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NCT07328880
The goal of this randomized controlled trial is to compare the safety, compliance, and efficacy of different bowel preparation methods prior to colonoscopy. Researchers will compare 4-L split-dose polyethylene glycol and the bisacodyl + docusate sodium regimen versus 2-L split-dose polyethylene glycol plus oral simethicone regimen versus the conventional method for bowel preparation before colonoscopy. Participants will undergo history-taking, clinical examination, laboratory investigations, and colonoscopy. Patients will be randomly assigned to receive 4-L split-dose polyethylene glycol and bisacodyl + docusate sodium, a 2-L split-dose polyethylene glycol regimen plus oral simethicone, or 2-L split-dose polyethylene glycol alone as a control. Colonoscopy will be done 24 hrs after the start of medication. Researchers will assess the quality of the bowel preparation using the Aronchick bowel preparation scale. Researchers will also assess the number of adverse events and ask the patients about the ease of bowel preparation administration, tolerability of preparation regimen, and willingness to take the same agent again for a repeat colonoscopy in the future.
NCT06282367
Background and Aims: The quality of colonoscopy is critically influenced by bowel preparation. Polyethylene glycol (PEG) is considered the gold standard regimen for bowel preparation, however due to the necessity of large volume of patient's tolerance is impaired, especially in the elderly population. Lactulose has been adopted in a few centers as a novel alternative for colonoscopy preparation. This study aimed to investigate the efficacy-safety profile of a lactulose-based bowel preparation in comparison to PEG for colonoscopy. Methods: Prospective non-blinded comparative study, developed in two tertiary centers from July 2021 to April 2023. Outpatients undergoing colonoscopy were randomly divided into 2 groups: Group 1 (111 patients): PEG and Group 2 (111 patients): Lactulose. The following clinical outcomes were assessed for each group: degree of bowel clearance using the Boston Score, colorectal polyp detection rate, adenoma detection rate, tolerability and side effects.
NCT03290157
This study evaluates the impact of a SPA on Quality of bowel preparation for colonoscopy. Half of the patients receive regular paper based information on colonoscopy preparation (control), while the other half will use an additional SPA for colonoscopy preparation (coloprAPP).
NCT02618564
The objective of this study is to evaluate sennosides as an adjunct to sodium picosulfate magnesium citrate (Pico Salax) in preparation for colonoscopy. We will compare different doses and administration times. The primary outcome is number of bowel motions produced. Secondary outcomes include the quality of bowel cleansing and patient tolerability.
NCT02887014
To study the impact of providing specific verbal instructions in inpatients (and/or their relatives) undergoing colonoscopy on the quality of bowel preparation.
NCT02638558
Split-dose cleansing regimens for colonoscopies, independently from the type of laxative used, are now recommended over full (one day)-dose regimens from all the major guidelines. It is wellknown that splitting the dose (half of the dose the night before and half the day of the colonoscopy) is safe and guarantees a better cleansing of the colon and thus a higher chance of identifying mucosal lesions. This is crucial both in terms of achieving a high-quality colonoscopy and in terms of time and money saved. Still, there are some issues about compliance and tolerability with split-dose regimens. Two recent prospective works have shown that only a small number of patients (33%) chooses the split-dose regimen when the colonoscopy is scheduled before 10 a.m. and when patients are forced to used the split-dose, 1/7 did not comply with it, especially if the procedure is before 10 a.m. The most common concerns are about early wake-up, travel interruption and fear of incontinence. Both these papers state that strategies to reduce this noncompliance are needed. The investigators aim to prove whether an "active action" (an oral explanation before the colonoscopy about why split-dose regimens are better) may improve patients' compliance in endoscopies scheduled in the early morning (from 8 to 10 a.m).
NCT02073552
The purpose of the study is to assess whether a low volume polyethylene glycol (PEG) plus ascorbic acid based bowel preparation for colonoscopy is not inferior to a large volume polyethylene glycol preparation in subjects with past history of poor bowel preparation
NCT02410720
Colonoscopy is the preferred procedure to investigate any large-bowel disease in adults and children. In addition, colonoscopy is the current gold standard for colorectal cancer screening due to its high diagnostic capabilities and its unique feature that permits sampling and removal of pathology. For optimal performance and visualization of details, however, an adequate bowel preparation is essential. Inadequate bowel preparation is associated with cancelled procedures, prolonged procedure time, incomplete examination, increased cost and possibly complications, physician frustration and patient anxiety, but most importantly serving to impede colorectal cancer screening and surveillance. A good bowel preparation would need a solution with a reasonable volume, acceptable taste, minimal diet restrictions, and easy to follow instructions; and would also need patients' adherence to the instructions and diet restrictions. Noncompliance of patients to the diet restrictions, the starting day of diet, the timing of drinking the solution, and other instructions play an important role in rendering the colon preparation inadequate. Aim: The investigators aim, at assessing the influence of having a reminder mobile application on the compliance and adherence to instructions and diet and consequently on the quality of colon preparation. Hypothesis: The investigators' hypothesis is that patients having a customized mobile App reminding them systematically about instruction and time of intake of the preparation will have a better adherence to the prep protocol and likely on the quality preparation than those given written and verbal instructions in clinic.
NCT01887470
The purpose of the study is to determine the efficacy of 2 regimens of lactulose as a preparation for colonoscopy.