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An Implantable Microstimulator for the Chronic Treatment of Refractory Urinary Urge Incontinence

Battery Powered Bion Clinical Investigation: An Implantable Microstimulator for the Chronic Treatment of Refractory Urinary Urge Incontinence

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00080470
Enrollment
148
Registered
2004-04-05
Start date
2003-06-30
Completion date
2012-12-31
Last updated
2013-11-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Urinary Incontinence

Keywords

Incontinence, Refractory, Urinary, Urge, Stimulation, Nerve, Microstimulator, Neuromodulation

Brief summary

This clinical trial is being conducted to investigate the safety and effectiveness of a new device designed to treat urinary urge incontinence in those patients who have tried and failed two or more conservative therapies.

Interventions

DEVICEbion

battery powered microstimulator

Sponsors

Boston Scientific Corporation
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Key Inclusion Criteria: 1. Age 18 years and above. 2. Diagnosed with urinary urge incontinence. 3. Have no reported history of urethral obstruction/stricture, bladder calculi or bladder tumor. 4. Have normal upper urinary tract function. 5. Be capable of giving informed consent. 6. Be capable and willing to follow all study related procedures. Key

Exclusion criteria

1. Have any active implantable device regardless of whether stimulation status is ON or OFF. 2. Are pregnant as confirmed by a urine pregnancy test or plan to become pregnant during the following 12 months period. 3. Less than one year post partum and/or are breast-feeding. 4. Have any passive implant that contains metal or electrically conductive materials. 5. Have conditions requiring Magnetic Resonance Imaging (MRI) evaluation. 6. Have conditions requiring diathermy procedures. 7. Have an inability to operate the bion Remote Control and bion Recharging System either by self or caregiver. 8. Have diabetes with peripheral nerve involvement or have severe uncontrolled diabetes. 9. Have history of coagulopathy or bleeding disorder. 10. Have a history of pelvic pain as primary diagnosis. 11. Have anatomical restrictions such that the study device placement is not possible. 12. Are currently participating or have participated within the past 30 days in any clinical investigation involving or impacting urinary or renal function. 13. Have a life expectancy of less than 1 year. 14. Cannot independently comprehend and complete the QoL questionnaires.

Design outcomes

Primary

MeasureTime frame
Number of Leaks Per Day12 months
Freedom From Major Complications5 years

Countries

United States

Participant flow

Pre-assignment details

Although enrollment numbers totaled 148 subjects, the total number of implanted subjects were used for the analysis. Total number of implanted subjects is 87.

Participants by arm

ArmCount
Control
No stimulation until 45 days post-implant. Stimulation On from 45 days post-implant and on.
42
Treatment
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.
45
Total87

Baseline characteristics

CharacteristicControlTreatmentTotal
Age, Customized59.26 Years
STANDARD_DEVIATION 12.66
54.82 Years
STANDARD_DEVIATION 16.73
56.97 Years
STANDARD_DEVIATION 14.99
Sex: Female, Male
Female
41 Participants40 Participants81 Participants
Sex: Female, Male
Male
1 Participants5 Participants6 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
35 / 4232 / 45
serious
Total, serious adverse events
0 / 420 / 45

Outcome results

Primary

Freedom From Major Complications

Time frame: 5 years

ArmMeasureValue (NUMBER)
TreatmentFreedom From Major Complications0 Number of Adverse Events
ControlFreedom From Major Complications0 Number of Adverse Events
Primary

Number of Leaks Per Day

Time frame: 12 months

ArmMeasureValue (MEAN)
TreatmentNumber of Leaks Per DayNA Number of Leaks Per Day
ControlNumber of Leaks Per DayNA Number of Leaks Per Day

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026