- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01790139
Oral Iohexol for Fecal/Fluid Tagging for CT Colonography: A Study to Improve Image Quality by Preventing Colonic Bubbles
Study Overview
Detailed Description
CT colonography (CTC) is a recently developed radiological examination to find colorectal neoplasia. Fecal/fluid tagging using oral administration of contrast is an essential procedure for CTC. Iohexol, which has recently started being used as an agent for fecal/fluid tagging, has great advantages as it has much more tolerable taste and much lower rates of adverse effects such as clamping or diarrhea compared with traditionally used Gastrografin/Gastroview. However, iohexol is frequently associated with an occurrence of a lot of bubbles in the colon, which makes CTC interpretation more time-consuming and laborious.
Past experience in colonoscopy field suggests that simethicone, a safety-proven highly inexpensive over-the-counter medicine, might resolve this issue. Given the fact that patient convenience is an important factor for a successful CTC and the fact that time-intensive nature of CTC interpretation is one of the major deterrents to wide spread adoption of CTC while CTC also needs to be as time efficient as possible in order to effectively serve the role of population screening for colorectal cancer, investigating the effect of simethicone to prevent the colonic bubbles on the time efficiency of CTC interpretation would be important. If simethicone can resolve the colonic bubble problem, CTC can be performed more conveniently for the patients as well as for the interpreting radiologists.
This study is to determine whether colonic bubbles associated with CT colonography performed with iohexol for fecal/fluid tagging could be reduced by adding simethicone to the standard cathartic preparation.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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Seoul, Korea, Republic of, 138-736
- Asan Medical Center
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Adult patients who are schedule to undergo colonoscopy for a suspicion of colonic neoplasia at the investigators' institution
- Those who agree to participate in the study
Exclusion Criteria:
- Colonoscopy for reasons other than detecting colonic neoplasia, e.g. evaluation of inflammatory bowel disease
- Contraindications to iodinated contrast including renal insufficiency, hypersensitivity, and hyperthyroidism
- Acute severe colonic obstruction which is likely preclude safe and successful performance of CTC
- Patient who is suspicious for colonic perforation
- Pregnancy
- Phenylketonuria (contraindication to simethicone)
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Diagnostic
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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No Intervention: Control
Control group undergoes CT colonography after usual cathartic bowel cleansing using Colonlyte and fecal/fluid tagging.
The tagging is done by administering orally 50 mL of iohexol (Omnipaque 350, GE Healthcare) 10 minutes after the completion of Colonlyte.
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Experimental: Intervention-Oral Simethicone
Intervention group undergoes CT colonography after usual cathartic bowel cleansing using Colonlyte, fecal/fluid tagging, and oral administration of simethicone.
The tagging is done by administering orally 50 mL of iohexol (Omnipaque 350, GE Healthcare) 10 minutes after the completion of Colonlyte.
As the interventional procedure in this intervention group, 10 mL of simethicone is administered orally immediately following the administration of iohexol.
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10 mL of simethicone is administered as an agent to prevent colonic bubbles
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Colonic bubble-related image quality
Time Frame: within 1 month after assessment of the other primary endpoint
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Colonic bubble-specific image quality is evaluated semi-quantitatively in terms of colonic mucosal surface obscured/covered by colonic bubbles.
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within 1 month after assessment of the other primary endpoint
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Overall image quality
Time Frame: within 3 months after enrollment of all the patients and acquisition of CT colonography in all enrolled patients
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Overall image quality according to the CT Colonography Reporting and Data System.
Rate of C0, i.e. polyps 1 cm or larger cannot be excluded due to insufficient technical quality, is assessed.
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within 3 months after enrollment of all the patients and acquisition of CT colonography in all enrolled patients
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diagnostic performance
Time Frame: within 3 months after enrollment of all the patients and acquisition of CT colonography in all enrolled patients
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diagnostic performance of CT colonography for detecting colonic adenoma or carcinoma 6 mm or greater in diameter
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within 3 months after enrollment of all the patients and acquisition of CT colonography in all enrolled patients
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Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Seong Ho Park, MD, Asan Medical Center
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Digestive System Diseases
- Neoplasms
- Neoplasms by Site
- Gastrointestinal Neoplasms
- Digestive System Neoplasms
- Gastrointestinal Diseases
- Colonic Diseases
- Intestinal Diseases
- Intestinal Neoplasms
- Rectal Diseases
- Colorectal Neoplasms
- Molecular Mechanisms of Pharmacological Action
- Dermatologic Agents
- Antifoaming Agents
- Emollients
- Simethicone
Other Study ID Numbers
- 2012-0584
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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