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TerminatedNCT01413945Updated Feb 22, 2019

Ileocecal Sphincter Reflex by Cecal Distension During Colonoscopy

An observational study in Irritable Bowel Syndrome, sponsored by Northwell Health. Terminated at 1 site in United States. Open to participants aged 20 Years to 80 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2019-02-22.

Sponsored by Northwell Health · Observational

Why this study was terminated
Not able to enroll enough patients in this study
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
2
Ages
20 Years to 80 Years
Sex
All
01

Study summary

The aim of the current study is to test the hypothesis that patients with IBS may have a defective ICV pressures and may have small bowel bacterial overgrowth. The goal of the current study is to identify the role and competence of ileocecal valve (ICV) in patients with irritable bowel syndrome.

The primary objective is to measure the pressure of the ileocecal valve in patients with and without irritable bowel syndrome (IBS). The Ileocecal valve reflux pressures during air insufflation of cecum will be used.

Read the detailed description

This is an outpatient study. There will be no requirement to stay overnight in the hospital. The research will be conducted in the gastroenterology section of the department of Medicine in North shore university hospital and in North shore long island Jewish medical center. Both these hospitals are tertiary care centers with adequate facilities for the safe and appropriate conduct of this research. Participants must meet all eligibility criteria and sign the consent form before enrolling in the study. This is a cohort study with 2 groups (patients with IBS and participants without IBS). Patients will be enrolled into one of these two categories based on their medical history, signs and symptoms and questionnaire. There are no controlled compounds used in this study. There is no treatment involved in this study. There are 2 study related visits per subject.

Based on questionnaire we plan to recruit 25 participants who meet the criteria of IBS and 25 participants who do not meet the criteria of IBS (Total of 50 participants in the study). Patients with IBS are those who meet the criteria of IBS based on their symptoms and the responses to a validated ROME III - questionnaire. All other participants who do not meet the criteria for IBS are classified as non-IBS participants. All the participants should be having a clinically indicated colonoscopy.

02

Conditions studied

  • Irritable Bowel Syndrome

Keywords

  • Ileocecal valve
  • Irritable bowel syndrome
  • small bowel bacteria
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In context

Irritable Bowel Syndrome

1,062 studies on the registry are indexed under Irritable Bowel Syndrome; 190 are open to participants now.

This study's enrollment of 2 is below the median of 150 across 178 observational studies indexed under Irritable Bowel Syndrome.

Browse Irritable Bowel Syndrome studies →

Lead sponsor

Northwell Health is the lead sponsor of 463 studies on the registry; 109 are open to participants now.

Of its 40 completed or terminated interventional studies of FDA-regulated products, 20 (50%) have results posted.

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

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Who can participate

Ages eligible
20 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Patients with who are undergoing routine screening colonoscopies.

Inclusion criteria

  • Patients with a history of small bowel bacterial overgrowth or irritable bowel syndrome and who are undergoing routine colonoscopies or subjects who are undergoing routine colonoscopy and test positive for small bowel bacterial overgrowth will be candidates. If the patient has prior lactulose breath test done for clinical purposes then repeat lactulose breath test will not be required. If no prior lactulose breath test has been performed then it will be done as part of this research study. In addition patients who test negative for SBBO will be candidates for the control population.

Exclusion criteria

Exclusion Criteria:

  • Medications-Subjects on any medication that could affect the ileocecal valve high-pressure zone will be excluded; this includes use of prokinetic agents, current use of any antibiotics and anticholinergics. Patients will be excluded if the lactulose breath test is done on antibiotics or during the colonoscopy preparation.

GI symptoms, conditions and disorders: In addition exclusion criteria will include a history of ileocecal resection or disease affecting the colon and/or small bowel including crohn's disease, ulcerative colitis or diseases causing diarrhea.

05

Study design

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

Groups and cohorts

  • Normal volunteers

    Normal volunteers without Irritable bowel syndrome who are undergoing screening colonoscopy.

  • Irritable bowel syndrome

    Patients with Irritable bowel syndrome are undergoing colonoscopy as standard of care.

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What researchers measure

Primary outcomes

  1. Pressure generated in ICV during Cecal distention

    Time frame: 10-15 minutes

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Study locations

1 site
  • LIJ Medical Center- NSLIJ Health System
    New Hyde Park, New York 11040, United States
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References and documents

Publications

  • GAZET RJ, JARRETT J. THE ILEOCAECO-COLIC SPHINCTER. STUDIES IN VITRO IN MAN, MONKEY, CAT, AND DOG. Br J Surg. 1964 May;51:368-70. doi: 10.1002/bjs.1800510519. No abstract available. PubMed 14153394 ↗
  • SINGLETON AO Jr, REDMOND DC 2nd, MCMURRAY JE. ILEOCECAL RESECTION AND SMALL BOWEL TRANSIT AND ABSORPTION. Ann Surg. 1964 May;159(5):690-4. doi: 10.1097/00000658-196405000-00006. No abstract available. PubMed 14158913 ↗
  • Jarrett RJ, Gazet JC. Studies in vivo of the ileocaeco-colic sphincter in the cat and dog. Gut. 1966 Jun;7(3):271-5. doi: 10.1136/gut.7.3.271. No abstract available. PubMed 18668804 ↗
  • Kelley ML Jr, Gordon EA, Deweese JA. Pressure responses of canine ileocolonic junctional zone to intestinal distention. Am J Physiol. 1966 Sep;211(3):614-8. doi: 10.1152/ajplegacy.1966.211.3.614. No abstract available. PubMed 5927889 ↗
  • Cohen S, Harris LD, Levitan R. Manometric characteristics of the human ileocecal junctional zone. Gastroenterology. 1968 Jan;54(1):72-5. No abstract available. PubMed 5635439 ↗
  • Castell DO, Cohen S, Harris LD. Response of human ileocecal sphincter to gastrin. Am J Physiol. 1970 Sep;219(3):712-5. doi: 10.1152/ajplegacy.1970.219.3.712. No abstract available. PubMed 5450876 ↗
  • Griffen WO Jr, Richardson JD, Medley ES. Prevention of small bowel contamination by ileocecal valve. South Med J. 1971 Sep;64(9):1056-8. doi: 10.1097/00007611-197109000-00006. No abstract available. PubMed 5096285 ↗
  • Pahlin PE, Kewenter J. Sympathetic nervous control of cat ileocecal sphincter. Am J Physiol. 1976 Aug;231(2):296-305. doi: 10.1152/ajplegacy.1976.231.2.296. PubMed 961880 ↗
  • Stremmel W, Kurpreugsch K, Langewitz W. [Hormonal and pharmacological modification of the ileocecal sphincter]. Chir Forum Exp Klin Forsch. 1977 Apr:45-8. German. PubMed 618312 ↗
  • King CE, Toskes PP. Small intestine bacterial overgrowth. Gastroenterology. 1979 May;76(5 Pt 1):1035-55. No abstract available. PubMed 437407 ↗
  • Rubin MR, Fournet J, Snape WJ Jr, Cohen S. Adrenergic regulation of ileocecal sphincter function in the cat. Gastroenterology. 1980 Jan;78(1):15-21. No abstract available. PubMed 7350021 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 22, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01413945
Lead sponsor
Northwell Health
Responsible party
Larry Miller (Principal Investigator, Northwell Health) — Principal investigator
First posted
Aug 10, 2011
Start date
Jun 21, 2013
Primary completion
Aug 5, 2015
Completion
Jan 18, 2017
Last update
Feb 22, 2019

Study contacts

Larry S Miller, MD
principal investigator · Northwell Health

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is terminated, as verified in Feb 2019. You cannot join it, but the record below documents what was studied.

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