Local antiseptic therapy for non-gonococcal urethritis: phase II study with Instillagel.

Non-gonococcal urethritis (NGU) is conventionally treated with oral antibiotics. With this Phase II study, we investigated the action of a locally disinfecting substance, Instillagel, in symptomatic NGU. Instillation treatment was performed twice daily to 32 male patients with symptomatic NGU. To evaluate the therapeutic outcome, a smear was taken from the urethra and an urine examination was performed at baseline as well as at 5 and 8 days after the start of the treatment. Pain and micturition symptoms were determined by a questionnaire with analog scales taken before and after therapy. A pre/post comparison of the urethral smears of the patients with symptomatic NGU showed a significant difference (P < 0.0001). The microbial count in the urine did not show a significant difference. The symptoms micturition (P<0.0001) and pain in the urethra (P<0.0001) were significantly improved. This Phase II study confirmed that local antiseptic treatment of NGU can offer an alternative to systemic antibiotic treatment.