Side-effects are commonly manifested during intravesical Bacillus Calmette-
Guerin (BCG) immunotherapy of superficial bladder cancer. This often causes
delays or interruptions of the instillations and consequently reduces the
efficacy of treatment. Treatment strategies aimed at reducing the side-effe
cts of BCG immunotherapy while maintaining efficacy are currently being con
sidered in the search for an optimal treatment regimen. The following two a
pproaches to BCG immunotherapy were investigated at the Department of Urolo
gy of Padova University by specific Phase II and ill trials designed to eva
luate the possibility of reducing BCG-related side-effects without compromi
sing therapeutic efficacy: (1) by reducing the dose of BCG per instillation
'low-dose' regimen, (2) by delaying the interval of the instillations 'slo
w-rate' regimen. Copyright (C) 2000 S. Karger AG, Basel.