Related Experiment Video
Updated: Jul 12, 2026

E-Patient Counseling Trial (E-PACO): Computer Based Education versus Nurse Counseling for Patients to Prepare for Colonoscopy
Published on: August 1, 2019
Real-World Evidence: A Randomized, Controlled, Single-Blinded Trial Comparing Oral Sulfate Tablets Versus PEG
Ahmad Abulawi1, Jacqueline Liu2, Raya Alashram3
1Division of Gastroenterology & Hepatology.
Oral sulfate tablets (OST) offer comparable efficacy and safety to polyethylene glycol (PEG) for colonoscopy bowel preparation. Patients reported better tolerability and satisfaction with OST, making it a preferred option.
Area of Science:
- Gastroenterology
- Oncology
- Clinical Trials
Background:
- Colorectal cancer is a leading cause of cancer death in the U.S.
- Suboptimal bowel preparation affects approximately 25% of colonoscopies.
- Poor bowel preparation is a significant deterrent to undergoing colonoscopy.
Purpose of the Study:
- To compare the efficacy, safety, and patient tolerability of oral sulfate tablets (OST) versus polyethylene glycol (PEG) for bowel preparation.
- To assess patient satisfaction and adverse events associated with different bowel preparation methods.
- To evaluate polyp detection rates in relation to bowel preparation quality.
Main Methods:
- A randomized, controlled, single-blinded noninferiority trial involving 177 adult outpatients.
- Endoscopists, blinded to preparation, assessed colon cleansing using the US FDA Bowel Prep Scoring Scale.
- Patients completed questionnaires on preparation satisfaction and adverse events.
Main Results:
- Overall cleansing scores favored OST (67.0% excellent) over PEG (57.8%).
- Polyp identification was higher with OST (60.6%) compared to PEG (54.2%).
- Adverse events were significantly lower with OST (18.1%) versus PEG (65.1%), with nausea being most common in both.
Conclusions:
- Oral sulfate tablets (OST) demonstrate noninferior efficacy and safety compared to PEG formulations.
- OST significantly improves patient tolerability, palatability, and satisfaction.
- OST may be a preferred bowel preparation method for patients undergoing colonoscopy.
Related Concept Videos
Drugs for Peptic Ulcer Disease: Sucralfate as Mucosal Protective Agents
In this scenario, mucosal protective agents like sucralfate play an essential role. Sucralfate, a complex of sulfated sucrose and aluminum hydroxide, demonstrates its usefulness in acidic conditions,...
Drugs for Treatment of Ulcerative Colitis in IBD
Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy
Sigmoidoscopy
Sigmoidoscopy is a diagnostic procedure that uses a flexible sigmoidoscope equipped with a light source and camera to examine the rectum and sigmoid colon. The procedure involves inserting the tube through the anus...
Drugs for Treatment of Constipation-Predominant IBS
Drugs Affecting GI Tract Motility: Adsorbents as Antidiarrheal Agents
Adsorbents...
Upper GI Series: Barium Swallow
Purpose and Procedure
Patients undergoing this procedure ingest a liquid containing barium sulfate with a chalky...