Evaluation of Information on Bowel Preparation for Morning Colonoscopy
NCT ID: NCT03650725
Last Updated: 2024-01-09
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
1000 participants
OBSERVATIONAL
2018-06-30
2023-06-30
Brief Summary
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Aims: To compare the effectiveness of mandatory split-dose bowel preparation to optional split-dose bowel preparation protocols for morning colonoscopies in a non-inferiority pragmatic trial.
Anticipated results and significance: The study will produce a better understanding of the most effective approach to bowel preparation for early morning colonoscopies and suggest specific recommendations for colonoscopy practice.
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Detailed Description
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Conditions
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Study Design
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COHORT
PROSPECTIVE
Study Groups
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Mandatory Split bowel preparation
Patients will be advised to take 4 liters of polyethylene glycol (PEG), split into two 2 liter doses. The first 2 liters are to be taken starting at 1800 hours the day before the colonoscopy, and the second dose is to be taken starting 4-5 hours prior to the scheduled time for the colonoscopy. Each dose will be taken within a 2-hour time span.
Mandatory Split bowel preparation
Intervention describes the standard of care patient split bowel preparation instructions as mandatory, instead of giving patient instructions with option of choice between split or day before bowel prep.
Optional Split bowel preparation
Patients will be advised on split-dose bowel preparation (as per option 1), but will also receive instructions on day before bowel preparation. The instructions will indicate that split-dose bowel preparation is the optimal preparation for cleansing the bowel and for visualizing polyps, but they may choose day before bowel preparation if the split dose preparation is too difficult for them.
No interventions assigned to this group
Interventions
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Mandatory Split bowel preparation
Intervention describes the standard of care patient split bowel preparation instructions as mandatory, instead of giving patient instructions with option of choice between split or day before bowel prep.
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
* Must have colonoscopy appointment with any 4 of the participating GI doctors at Health Sciences Centre-Winnipeg
* Must use 4 liter type of bowel preparation
Exclusion Criteria
* Patient and/or referral doctor requested a non-4 liter bowel preparation
18 Years
ALL
Yes
Sponsors
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Harminder Singh
OTHER
Responsible Party
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Harminder Singh
Associate Professor of Medicine
Principal Investigators
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Harminder Singh, MD, MPH
Role: PRINCIPAL_INVESTIGATOR
University of Manitoba
Locations
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Health Sciences Center
Winnipeg, Manitoba, Canada
Countries
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References
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Rex DK. Optimal bowel preparation--a practical guide for clinicians. Nat Rev Gastroenterol Hepatol. 2014 Jul;11(7):419-25. doi: 10.1038/nrgastro.2014.35. Epub 2014 Apr 1.
Martel M, Barkun AN, Menard C, Restellini S, Kherad O, Vanasse A. Split-Dose Preparations Are Superior to Day-Before Bowel Cleansing Regimens: A Meta-analysis. Gastroenterology. 2015 Jul;149(1):79-88. doi: 10.1053/j.gastro.2015.04.004. Epub 2015 Apr 8.
Horton N, Garber A, Hasson H, Lopez R, Burke CA. Impact of Single- vs. Split-Dose Low-Volume Bowel Preparations on Bowel Movement Kinetics, Patient Inconvenience, and Polyp Detection: A Prospective Trial. Am J Gastroenterol. 2016 Sep;111(9):1330-7. doi: 10.1038/ajg.2016.273. Epub 2016 Jul 5.
Radaelli F, Paggi S, Hassan C, Senore C, Fasoli R, Anderloni A, Buffoli F, Savarese MF, Spinzi G, Rex DK, Repici A. Split-dose preparation for colonoscopy increases adenoma detection rate: a randomised controlled trial in an organised screening programme. Gut. 2017 Feb;66(2):270-277. doi: 10.1136/gutjnl-2015-310685. Epub 2015 Dec 9.
Bucci C, Rotondano G, Hassan C, Rea M, Bianco MA, Cipolletta L, Ciacci C, Marmo R. Optimal bowel cleansing for colonoscopy: split the dose! A series of meta-analyses of controlled studies. Gastrointest Endosc. 2014 Oct;80(4):566-576.e2. doi: 10.1016/j.gie.2014.05.320. Epub 2014 Jul 19.
Siddiqui AA, Yang K, Spechler SJ, Cryer B, Davila R, Cipher D, Harford WV. Duration of the interval between the completion of bowel preparation and the start of colonoscopy predicts bowel-preparation quality. Gastrointest Endosc. 2009 Mar;69(3 Pt 2):700-6. doi: 10.1016/j.gie.2008.09.047.
Johnson DA, Barkun AN, Cohen LB, Dominitz JA, Kaltenbach T, Martel M, Robertson DJ, Boland CR, Giardello FM, Lieberman DA, Levin TR, Rex DK; US Multi-Society Task Force on Colorectal Cancer. Optimizing adequacy of bowel cleansing for colonoscopy: recommendations from the US multi-society task force on colorectal cancer. Gastroenterology. 2014 Oct;147(4):903-24. doi: 10.1053/j.gastro.2014.07.002. No abstract available.
Hassan C, Bretthauer M, Kaminski MF, Polkowski M, Rembacken B, Saunders B, Benamouzig R, Holme O, Green S, Kuiper T, Marmo R, Omar M, Petruzziello L, Spada C, Zullo A, Dumonceau JM; European Society of Gastrointestinal Endoscopy. Bowel preparation for colonoscopy: European Society of Gastrointestinal Endoscopy (ESGE) guideline. Endoscopy. 2013;45(2):142-50. doi: 10.1055/s-0032-1326186. Epub 2013 Jan 18.
Ton L, Lee H, Taunk P, Calderwood AH, Jacobson BC. Nationwide variability of colonoscopy preparation instructions. Dig Dis Sci. 2014 Aug;59(8):1726-32. doi: 10.1007/s10620-014-3262-8. Epub 2014 Jul 2.
Clark BT, Protiva P, Nagar A, Imaeda A, Ciarleglio MM, Deng Y, Laine L. Quantification of Adequate Bowel Preparation for Screening or Surveillance Colonoscopy in Men. Gastroenterology. 2016 Feb;150(2):396-405; quiz e14-5. doi: 10.1053/j.gastro.2015.09.041. Epub 2015 Oct 9.
Calderwood AH, Schroy PC 3rd, Lieberman DA, Logan JR, Zurfluh M, Jacobson BC. Boston Bowel Preparation Scale scores provide a standardized definition of adequate for describing bowel cleanliness. Gastrointest Endosc. 2014 Aug;80(2):269-76. doi: 10.1016/j.gie.2014.01.031. Epub 2014 Mar 12.
Parmar R, Martel M, Rostom A, Barkun AN. Validated Scales for Colon Cleansing: A Systematic Review. Am J Gastroenterol. 2016 Feb;111(2):197-204; quiz 205. doi: 10.1038/ajg.2015.417. Epub 2016 Jan 19.
Menees SB, Kim HM, Wren P, Zikmund-Fisher BJ, Elta GH, Foster S, Korsnes S, Graustein B, Schoenfeld P. Patient compliance and suboptimal bowel preparation with split-dose bowel regimen in average-risk screening colonoscopy. Gastrointest Endosc. 2014 May;79(5):811-820.e3. doi: 10.1016/j.gie.2014.01.024. Epub 2014 Mar 13.
Singh H, Kaita L, Taylor G, Nugent Z, Bernstein C. Practice and documentation of performance of colonoscopy in a central Canadian health region. Can J Gastroenterol Hepatol. 2014 Apr;28(4):185-90. doi: 10.1155/2014/635932.
Porostocky P, Chiba N, Colacino P, Sadowski D, Singh H. A survey of sedation practices for colonoscopy in Canada. Can J Gastroenterol. 2011 May;25(5):255-60. doi: 10.1155/2011/783706.
Singh H, Nugent Z, Demers AA, Kliewer EV, Mahmud SM, Bernstein CN. The reduction in colorectal cancer mortality after colonoscopy varies by site of the cancer. Gastroenterology. 2010 Oct;139(4):1128-37. doi: 10.1053/j.gastro.2010.06.052. Epub 2010 Jun 20.
Singh H, Penfold RB, De Coster C, Au W, Bernstein CN, Moffatt M. Predictors of serious complications associated with lower gastrointestinal endoscopy in a major city-wide health region. Can J Gastroenterol. 2010 Jul;24(7):425-30. doi: 10.1155/2010/714591.
Loftus R, Nugent Z, Graff LA, Schumacher F, Bernstein CN, Singh H. Patient satisfaction with the endoscopy experience and willingness to return in a central Canadian health region. Can J Gastroenterol. 2013;27(5):259-66. doi: 10.1155/2013/615206.
Singh H, Bay D, Ip S, Bernstein CN, Nugent Z, Gheorghe R, Wightman R. Pathological reassessment of hyperplastic colon polyps in a city-wide pathology practice: implications for polyp surveillance recommendations. Gastrointest Endosc. 2012 Nov;76(5):1003-8. doi: 10.1016/j.gie.2012.07.026.
Pruthi D, Duerksen DR, Singh H. The practice of gastrostomy tube placement across a Canadian regional health authority. Am J Gastroenterol. 2010 Jul;105(7):1541-50. doi: 10.1038/ajg.2009.756. Epub 2010 Jan 26.
Singh H, Turner D, Xue L, Targownik LE, Bernstein CN. Risk of developing colorectal cancer following a negative colonoscopy examination: evidence for a 10-year interval between colonoscopies. JAMA. 2006 May 24;295(20):2366-73. doi: 10.1001/jama.295.20.2366.
Shaffer SR, Lambert P, Unruh C, Harland E, Helewa RM, Decker K, Singh H. Optimizing Timing of Follow-Up Colonoscopy: A Pilot Cluster Randomized Trial of a Knowledge Translation Tool. Am J Gastroenterol. 2024 Mar 1;119(3):547-555. doi: 10.14309/ajg.0000000000002542. Epub 2023 Oct 3.
Dolovich C, Unruh C, Moffatt DC, Loewen C, Kaita B, Barkun AN, Martel M, Singh H. Mandatory vs. optional split-dose bowel preparation for morning colonoscopies: a pragmatic noninferiority randomized controlled trial. Endoscopy. 2023 Sep;55(9):822-835. doi: 10.1055/a-2070-5561. Epub 2023 Apr 6.
Other Identifiers
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H2018:202
Identifier Type: -
Identifier Source: org_study_id
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