An Implantable Microstimulator for the Chronic Treatment of Urinary Urgency-Frequency Syndrome

Study Overview
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Brief Summary
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The goal of this study is to investigate the safety and effectiveness of a new implanted device designed to treat Urinary Urgency-Frequency Syndrome.

Official Title
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Battery Powered Bion Clinical Investigation: Bion - An Implantable Microstimulator for the Chronic Treatment of Refractory Urinary Urgency-Frequency Syndrome

Conditions
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Overactive Bladder

Intervention / Treatment
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* Device: bion


Participation Criteria
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Eligibility Criteria
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Key Inclusion criteria: Age 18 years and above. Diagnosed with urinary urgency-frequency syndrome. Have no reported history of urethral obstruction/stricture, bladder calculi or bladder tumor. Have normal upper urinary tract function. Be capable of giving informed consent. Be capable and willing to follow all study related procedures. Key Exclusion Criteria: Have any active implantable device regardless of whether stimulation status is ON or OFF. Are pregnant as confirmed by a urine pregnancy test or plan to become pregnant during the following 12 month period. Less than one year post partum and/or are breast-feeding. Have any large passive implant that contains metal located within 30 cm of the chair pad while seated (e.g., hip replacement). Have conditions requiring magnetic resonance imaging (MRI) evaluation. Have conditions requiring diathermy procedures. Have an inability to operate the bion Remote Control and bion Recharging System either by self or caregiver. Have diabetes with peripheral nerve involvement or have severe uncontrolled diabetes. Have history of coagulopathy or bleeding disorder. Have pelvic pain in the absence of voiding dysfunction. Have anatomical restrictions such that the study device placement is not possible. Are currently participating or have participated within the past 30 days in any clinical investigation involving or impacting urinary or renal function. Cannot independently comprehend and complete the questionnaires.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: 1<br>Stimulation On from Initial Activation up to the 12 month post-activation. Stimulation Off from 12 months post-activation until 45 days after the 12 month visit. Stimulation On from 45 days post 12 month visit and on. | Device: bion<br>* battery powered bion microstimulator<br>|
| Sham Comparator: 2<br>No stimulation until 45 days post-implant. Stimulation On from 45 days post-implant and on. | Device: bion<br>* battery powered bion microstimulator<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Average Number of Voids Per Day |  | 12 months | 
| Freedom From Major Complications |  | 5 years | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Urgency-Frequency, Syndrome, Urinary, Refractory, Stimulation, Nerve, Neuromodulation, Microstimulator, bion, Pudendal, Overactive bladder