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A Prospective Single-Blinded Randomized Trial Comparing Colonoscopic Preparation at Different Time

NCT00155415 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 120

Last updated 2008-12-02

No results posted yet for this study

Summary

Colorectal cancer (CRC) is the leading cause of cancer death not only in the Western countries but also in Taiwan. Colonoscopy is now gradually accepted as one of the powerful tool for colorectal cancer screening. Not only for survey after positive fecal test, it is also applied as primary screening modality for CRC screening.Colon cleansing before colonoscopy thus becomes critically important and inadequate preparation may lead to low diagnostic yield with missed lesions, increased risk of complication and prolonged procedure time. Though the importance of good colon preparation can not be over-emphasized, diet control before colonoscopy and ingestion of large amount of lavage solution remain a significant hurdle to overcome and investigators continue to seek for the ideal colon preparation with respect to quality and examinee satisfaction. After the introduction of polyethylene glycol electrolyte lavage solution (PEG-ELS) for bowel preparation before colon procedures, its safety was well documented and the efficacy of colon cleansing was proven efficient. The timing of ingesting PEG-ELS is different between institutes and some ingest PEG-ELS as a whole at the night before colonoscopic examination and some ingested in split-dose manner which ingest half of the solution at previous night and remaining on the day of examination. Some institutes ask examinee to receive lavage solution on the day of examination. The manufacturer advices start taking medication on the day before the investigation according to their printed instruction on the package of PEG-ELS. Though there were a lot of studies that conducted to describe the result of colon cleansing in different fashion, the result is still controversial. This prospective, randomized, single-blinded trail evaluated and compared the efficacy of colon preparation at two timing of colon preparation, namely, in previous night or on the day of colonoscopic examination. In this study, we enrolled those who have already colon neoplasia detected during voluntary routine health check-up and received second colonoscopic examination for either elective polypectomy or endoscopic mucosectomy (EMR). We used not only the cleansing condition as a reference of adequate preparation; we also compared the diagnostic yield of lesion number as an objective comparator between these two methods.

Conditions

  • Colonoscopy
  • Colon Neoplasm

Interventions

BEHAVIORAL

Different timing of taking polyethylene glycol(PEG)

Sponsors & Collaborators

  • National Taiwan University Hospital

    lead OTHER

Principal Investigators

  • Han-Mo Chiu, M.D. · National Taiwan University Hospital

Study Design

Allocation
RANDOMIZED
Purpose
DIAGNOSTIC
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
20 Years
Max Age
85 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2005-04-30
Primary Completion
2005-09-30
Completion
2005-09-30

Countries

  • Taiwan

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00155415 on ClinicalTrials.gov