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CompletedNCT01166399BOOSTUpdated Sep 10, 2020

Behavioral Therapy Of Obstetric Sphincter Tears

An observational study in Fecal Incontinence, sponsored by NICHD Pelvic Floor Disorders Network. Completed at 8 sites in United States. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2020-09-10.

Sponsored by NICHD Pelvic Floor Disorders Network · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
362
Ages
18 Years and older
Sex
Female
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Study summary

The study design will be a cohort study to determine the incidence of FI symptoms at 6, 12 and 24 weeks postpartum in primiparous women sustaining an OASI. At 6, 12 and 24 weeks postpartum, subjects will be contacted by telephone for evaluation of FI symptoms. Symptoms of FI will be defined by at least monthly symptoms of leakage of liquid, solid stool, and mucus. Flatal incontinence will be assessed at 24 weeks, based on the Fecal Incontinence Severity Index, and fecal urgency will be assessed at 24 weeks based on the one question from the Modified Manchester questionnaire. A sample size of approximately 400-450 subjects will be enrolled.

Read the detailed description

The primary aim of the "BOOST Cohort Study" is to determine the incidence of FI symptoms at 6 and 12 weeks postpartum in primiparous women sustaining an OASI.

Secondary aims of the cohort study are:

  1. To determine the incidence rates of FI symptoms at 24 weeks post delivery in primiparous women sustaining an OASI
  2. To examine the relationship between the modified WHO sphincter tear classification types and FI symptoms
  3. To examine predictors (socio-demographic, physical and clinical) associated with WHO sphincter tear classifications (3a, 3b and 4) and predictors associated with FI symptoms
  4. To evaluate the incidence of fecal urgency and flatal incontinence at 24 weeks postpartum in primiparous women sustaining an OASI.
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Conditions studied

  • Fecal Incontinence

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Keywords

  • Fecal Incontinence,
  • bowel incontinence,
  • pelvic floor disorder
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In context

Fecal Incontinence

312 studies on the registry are indexed under Fecal Incontinence; 57 are open to participants now.

This study's enrollment of 362 is above the median of 100 across 79 observational studies indexed under Fecal Incontinence.

Browse Fecal Incontinence studies →

Lead sponsor

NICHD Pelvic Floor Disorders Network is the lead sponsor of 17 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
Female
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Subjects in this trial will be primiparous women who underwent anal sphincter repair at the time of a singleton vaginal delivery. Sphincter tears will be clinically characterized at the time of delivery as \<50% tear through the anal sphincter (modified WHO 3a), >50% (modified WHO 3b), or complete tear through the anal sphincter (4th degree).

Eligibility criteria

Inclusion Criteria Assessed by 2 weeks postpartum

  1. Vaginal delivery >= 28 weeks singleton gestation
  2. Documented repair to the anal sphincter at delivery
  3. First vaginal delivery
  4. Ambulatory
  5. Able to give informed consent 6 Adult women >= 18 years of age

Inclusion Criteria at 2 weeks postpartum

  1. Inflammatory bowel disease (e.g., ulcerative colitis or Crohn's disease)
  2. Pre-pregnancy ano-rectal surgery (e.g., surgery for hemorrhoids, fissures, sphincterotomy)
  3. Pre-pregnancy FI (defined as the leakage of liquid/solid stool and mucus >= once per month for at least 12 weeks prior to this pregnancy)
  4. Neurological condition that would predispose to FI (e.g., spinal cord injury, multiple sclerosis)
  5. Presence of rectovaginal fistula
  6. Any participation in other pharmacologic or behavioral studies for FI
  7. Previous pregnancy >=28 weeks delivered vaginally or by Cesarean section
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Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
362 participants (actual)

Groups and cohorts

  • Primiparous women with an obstetric anal sphincter tear

    Subjects in this trial will be primiparous women who underwent anal sphincter repair at the time of a singleton vaginal delivery. Sphincter tears will be clinically characterized at the time of delivery as \<50% tear through the anal sphincter (modified WHO 3a), \>50% (modified WHO 3b), or complete tear through the anal sphincter (4th degree). Subjects in this study will not have receive study interventions.

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What researchers measure

Primary outcomes

  1. Incidence of FI

    The primary aim for this study is to determine the incidence of FI symptoms (based on the FISI)at 6 and 12 weeks postpartum in primiparous women sustaining an OASI.

    Time frame: 6 and 12 months postpartum

Secondary outcomes

  1. Incidence of FI

    A secondary aim for this study is to determine the incidence of FI symptoms (based on the FISI) at 24 weeks postpartum in primiparous women sustaining an OASI.

    Time frame: 24 weeks postpartum

  2. Fecal urgency

    Fecal urgency will be assessed at 24 weeks based on the one question from the Modified Manchester questionnaire

    Time frame: 24 weeks postpartum

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Study locations

8 sites
  • University of Alabama at Birmingham
    Birmingham, Alabama 35294, United States
  • University of California San Diego
    La Jolla, California 92037, United States
  • Loyola University
    Maywood, Illinois 60153, United States
  • Duke University
    Durham, North Carolina 27710, United States
  • Cleveland Clinic
    Cleveland, Ohio 44195, United States
  • University of Pittsburgh
    Pittsburgh, Pennsylvania 15260, United States
  • University of Texas Southwestern
    Dallas, Texas 75390, United States
  • University of Utah
    Salt Lake City, Utah 84132, United States
08

References and documents

Publications

  • Richter HE, Nager CW, Burgio KL, Whitworth R, Weidner AC, Schaffer J, Zyczynski HM, Norton P, Jelovsek JE, Meikle SF, Spino C, Gantz M, Graziano S, Brubaker L; NICHD Pelvic Floor Disorders Network. Incidence and Predictors of Anal Incontinence After Obstetric Anal Sphincter Injury in Primiparous Women. Female Pelvic Med Reconstr Surg. 2015 Jul-Aug;21(4):182-9. doi: 10.1097/SPV.0000000000000160. PubMed 25679358 ↗

Related links

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 10, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01166399
Lead sponsor
NICHD Pelvic Floor Disorders Network
Collaborators
Office of Research on Women's Health (ORWH), Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Responsible party
Sponsor
First posted
Jul 21, 2010
Start date
Jul 2010
Primary completion
Jun 2011
Completion
Oct 2012
Last update
Sep 10, 2020

Study contacts

Holly E Richter, PhD, MD
study chair · University of Alabama at Birmingham

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Sep 2020. You cannot join it, but the record below documents what was studied.

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