) and low-grade (Gleason score 3 + 3) disease

[7] .

Several hundred men have been followed for more than

a decade. Unfortunately, clinicians offering active surveil-

lance have encountered a new problem: what is an

appropriate protocol and how long should a patient pursue

this strategy? How often do patients remain on a particular

protocol? This problem does not arise following surgery or

radiation. Patients undergoing definitive treatment are

usually followed with serial PSA measurement. A rising PSA

implies disease progression, and subsequent treatments are

offered. Monitoring men on an active surveillance protocol

is slightly more complex. PSA is often monitored several

times per year and men are often encouraged to undergo

repeat biopsies and imaging with pelvic magnetic reso-

nance imaging. Disease progression is not often easy to

identify. Some men are comfortable with this approach,

E U R O P E A N U R O L O G Y 7 2 ( 2 0 1 7 ) 5 4 2 – 5 4 3

available at

www.scienced irect.com

journal homepage:

www.europeanurology.com

DOI of original article:

http://dx.doi.org/10.1016/j.eururo.2016.10.031

.

* Department of Surgery (Urology), University of Connecticut Health Center, 263 Farmington Avenue, Farmington, CT 06030-3955, USA.

Tel. +1 860 6793676; Fax: +1 860 6791318.

E-mail address:

albertsen@uchc.edu

.

http://dx.doi.org/10.1016/j.eururo.2016.11.002

0302-2838/

#

2016 European Association of Urology. Published by Elsevier B.V. All rights reserved.