NCT02406859

Brief Summary

An injury to the spinal cord results in a number of secondary medical problems, including the inability to voluntarily control the bowels. Depending on the severity and location of the injury, remaining bowel function differs, and can include any combination of the following: constipation (prolonged stool retention), difficulty with evacuation (difficultly moving bowels), fecal incontinence (problems retaining stool until it is appropriate to move the bowels). Most of the current medications and treatment options address problems of constipation and difficulty with evacuation, but there are few options for individuals who suffer from incontinency. In this study, the investigators propose to study, in detail, anorectal muscle function in individuals with spinal injury - the investigators will do so using new technology called high resolution manometry - which will present the investigator with a 3 dimensional representation of the pressure profile of the anorectal muscles as the subject attempts different maneuvers. A subgroup with representatives of all levels and completeness of injury and anorectal muscle function will be enrolled to participate in six weeks of biofeedback training to see if their bowel function can be improved. During these six weeks, the subjects will be asked to visit the laboratory twice a week in order to be trained by the research team on how to improve their anorectal strength and function in response to visual cues. After the six weeks, another manometry study will be performed. Subjects will then be sent home and asked to perform a series of home exercises for another 6 weeks, after which they will asked to return for a third and final manometry study.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
50

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jul 2013

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 1, 2013

Completed
1.6 years until next milestone

First Submitted

Initial submission to the registry

February 19, 2015

Completed
1 month until next milestone

First Posted

Study publicly available on registry

April 2, 2015

Completed
2.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2017

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 29, 2017

Completed
3.7 years until next milestone

Results Posted

Study results publicly available

September 17, 2021

Completed
Last Updated

September 17, 2021

Status Verified

August 1, 2021

Enrollment Period

4 years

First QC Date

February 19, 2015

Results QC Date

June 28, 2018

Last Update Submit

August 20, 2021

Conditions

Keywords

Spinal Cord InjuryConstipationFecal IncontinenceNeurogenic BowelBowel BiofeedbackManometry

Outcome Measures

Primary Outcomes (1)

  • Baseline Motility (Anorectal Sensation and Strength) Characteristics

    We aim to assess the following baseline motility characteristics: maximum sphincter pressure (resting and squeezing pressure), mean sphincter pressure, residual anal and intrarectal pressure (high pressure zone), and recto-anal pressure differential (difference of intrarectal and residual anal pressures) in persons with chronic spinal cord injury (SCI) and able bodied (AB) subjects.

    1 Session (Baseline Anorectal Manometry Assessment)

Secondary Outcomes (3)

  • Change in Rectal and Sphincter Pressure Due to Bowel Biofeedback Training in Individuals With Incomplete SCI.

    Baseline, post- 6 week guided biofeedback training (weeks 1-6), post- 6 week self-guided biofeedback training (weeks 7-12).

  • Changes in Recto-anal Inhibitory Reflex (RAIR) Due to Bowel Biofeedback Training in Individuals With Incomplete SCI.

    Baseline, post- 6 week guided biofeedback training (weeks 1-6), post- 6 week self-guided biofeedback training (weeks 7-12).

  • Change in Subjective Bowel Care Due to Guided and Self-Guided Biofeedback Training in Individuals With Incomplete SCI

    Baseline, post- 6 week guided biofeedback training (weeks 1-6), post- 6 week self-guided biofeedback training (weeks 7-12).

Study Arms (2)

Anorectal Manometry

EXPERIMENTAL

Part 1 \[Anorectal Manometry\]: Fifty SCI subjects and 15 AB subjects will undergo anorectal manometry and a baseline assessment of level of constipation or frequency of fecal incontinence (FI). Additional 10 able-bodied subjects will be enrolled to serve as controls. The 10 Question Bowel Survey and Incontinence Scale will be administered.

Behavioral: Anorectal Manometry

Bowel Biofeedback Training

EXPERIMENTAL

Part 2 \[Bowel Biofeedback\]: A subgroup of 20 subjects who participated in the first arm of the study (Anorectal Motility) and report either constipation or fecal incontinence will be asked to participate in 12 weeks of twice weekly, biofeedback training. The biofeedback training will consist of in-lab exercises that are paired with a visual feedback. Anorectal manometry and bowel surveys will be repeated after the training session to assess the effects of bowel biofeedback on anorectal function.

Behavioral: Bowel Biofeedback

Interventions

Subjects will complete 2 sessions twice a week for 6 weeks of bowel biofeedback training. Subjects will be asked to squeeze and bear down for a period of 5 seconds followed by rest for 10seconds. Following the training, each subject will complete similar training at home for 6 weeks.

Bowel Biofeedback Training

Subjects will undergo an anorectal manometry to establish baseline pressure characteristics. If subjects qualify for biofeedback training, they will complete two additional manometries to track the changes occuring during training.

Anorectal Manometry

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Chronic SCI (duration over 1 year)
  • Able-bodied (no SCI)

You may not qualify if:

  • Contraindication to bowel biofeedback
  • Currently pregnant or trying to become pregnant
  • Inability to provide informed consent

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

James J. Peters VA Medical Center, Bronx, NY

The Bronx, New York, 10468, United States

Location

Related Publications (1)

  • Aloysius MM, Korsten MA, Radulovic M, Singh K, Lyons BL, Cummings T, Hobson J, Kahal S, Spungen AM, Bauman WA. Lack of improvement in anorectal manometry parameters after implementation of a pelvic floor/anal sphincter biofeedback in persons with motor-incomplete spinal cord injury. Neurogastroenterol Motil. 2023 Nov;35(11):e14667. doi: 10.1111/nmo.14667. Epub 2023 Sep 25.

MeSH Terms

Conditions

Spinal Cord InjuriesConstipationFecal IncontinenceNeurogenic Bowel

Condition Hierarchy (Ancestors)

Spinal Cord DiseasesCentral Nervous System DiseasesNervous System DiseasesTrauma, Nervous SystemWounds and InjuriesSigns and Symptoms, DigestiveSigns and SymptomsPathological Conditions, Signs and SymptomsRectal DiseasesIntestinal DiseasesGastrointestinal DiseasesDigestive System DiseasesColonic Diseases, FunctionalColonic Diseases

Limitations and Caveats

The trial was limited by a small number of participants due to strict inclusion and exclusion criteria

Results Point of Contact

Title
Dr. Mark Korsten
Organization
James J. Peters VAMC

Study Officials

  • Mark A Korsten, MD

    James J. Peters Veterans Affairs Medical Center

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
SINGLE
Who Masked
INVESTIGATOR
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
FED
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 19, 2015

First Posted

April 2, 2015

Study Start

July 1, 2013

Primary Completion

June 30, 2017

Study Completion

December 29, 2017

Last Updated

September 17, 2021

Results First Posted

September 17, 2021

Record last verified: 2021-08

Data Sharing

IPD Sharing
Will not share

Locations