This site became the new on June 19th. Learn more.
Show more Menu IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu IMPORTANT: Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu
Give us feedback

Biofeedback Treatment for Functional Constipation

This study has been completed.
Information provided by:
University of California, San Francisco Identifier:
First received: July 16, 2007
Last updated: June 24, 2010
Last verified: August 2009

The purpose of this randomized, controlled trial is to examine how well biofeedback treatment works to improve constipation. The study is comparing two kinds of biofeedback treatment: 1) anorectal-specific biofeedback therapy and 2) generalized biofeedback therapy using relaxation techniques.

The study will also examine which medical and psychological factors determine biofeedback success for treating constipation, such as bowel habits, emotional reactions to constipation, and levels of stress and psychological distress.

Condition Intervention
Constipation Behavioral: Biofeedback

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Biofeedback for Functional Constipation: Efficacy and Predictive Factors of Success

Resource links provided by NLM:

Further study details as provided by University of California, San Francisco:

Enrollment: 15
Study Start Date: March 2005
Study Completion Date: November 2007
Detailed Description:

This is a randomized controlled trial (RCT) to evaluate the efficacy of anorectal biofeedback therapy for functional constipation secondary to pelvic floor dyssynergia. Participants will be randomized to either six sessions of anorectal biofeedback or to six sessions of generalized biofeedback.

Participants will complete questionnaires at baseline, at completion of randomized treatment(12 weeks), and six months after completion of treatment to measure change in bowel habits, constipation severity, constipation-related quality of life, and constipation-related disability. An examination of psychosocial factors will also be conducted prior to treatment to distinguish which ones are predictive of biofeedback success for functional constipation.


Ages Eligible for Study:   Child, Adult, Senior
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • chronic constipation
  • medical recommendation to undergo biofeedback training
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00502957

United States, California
University of California, San Francisco
San Francisco, California, United States, 94115
Sponsors and Collaborators
University of California, San Francisco
Principal Investigator: Madhulika G Varma, MD University of California, San Francisco
  More Information

Publications automatically indexed to this study by Identifier (NCT Number): Identifier: NCT00502957     History of Changes
Other Study ID Numbers: H9654-26326
Study First Received: July 16, 2007
Last Updated: June 24, 2010

Keywords provided by University of California, San Francisco:

Additional relevant MeSH terms:
Signs and Symptoms, Digestive
Signs and Symptoms processed this record on August 18, 2017