- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02941471
Transabdominal Electrical Stimulation for Constipation
A Double-blind Pilot Randomised Trial of Transabdominal Interferential Stimulation and Transcutaneous Electrical Nerve Stimulation for Severe Chronic Constipation in Adults Unresponsive to Conservative Treatments
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Patients with Rome III defined constipation unresponsive to medical and behavioural treatment will be randomised in a double-blind prospective trial to receive either four weeks of transabdominal electrical stimulation (TENS) or Interferential stimulation (IFC). Treatment will be self-administered at home for sixty minutes a day. The response to treatment will be assessed with the Patient Assessment of Constipation Quality of Life questionnaire (PAC-QOL), the Patient-Assessment of Constipation Symptoms (PAC-SYM) tool and a bowel visual analogue scale (VAS). A bowel diary will be kept a week before and during the final week of stimulation, recording daily bowel frequency.
IFC stimulation is an effective, cheap and low risk intervention which has demonstrated efficacy for dysphagia, urinary incontinence, overactive bladder syndromes and chronic pain. The precise mechanism of its analgesic and pro-kinetic effect is unknown. The intervention is delivered by two separate continuous alternating electrical currents. Two pairs of pad electrodes are arranged in a quadripolar manner where each pair delivers a different frequency of current. It is suggested that this arrangement of stimulation improves colonic propagation. However as direct massage of the abdomen has demonstrated benefit in constipation it is argued that IFC is not a specific requirement and that non-IFC electrical stimulation over the abdomen is sufficient to evoke the same colonic and clinical responses. Owing to these questions the efficacy of this intervention will be further evaluated in adults.
This study has two aims. The primary aim is to evaluate the effectiveness of transabdominal electrical nerve stimulation (TENS) in adult patients with chronic constipation. The secondary aim is to establish whether IFC was superior to non-IFC (TENS) electrical stimulation in adults with chronic constipation.
Study Type
Enrollment (Actual)
Phase
- Phase 1
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Age over 18 years
- Rome III defined constipation (frequency of defecation of less than three times a week, straining or sense of incomplete emptying associated with at least 25% of defecations. Lumpy, hard stools or anal digitation for at least 25% of defecations
- Failed Biofeedback
- Competent and willing to complete stimulation at home
- Competent and willing to complete the questionnaires and bowel diaries
Exclusion Criteria:
- Rectal prolapse
- Active inflammatory bowel disease
- Pregnancy or intention to become pregnant during trial
- Spinal cord injuries/cauda equina syndrome
- Other implanted electrical devices
- Allergy to device components
- Neurological disorders
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Interferential Stimulation
Medical Device: Interferential stimulation.
Stimulation parameters: 4 KHz of carrier stimulation, beat frequency between 80-160Hz, amplitude upto 33mA.
Delivered via two 100mm x 50mm adhesive pads placed on the anterior abdominal wall
|
Transabdominal interferential electrcial stimulation
Other Names:
|
Active Comparator: Standard electrical stimulation
Medical Device: Standard electrical stimulation.
Parameters set to provide continuous electrical stimulation at a pulse width of 210µs and a frequency of 14Hz and an amplitude upto 33mA.
|
Transabdominal standard electrical stimulation
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Patient Assessment of Constipation Quality of Life questionnaire (PAC-QOL)
Time Frame: After 4 weeks of stimulation
|
A validated tool for constipation severity assessment
|
After 4 weeks of stimulation
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Patient-Assessment of Constipation Symptoms (PAC-SYM)
Time Frame: After 4 weeks of stimulation
|
A validated tool for constipation severity assessment
|
After 4 weeks of stimulation
|
A bowel visual analogue scale
Time Frame: After 4 weeks of stimulation
|
a bowel visual analogue scale (0-100 where 0= 'very unhappy' 100= 'very happy') based on patients' response to the question 'how happy are you with the way your bowel has been functioning'
|
After 4 weeks of stimulation
|
Weekly bowel and laxative diary
Time Frame: one week and 4 weeks of stimulation
|
Standard bowel and laxative diary
|
one week and 4 weeks of stimulation
|
Collaborators and Investigators
Sponsor
Investigators
- Study Chair: Alan Warnes, PhD, The London Northwest Healthcare NHS Trust
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- StMarksHF
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Constipation
-
usMIMA S.L.CompletedConstipation | Constipation Chronic Idiopathic | Constipation; NeurogenicSpain, United Kingdom
-
AbbVieIronwood Pharmaceuticals, Inc.RecruitingFunctional Constipation (FC) | Chronic Idiopathic Constipation (CIC)United States, United Kingdom, Bulgaria, Netherlands
-
usMIMA S.L.University of York; County Durham and Darlington NHS Foundation TrustNot yet recruitingConstipation | Constipation-predominant Irritable Bowel Syndrome | Constipation - Functional | Constipation Chronic Idiopathic | Constipation; Neurogenic
-
Institute of Medical Sciences and SUM HospitalNot yet recruitingFunctional Constipation | Constipation - Functional | Constipation Chronic Idiopathic | Fecal Impaction | Pediatric Functional ConstipationIndia
-
SK Life Science, Inc.CompletedChronic Constipation | Functional ConstipationUnited States
-
Cairo UniversityUnknownChronic Idiopathic Constipation | Functional ConstipationEgypt
-
ProgenaBiomeRecruitingConstipation | Constipation - Functional | Constipation Chronic Idiopathic | Constipation (Excl Faecal Impaction)United States
-
Pamukkale UniversityRecruiting
-
Shanghai University of Traditional Chinese MedicineLonghua Hospital; Shanghai Municipal Hospital of Traditional Chinese MedicineRecruiting
-
Universidade Nova de LisboaCINTESIS - Center for Health Technology and Services ResearchRecruiting
Clinical Trials on Interferential Stimulation
-
University of SevilleCompletedChronic Pain | Chronic Low-back Pain | Autonomic ImbalanceSpain
-
Camilo Jose Cela UniversityPublic Health Service of MadridCompletedSubacromial Impingement SyndromeSpain
-
Muş Alparlan UniversityCompletedFunctional ConstipationTurkey
-
Universidade Federal de Santa MariaCompletedHealthy Volunteers | Hypertension, EssentialBrazil
-
Camilo Jose Cela UniversityPublic Health Service of MadridCompletedChronic Low Back PainSpain
-
Turkish League Against RheumatismUnknownOsteoarthritis, KneeTurkey
-
Federal University of São PauloCentro Universitario de MaringaCompletedChronic Low Back PainBrazil
-
Hospital de Clinicas de Porto AlegreUniversity of BrasiliaCompletedDecreased Vascular FlowBrazil
-
Istanbul Medipol University HospitalActive, not recruitingOrthopedic Disorder | Physical TherapyTurkey
-
Universidade Cidade de Sao PauloCompleted