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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT00947180
Other study ID # R24 DK67674 (completed)
Secondary ID R24DK067674
Status Completed
Phase N/A
First received July 22, 2009
Last updated October 16, 2017
Start date October 2000
Est. completion date December 2007

Study information

Verified date March 2010
Source National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This study has been completed. The following is a brief description of the aims, methods, and results of the study:

Previous small studies suggest that chronic proctalgia (chronic recurring pain in the anal canal or rectum), which is also called levator ani syndrome, can be treated with biofeedback to teach relaxation of pelvic floor muscles, or electrogalvanic stimulation (electrical stimulation to relax muscles), or massage of pelvic floor muscles. The aim of this study was to compare the effectiveness of these three treatments, to determine how they work physiologically, and to identify which patients are most likely to benefit.

Methods: Subjects had to meet the diagnostic criteria for chronic proctalgia and to report pain at least once a week. They had to also be free of medical or psychiatric disorders that could explain their chronic proctalgia. Patients qualified to enter the study were separated into two groups based on whether they reported tenderness when the examining physician pressed on the levator ani muscles of the pelvic floor. All 157 patients who were enrolled received 9 sessions of psychological counseling plus biofeedback or electrogalvanic stimulation or massage. The results of treatment were assessed at 1, 3, 6, and 12 months after the end of treatment.


Recruitment information / eligibility

Status Completed
Enrollment 157
Est. completion date December 2007
Est. primary completion date December 2007
Accepts healthy volunteers No
Gender All
Age group 18 Years to 70 Years
Eligibility Inclusion Criteria: Recurring episodes of pain or aching in the anal canal or rectum for at least 12 weeks in the previous year. Episodes last at least 20 minutes. Pain must occur at least weekly during a 4-week run-in.

Exclusion Criteria: Other medical or psychiatric diagnoses that could explain recurring rectal pain. Daily use of psychotropic medications. Meets diagnostic criteria for irritable bowel syndrome or functional constipation. Screening studies included physical examination by a gastroenterologist, colonoscopy, pelvic ultrasound, and surgical consult in all patients and referral to a gynecologist or urologist if indicated by history.

Study Design


Related Conditions & MeSH terms


Intervention

Behavioral:
Biofeedback
Electromyographic (EMG) activity was recorded from sensors placed in the anal canal, averaged, and displayed to patients to help them learn to relax the pelvic floor muscles during straining.
Other:
Electrogalvanic stimulation
Electrical stimulation was applied to pelvic floor muscles through an anal plug. Frequency was 80 pulses per sec, and voltage was slowly increased from 0 to 150-350 volts as tolerated.
Behavioral:
Digital massage
Using a gloved finger, the therapist pressed on the levator ani as firmly as tolerated and moved the finger from side to side 3-4 times.

Locations

Country Name City State
Italy Division of Gastroenterology at the University of Verona Verona

Sponsors (2)

Lead Sponsor Collaborator
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) University of North Carolina, Chapel Hill

Country where clinical trial is conducted

Italy, 

References & Publications (1)

Chiarioni G, Nardo A, Vantini I, Romito A, Whitehead WE. Biofeedback is superior to electrogalvanic stimulation and massage for treatment of levator ani syndrome. Gastroenterology. 2010 Apr;138(4):1321-9. doi: 10.1053/j.gastro.2009.12.040. Epub 2010 Jan 4 — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Adequate relief of pain (proctalgia) 1, 3, 6, and 12 months following treatment
Secondary Subjective pain improvement (ordinal scale) 1, 3, and 6 months follow-up
Secondary Number of days per month with rectal pain (inferred from 30 day symptom diary) Baseline, then 1, 3, and 6 months follow-up
Secondary Visual analog scale rating of pain averaged across weeks for 30 day diary period Baseline, then 1, 3, and 6 months follow-up