The approach to clinical medicine has evolved over the last 20 years to inc
orporate therapeutic strategies to prevent long-term negative outcomes rath
er than simply treat acute events. As a result, new treatment paradigms hav
e been developed in various disease areas. These paradigms arise from clini
cal trials that show a correlation between risk reduction and decreases in
painful, traumatic, or fatal events.
The field of urology has been relatively slow to adopt the concept of disea
se prevention. Several areas of clinical urology do employ prophylactic or
metaphylactic therapies, although these are generally for secondary prevent
ion after a primary event (e.g., secondary prevention of recurrent bladder
cancer or recurrent kidney stones). There is, however, growing interest in
the primary prevention of prostate cancer with a variety of interventions,
ranging from dietary modifications to selenium and finasteride.
Traditionally, clinical trials of agents for the treatment of symptomatic b
enign prostatic hyperplasia (BPH) have studied improvements in lower urinar
y tract symptoms, urinary flow rate, and reduction in prostate volume over
relatively short periods of 6 weeks to 1 year. More recently, with the avai
lability of long-term data from community-based studies of the natural hist
ory of BPH and placebo-controlled clinical trials, interest is shifting bey
ond short-term effects on symptoms to reducing the risk of long-term negati
ve outcomes and disease progression. This signals an important reorientatio
n of clinical investigation in BPH. (C) 2000, Elsevier Science Inc.