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The Utility of Cap Colonoscopy in Increasing Adenoma Detection Rate

The Utility of Cap Colonoscopy in Increasing Adenoma Detection Rate

Status
Terminated
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01601431
Enrollment
440
Registered
2012-05-18
Start date
2012-03-29
Completion date
2015-02-02
Last updated
2018-06-07

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

Conditions

Adenoma

Keywords

Screening colonoscopy

Brief summary

This is a research study about the usefulness of transparent cap during screening colonoscopy. The purpose of the research is to test the usefulness of adding small cap to the tip of the colonoscope. the investigators hypothesis is that Cap assisted colonoscopy will improve the detection of adenomatous polyps (polyps which can become colon cancer later on) in comparison to the standard colonoscopy.

Detailed description

This is a prospective, randomized trial comparing the adenoma detection rate between Hispanic patients undergoing a screening colonoscopy with a conventional colonoscope or with a cap-assisted colonoscopy. The aims of the study are: 1. Compare ADR between Hispanic patients undergoing a screening colonoscopy with and without cap. 2. Compare the overall polyp detection rate between Hispanic patients undergoing a screening colonoscopy with and without cap. 3. Compare the cecal intubation rate and cecal intubation time between standard colonoscopy and cap assisted colonoscopy. 4. Compare the complication rate between standard colonoscopy and cap assisted colonoscopy.

Interventions

DEVICECap Assisted Colonoscopy

Plastic transparent cap added to the distal end of the colonoscope which can increase adenoma detection rate

Regular colonoscopy as per standard clinical guidelines

Sponsors

Texas Tech University Health Sciences Center, El Paso
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
Yes

Inclusion criteria

* Adult Hispanic patients (18-80) who are undergoing colonoscopy for screening or surveillance purposes.

Exclusion criteria

1. Patients younger than 18 yrs old or older than 80 yrs. 2. Patients with a prior history of colonic surgeries 3. Patient with Crohns colitis or ulcerative colitis. 4. Patient with prior history of colon cancer 5. Patient with poor bowel preparation

Design outcomes

Primary

MeasureTime frameDescription
ADR Differences in Hispanic Patients Undergoing a Screening Colonoscopy With and Without Cap.1 year1\. Compare ADR between Hispanic patients undergoing a screening colonoscopy with and without cap.

Countries

United States

Participant flow

Participants by arm

ArmCount
Cap Assisted Colonoscopy
Cap Assisted Colonoscopy uses a Cap which is a transparent hood which is attached to the distal end of the colonscope and allows depressing the colon folds in order to visualize hidden polyps behind the folds. Cap Assisted Colonoscopy: Plastic transparent cap added to the distal end of the colonoscope which can increase adenoma detection rate
223
Conventional Colonoscopy
A conventional colonoscopy does not use a Cap in order to perform the procedure Cap Assisted Colonoscopy: Plastic transparent cap added to the distal end of the colonoscope which can increase adenoma detection rate Conventional colonoscopy: Regular colonoscopy as per standard clinical guidelines
217
Total440

Baseline characteristics

CharacteristicCap Assisted ColonoscopyConventional ColonoscopyTotal
Adenoma Detection Rate66 Participants69 Participants135 Participants
Advanced adenoma detection rate21 Participants10 Participants31 Participants
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
3 Participants5 Participants8 Participants
Age, Categorical
Between 18 and 65 years
220 Participants212 Participants432 Participants
Age, Continuous59.48 years
STANDARD_DEVIATION 7.28
60.08 years
STANDARD_DEVIATION 7.26
60 years
STANDARD_DEVIATION 7
Polyp detection rate87 Participants92 Participants179 Participants
Sex: Female, Male
Female
146 Participants155 Participants301 Participants
Sex: Female, Male
Male
77 Participants62 Participants139 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 2110 / 214
other
Total, other adverse events
0 / 2110 / 214
serious
Total, serious adverse events
1 / 2110 / 214

Outcome results

Primary

ADR Differences in Hispanic Patients Undergoing a Screening Colonoscopy With and Without Cap.

1\. Compare ADR between Hispanic patients undergoing a screening colonoscopy with and without cap.

Time frame: 1 year

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cap Assisted ColonoscopyADR Differences in Hispanic Patients Undergoing a Screening Colonoscopy With and Without Cap.66 Participants
Conventional ColonoscopyADR Differences in Hispanic Patients Undergoing a Screening Colonoscopy With and Without Cap.69 Participants

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