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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT05989646
Other study ID # N-20210004
Secondary ID
Status Recruiting
Phase N/A
First received
Last updated
Start date May 5, 2021
Est. completion date April 2024

Study information

Verified date August 2023
Source Aalborg University Hospital
Contact Kristina Thorsteinsson, MD
Phone +4597663372
Email uroforsk@rn.dk
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The aim of this study is to investigate whether the activity in brain areas controlling the bladder is different among children suffering from Overactive Bladder (OAB) and Daytime Urinary Incontinence (DUI) compared to age- and gender-matched healthy children without bladder symptoms. Moreover, the aim is to investigate if sacral transcutaneous electric nerve stimulation (TENS) has a central mechanism of action. Children with OAB and DUI will be recruited from involved pediatric departments, and functional magnetic resonance imaging (fMRI) will be performed before and after 10 weeks of sacral TENS. In healthy children without bladder symptoms, only the baseline fMRI will be performed.


Description:

Daytime Urinary Incontinence (DUI) is a common condition among children affecting 2.1-21.8 % of children aged 4.5-17 years. DUI is most often caused by a functional overactive bladder (OAB) leading to urgent desire to void (urgency) and frequent urinations (frequency). In some children with functional OAB and DUI, the bladder detrusor is overactive when performing a urodynamic investigation, but this is not evident for all children suffering from OAB and DUI. The etiology of OAB and DUI is not yet fully established and might be multifactorial. A few studies among adults have shown that adult women with OAB and DUI has more activity in brain areas controlling the bladder compared to adult women without bladder symptoms. Moreover, one study among adult women has shown a decrease in brain activity in areas controlling the bladder after sacral TENS treatment. This has led to a hypothesis that increased activity in the brain is a pathophysiological mechanism of OAB and DUI. Brain activity among children with OAB and DUI has not yet been investigated. Therefore, the objectives of this study is: 1. To investigate the activity in brain areas controlling the bladder among children with OAB and DUI and age- and gender-matched children without bladder symptoms AND 2. To investigate if sacral TENS has a centrally modulatory effect on the brain activity in areas controlling the bladder among children with OAB and DUI. Methods: The study consists of two sub-studies. The first sub-study is a cross-sectional study, whereas the second sub-study is an interventional cohort study. Forty-five children with OAB and DUI and 20 healthy children without bladder symptoms will be recruited. The study includes one structural MRI as well as two sessions of functional MRIs (only one functional MRI for healthy participants), one session prior to and after 10 weeks of sacral TENS treatment. The functional MRI session consist of a functional MRI with full bladder followed by a functional MRI with empty bladder. Moreover, the study participants and/or their parents are asked to fill in frequency and volume charts, Dry Pie, screening tools to rule out attention deficit hyperactivity disorder and autism spectrum disorders, and quality of life-questionnaires (WHO-5 and PinQ).


Recruitment information / eligibility

Status Recruiting
Enrollment 65
Est. completion date April 2024
Est. primary completion date April 2024
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 6 Years to 14 Years
Eligibility Inclusion Criteria: - Overactive Bladder as per International Children's Continence Society criteria (cases only). - At least 2 incontinence episodes per week (cases only). - No urinary tract symptoms (healthy participants only). - More than 3 daily urinations. - Normal clinical examination. Exclusion Criteria: - Known urogenital abnormality affecting the lower urinary tract function. - Prior surgery in the urinary tract (except circumcision). - Known neurological diseases or prior cerebral surgery. - Known neuropsychiatric disorders or suspicion of those by screening. - Treatment with pharmacological agents affecting the brain function. - Prior treatment with Enuresis Alarm or Transcutaneous Electrical Nerve Stimulation. - Prior or current treatment with mirabegron or oxybutynin. - Current urinary tract infection. - Current constipation according to Rome IV-criteria or faecal incontinence. - Claustrophobia. - Metallic items in the body contraindicating MRI-scans. - Abnormal uroflowmetry (healthy participants only).

Study Design


Intervention

Device:
Sacral TENS
Sacral TENS applied two hours daily for 10 weeks

Locations

Country Name City State
Denmark Department of Pediatrics, Aalborg University Hospital Aalborg
Denmark Department of Pediatrics, Aarhus University Hospital Aarhus
Denmark Department of Pediatrics, Regional Hospital West Jutland Herning
Denmark Department of Pediatrics, North Denmark Regional Hospital Hjørring

Sponsors (4)

Lead Sponsor Collaborator
Aalborg University Hospital Aarhus University Hospital, North Denmark Regional Hospital, Regional Hospital West Jutland

Country where clinical trial is conducted

Denmark, 

References & Publications (12)

Chung JM, Lee SD, Kang DI, Kwon DD, Kim KS, Kim SY, Kim HG, Moon du G, Park KH, Park YH, Pai KS, Suh HJ, Lee JW, Cho WY, Ha TS, Han SW; Korean Enuresis Association. Prevalence and associated factors of overactive bladder in Korean children 5-13 years old: a nationwide multicenter study. Urology. 2009 Jan;73(1):63-7; discussion 68-9. doi: 10.1016/j.urology.2008.06.063. Epub 2008 Sep 30. — View Citation

Fowler CJ, Griffiths D, de Groat WC. The neural control of micturition. Nat Rev Neurosci. 2008 Jun;9(6):453-66. doi: 10.1038/nrn2401. — View Citation

Franco I. Overactive bladder in children. Nat Rev Urol. 2016 Sep;13(9):520-32. doi: 10.1038/nrurol.2016.152. Epub 2016 Aug 17. — View Citation

Griffiths D, Tadic SD, Schaefer W, Resnick NM. Cerebral control of the bladder in normal and urge-incontinent women. Neuroimage. 2007 Aug 1;37(1):1-7. doi: 10.1016/j.neuroimage.2007.04.061. Epub 2007 May 18. — View Citation

Griffiths D, Tadic SD. Bladder control, urgency, and urge incontinence: evidence from functional brain imaging. Neurourol Urodyn. 2008;27(6):466-74. doi: 10.1002/nau.20549. — View Citation

Gur E, Turhan P, Can G, Akkus S, Sever L, Guzeloz S, Cifcili S, Arvas A. Enuresis: prevalence, risk factors and urinary pathology among school children in Istanbul, Turkey. Pediatr Int. 2004 Feb;46(1):58-63. doi: 10.1111/j.1442-200X.2004.01824.x. — View Citation

Swithinbank LV, Heron J, von Gontard A, Abrams P. The natural history of daytime urinary incontinence in children: a large British cohort. Acta Paediatr. 2010 Jul;99(7):1031-6. doi: 10.1111/j.1651-2227.2010.01739.x. Epub 2010 Feb 25. — View Citation

von Gontard A, Overs C, Moritz AM, Thome-Granz S, Hussong J. Incontinence and headache in preschool children. Neurourol Urodyn. 2019 Nov;38(8):2280-2287. doi: 10.1002/nau.24134. Epub 2019 Aug 8. — View Citation

Warner TC, Baandrup U, Jacobsen R, Boggild H, Aunsholt Ostergaard PS, Hagstrom S. Prevalence of nocturia and fecal and urinary incontinence and the association to childhood obesity: a study of 6803 Danish school children. J Pediatr Urol. 2019 May;15(3):225.e1-225.e8. doi: 10.1016/j.jpurol.2019.02.004. Epub 2019 Feb 15. — View Citation

Weissbart SJ, Bhavsar R, Rao H, Wein AJ, Detre JA, Arya LA, Smith AL. Specific Changes in Brain Activity during Urgency in Women with Overactive Bladder after Successful Sacral Neuromodulation: A Functional Magnetic Resonance Imaging Study. J Urol. 2018 Aug;200(2):382-388. doi: 10.1016/j.juro.2018.03.129. Epub 2018 Apr 6. — View Citation

Xing D, Wang YH, Wen YB, Li Q, Feng JJ, Wu JW, Jia ZM, Yang J, Sihoe JD, Song CP, Hu HJ, Franco I, Wen JG. Prevalence and risk factors of overactive bladder in Chinese children: A population-based study. Neurourol Urodyn. 2020 Feb;39(2):688-694. doi: 10.1002/nau.24251. Epub 2019 Dec 5. — View Citation

Zuo L, Chen J, Wang S, Zhou Y, Wang B, Gu H. Intra- and inter-resting-state networks abnormalities in overactive bladder syndrome patients: an independent component analysis of resting-state fMRI. World J Urol. 2020 Apr;38(4):1027-1034. doi: 10.1007/s00345-019-02838-z. Epub 2019 Jun 6. — View Citation

* Note: There are 12 references in allClick here to view all references

Outcome

Type Measure Description Time frame Safety issue
Primary Activity in brain areas controlling the bladder Blood Oxygen Level Dependent (BOLD)-signals on functional MRIs, compared between children with Overactive Bladder and Daytime Urinary Incontinence and children without bladder symptoms. Baseline
Primary Change in activity in brain areas controlling the bladder after TENS-treatment Blood Oxygen Level Dependent (BOLD)-signals on functional MRIs, compared between responders and non-responders to TENS-treatment. Baseline AND immediately after the intervention
Secondary Structural differences on MRI among children with OAB and DUI and healthy children Volume of brain areas involved in bladder control (e.g. lateral nuclei in pons, prefrontal cortex, anterior cingulate cortex (ACC), insula, periaqueductal grey (PAG), the pontine micturition center (PMC), and hypothalamus) Baseline
Secondary Differences in Quality of Life (QoL) between children with OAB and DUI and healthy children Assessment of QoL using WHO-5 among children with OAB and DUI and compare to QoL among children without bladder symptoms. Baseline
Secondary Change in WHO-5 score among children with OAB and DUI at baseline and after the intervention. Assessment of QoL using WHO-5 among children with OAB and DUI prior to and after ten weeks of sacral TENS-treatment. WHO-5 (World Health Organization Quality of Life Brief Version) is a validated tool, assessing QoL as a total percent-score (range 0-100). A high score indicates better QoL. Baseline AND immediately after the intervention
Secondary Change in PinQ score among children with OAB and DUI at baseline and after the intervention. Assessment of QoL using PinQ among children with OAB and DUI prior to and after ten weeks of sacral TENS treatment. PinQ (Pediatric Incontinence Questionnaire) is a validated tool, assessing QoL as a total score (range 0-80). A lower score indicates better QoL. Baseline AND immediately after the intervention
Secondary Change in WHO-5 score among children with OAB and DUI compared among responders and non-responders to sacral TENS treatment. Assessment of QoL using WHO-5 and compare among responders and non-responders to sacral TENS-treatment. WHO-5 (World Health Organization Quality of Life Brief Version) is a validated tool, assessing QoL as a total percent-score (range 0-100). A high score indicates better QoL. Immediately after the intervention
Secondary Change in PinQ score among children with OAB and DUI compared among responders and non-responders to sacral TENS treatment. Assessment of QoL using PinQ and compare among responders and non-responders to sacral TENS-treatment. PinQ (Pediatric Incontinence Questionnaire) is a validated tool, assessing QoL as a total score (range 0-80). A lower score indicates better QoL. Immediately after the intervention
Secondary Differences in maximum voided volume among responders and non-responders to sacral TENS treatment Differences in maximum voided volume (MVV) in milliliters as assessed by the frequency and volume chart, compared among responders and non-responders to sacral TENS treatment. Baseline AND immediately after the intervention
Secondary Differences in voiding frequency among responders and non-responders to sacral TENS treatment Differences in voiding frequency as assessed by the frequency and volume chart, compared among responders and non-responders to sacral TENS treatment. Baseline AND immediately after the intervention
Secondary Differences in VAS Urgency among responders and non-responders to sacral TENS treatment Differences in VAS Urgency (visual analogue scale for urgency) in percent with a higher percent indicating a higher degree of urgency, compared among responders and non-responders to sacral TENS treatment. Baseline AND immediately after the intervention
Secondary Differences in urinary incontinence severity scores among responders and non-responders to sacral TENS treatment Differences in urinary incontinence severity scores as assessed by Dry Pie, compared among responders and non-responders to sacral TENS treatment. Baseline AND immediately after the intervention
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