[Efficacy and Adverse Events of Low-Dose Intravesical BCG Therapy for Non-Muscle-Invasive Bladder Cancer].

We examined the efficacy and adverse effects of low-dose intravesical Bacillus Calmette-Guérin (BCG) therapy in patients with non-muscle-invasive bladder cancer. Patients who underwent intravesical BCG therapy (n＝176 ; 198 courses) at our hospital between April 2012 and December 2022 were enrolled. After assigning patients to either the low-dose or regular-dose (40 or 80 mg of BCG Tokyo 172 strain) groups, treatment efficacy and incidence of adverse events were compared.