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Clinical Trial Details — Status: Terminated

Administrative data

NCT number NCT00913601
Other study ID # 001
Secondary ID
Status Terminated
Phase N/A
First received June 2, 2009
Last updated July 2, 2014
Start date May 2009
Est. completion date July 2013

Study information

Verified date July 2014
Source University of Aarhus
Contact n/a
Is FDA regulated No
Health authority Denmark: Danish Dataprotection AgencyDenmark: The Regional Committee on Biomedical Research Ethics
Study type Interventional

Clinical Trial Summary

Faecal incontinence is a devastating condition causing psychological stress, affecting daily living and influences quality of life. Faecal incontinence affects 2,2 to 5 % of the adult population. The magnitude of the problem is probably underestimated, because most patients don't discuss this affliction with their general practitioner. A new treatment, sacral nerve stimulation (SNS), has over the last decade given hope to these patients. The treatment is divided in two; first a test operation (PNE-test) has to reveal if the patient will benefit from treatment with permanent sacral nerve stimulation. Second if the patient benefit from the PNE-test, they proceed to final implant. 75-80% of the patients with idiopathic fecal incontinence benefit from the PNE-test, 70% of those get satisfactory functional results and the remaining 30% get suboptimal improvement in continence after permanent unilateral sacral nerve stimulation. The aim of this project is to investigate if bilateral sacral nerve stimulation can produce better fecal continence results than standard unilateral stimulation, through a double blind, randomized crossover study.


Description:

Sacral nerve stimulation is a very good and effective treatment for faecal incontinence The method was introduced to patients with voiding disorders in 1981. In 1995 sacral nerve stimulation was used for three patients with faecal incontinence, two were afterwards fully continent. The method has over the last decade been used increasingly in Europe. The method is now used routinely in the treatment of faecal incontinence in Europe.

Recent studies have shown that the effect of sacral nerve stimulation is due to a neuromodulation in the central nervous system, whereas direct stimulation of efferent nerves to anal sphincter and the pelvic floor has less significance.

The sacral nerve stimulation is performed in two steps, first a test stimulation, if positive the patients proceed to permanent implant.

Test stimulation (PNE-test) is performed over a 3 week period. If this test stimulation produces a decrease in incontinence episodes of more than 50 per cent, a permanent electrode and neurostimulator are implanted. The test period has a success rate of approximately 75-80% in patients with idiopathic fecal incontinence or incontinence after anal surgery. These 75-80% will normal be candidates to unilateral implantation of permanent electrode and neurostimulator.

All permanently implanted has less incontinence symptoms after the treatment. Satisfactory continence results after permanent implantation are seen in 70% of the patients, the remaining 30% only obtain a suboptimal efficacy. It is unclear whether these patients could have a more optimal function if they were stimulate on more than one sacral nerve simultaneously.

Hypothesis: Is it possible to improve the functional result in faecal incontinent patients treated with routine unilateral sacral nerve stimulation by stimulating the sacral nerves bilaterally.


Recruitment information / eligibility

Status Terminated
Enrollment 29
Est. completion date July 2013
Est. primary completion date May 2013
Accepts healthy volunteers No
Gender Both
Age group 18 Years and older
Eligibility Inclusion Criteria:

- Informed Consent

- Diagnosed with idiopathic faecal incontinence and planned sacral nerve stimulation

- Age> 40 years normal sigmoid/colonoscopic prior to operation

Exclusion Criteria:

- Pregnant or breastfeeding

- Patients who are not deemed able to follow the planned testing program, including mental illness or mentally unstable patients

- Medication with known effects on gastrointestinal motility, thyroid disease, diabetes, coeliaki, neurological disorders.

- Irritable Bowel Syndrome

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Crossover Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Treatment


Related Conditions & MeSH terms


Intervention

Device:
Medtronic INTERSIM II - 3058
Medtronic INTERSIM II - 3058 Impuls Generator

Locations

Country Name City State
Denmark Anal Physiology Laboratory, Surgical Research Section 900, Aarhus University Hospital Aarhus Aarhus C

Sponsors (2)

Lead Sponsor Collaborator
University of Aarhus MEDTRONIC DANMARK A/S Arne Jacobsens Alle 17 DK-2300 København S Danmark

Country where clinical trial is conducted

Denmark, 

References & Publications (5)

Jarrett ME, Mowatt G, Glazener CM, Fraser C, Nicholls RJ, Grant AM, Kamm MA. Systematic review of sacral nerve stimulation for faecal incontinence and constipation. Br J Surg. 2004 Dec;91(12):1559-69. Review. — View Citation

Matzel KE, Stadelmaier U, Hohenfellner M, Gall FP. Electrical stimulation of sacral spinal nerves for treatment of faecal incontinence. Lancet. 1995 Oct 28;346(8983):1124-7. — View Citation

Michelsen HB, Buntzen S, Krogh K, Laurberg S. Rectal volume tolerability and anal pressures in patients with fecal incontinence treated with sacral nerve stimulation. Dis Colon Rectum. 2006 Jul;49(7):1039-44. — View Citation

Rasmussen OØ, Christiansen J. [Sacral nerve stimulation in fecal incontinence]. Ugeskr Laeger. 2002 Aug 12;164(33):3866-8. Danish. — View Citation

Vaizey CJ, Kamm MA, Turner IC, Nicholls RJ, Woloszko J. Effects of short term sacral nerve stimulation on anal and rectal function in patients with anal incontinence. Gut. 1999 Mar;44(3):407-12. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Number of faecal incontinence episodes per week. 1, 2, and 3 months after enrolment to the project No
Secondary Days with faecal soiling. 1, 2, and 3 months after enrolment to the project No
Secondary Days with faecal urgency. 1, 2, and 3 months after enrolment to the project No
Secondary Wexner incontinence score. 1, 2, and 3 months after enrolment to the project No
Secondary Anal physiological changes during SNS bilateral versus unilateral. 1, 2, and 3 months after enrolment to the project No
Secondary Quality of life assessment (Rockwood - Fecal incontinence quality of life) 1, 2, and 3 months after enrolment to the project No
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