Neuspera's Implantable Sacral Nerve Stimulation System in Patients With Symptoms of Urinary Urgency Incontinence (UUI)

NCT ID: NCT04232696

Last Updated: 2025-11-03

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

NA

Total Enrollment

331 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-12-13

Study Completion Date

2026-12-31

Brief Summary

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Prospective, multi-center, single-arm, seamless phase-pivotal study conducted in participants diagnosed with UUI who have failed or could not tolerate more conservative treatment. The trial will be conducted in two phases.

Objective of Phase I: To assess the utilization of the system during the Sacral Nerve Stimulation (SNS) trial period and to help inform the length of hours of daily stimulation to be used in Phase II of the trial.

Objective of Phase II: To assess the safety and efficacy of the Neuspera SNS System at 6-months for the primary efficacy endpoint and at 12 months for secondary safety and efficacy endpoints.

Detailed Description

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Neuspera's Implantable Sacral Nerve Stimulation (SNS) System is indicated to treat participants with UUI who have failed or could not tolerate more conservative treatments.

The study will be conducted in two phases: Phase I of the study will be conducted at up to 9 clinical study sites in the US and Europe. Phase II of the study will be conducted in up to 35 clinical sites in the US and Europe, inclusive of the Phase I centers.

Prospective, multi-center, single-arm, seamless phase-pivotal study. Objective of Phase I: To assess the utilization of the system during the Sacral Nerve Stimulation (SNS) trial period and to help inform the length of hours of daily stimulation to be used in Phase II of the trial.

Objective of Phase II: To assess the safety and efficacy of the Neuspera SNS System at 6-months for the primary efficacy endpoint and at 12 months for secondary safety and efficacy endpoints. All participants will receive the same length of device stimulation as determined in Phase I testing.

Phase I will enroll up to 55 participants. Phase II will enroll up to 255 participants.

Conditions

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Urinary Urgency Incontinence

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Prospective, seamless two-phased pivotal study design. Phase I is designed to assess the initial feasibility of Neuspera's Implantable SNS System and to determine optimal daily stimulation parameters for Phase II. The data from Phase I informed the duration of daily stimulation and was applied in Phase II, which aims to evaluate the safety and efficacy of the system. Phase I and Phase II involve distinct patient populations with no overlap.

Phase I enrolled 89 subjects and Phase II enrolled 242 subjects.
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Neuspera Implantable Sacral Nerve Stimulation System

Implantation of the stimulator.

Group Type EXPERIMENTAL

Neuspera Implantable Sacral Nerve Stimulation System

Intervention Type DEVICE

Stimulation of the Sacral Nerve.

Interventions

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Neuspera Implantable Sacral Nerve Stimulation System

Stimulation of the Sacral Nerve.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

1. Has a Body Mass Index (BMI) between 18 and 40.
2. Has a diagnosis of UUI for greater than or equal to 6 months prior to the screening baseline visit date.
3. Has failed or was not a candidate for more conservative treatment (e.g. pelvic floor training, biofeedback, behavioral modification).
4. Has failed or could not tolerate (stopped taking medication due to lack of efficacy or intolerable side effects) or not a good candidate for (as determined by treating physician) at least one (1) antimuscarinic or β3 adrenoceptor agonist medication.
5. Has a diagnosis of UUI with at least 4 UUI episodes on a 72-hour diary, and minimum of one (1) UUI episode per 24-hour period.

Exclusion Criteria

1. Has a hemoglobin A1c of greater than 8 percent, or has diabetes mellitus with glucosuria.
2. Has diabetic neuropathy.
3. Has interstitial cystitis or bladder pain syndrome as defined by either American Urological Association (AUA) or European Association of Urology (EAU) guidelines, chronic pelvic pain or recurrent symptomatic urinary tract infections.
4. Has neurogenic bladder dysfunction such as traumatic or atraumatic myelopathy, multiple sclerosis, Parkinsonism, or history of cerebrovascular accident.
5. Has documented urinary retention within 6 months prior to the screening baseline visit date.
6. Has clinically significant bladder outlet obstruction.
7. Is a subject with a mechanical obstruction such as benign prostatic hypertrophy, urethral stricture or cancer.
8. Has primary stress incontinence or mixed incontinence where the stress component predominates or has been treated surgically for stress urinary incontinence within 6 months prior to the screening baseline visit date.
9. Has received tibial nerve stimulation (TNS) in the past 3 months for the treatment of overactive bladder or unwilling to stay off TNS therapy for 12-month period following implant.
Minimum Eligible Age

22 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Neuspera Medical, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Osvaldo Padron, MD

Role: PRINCIPAL_INVESTIGATOR

Florida Urology Partners

Locations

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Genesis Healthcare Partners

Encinitas, California, United States

Site Status

Kaiser Permanente, LAMC

Los Angeles, California, United States

Site Status

Kaiser Permanente

San Diego, California, United States

Site Status

Clinical Research Center of Florida

Pompano Beach, Florida, United States

Site Status

Florida Urology Partners, LLC

Tampa, Florida, United States

Site Status

Midtown Urology

Atlanta, Georgia, United States

Site Status

Meridian Clinical Research

Savannah, Georgia, United States

Site Status

Comprehensive Urologic Care

Lake Barrington, Illinois, United States

Site Status

Women's Health Advantage

Fort Wayne, Indiana, United States

Site Status

Indiana University School of Medicine

Indianapolis, Indiana, United States

Site Status

University of Kansas Hospital

Kansas City, Kansas, United States

Site Status

UofL Health System (University of Louisville)

Louisville, Kentucky, United States

Site Status

Ochsner Medical

New Orleans, Louisiana, United States

Site Status

University of Michigan Health - West

Wyoming, Michigan, United States

Site Status

University of Minnesota

Minneapolis, Minnesota, United States

Site Status

Minnesota Urology

Woodbury, Minnesota, United States

Site Status

Specialty Research of St. Louis

St Louis, Missouri, United States

Site Status

Adult & Pediatric Urology P.C.

Omaha, Nebraska, United States

Site Status

Weill Cornell Medical College

New York, New York, United States

Site Status

Premier Medical Group

Poughkeepsie, New York, United States

Site Status

Associated Medical Professionals of NY

Syracuse, New York, United States

Site Status

MetroHealth

Cleveland, Ohio, United States

Site Status

The Oregon Clinic Urogynecology West

Portland, Oregon, United States

Site Status

The Institute for Female Pelvic Medicine and Reconstructive Surgery

North Wales, Pennsylvania, United States

Site Status

Southern shores urogynecology

Myrtle Beach, South Carolina, United States

Site Status

Southern Urogynecology

West Columbia, South Carolina, United States

Site Status

Center for Pelvic Health

Franklin, Tennessee, United States

Site Status

Urology Austin

Austin, Texas, United States

Site Status

Urology Clinics of North Texas (Dallas Center for Pelvic Medicine)

Dallas, Texas, United States

Site Status

Virginia Mason

Seattle, Washington, United States

Site Status

University of Washington

Seattle, Washington, United States

Site Status

Universiteit Antwerpen

Antwerp, , Belgium

Site Status

Maastricht University Medical Center

Maastricht, , Netherlands

Site Status

Erasmus University Medical Center

Rotterdam, , Netherlands

Site Status

Countries

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United States Belgium Netherlands

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Related Links

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http://neuspera.com

Neuspera Medical web page

Other Identifiers

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SANS-UUI

Identifier Type: OTHER

Identifier Source: secondary_id

Neuspera Medical (NSM)-004

Identifier Type: -

Identifier Source: org_study_id

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