CClinicalTrials.gg
CompletedNCT02857816RESETUpdated Jan 14, 2019Results posted

PRospective Study to Evaluate EffectivenesS With the NURO™ PErcutaneous Tibial Neuromodulation System in Patients With OAB

An interventional study of NURO System PTNM Therapy in Overactive Bladder, sponsored by MedtronicNeuro. Completed at 11 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-01-14.

Sponsored by MedtronicNeuro · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
154
Allocation
Not applicable
Ages
18 Years and older
Sex
All
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Study summary

To evaluate the NURO system for the treatment of OAB in drug naïve patients.

Read the detailed description

The purpose of this prospective, multicenter, single arm study is to evaluate the NURO system for the treatment of OAB in drug naïve patients. The study will assess change from baseline through 12 PTNM therapy sessions in UUI (urge urinary incontinence) episodes, voiding episodes, and patient reported outcomes. The study is expected to last approximately 14 weeks per subject following the enrollment visit. Subjects will be exited from the study after the final study visit is complete.

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Conditions studied

  • Overactive Bladder
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In context

Urinary Bladder, Overactive

855 studies on the registry are indexed under Urinary Bladder, Overactive; 125 are open to participants now.

This study's enrollment of 154 is above the median of 72 across 652 interventional studies indexed under Urinary Bladder, Overactive.

Browse Urinary Bladder, Overactive studies →

Lead sponsor

MedtronicNeuro is the lead sponsor of 69 studies on the registry; 2 are open to participants now.

Of its 19 completed or terminated interventional studies of FDA-regulated products, 16 (84%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. 18 years of age or older
  2. Diagnosis of OAB and associated symptoms of UUI and qualify with at least 3 episodes of mild, moderate, or severe urgency demonstrated on a 3-day urinary voiding diary
  3. Experiencing UUI symptoms for at least 3 months
  4. No prior treatment with anticholinergics/antimuscarinics or beta 3-agonists medications to treat OAB
  5. Willing and able to accurately complete voiding diaries and questionnaires, attend visits, and comply with the study protocol
  6. Willing and able to provide signed and dated informed consent

Exclusion criteria

Exclusion Criteria:

  1. Have received anticholinergics/antimuscarinics or beta 3-agonists medications to treat OAB or advanced therapy treatment options for OAB (botulinum toxin injections, sacral neuromodulation, or percutaneous tibial nerve stimulation/neuromodulation)
  2. Primary stress incontinence or mixed incontinence where the stress component overrides the urge component
  3. Have implantable pacemakers or implantable defibrillators
  4. Use of transcutaneous electrical nerve stimulation (TENS) in pelvic region, back or legs
  5. Women who are pregnant or planning to become pregnant during the course of the study
  6. Characteristics indicating a poor understanding of the study or characteristics that indicate the subject may have poor compliance with the study protocol
  7. Nerve damage that could impact either tibial nerve or pelvic floor function.
  8. Subjects prone to excessive bleeding
  9. Inadequate skin integrity in the area of PTNM needle placement
  10. History of diabetes unless the diabetes is well-controlled through diet and/or medications
  11. Have symptomatic urinary tract infection (UTI)
  12. Participation in any research study involving or impacting gynecologic, urinary or renal function within the 4-week period prior to or plans to participate during study enrollment
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Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
154 participants (actual)

Study arms

  • Other
    NURO System PTNM Therapy

    Subjects will undergo 12 PTNM therapy sessions, administered weekly, utilizing the NURO system.

    Device: NURO System PTNM Therapy

Interventions

  • DeviceNURO System PTNM Therapy
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What researchers measure

Primary outcomes

  1. Change in Number of Urinary Urge Incontinence (UUI) Episodes Per Day After the 12th PTNM Therapy Sessions From Baseline

    Number of UUI episodes were collected at baseline and following the 12th PTNM therapy session. For each subject in the analysis, change in UUI episodes per day was calculated as UUI episodes per day after 12th PTNM session minus baseline. A negative change indicates the improvement in UUI symptom.

    Time frame: 12 Weeks

Secondary outcomes

  1. Change in Number of Voids Per Day After the 12th PTNM Therapy Sessions From Baseline in UF Subjects

    Number of voids were collected at baseline and following the 12th PTNM therapy session. For each UF subject in the analysis, a change in number of voids per day was calculated as number of voids per day after 12th PTNM session minus baseline. A negative change indicates improvement in UF symptoms.

    Time frame: 12 Weeks

  2. Change in Overactive Bladder Symptom Quality of Life Questionnaire (OABq) After 12th PTNM Therapy Sessions From Baseline

    This objective was to assess the change after12 PTNM therapy sessions from baseline in quality of life as measured by the OABq Questionnaire. OABq consists of a symptom bother scale and four health related quality of life (HRQL) subscales (Coping, Concern, Sleep and Social interaction). The symptom bother scale and 4 HRQL subscales are measured as 0-100 using a range percentile transformation on the summed value from individual listed items. The HRQL score is a calculated score with a range from 0 to 100 using a range percentile transformation on the summed value from 4 subscales (Coping, Concern, Sleep and Social). A change was calculated as the score after 12th PTNM minus the score at baseline. A positive change in HRQL and its subscales (Coping, Concern, Sleep and Social) indicates improvement in QOL; a negative change in symptom bother score indicates improvement in QOL.

    Time frame: 12 Weeks

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Results

Posted Dec 12, 2018
Limitations and caveats
Study had a single arm with all subjects treated with PTNM Therapy.

Participant flow

One hundred fifty-four subjects were enrolled (consented) to participate in the trial from September 15, 2016 through August 14, 2017 from 12 US centers.

Participant flow — Overall Study
MilestoneNURO System PTNM Therapy
Started154
Subjects qualified and treated with ptnm120
Completed116
Not completed38
Withdrew: Screen failure33
Withdrew: Withdrawal by subject4
Withdrew: Lost to follow-up1

Outcome measures

PrimaryChange in Number of Urinary Urge Incontinence (UUI) Episodes Per Day After the 12th PTNM Therapy Sessions From Baseline

Number of UUI episodes were collected at baseline and following the 12th PTNM therapy session. For each subject in the analysis, change in UUI episodes per day was calculated as UUI episodes per day after 12th PTNM session minus baseline. A negative change indicates the improvement in UUI symptom.

Time frame:
12 Weeks
Reported as:
Mean · UUI episodes per day
Change in Number of Urinary Urge Incontinence (UUI) Episodes Per Day After the 12th PTNM Therapy Sessions From Baseline
UUI episodes per dayNURO System PTNM Therapy
Change in Number of Urinary Urge Incontinence (UUI) Episodes Per Day After the 12th PTNM Therapy Sessions From Baseline-2.4 ± 2.1
Statistical analysis
  • NURO System PTNM Therapy · Wilcoxon (Mann-Whitney) · p = <0.0001
SecondaryChange in Number of Voids Per Day After the 12th PTNM Therapy Sessions From Baseline in UF Subjects

Number of voids were collected at baseline and following the 12th PTNM therapy session. For each UF subject in the analysis, a change in number of voids per day was calculated as number of voids per day after 12th PTNM session minus baseline. A negative change indicates improvement in UF symptoms.

Time frame:
12 Weeks
Reported as:
Mean · Number of voids per day
Change in Number of Voids Per Day After the 12th PTNM Therapy Sessions From Baseline in UF Subjects
Number of voids per dayNURO System PTNM Therapy
Change in Number of Voids Per Day After the 12th PTNM Therapy Sessions From Baseline in UF Subjects-1.7 ± 2.5
SecondaryChange in Overactive Bladder Symptom Quality of Life Questionnaire (OABq) After 12th PTNM Therapy Sessions From Baseline

This objective was to assess the change after12 PTNM therapy sessions from baseline in quality of life as measured by the OABq Questionnaire. OABq consists of a symptom bother scale and four health related quality of life (HRQL) subscales (Coping, Concern, Sleep and Social interaction). The symptom bother scale and 4 HRQL subscales are measured as 0-100 using a range percentile transformation on the summed value from individual listed items. The HRQL score is a calculated score with a range from 0 to 100 using a range percentile transformation on the summed value from 4 subscales (Coping, Concern, Sleep and Social). A change was calculated as the score after 12th PTNM minus the score at baseline. A positive change in HRQL and its subscales (Coping, Concern, Sleep and Social) indicates improvement in QOL; a negative change in symptom bother score indicates improvement in QOL.

Time frame:
12 Weeks
Reported as:
Mean · score on a scale
Change in Overactive Bladder Symptom Quality of Life Questionnaire (OABq) After 12th PTNM Therapy Sessions From Baseline
score on a scaleNURO System PTNM Therapy
Concern40 ± 25.8
Coping32.5 ± 23.9
Sleep30.5 ± 26.9
Social15.3 ± 21.8
HRQL30.7 ± 20.9
Symptom Bother-43.9 ± 22.5

Adverse events

Collected over Adverse events report collected starting from the time of enrollment until completion of the final study visit (approximately 16 weeks).. Non-serious events are listed at a 3% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
NURO System PTNM Therapy0/121 (0%)3/121 (2.5%)8/121 (6.6%)
Most frequent serious events
Most frequent serious events
EventNURO System PTNM Therapy
Diarrhoea infectiousInfections and infestations1/121
Breast cancer metastaticNeoplasms benign, malignant and unspecified (incl cysts and polyps)1/121
PneumothoraxRespiratory, thoracic and mediastinal disorders1/121
Most frequent other events
Most frequent other events
EventNURO System PTNM Therapy
Medical device site painGeneral disorders4/121
Pain in extremityMusculoskeletal and connective tissue disorders4/121

Baseline characteristics

One hundred twenty subjects were qualified for study participation and received PTNM therapy.

Age, Continuous
Age, Continuous(years)NURO System PTNM Therapy
Mean64.8 ± 11.6
Sex: Female, Male
Sex: Female, Male(Participants)NURO System PTNM Therapy
Female103
Male17
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)NURO System PTNM Therapy
Hispanic or Latino8
Not Hispanic or Latino110
Unknown or Not Reported2
Region of Enrollment
Region of Enrollment(participants)NURO System PTNM Therapy
United States120
Years since OAB diagnosis
Years since OAB diagnosis(years)NURO System PTNM Therapy
Mean3.4 ± 5.1
Baseline UUI episodes/day
Baseline UUI episodes/day(episodes)NURO System PTNM Therapy
Mean3.5 ± 2.5
Baseline voids/day
Baseline voids/day(episodes)NURO System PTNM Therapy
Mean11.5 ± 2.9
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Study locations

11 sites
  • Pinellas Urology, Inc.
    Saint Petersburg, Florida 33710-1925, United States
  • NorthShore University Health System
    Evanston, Illinois 60201, United States
  • Mount Auburn Hospital
    Cambridge, Massachusetts 02138, United States
  • Advanced Urogynecology of Michigan, P.C.
    Dearborn, Michigan 48123, United States
  • Metro Urology
    Woodbury, Minnesota 55125, United States
  • Urology Center Research Institute, LLC
    Englewood, New Jersey 07631, United States
  • NYU Urology Associates
    New York, New York 10016, United States
  • Alliance Urology Specialists
    Greensboro, North Carolina 27403, United States
  • Hospital of University of Pennsylvania
    Philadelphia, Pennsylvania 19104, United States
  • Virginia Mason Medical Center
    Seattle, Washington 98101, United States
  • SSM Health Dean Medical Group
    Madison, Wisconsin 53715, United States
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References and documents

Study documents

  • Study protocol · Jun 3, 2016
  • Statistical analysis plan · Aug 21, 2017

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: Yes

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 14, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT02857816
Lead sponsor
MedtronicNeuro
Responsible party
Sponsor
First posted
Aug 5, 2016
Start date
Sep 2016
Primary completion
Nov 21, 2017
Completion
Nov 21, 2017
Results posted
Dec 12, 2018
Last update
Jan 14, 2019

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Dec 2018. You cannot join it, but the record below documents what was studied.

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