Transcutaneous Medial Plantar Nerve Stimulation in Women With Idiopathic Overactive Bladder

Urinary Bladder, Overactive Clinical Trial

Official title:

Transcutaneous Medial Plantar Nerve Stimulation in Women With Idiopathic Overactive Bladder: A Prospective Randomized Double-blind Placebo Controlled Trial

Clinical Trial Details — Status: Not yet recruiting

Administrative data

• NCT number: NCT06390488
• Other study ID #: PamukkaleU.ftr-NYildiz-2
• Status: Not yet recruiting
• Phase: N/A
• Start date: April 22, 2024
• Est. completion date: February 28, 2025

Study information

• Verified date: April 2024
• Source: Pamukkale University
• Contact: Emre Bezmez, M.D.
• Phone: +905319902220
• Email: emrebezmez[@]gmail.com
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

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).

Recruitment information / eligibility

• Status: Not yet recruiting
• Enrollment: 40
• Est. completion date: February 28, 2025
• Est. primary completion date: January 31, 2025
• Accepts healthy volunteers: No
• Gender: Female
• Age group: 18 Years and older

Eligibility

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

Related Conditions & MeSH terms

• Urinary Bladder, Overactive

Intervention

Other:
• 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.
• 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.

Locations

Country	Name	City	State
Turkey	Pamukkale University	Denizli

Sponsors (1)

Lead Sponsor	Collaborator
Pamukkale University

Country where clinical trial is conducted

Turkey, 

References & Publications (20)

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C.K. Harding, M.C. Lapitan, S. Arlandis, K. Bø, H. Cobussen-Boekhorst, E. Costantini, et al. The European Association of Urology (EAU) Guidelines. EAU Guidelines on Management of Non-Neurogenic Female Lower Urinary Tract Symptoms. In: EAU Guidelines, 2023 (Internet). Available online at: https://uroweb.org/guidelines/non-neurogenic-female-luts

Cam C, Sakalli M, Ay P, Cam M, Karateke A. Validation of the short forms of the incontinence impact questionnaire (IIQ-7) and the urogenital distress inventory (UDI-6) in a Turkish population. Neurourol Urodyn. 2007;26(1):129-33. doi: 10.1002/nau.20292. — View Citation

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Finazzi-Agro E, Petta F, Sciobica F, Pasqualetti P, Musco S, Bove P. Percutaneous tibial nerve stimulation effects on detrusor overactivity incontinence are not due to a placebo effect: a randomized, double-blind, placebo controlled trial. J Urol. 2010 Nov;184(5):2001-6. doi: 10.1016/j.juro.2010.06.113. Epub 2010 Sep 20. — View Citation

Firinci S, Yildiz N, Alkan H, Aybek Z. Which combination is most effective in women with idiopathic overactive bladder, including bladder training, biofeedback, and electrical stimulation? A prospective randomized controlled trial. Neurourol Urodyn. 2020 Nov;39(8):2498-2508. doi: 10.1002/nau.24522. Epub 2020 Sep 22. — View Citation

Gormley EA, Lightner DJ, Faraday M, Vasavada SP; American Urological Association; Society of Urodynamics, Female Pelvic Medicine. Diagnosis and treatment of overactive bladder (non-neurogenic) in adults: AUA/SUFU guideline amendment. J Urol. 2015 May;193(5):1572-80. doi: 10.1016/j.juro.2015.01.087. Epub 2015 Jan 23. — View Citation

Kim SJ, Choi HW, Cho HJ, Hwang TK, Kim JC. The influence of preoperative bladder outlet obstruction on continence and satisfaction in patients with stress urinary incontinence after midurethral sling. Int Neurourol J. 2010 Dec;14(4):267-71. doi: 10.5213/inj.2010.14.4.267. Epub 2010 Dec 31. — View Citation

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Sonmez R, Yildiz N, Alkan H. Efficacy of percutaneous and transcutaneous tibial nerve stimulation in women with idiopathic overactive bladder: A prospective randomised controlled trial. Ann Phys Rehabil Med. 2022 Jan;65(1):101486. doi: 10.1016/j.rehab.2021.101486. Epub 2021 Nov 11. — View Citation

Tarcan T, Mangir N, Özgür MÖ, Akbal C. OAB-V8 Overactive Bladder Questionnaire Validation Study. (Turkish) Üroloji Bülteni 2012;21:113-116. http://www.kontinansdernegi.org/userfiles/media/kontinans.galenos.com.tr/oab-v8-asiri-aktif-mesane-sorgulama-formu.pdf

Tezer T, Yildiz N, Sarsan A, Alkan H. Short-term effect of magnetic stimulation added to bladder training in women with idiopathic overactive bladder: A prospective randomized controlled trial. Neurourol Urodyn. 2022 Aug;41(6):1380-1389. doi: 10.1002/nau.24957. Epub 2022 May 20. — View Citation

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* Note: There are 20 references in all — Click here to view all references

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Improvement in incontinence episodes	Reduction in incontinence episodes will be collected. Women with =50% reduction in incontinence episodes will be considered positive responders	Change from baseline Improvement in incontinence episodes at the 6th week after the treatment
Secondary	The severity of incontinence	The 24-hour pad test was carried out to evaluate the severity of incontinence	Change from baseline the severity of incontinence at the 6th week after the treatment
Secondary	Symptom severity	Overactive Bladder Questionnaire (OAB-V8) will be used to evaluate symptom severity in women with OAB in the study. The OAB-V8 consists of 8 questions in which patients can be classified as symptom severity: none (0), very little (1), a little (2), quite a few (3), very (4), and too many (5). The total score ranges from 0-40.	Change from baseline symptom severity at the 6th week after the treatment
Secondary	Frequency of voiding, nocturia, number of pads	The frequency of voiding, nocturia, and the number of pads used will be collected from the 3-day bladder diary.	Change from baseline Frequency of voiding, nocturia, number of pads at the 6th week after the treatment
Secondary	The Quality of Life	The Quality of Life-Incontinence Impact Questionnaire (IIQ7) will be used to assess specific QoL related to incontinence	Change from baseline the Quality of Life at the 6th week after the treatment
Secondary	Anxiety and Depression level	The Hospital Anxiety and Depression Scale (HAD), validated and reliability tested in Turkey in 1987, assesses levels of anxiety and depression. It comprises 14 questions, seven for anxiety and seven for depression, scored on a four-point Likert scale. Scores are summed for each subscale: questions 1, 3, 5, 7, 9, 11, and 13 for anxiety, and questions 2, 4, 6, 8, 10, 12, and 14 for depression. In Turkey, cutoff scores are 10/11 for anxiety and 7/8 for depression, indicating risk.	Change from baseline anxiety and Depression level at the 6th week after the treatment
Secondary	Assessment of sexual functions Assessment of sexual functions	In the evaluation of sexual function, the Female Sexual Function Index questionnaire is used, consisting of 19 questions assessing six main factors: sexual desire, arousal, lubrication, orgasm, satisfaction, and pain/discomfort. The highest possible total raw score is 95, while the lowest is 4. After multiplying the coefficients, the highest score is 36, and the lowest is 2. Impact coefficients used for scoring are: 0.6 for sexual desire, 0.3 for arousal and lubrication, and 0.4 for orgasm, satisfaction, and pain/discomfort. An Female Sexual Function Index score below 26.55 is indicative of sexual dysfunction	Change from baseline assessment of sexual functions at the 6th week after the treatment
Secondary	Cure and improvement rates	Cure and improvement rates will be recorded in all groups at the end-of-treatment assessments. Values under 1.3 g in the 24-hour pad test will be considered as "cure", while a 50% or greater reduction in wet weight compared to baseline measurements at the end of treatment will be considered as "improvement".	Change from baseline cure and improvement rates at the 6th week after the treatment
Secondary	Treatment Satisfaction Level	At the end of the treatment, participants will be asked to evaluate their satisfaction level with the administered treatment using a Likert scale ranging from 1 to 5 (5=very satisfied, 4=satisfied, 3=neither satisfied nor dissatisfied, 2=dissatisfied, 1=very dissatisfied).	Change from baseline Treatment Satisfaction Level at the 6th week after the treatment