Clinical trial · Interventional
Impact of Experience on Results With the Third Eye Retroscope
Impact of Experience With the Third Eye Retroscope on Detection Rates and Withdrawal Times During Colonoscopy
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
The Third Eye Retroscope is a device that can be used with a colonoscope to improve the ability of a physician to see areas of the colon that may be hidden from the view of the colonoscope. Previous studies have shown that physicians are able to detect additional polyps when they use the device along with the colonoscope. The purpose of this study is to determine whether physicians can detect greater numbers of additional polyps as they gain in experience with the device.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Colorectal Neoplasms | Colorectal Neoplasm | ONTOLOGY_EXACT | 0.98 |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Third Eye Retroscope | Device | — | UNRESOLVED |
Design
Arms and outcomes
Arms (1)
- type
- EXPERIMENTAL
- label
- Third Eye Retroscope
- description
- All subjects underwent the same intervention, consisting of examination of the colon using a colonoscope along with the Third Eye Retroscope device, with removal of any polyps that were detected during the procedure.
- interventionNames
- Device: Third Eye Retroscope
Primary outcomes (2)
- measure
- Detection Rates for Adenomas
- timeFrame
- During the colonoscopy procedure (up to 1 hour, average 25 minutes)
- description
- Adenomas detected with the colonoscope alone vs. with the Retroscope
- measure
- Detection Rates for All Polyps
- timeFrame
- During the colonoscopy procedure (up to 1 hour, average 25 minutes)
- description
Eligibility
Eligibility (as posted)
- Sex
- All
Show eligibility criteria text
Inclusion Criteria: 1. The patient is undergoing colonoscopy for screening, for surveillance in follow-up of previous polypectomy or for diagnostic workup; 2. The patient must understand and provide written consent for the procedure. Exclusion Criteria: 1. Patients with a history of colonic resection; 2. Patients with inflammatory bowel disease; 3. Patients with a personal history of polyposis syndrome; 4. Patients with suspected chronic stricture potentially precluding complete colonoscopy; 5. Patients with diverticulitis or toxic megacolon; 6. Patients with a history of radiation therapy to abdomen or pelvis. 7. Patients who are currently enrolled in another clinical investigation in which the intervention might compromise the safety of the patient's participation in this study.
References
Publications (1)
- RESULTDeMarco DC, Odstrcil E, Lara LF, Bass D, Herdman C, Kinney T, Gupta K, Wolf L, Dewar T, Deas TM, Mehta MK, Anwer MB, Pellish R, Hamilton JK, Polter D, Reddy KG, Hanan I. Impact of experience with a retrograde-viewing device on adenoma detection rates and withdrawal times during colonoscopy: the Third Eye Retroscope study group. Gastrointest Endosc. 2010 Mar;71(3):542-50. doi: 10.1016/j.gie.2009.12.021. PMID 20189513