Transcutaneous Medial Plantar Nerve Stimulation in Women With Idiopathic Overactive Bladder

NCT ID: NCT06390488

Last Updated: 2024-12-02

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

NA

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-11-28

Study Completion Date

2025-02-28

Brief Summary

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The investigators conducted a prospective, randomized double-blind, placebo-controlled study based on a placebo technique to evaluate the efficacy of T-MPNS vs placebo in women with idiopathic OAB.

The main questions aimed to be answered are:

What are the effects of Transcutaneous Medial Plantar Nerve Stimulation (T-MPSS) on clinical parameters related to incontinence and quality of life compared to the placebo group in women with idiopathic overactive bladder (OAB)? Participants (n:40) with idiopathic OAB who meet the exclusion and inclusion criteria will be divided into 2 groups using a randomization table. The first group will receive T-MPSS (n:20) and the second group will receive placebo T-MPSS (n:20). Measurements will be performed twice in total, before and at the end of treatment (6th week).

Detailed Description

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Conditions

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Urinary Bladder, Overactive

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

OTHER

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors

Study Groups

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T-MPNS

In this study, the stimulation device will be connected to the patient via channel 1, and active stimulation will be performed. Channel 2 will not be connected to the patient, thus no stimulation will be given through this channel. Both channels will utilize a stimulation protocol set to continuous mode with a frequency of 20 Hz and a pulse width of 200 ms. The intensity of the current for channel 1 (ranging from 0 to 50 mA) will be determined based on the comfort level of the patient after ensuring correct positioning. Correct positioning will be confirmed by observing a hallux reaction (plantar flexion of the big toe or, rarely, fanning of the fingers). T-MPNS sessions will be conducted twice a week for 6 weeks, with each session lasting 30 minutes. The intervention will consist of a 12-session T-MPNS treatment program.

Group Type EXPERIMENTAL

Transcutaneous medial plantar nerve stimulation (T-MPNS)

Intervention Type OTHER

T-MPNS will be conducted unilaterally in the supine position using the electrotherapy device with surface electrodes. Two round self-adhesive electrodes will be positioned, with the negative electrode near the metatarsal-phalangeal joint of the great toe on the medial aspect of the foot and the positive electrode approximately 2 cm inferior-posterior to the medial malleolus (in front of the Medio-Malleolar-Calcaneal axis). Channel 1 will provide active stimulation, while channel 2 will remain inactive.

Sham T-MPNS

In the Sham T-MPNS group, patients will receive stimulation with the same electrotherapy device, same patient and electrode positioning, and identical current characteristics as the T-MPNS group. Channel 2 of the device will be connected to the patient without delivering stimulation, while channel 1 will not be connected but will display current intensity and treatment duration on the device screen. The current intensity on channel 1 will only be able to be increased up to 2-3 mA to prevent patients from exceeding this level. Patients will be advised that higher stimulations might negatively affect treatment outcomes. All patients, including those in the placebo group, will be informed that the absence of motor or sensory responses during treatment does not imply ineffectiveness, alleviating concerns about lack of sensation. Sham T-MPNS sessions will be conducted twice weekly for 6 weeks, with each session lasting 30 minutes, totaling 12 sessions.

Group Type SHAM_COMPARATOR

Sham Transcutaneous medial plantar nerve stimulation (T-MPNS)

Intervention Type OTHER

Sham T-MPNS group will be stimulated using the same electrotherapy device, with patients positioned identically and electrodes placed in the same positions as in the T-MPNS group. The current characteristics (pulse frequency 20 Hz and pulse width 200 ms) will also remain consistent across both channels. The second channel of the stimulation device will be designated as the channel connected to the patient but without delivering stimulation.

Interventions

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Transcutaneous medial plantar nerve stimulation (T-MPNS)

T-MPNS will be conducted unilaterally in the supine position using the electrotherapy device with surface electrodes. Two round self-adhesive electrodes will be positioned, with the negative electrode near the metatarsal-phalangeal joint of the great toe on the medial aspect of the foot and the positive electrode approximately 2 cm inferior-posterior to the medial malleolus (in front of the Medio-Malleolar-Calcaneal axis). Channel 1 will provide active stimulation, while channel 2 will remain inactive.

Intervention Type OTHER

Sham Transcutaneous medial plantar nerve stimulation (T-MPNS)

Sham T-MPNS group will be stimulated using the same electrotherapy device, with patients positioned identically and electrodes placed in the same positions as in the T-MPNS group. The current characteristics (pulse frequency 20 Hz and pulse width 200 ms) will also remain consistent across both channels. The second channel of the stimulation device will be designated as the channel connected to the patient but without delivering stimulation.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Women over the age of 18 with clinical diagnosis of idiopathic OAB
* Not tolerated or unresponsive to antimuscarinics and discontinued at least 4 weeks
* Able to understand the procedures, advantages and possible side effects
* Willing and able to complete the voiding diary and QoL questionnaire
* The strength of pelvic floor muscles 3/5 and more

Exclusion Criteria

* Women with stress urinary incontinence
* History of conservative therapy (T-MPNS and Transcutaneous Tibial Nerve Stimulation/PTNS) within 6 months
* Pregnancy or intention to become pregnant during the study
* Current vulvovaginitis or urinary tract infections or malignancy
* Anatomic or posttraumatic malformations/skin disorders of medial plantar nerve region on inner foot that cannot allow to apply the electrodes
* More than stage 2 according to the pelvic organ prolapse quantification (POP-Q)
* Cardiac pacemaker, implanted defibrillator
* Previous urogynecological surgery within 3 months
* Neurogenic bladder, signs of neurologic abnormalities at objective examination; history of the peripheral or central neurologic pathology
* Ultrasonographic evidence of post-void residual volume more than 100 ml
Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Pamukkale University

OTHER

Sponsor Role lead

Responsible Party

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Necmettin Yildiz

Professor Doctor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Necmettin Yıldız, Prof.

Role: STUDY_DIRECTOR

Pamukkale University

Locations

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Pamukkale University

Denizli, , Turkey (Türkiye)

Site Status

Countries

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Turkey (Türkiye)

Central Contacts

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Emre Bezmez, M.D.

Role: CONTACT

+902584444747

References

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Other Identifiers

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PamukkaleU.ftr-NYıldız-2

Identifier Type: -

Identifier Source: org_study_id