TES RCT Fleet Enema vs Oral Mechanical Bowel Prep

Summary

There is no consensus about the best bowel preparation prior to transanal endoscopic surgery TES). Cleanliness and visibility in the rectosigmoid and rectum are of utmost importance, possibly even more so than during colonoscopy, to facilitate safe, precise and efficient resection of the rectal lesion and potentially adequate closure of the defect. Both Fleet enemas and oral mechanical bowel preparation are considered standard of care in preparation for TES. This single center two arm single blinded randomized controlled trial will compare the effectiveness of Fleet enemas in comparison to Pico Salax oral mechanical bowel preparation in cleansing the rectum as measured by a modified version of the Ottawa Bowel Prep Scale.

Timeline

Start

2022-03-16

Primary completion

2026-08-01

Completion

2026-10-01

Publications

• Background Parekh PJ, Oldfield EC 4th, Johnson DA. Bowel preparation for colonoscopy: what is best and necessary for quality? Curr Opin Gastroenterol. 2019 Jan;35(1):51-57. doi: 10.1097/MOG.0000000000000494.
• Background Parra-Blanco A, Ruiz A, Alvarez-Lobos M, Amoros A, Gana JC, Ibanez P, Ono A, Fujii T. Achieving the best bowel preparation for colonoscopy. World J Gastroenterol. 2014 Dec 21;20(47):17709-26. doi: 10.3748/wjg.v20.i47.17709.
• Background Atkin WS, Hart A, Edwards R, Cook CF, Wardle J, McIntyre P, Aubrey R, Baron C, Sutton S, Cuzick J, Senapati A, Northover JM. Single blind, randomised trial of efficacy and acceptability of oral picolax versus self administered phosphate enema in bowel preparation for flexible sigmoidoscopy screening. BMJ. 2000 Jun 3;320(7248):1504-8; discussion 1509. doi: 10.1136/bmj.320.7248.1504.
• Background Ruangsin S, Chowchuvech V. A randomized double-blind controlled trial comparing two forms of enema for flexible sigmoidoscopy. J Med Assoc Thai. 2007 Nov;90(11):2296-300.
• Background Preston KL, Peluso FE, Goldner F. Optimal bowel preparation for flexible sigmoidoscopy--are two enemas better than one? Gastrointest Endosc. 1994 Jul-Aug;40(4):474-6. doi: 10.1016/s0016-5107(94)70213-6.
• Background Lai EJ, Calderwood AH, Doros G, Fix OK, Jacobson BC. The Boston bowel preparation scale: a valid and reliable instrument for colonoscopy-oriented research. Gastrointest Endosc. 2009 Mar;69(3 Pt 2):620-5. doi: 10.1016/j.gie.2008.05.057. Epub 2009 Jan 10.
• Background Calderwood AH, Jacobson BC. Comprehensive validation of the Boston Bowel Preparation Scale. Gastrointest Endosc. 2010 Oct;72(4):686-92. doi: 10.1016/j.gie.2010.06.068.
• Background Aronchick C, Lipschultz W, Wright S. Validation of an instrument to assess colon cleansing. Am J Gastroenterol 1993;94:2667.
• Background Rostom A, Jolicoeur E. Validation of a new scale for the assessment of bowel preparation quality. Gastrointest Endosc. 2004 Apr;59(4):482-6. doi: 10.1016/s0016-5107(03)02875-x.
• Background Kao D, Lalor E, Sandha G, Fedorak RN, van der Knoop B, Doornweerd S, van Kooten H, Schreuders E, Midodzi W, Veldhuyzen van Zanten S. A randomized controlled trial of four precolonoscopy bowel cleansing regimens. Can J Gastroenterol. 2011 Dec;25(12):657-62. doi: 10.1155/2011/486084.
• Background Holt EW, Yimam KK, Ma H, Shaw RE, Sundberg RA, Verhille MS. Patient tolerability of bowel preparation is associated with polyp detection rate during colonoscopy. J Gastrointestin Liver Dis. 2014 Jun;23(2):135-40. doi: 10.15403/jgld.2014.1121.232.ewh1.
• Background Kim MJ, Hong CW, Kim BC, Park SC, Han KS, Joo J, Oh JH, Sohn DK. Phase II Randomized Controlled Trial of Combined Oral laxatives Medication for BOwel PREParation (COMBO-PREP study). Medicine (Baltimore). 2016 Feb;95(7):e2824. doi: 10.1097/MD.0000000000002824.
• Background Sharma VK, Chockalingham S, Clark V, Kapur A, Steinberg EN, Heinzelmann EJ, Vasudeva R, Howden CW. Randomized, controlled comparison of two forms of preparation for screening flexible sigmoidoscopy. Am J Gastroenterol. 1997 May;92(5):809-11.
• Background Drew PJ, Hughes M, Hodson R, Farouk R, Lee PW, Wedgwood KR, Monson JR, Duthie GS. The optimum bowel preparation for flexible sigmoidoscopy. Eur J Surg Oncol. 1997 Aug;23(4):315-6. doi: 10.1016/s0748-7983(97)90723-x.
• Background Bini EJ, Unger JS, Rieber JM, Rosenberg J, Trujillo K, Weinshel EH. Prospective, randomized, single-blind comparison of two preparations for screening flexible sigmoidoscopy. Gastrointest Endosc. 2000 Aug;52(2):218-22. doi: 10.1067/mge.2000.107907.
• Background Fincher RK, Osgard EM, Jackson JL, Strong JS, Wong RK. A comparison of bowel preparations for flexible sigmoidoscopy: oral magnesium citrate combined with oral bisacodyl, one hypertonic phosphate enema, or two hypertonic phosphate enemas. Am J Gastroenterol. 1999 Aug;94(8):2122-7. doi: 10.1111/j.1572-0241.1999.01308.x.

Drugs

Indications