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PD02-05 efficacy and safety of vibegron as adjuvant treatment on refractory neurogenic bladder dysfunction in children with spina bifida

Kazuyuki Nishinaka, N. Masumori

Journal of Urology, 2022

19 participants

Abstract

INTRODUCTION AND OBJECTIVE: The aim of this study was to evaluate the efficacy and safety of vibegron with improved selectivity and metabolic stability in comparison with previously disclosed b3adrenoceptor agonists for treating antimuscarinic-resistant neurogenic bladder dysfunction in children with spina bifida. METHODS: In this retrospective study, 19 patients below 15 years of age, with antimuscarinic-resistant neurogenic bladder dysfunction due to spina bifida, underwent a video-urodynamic study before and during the prescription of vibegron. The dosage was 12.5, 25 or 50 mg once daily, based on age and body weight, for at least 12 weeks from January 2020 to July 2021, in addition to antimuscarinic therapy. The video-urodynamic study was conducted to evaluate bladder compliance, maximum cystometric bladder capacity, detrusor overactivity, detrusor leak point pressure, and vesicoureteral reflux. This was done subsequently prior to the beginning and after three months of vibegron administration. Patientreported efficacy and adverse events were measured. RESULTS: Treatment with vibegron add-on therapy drastically improved bladder compliance and maximum cystometric bladder capacity compared to treatment with antimuscarinic agents alone (6.2; IQR: 5.2e10.4 vs. 28.3; IQR: 22.7e50.7 mL/cmH2O, P < 0.0001; and 178; IQR: 135e235 vs. 450; IQR: 358e502 mL, P<0.0001, respectively). Bladder deformity in 12 patients improved after taking the drug (image 1: before taking vibegron and…

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