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Study of Efficacy and Tolerability of Various Bowel Preps in Diabetic Patients

Efficacy and Tolerability of Various Bowel Preparations in Diabetic Patients: A Randomized Controlled Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01533688
Enrollment
212
Registered
2012-02-15
Start date
2011-10-31
Completion date
2016-10-31
Last updated
2018-09-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diabetes Mellitus

Brief summary

Poor bowel preparation and patient intolerance of the procedure are the most important factors contributing to the limitation of colonoscopy. Inadequate bowel cleansing results in incomplete testing, increased potential to miss lesions, increased cost, and decreased patient satisfaction. The investigators hope to gain better insight into which bowel preparation works best in diabetic patients and hence would increase patient satisfaction, tolerability of the bowel preparation and decrease overall costs. The investigators will investigate which bowel preparation for colonoscopy will work optimally in diabetic patients using three different regimens.

Interventions

DRUGGolytely (polyethylene glycol electrolyte lavage solution) and placebo

4 liters of polyethylene glycol electrolyte lavage solution (PEG-ELS-(GoLytely))+ placebo given the evening prior to the colonoscopy

DRUGsplit dose of Golytely (polyethylene glycol electrolyte lavage solution) + placebo

split dose (2 L taken the evening before and 2 L taken the morning of the colonoscopy) of 4 liters Golytely + placebo

DRUGsplit dose of Golytely (polyethylene glycol electrolyte lavage solution) and bisacodyl

split dose ( 2 L taken the evening before and 2 L taken the morning of the colonoscopy) of 4 liters of Golytely + bisacodyl 10 mg

Sponsors

University of Oklahoma
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
Yes

Inclusion criteria

* adult diabetic outpatients referred for elective colonoscopy

Exclusion criteria

* patients \< 18 years of age or \> 75 yrs of age, * known or suspected pregnancy, * known or suspected renal failure, * unstable angina, * acute coronary syndrome, * decompensated congestive heart failure, * decompensated liver failure, * known or suspected bowel obstruction, * major psychiatric illness, * solid organ transplant patients, * known allergies to PEG-ELS or bisacodyl, * prior alimentary tract surgery or refusal to consent to the study.

Design outcomes

Primary

MeasureTime frameDescription
Measure the % of Participants With Effective (How Well the Colon is Cleansed Using the Validated Boston Bowel Preparation Scale) for Various Bowel Preparations for Colonoscopy.Day 1The investigators will measure the number/% of participants who will have good to excellent bowel preparations defined by the Boston Bowel Prep Scale(BBPS) with a score of 6 or more, rated by blinded colonoscopist.

Secondary

MeasureTime frameDescription
Measure of Patients Who Develop (Tolerance)Side Effects of Taking Bowel Preparations.24 hoursNumber of Participants Who Developed Side Effects of Taking Bowel Preparations

Countries

United States

Participant flow

Participants by arm

ArmCount
Golytely + Placebo
4 liters of polyethylene glycol electrolyte lavage solution (PEG-ELS-(GoLytely)+ placebo pill Golytely (polyethylene glycol electrolyte lavage solution) and placebo: 4 liters of polyethylene glycol electrolyte lavage solution (PEG-ELS-(GoLytely))+ placebo given the evening prior to the colonoscopy
63
Golytely Split + Placebo
split dose(2 L day before procedure and 2 L day of procedure) of 4 liters of Golytely + placebo pill split dose of Golytely (polyethylene glycol electrolyte lavage solution) + placebo: split dose (2 L taken the evening before and 2 L taken the morning of the colonoscopy) of 4 liters Golytely + placebo
60
Golytely Split + Bisacodyl
split dose (2 L day prior to procedure and 2 L day of procedure) of 4 liters of Golytely + bisacodyl 10 mg split dose of Golytely (polyethylene glycol electrolyte lavage solution) and bisacodyl: split dose ( 2 L taken the evening before and 2 L taken the morning of the colonoscopy) of 4 liters of Golytely + bisacodyl 10 mg
63
Total186

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyHad colonoscopy at outside hospital232
Overall StudyMedically unstable133
Overall StudyWithdrawal by Subject543

Baseline characteristics

CharacteristicTotalGolytely + PlaceboGolytely Split + PlaceboGolytely Split + Bisacodyl
Age, Continuous63.5 years
STANDARD_DEVIATION 6.8
64.7 years
STANDARD_DEVIATION 6.4
62.8 years
STANDARD_DEVIATION 7.2
63.2 years
STANDARD_DEVIATION 6.7
Race/Ethnicity, Customized
Other
49 Participants22 Participants15 Participants12 Participants
Race/Ethnicity, Customized
White race
137 Participants41 Participants45 Participants51 Participants
Region of Enrollment
United States
186 Participants63 Participants60 Participants63 Participants
Sex: Female, Male
Female
8 Participants2 Participants1 Participants5 Participants
Sex: Female, Male
Male
178 Participants61 Participants59 Participants58 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
24 / 6327 / 6028 / 63
serious
Total, serious adverse events
0 / 630 / 600 / 63

Outcome results

Primary

Measure the % of Participants With Effective (How Well the Colon is Cleansed Using the Validated Boston Bowel Preparation Scale) for Various Bowel Preparations for Colonoscopy.

The investigators will measure the number/% of participants who will have good to excellent bowel preparations defined by the Boston Bowel Prep Scale(BBPS) with a score of 6 or more, rated by blinded colonoscopist.

Time frame: Day 1

Population: We have missing data regarding reporting of Boston bowel preparation scores (BBPS), some providers didn't provide the BBPS and provided only subjective assessment of the bowel preparation (for example, good or excellent)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Golytely + PlaceboMeasure the % of Participants With Effective (How Well the Colon is Cleansed Using the Validated Boston Bowel Preparation Scale) for Various Bowel Preparations for Colonoscopy.42 Participants
Golytely Split + PlaceboMeasure the % of Participants With Effective (How Well the Colon is Cleansed Using the Validated Boston Bowel Preparation Scale) for Various Bowel Preparations for Colonoscopy.50 Participants
Golytely Split + BisacodylMeasure the % of Participants With Effective (How Well the Colon is Cleansed Using the Validated Boston Bowel Preparation Scale) for Various Bowel Preparations for Colonoscopy.47 Participants
Secondary

Measure of Patients Who Develop (Tolerance)Side Effects of Taking Bowel Preparations.

Number of Participants Who Developed Side Effects of Taking Bowel Preparations

Time frame: 24 hours

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Golytely + PlaceboMeasure of Patients Who Develop (Tolerance)Side Effects of Taking Bowel Preparations.24 Participants
Golytely Split + PlaceboMeasure of Patients Who Develop (Tolerance)Side Effects of Taking Bowel Preparations.28 Participants
Golytely Split + BisacodylMeasure of Patients Who Develop (Tolerance)Side Effects of Taking Bowel Preparations.28 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026