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RecruitingNCT02332772Updated May 13, 2019

Prospective Study of Colonoscopic Resection of Large Polyps and Flat Lesions

An observational study in Colon Polyps, sponsored by M.D. Anderson Cancer Center. Recruiting at 1 site in United States. Per ClinicalTrials.gov, last updated 2019-05-13.

Sponsored by M.D. Anderson Cancer Center · Observational

From the registry’s dates

  • Primary completion was expected by Apr 2025, 1 year 6 months ago, but the record still lists the study as recruiting.
  • Started Apr 2015; still recruiting 11 years 6 months later.
Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
10,000
Sex
All
01

Study summary

With this study, the investigators plan to review the performance of colonoscopic resection of large (> 1 cm) and flat lesions in the colon. The findings will help us define the role of colonoscopic resection of colon polyps and flat lesions and identity areas for improvement. The data will be used for continuing quality improvement and presenting our outcomes at academic meetings and publishing our results in peer reviewed journals.

Read the detailed description

Our goal is to collect data from our endoscopy reports (Endoscopy Clinic database) and electronic medical record system (Clinic Station) to complete a descriptive analysis of the 1) demographics, 2) colonoscopy resection procedure, and 3) outcome of resection - immediate and delayed complications, tumor recurrence, and cancer during follow-up 01/01/2014 - 12/31/2025.

Specific variable to be reviewed:

  1. Patient Demographics: Age, Sex, Race, Height, Weight, BMI (patient privacy will be acknowledged).
  2. Indications for Colonoscopy (screening, surveillance, symptoms or tertiary referral [EMR])
  3. Comorbid conditions: cancer and surgical history, medical conditions.
  4. Colonoscopy procedure: Quality of colon preparation (using the Boston Bowel Preparation Scale) 0 - 3 for each section of the colon (Ascending, Transverse, Descending and Total Colon), cecal intubation rate, cecal intubation and total procedure time, type of colonoscope (if CO2 was used in the procedure and techniques for colonoscope insertion, including position changes.
  5. Examination findings: Number of polyps and nature of polyps removed (site, size, surface, vascular pattern); type of polyp removed (serrated and sessile (flat); optical features and histology of polyps.
  6. Resection techniques: Biopsy, snare resection, endoscopic mucosal resection, endoscopic submucosal dissection etc.
  7. Including Pathology report findings so that a comparison can be made of the optical features and actual pathology report.
  8. Outcomes of colonoscopy: Complete or incomplete resection, local recurrence, need for surgery, etc
  9. Outcome of colonoscopy: Complications (Bleeding and perforation).
02

Conditions studied

  • Colon Polyps

Keywords

  • Colon Polyps
  • Large polyps
  • Flat lesions
  • Endoscopy
  • Colonoscopic resection
  • Colonoscopy
  • Data review
  • Data collection
03

In context

Polyps

385 studies on the registry are indexed under Polyps; 59 are open to participants now.

This study's planned enrollment of 10,000 is above the median of 271 across 128 observational studies indexed under Polyps.

Browse Polyps studies →

Lead sponsor

M.D. Anderson Cancer Center is the lead sponsor of 2,999 studies on the registry; 581 are open to participants now.

Of its 599 completed or terminated interventional studies of FDA-regulated products, 402 (67%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Probability sample

Study population

Patients undergoing endoscopy at MD Anderson Cancer Center in Houston, Texas

Inclusion criteria

  1. All Patients who have been referred for endoscopic resection of large polyps (>1 cm) and flat lesions.

Exclusion criteria

Exclusion Criteria:

N/A

05

Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
10,000 participants (estimated)
Patient registry
No

Groups and cohorts

  • Data Collection Endoscopy of Colon Polyps

    Data collected from endoscopy reports and electronic medical record system to complete a descriptive analysis of the 1) demographics, 2) colonoscopy resection procedure, and 3) outcome of resection - immediate and delayed complications, tumor recurrence, and cancer during follow-up 01/01/2014 - 12/31/2025.

    Other: Data Collection

Interventions

  • OtherData Collection

    Data collected from endoscopy procedures.

06

What researchers measure

Primary outcomes

  1. Composite Data Review of Colonoscopic Resection of Colon Polyps and Flat Lesions

    Descriptive tables presented for demographics, polyp counts, colonoscopy experiences, polyp removals and findings. Proportions presented with 95% confidence intervals. Continuous values such as age and times presented with median, minimum and maximum. Comparisons among patient subgroups made with chi-square tests for categorical data and t-tests or the non-parametric alternative, Wilcoxon tests, to compare continuous measures. Graphics such as box plots, trellis plots, bar graphs, or stacked bar graphs used to describe distributions overall and among subgroups.

    Time frame: 1 day

07

Study locations

1 of 1 sites recruiting
  • University of Texas MD Anderson Cancer Center
    Houston, Texas 77030, United States
    Recruiting
08

References and documents

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 13, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02332772
Lead sponsor
M.D. Anderson Cancer Center
Responsible party
Sponsor
First posted
Jan 7, 2015
Start date
Apr 2015
Primary completion
Apr 2025 (estimated)
Completion
Apr 2025 (estimated)
Last update
May 13, 2019

Study contacts

Gottumukkala S. Raju, MD
Contact
713-563-4377
Gottumukkala S. Raju, MD
principal investigator · M.D. Anderson Cancer Center

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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