AIMS: To verify the efficacy, safety and tolerability of intravesical administration of 0.1% oxybutynin hydrochloride compared to its oral administration for treatment of neurogenic detrusor overactivity (NDO) in a randomized, prospective, controlled, open-label, multi-center trial in 35 adult patients.
METHODS: NDO was confirmed within the previous 24 months by urodynamic studies (UDS). Group 1 (n = 18) received 10 ml 0.1% oxybutynin hydrochloride intravesically three times per day and group 2 (n = 17) 5 mg oxybutynin hydrochloride orally three times per day for a period of 28 days. Primary efficacy criterion was the change in the maximum bladder capacity between the beginning of the study and after 4 weeks as assessed by UDS. Adverse drug reactions (ADR) were collected and an evaluation of anticholinergic effects was conducted.
RESULTS: The increase in maximum bladder capacity was 117 ml with intravesical application (P = 0.0002) versus 18 ml with the oral application (P = 0.51). The difference was statistically significant (P = 0.0086). ADR were reported by 10 (55.6%) of patients with intravesical administration, and by 14 (82.4%) of patients with oral administration. Significant differences in favor of the intravesical application were observed in ADR affecting vision (1/10 vs. 9/14), gastrointestinal tract (8/10 vs. 14/14), nervous system (2/10 vs. 8/14), and skin and subcutis (1/10 vs. 6/14). No serious adverse drug reactions were reported.
CONCLUSIONS: This study demonstrates the efficacy and safety of intravesical 0.1% oxybutynin hydrochloride in the treatment of NDO with respect to the increase in maximum bladder capacity.
Written by:
Schröder A, Albrecht U, Schnitker J, Reitz A, Stein R. Are you the author?
Division of Pediatric Urology, Department of Urology, University Medical Center Mainz, Mainz, Germany.
Reference: Neurourol Urodyn. 2015 Mar 8. Epub ahead of print.
doi: 10.1002/nau.22755
PubMed Abstract
PMID: 25754454
This webpage is supported through an unrestricted educational grant from Bayer. Bayer is not involved in content development and the views expressed represent those of the patient and physician contributors.

