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Evaluating the safety and potential activity of URO-902 (hMaxi-K) gene transfer by intravesical instillation or direct injection into the bladder wall in female participants with idiopathic (non-neurogenic) overactive bladder syndrome and detrusor overactivity from two double-blind, imbalanced, placebo-controlled randomized phase 1 trials.

ABSTRACT: AIMS:Two phase 1 trials were performed in healthy women with the overactive bladder (OAB) syndrome and urodynamically demonstrated detrusor overactivity (DO), with the aim to demonstrate the safety and potential efficacy of URO-902, which comprises a gene therapy plasmid vector expressing the human big potassium channel ? subunit. METHODS:ION-02 (intravesical instillation) and ION-03 (direct injection) were double-blind, placebo-controlled, multicenter studies without overlap in enrollment between studies. Active doses were administered and evaluated sequentially (lowest dose first) for safety. ION-02 participants received either 5000?µg or 10?000?µg URO-902, or placebo. ION-03 participants received either 16?000 or 24?000?µg URO-902, or placebo, injected directly into the bladder wall using cystoscopy. Primary outcome variables were safety parameters occurring subsequent to URO-902 administration; secondary efficacy variables also were evaluated. RESULTS:Among the safety outcomes, there were no dose-limiting toxicities or significant adverse events (AEs) preventing dose escalation during either trial, and no participants withdrew due to AEs. For efficacy, in ION-02 (N?=?21), involuntary detrusor contractions on urodynamics at 24 weeks in patients receiving URO-902 (P?

SUBMITTER: Rovner E

PROVIDER: S-EPMC7028015 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature

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Evaluating the safety and potential activity of URO-902 (hMaxi-K) gene transfer by intravesical instillation or direct injection into the bladder wall in female participants with idiopathic (non-neurogenic) overactive bladder syndrome and detrusor overactivity from two double-blind, imbalanced, placebo-controlled randomized phase 1 trials.

Rovner Eric E Chai Toby C TC Chai Toby C TC Jacobs Sharon S Christ George G Andersson Karl-Erik KE Efros Mitchell M Nitti Victor V Davies Kelvin K McCullough Andrew R AR Melman Arnold A

Neurourology and urodynamics 20200116 2

<h4>Aims</h4>Two phase 1 trials were performed in healthy women with the overactive bladder (OAB) syndrome and urodynamically demonstrated detrusor overactivity (DO), with the aim to demonstrate the safety and potential efficacy of URO-902, which comprises a gene therapy plasmid vector expressing the human big potassium channel α subunit.<h4>Methods</h4>ION-02 (intravesical instillation) and ION-03 (direct injection) were double-blind, placebo-controlled, multicenter studies without overlap in e ...[more]

PMID: 31945197

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Project description:ObjectiveTo evaluate the effects of onabotulinumtoxinA on patient-reported outcomes including health-related quality of life (HRQOL), treatment satisfaction, and treatment goal attainment in patients with urinary incontinence (UI) due to neurogenic detrusor overactivity (NDO).MethodsIn this multicenter, double-blind, randomized, placebo-controlled, phase III, 52-week study (ClinicalTrials.gov NCT00311376), patients with UI due to NDO who were not adequately managed with anticholinergic therapy were treated with intradetrusor injections of onabotulinumtoxinA (200 or 300 U) or placebo (0.9% saline). HRQOL measures included the Incontinence Quality of Life (I-QOL) Questionnaire total score, and the 3 domain scores (avoidance and limiting behavior, psychosocial, and social embarrassment), the modified Overactive Bladder Patient Satisfaction with Treatment Questionnaire (OAB-PSTQ), and Patient Global Assessment. Assessments were made at baseline, posttreatment week 6 (primary time point), week 12, and at 12-week intervals.ResultsPatients (mean age of 46 years with 30.5 weekly UI episodes at baseline) were randomized to receive placebo (n = 149) or onabotulinumtoxinA (200 U [n = 135] or 300 U [n = 132]). At week 6, improvements from baseline in I-QOL Questionnaire total score were greater (p < 0.001) in both onabotulinumtoxinA-treated groups vs placebo. Responses to the OAB-PSTQ also demonstrated greater mean improvements from baseline (p < 0.001) in both onabotulinumtoxinA-treated groups vs placebo at week 6. Patients who received onabotulinumtoxinA also reported greater improvement in the Patient Global Assessment than those in the placebo group (p ≤ 0.001 vs placebo).ConclusionsPatients with UI due to NDO reported greater improvement in HRQOL and treatment satisfaction with onabotulinumtoxinA than with placebo consistently across several patient-reported outcome instruments.Classification of evidenceThis study provides Class I evidence that onabotulinumtoxinA intradetrusor injections (200 or 300 U) can improve quality of life measures in patients with NDO not adequately managed with anticholinergic therapy.

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