NCT03119168

Effect of Simethicone on Screening Colonoscopy

The Effect Of Adding High Dose Simethicone To A Standard Polyethylene Glycol Preparation On Adenoma Detection Rate During Screening Colonoscopy: A Randomized Controlled Pilot Trial

• Status: Completed
• Phase: Phase 4
• Study type: Interventional
• Enrollment: 268 (actual)
• Sponsor: Texas Tech University Health Sciences Center, El Paso · Academic / Other
• Sex: All
• Age: 30 Years – 80 Years
• Healthy volunteers: Accepted

Summary

This study is evaluating the effect of adding a high dose of simethicone to the standard polyethylene glycol preparation for screening colonoscopy in the quality of the preparation , adenoma detection rate and withdrawal times.

Detailed description

A proper bowel preparation is key to a thorough and safe colonoscopy. Several factors affect the mucosal visualization during colonoscopy, and consequently the quality of such evaluation. Undoubtedly, this can have unfavorable implications like missed lesions. One of the most commonly encountered scenarios is the presence of multiple bubbles that interfere with mucosal visualization. When this occurs, simethicone (an antifoam agent used to reduce bloating when ingested orally) is injected through the colonoscope to eliminate the bubbles and get a clear view of the mucosa. A few studies have used oral simethicone in conjunction with oral preparation agents (PEG, magnesium citrate, sodium phosphate) in an attempt to improve the quality of the preparation. Unfortunately these studies have not used the exact same preparation agent with and without simethicone, making it difficult to draw conclusions on its efficacy. However, it is important to understand that simethicone is not intended to decrease the amount of stool in the colon, and it's purpose is to decrease the amount of bubbles interfering with the visualization of the mucosa provided that there is no stool present . Furthermore, it is unclear if adding simethicone to a standard bowel preparation makes a significant difference in key aspects of screening colonoscopy such as adenoma detection rate or withdrawal times. This prospective randomized controlled, observer blinded study at Texas Tech University Health Sciences Center in El Paso, aims at studying the effect of simethicone on the overall colon preparation as well as on adenoma detection rate and withdrawal times.

Conditions

• Adenoma Colon

Interventions

Type	Name	Description
DRUG	Simethicone Solution	Patients will be assigned randomly to take Simethicone Solution plus polyethylenglycol
OTHER	Polyethylenglycol	Patients in this arm will be randomly assigned to take polyethylenglycol as their regular bowel preparation

Timeline

• Start date: 2017-03-15
• Primary completion: 2019-04-10
• Completion: 2019-04-10
• First posted: 2017-04-18
• Last updated: 2019-06-05
• Results posted: 2019-06-05

Locations

1 site across 1 country: United States

Regulatory

• FDA-regulated drug study