Abstract
Background
We compared the efficacy, tolerability, and safety of oral sulfate tablets (OST, which contains simethicone) and 2 L-polyethylene glycol/ascorbate (2 L-PEG/Asc) with a split-dosing regimen in older individuals aged ≥ 70 years who underwent scheduled colonoscopy.
Methods
This prospective, randomized, investigator-blinded, multicenter study was conducted between June 2022 and October 2023. Participants aged ≥ 70 years were randomized at a ratio of 1:1 to the OST or 2 L-PEG/Asc groups.
Results
In total, 254 patients were evaluated using a modified full analysis set. Successful overall bowel preparation was excellent and similar between the OST and 2 L-PEG/Asc groups for the Boston Bowel Preparation Scale (BBPS) (96.5% vs. 96.6%) and Harefield Cleansing Scale (HCS) (96.5% vs. 97.4%). The overall high-quality preparation rate was higher in the OST group than in the 2 L-PEG/Asc group (BBPS: 55.7% vs. 28.4%, P < 0.001; HCS: 66.1% vs. 38.8%, P < 0.001). The overall adenoma detection rate (54.8% vs. 35.3, P = 0.003) was superior in the OST group compared to the 2 L-PEG/Asc group. Tolerability scores, including overall satisfaction, were generally higher in the OST group than in the 2 L-PEG/Asc group. The incidence of major solicited adverse events was comparable between the two groups (55.7% vs. 68.1, P = 0.051), and there were no clinically significant changes in the serum laboratory profiles on the day of or 7 days after colonoscopy.
Conclusions
OST is an effective and safe low-volume agent for colonoscopy, with better tolerance than 2 L-PEG/Asc, in older individuals aged ≥ 70 years.
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Abbreviations
- OST:
-
Oral sulfate tablet
- PEG:
-
Polyethylene glycol
- Asc:
-
Ascorbate
- BBPS:
-
Boston Bowel Preparation Scale
- HCS:
-
Harefield Cleansing Scale
- CRC:
-
Colorectal cancer
- OSS:
-
Oral sulfate solution
- PDR:
-
Polyp detection rate
- ADR:
-
Adenoma detection rate
- AE:
-
Adverse event
- mFAS:
-
Modified full analysis set
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Acknowledgements
The authors thank the clinical trial department of Pharmbio Korea for their expertise.
Funding
This study was funded by Pharmbio Korea Co., Seoul, Korea; however, clinical trial and manuscript writing were carried out independently.
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Concept and design: JMC; data acquisition: HSK, SYN, JYY, YJ, GSS, and JMC; statistical analysis: JYY and JMC; drafting and revision of the manuscript: HSK, and JMC. All the authors approved the final manuscript.
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Clinical trial: Trial Registration: Clinical Trials.gov, Registration number (trial ID): NCT05249335.
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Kang, H.S., Na, SY., Yoon, J.Y. et al. Efficacy, tolerability, and safety of oral sulfate tablet versus 2 L-polyethylene glycol/ascorbate for bowel preparation in older patients: prospective, multicenter, investigator single-blinded, randomized study. J Gastroenterol 59, 402–410 (2024). https://doi.org/10.1007/s00535-024-02089-9
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DOI: https://doi.org/10.1007/s00535-024-02089-9