Implantable nerve stimulator shows promise for bladder control
NCT ID NCT05250908
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests a small implant called INTIBIA that stimulates a nerve in the leg to help control sudden, strong urges to urinate. About 208 adults with overactive bladder and frequent leaking episodes will receive the implant. The goal is to see if it safely reduces leaking by at least half compared to a non-working device.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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208 people
The number who actually took part.
- Started
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Mar 2022
- Expected to finish
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Jun 2026
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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22 to 80 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Women or men 22-80 years of age * Symptoms of overactive bladder with urgency urinary incontinence (UUI) demonstrated on a 72-hour voiding diary defined as a minimum of four (4) leaking episodes associated with urgency, and at least one leaking episode each 24-hour period * Greater than or equal to 6-month history of UUI diagnosis * Failure of conservative or behavioral therapy (e.g., bladder diet, timed voiding, bladder training, bladder control strategies, pelvic floor muscle training, fluid management) * Willing to abstain from OAB medications for the duration of the study * Willing to maintain a stable dose of all other medications that affect bladder function (e.g., tricyclic antidepressants) for at least four (4) weeks prior to beginning the baseline voiding diary and baseline questionnaires * Ambulatory and able to use the toilet independently and without difficulty * Willing and capable of providing informed consent * Willing and able to complete all procedures and follow-up visits indicated in the protocol Exclusion Criteria: * Diagnosis of stress urinary incontinence or mixed urinary incontinence, as confirmed by cough stress test and with a response of Yes to Q3 on the UDI-6 questionnaire * Current symptomatic urinary tract infection (UTI), urethritis, or more than three (3) UTIs in past year * Have post-void residual urine volume \>30% of total voided volume * Inadequate skin integrity, any evidence of an infection, or lower leg edema limiting placement of device per physician discretion * Evidence of anatomic abnormalities that could jeopardize the placement of the device or pose a hazard to the subject * Prior treatment of urinary symptoms with nerve stimulation (e.g., percutaneous tibial nerve stimulation \[PTNS\] or sacral nerve stimulation \[SNS\]) * History of chronic pain (e.g., chronic pelvic pain, fibromyalgia, Lyme disease, chronic back pain) * An active implantable electronic device regardless of whether stimulation is ON or OFF * Treatment of urinary symptoms with botulinum toxin therapy within six (6) months * Any neurological condition that could interfere with normal bladder or tibial nerve function, including debilitating stroke, epilepsy, multiple sclerosis, Parkinson's disease, peripheral neuropathy, fibromyalgia, or spinal cord injury (e.g., paraplegia) * Current urinary tract mechanical obstruction (e.g., benign prostatic enlargement or urethral stricture) * Other urinary tract dysfunction (e.g., abnormal upper urinary tract function, vesicoureteral reflux, bladder stone or tumor, urinary fistula) * End stage renal failure, GFR \< 35, or dialysis * History of pelvic cancer requiring radiation or chemotherapy treatment within the past two years * Pelvic organ prolapse at or beyond the hymenal ring * Interstitial cystitis or bladder pain syndrome as defined by either American Urological Association (AUA) or European Association of Urology (EAU) guidelines prior to INTIBIA implant date * Diabetes with peripheral nerve compromise or uncontrolled diabetes * Pregnant as confirmed by urine or serum pregnancy test, plans to become pregnant over the study period, is less than one-year post-partum, is breast-feeding * Current active or a chronic systemic infection * Condition requiring magnetic resonance imaging (MRI) of lower leg * Condition requiring diathermy * Allergy to polyethylene terephthalate, silicone rubber, platinum, iridium, or polyurethane * Allergy to local anesthetic or adhesives * Deemed unsuitable for enrollment by the investigator based on history or physical examination (e.g., bleeding disorders, current anticoagulant medications) * Enrolled in another investigational or interventional device or drug trial over the study period
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Advanced Urogynecology of Michigan
Dearborn, Michigan, 48124, United States
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Advanced Urology Associates
Daytona Beach, Florida, 32114, United States
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Atlantic Health System - AMG Urology (Garden State Urology)
Denville, New Jersey, 07834, United States
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Baystate Medical Center
Springfield, Massachusetts, 01199, United States
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Bergman Clinics, Women's Health, Department of Gynecology
Amsterdam, 1081 GG, Netherlands
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Cedars-Sinai Medical Group
Beverly Hills, California, 90211, United States
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Cypress Medical Research Center, LLC
Wichita, Kansas, 67226, United States
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Houston Metro Urology
Houston, Texas, 77027, United States
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Isala Zwolle
Zwolle, 8025 AB, Netherlands
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MedStar Washington Hospital Center
Washington D.C., District of Columbia, 20010, United States
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MetroHealth System
Cleveland, Ohio, 44109, United States
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MidLantic Urology
Bala-Cynwyd, Pennsylvania, 19004, United States
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Rosemark WomenCare Specialists
Idaho Falls, Idaho, 83402, United States
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Southeastern Urogynecology & Pelvic Surgery
Moultrie, Georgia, 31768, United States
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Specialty Clinical Research of St. Louis
St Louis, Missouri, 63141, United States
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The Female Pelvic Health Center
Newtown, Pennsylvania, 18940, United States
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The Institute for Female Pelvic Medicine and Reconstructive Surgery- Axia Womens Health
Allentown, Pennsylvania, 18103, United States
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The Urology Group
Cincinnati, Ohio, 45212, United States
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Thomas Jefferson University
Philadelphia, Pennsylvania, 19107, United States
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University of Michigan
Ann Arbor, Michigan, 48109, United States
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Urology Group of Southern California
Los Angeles, California, 90017, United States
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Wake Forest University
Winston-Salem, North Carolina, 27103, United States
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