Plain English Summary
Background and study aims
Spinal cord injury disrupts signals between the brain and the rest of the body, including the signals needed to voluntarily control the bladder and bowels. Following this loss in control people often experience bladder overactivity and incontinence. Currently the main treatment for this is medication, which can have side effects. Neuromodulation (a type of electrical stimulation) is a treatment which can alter nerve activity including that affecting the bladder. The aim of this study is to find out to what extent neuromodulation can reduce unwanted bladder contractions and incontinence when delivered using skin surface electrodes and a portable stimulator in people with spinal cord injury and bladder overactivity over a week in their home environment.
Who can participate?
Spinal cord injured patients aged 18 and over with overactive bladder
What does the study involve?
Participants first record a bladder diary on a provided device for one week. They then visit the clinic to test the portable stimulation system whilst their bladder's behaviour is measured, to ensure they can safely apply it by themselves and to record initial effectiveness. They use the stimulation to manage overactivity at home for one week, then visit the clinic again to re-assess its effect whilst recording bladder behaviour.
What are the possible benefits and risks of participating?
There are no direct benefits of participating. There are a few potential risks including urinary tract infections (infections of the bladder, kidneys and connecting tubes), autonomic dysreflexia (dangerous rise in blood pressure), and skin irritation from the electrodes. These risks are discussed and monitored closely during the study.
Where is the study run from?
Royal National Orthopaedic Hospital (UK)
When is the study starting and how long is it expected to run for?
September 2016 to September 2020
Who is funding the study?
Inspire Foundation (UK)
Who is the main contact?
Mr Sean Doherty
Mr Sean Doherty
Royal National Orthopaedic Hospital
+44 (0)207 909 5605
NEUROMOD: Researching the effect of electrical stimulation on bladder overactivity following spinal cord injury in a home pilot study
The purpose of this pilot study is to determine to what extent neuromodulation can reduce unwanted bladder contractions and incontinence when delivered using skin surface electrodes and a portable stimulator in people with spinal cord injury and bladder overactivity over a week in their home environment.
Stanmore – London REC, 08/08/2017, ref: 17/LO/1031
Non-randomised; Interventional; Design type: Treatment, Device, Complementary Therapy
Primary study design
Secondary study design
Non randomised study
Patient information sheet
Not available in web format, please use the contact details to request a patient information sheet
UKCRC code/ Disease: Injuries and Accidents/ Injuries to unspecified part of trunk, limb or body region, Renal and Urogenital/ Other disorders of the genitourinary system
Participants will first record a bladder diary on a provided device for one week. They will then visit the clinic to test the portable stimulation system whilst their bladder's behaviour is measured, this will be to ensure they can safely apply it by themselves and to record initial effectiveness. They will use the stimulation to manage overactivity at home for one week, then repeat the visit to the clinic to re-assess its effect whilst recording bladder behaviour.
Primary outcome measure
Bladder overactivity, measured using bladder diary; Timepoint(s): 7 days without intervention, the 7 days with intervention
Secondary outcome measures
Effect of neuromodulation on bladder overactivity, measured using ambulatory urodynamics conducted at the beginning and at the end of the 7-day period where participants are using the stimulation device
Overall trial start date
Overall trial end date
Reason abandoned (if study stopped)
Participant inclusion criteria
1. Spinal cord injured
2. Aged 18 and over
3. Male or female
4. Injury sustained >6 months ago
5. Urodynamically proven neurogenic detrusor overactivity
Target number of participants
Planned Sample Size: 12; UK Sample Size: 12
Participant exclusion criteria
1. Recipient of intra-detrusor botulinum toxin injections within the last 6 months
2. Previous surgical intervention on bladder/sphincters
3. Showing positive leucocytes and nitrites on urinalysis on the day of investigation
5. Cardiac pacemaker
6. Active sepsis
7. History of significant Autonomic Dysreflexia
8. Poorly controlled epilepsy. Acceptable where epilepsy is controlled by drugs or there have been no fits experienced for a reasonable period
9. Patients with a cancerous tumour in the area of the electrical stimulation will be excluded as increased local blood flow may increase tumour growth
10. Patients with exposed orthopaedic metal work in the area of electrical stimulation
Recruitment start date
Recruitment end date
Countries of recruitment
Trial participating centre
Royal National Orthopaedic Hospital
Funding Body Type
private sector organisation
Funding Body Subtype
Trusts, charities, foundations (both publically funded and privately funded)
Results and Publications
Publication and dissemination plan
Planned publication in relevant peer-reviewed journal, submission of manuscript by September 2020.
IPD sharing statement
The data sharing plans for the current study are unknown and will be made available at a later date.
Intention to publish date
Participant level data
To be made available at a later date
Basic results (scientific)