Intravesical Bacillus Calmette‐Guérin Treatment for Superficial Bladder Tumours

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Abstract
Summary— Intravesical instillations of Tokyo 172 strain BCG were given to 56 patients with superficial bladder cancer during the 24‐month period after transurethral tumour resection as a prophylaxis against tumour recurrence. The recurrence rate of tumours was compared with that of historical controls. Results were estimated by the person‐years method and there were statistically significant decreases in recurrent tumours following BCG therapy.Our results suggest that the intravesical Tokyo 172 strain BCG is effective and safe as a prophylaxis against the recurrence of superficial bladder tumours.