A Novel Wearable Transcutaneous Tibial Nerve Stimulation (TTNS) Device in the Treatment of Patients With Overactive Bladder (OAB) and Nocturia

Official title

A Novel Wearable Transcutaneous Tibial Nerve Stimulation (TTNS) Device Combined With Behavioral Therapy (BT) Versus Behavioral Therapy in the Treatment of Patients With Overactive Bladder (OAB) and Nocturia: a Prospective, Randomized Controlled Study

Overview

Overactive bladder (OAB) is a syndrome with urgency as the main symptom, usually accompanied by frequent urination, nocturia, and sometimes urge urinary incontinence. Globally, the prevalence of OAB in the general population has been reported to be about 20%. Nocturia was defined as the patient waking up at least once during the night to urinate. Among lower urinary tract symptoms, nocturia can significantly affect daily life and quality of life. Reported causes of nocturia include nocturnal polyuria, sleep disorders, circadian rhythm disruption (e.g., circadian rhythm sleep disorders), and reduced bladder capacity. Because overactive bladder (OAB) may be associated with reduced bladder capacity, anticholinergic agents are used as standard therapy in the management of nocturia associated with OAB. However, anticholinergic medications are associated with poor adherence, such as inadequate efficacy and adverse effects (e.g., dry mouth, constipation, and cognitive impairment). Therefore, it is imperative to find alternative therapies for anticholinergic drugs. Previous studies have shown that transcutaneous tibial nerve stimulation (TNS) can also significantly improve lower urinary tract symptoms, such as frequency, urgency, incontinence, and nocturia, and is also one of the options for the treatment of OAB. A previous study also demonstrated its improvement in sleep quality in women with nocturia. However, the efficacy of tibial nerve stimulation in the treatment of active bladder with nocturia is still a blank, and further studies are needed.

Detailed description

In strict accordance with the inclusion criteria and exclusion criteria, appropriate research participants were screened to participate in this clinical study. At least 80 cases were completed, with 40 cases in the experimental group and 40 cases in the control group.

Participants in group A were treated with A new wearable transcutaneous tibial nerve stimulation (TTNS) device combined with behavioral therapy (BT), while participants in group B were treated with behavioral therapy alone. Participants were followed up at 4, 8, and 12 weeks after enrollment. The improvement of voiding symptoms (frequent urination, urgency, urge incontinence, etc.) and sleep quality were analyzed at different stages.

Treatment assignments: Group A, participants received tibial nerve stimulation three times a week (30 minutes each time) in combination with daily behavioral therapy. Group B: The study participants received daily behavioral therapy, and the improvement of symptoms was observed in the study participants at all stages.

Baseline data of all participants were collected at the time of enrollment: (1) basic information of patients, including age, gender, height, weight, history of smoking and alcohol, lower urinary tract dysfunction symptoms, previous treatment of OAB and nocturia, and medication history; (2) Pittsburgh sleep Quality index (PSQI); (3) standardized 72-hour voiding diary, sleep onset and awakening time, voiding volume and time, fluid intake and time, and incontinence time; (4) previous treatment of OAB and nocturia, and list of current drugs; (5) Overactive bladder symptom score (OABSS); (6) Nocturia quality of life (NQOL) score.

Study participants were followed up or reexamined at 4, 8, and 12 weeks after enrollment. Data on: (1) Pittsburgh sleep Quality Index (PSQI); (2) Standardized 72-hour voiding diary, sleep onset and awakening time, voiding volume and time, fluid intake and time, and incontinence time; (3) list of currently used drugs; (4) Overactive bladder symptom score (OABSS); (5) Nocturia quality of life (NQOL) score; (6) Urinary tract infection and adverse events.

Interventions

• Device A new wearable transcutaneous tibial nerve stimulation (TTNS) device
  Group A: participants received tibial nerve stimulation three times a week (30 minutes each time) in combination with daily behavioral therapy. Group B: The study participants received daily behavioral therapy, and the improvement of symptoms was observed in the study participants at all stages.
• Behavioral behavioral therapy
  Treatment assignments: Group A, participants received tibial nerve stimulation three times a week (30 minutes each time) in combination with daily behavioral therapy. Group B: The study participants received daily behavioral therapy, and the improvement of symptoms was observed in the study participants at all stages.

Primary outcome measures

• Standardized 72-hour voiding diary [Time frame: From enrollment to the end of treatment at 12 weeks]
• Overactive Bladder Symptom Score (OABSS) [Time frame: From enrollment to the end of treatment at 12 weeks]

Secondary outcome measures (2)

• Pittsburgh Sleep Quality Index (PSQI) [Time frame: From enrollment to the end of treatment at 12 weeks]
• Nocturia quality of life (NQOL) score [Time frame: From enrollment to the end of treatment at 12 weeks]

Eligibility criteria

Inclusion criteria

• age ≥20 years old, ≤80 years old, female;
• patients with overactive bladder (OAB) symptoms for more than 8 weeks; The inclusion criteria were as follows: voiding frequency ≥8 times in 24 hours, urgency attack ≥1 time in 24 hours, nocturnal voiding ≥2 times (OABSS score ≥6 points), and nocturnal polyuria index (NPi) ≤0.33.
• the patient's physical condition is stable and can be treated at home;
• All participants volunteered to participate in the study and provided written informed consent before the study began.

Exclusion criteria

• Residual urine volume ≥100 mL;
• difficulty walking;
• urethral stricture;
• bladder stones;
• bladder cancer;
• urinary tract infection;
• pregnant, lactating women, women of childbearing age who plan to become pregnant during the study or who do not use safe contraception;
• pelvic organ prolapse;
• neuropsychiatric disorders (including cerebrovascular diseases) associated with neurogenic bladder;
• taking medications for urinary system diseases within 2 weeks before enrollment;
• patients with mental and cognitive impairment who are unable to cooperate with treatment;
• other conditions considered by the investigator to be inappropriate for study participation.

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: No

Study design

Allocation

Randomized

Model

Parallel assignment

Masking

Open label

Primary purpose

Treatment

Study locations

China · 1 center

• Qilu Hospital of Shandong University — Jinan

Publications

• Furtado-Albanezi D, Jurgensen SP, Avila MA, Correia GN, Driusso P. Effects of two nonpharmacological treatments on the sleep quality of women with nocturia: a randomized controlled clinical trial. Int Urogynecol J. 2019 Feb;30(2):279-286. doi: 10.1007/s00192-018-3584-8. Epub 2018 Mar 6. PMID 29508046
• Liao L, Li X, Chong T, Chen Q, Xu Z, Huang B, Chen M, Li H, Wei Z, Shao Y, Lu J, Pang R, Li X, Wang Y. Efficacy and safety of tibial nerve stimulation using a wearable device for overactive bladder. BJU Int. 2024 Jun;133(6):760-769. doi: 10.1111/bju.16330. Epub 2024 Mar 11. PMID 38468422
• van Balken MR, Vandoninck V, Gisolf KW, Vergunst H, Kiemeney LA, Debruyne FM, Bemelmans BL. Posterior tibial nerve stimulation as neuromodulative treatment of lower urinary tract dysfunction. J Urol. 2001 Sep;166(3):914-8. doi: 10.1097/00005392-200109000-00025. PMID 11490245
• Yokoyama O, Yamaguchi O, Kakizaki H, Itoh N, Yokota T, Okada H, Ishizuka O, Ozono S, Gotoh M, Sugiyama T, Seki N, Yoshida M, Yamada S. Efficacy of solifenacin on nocturia in Japanese patients with overactive bladder: impact on sleep evaluated by bladder diary. J Urol. 2011 Jul;186(1):170-4. doi: 10.1016/j.juro.2011.02.2700. Epub 2011 May 14. PMID 21575976
• Weiss JP, Jumadilova Z, Johnson TM 2nd, Fitzgerald MP, Carlsson M, Martire DL, Malhotra A. Efficacy and safety of flexible dose fesoterodine in men and women with overactive bladder symptoms including nocturnal urinary urgency. J Urol. 2013 Apr;189(4):1396-401. doi: 10.1016/j.juro.2012.11.067. Epub 2012 Nov 15. PMID 23159276

Identifiers

NCT: NCT07635251 · KYLL-2026-04-013-1

Primary sources (government registries)

• ClinicalTrials.gov (US NIH)

View this study on ClinicalTrials.gov ↗