Ignite Creation Date:
2025-12-26 @ 1:19 PM
Ignite Modification Date:
2026-02-28 @ 10:51 PM
Study NCT ID:
NCT01442506
Status:
UNKNOWN
Last Update Posted:
2011-09-28
First Post:
2011-09-21
Is NOT Gene Therapy:
True
Has Adverse Events:
False
Brief Title:
Acetic Acid Guided Biopsies Compared With High Definition Endoscopy in the Detection of Barrett's Esophagus
Sponsor:
Johannes Gutenberg University Mainz
Organization:
Study Overview
Official Title:
Acetic Acid Guided Biopsies Compared With High Definition Endoscopy
Status:
UNKNOWN
Status Verified Date:
2011-09
Last Known Status:
RECRUITING
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
Specialized columnar epithelium (SCE) is considered as pathognomonic for Barrett's esophagus. Chromoendoscopy after local acetic acid application enables recognition of the mucosal surface architecture. The new available EPKi processor (Pentax, Japan) enables HD+ resolution above HDTV standard. Aim of the study is to test the efficacy of HD+ endoscopy in conjunction with i-Scan or acetic acid to diagnose Barrett's esophagus. The primary endpoint of the current prospective study is to investigate the diagnostic yield of virtual chromoendoscopy using the i scan function as compared to acetic acid chromoendoscopy and 4-quadrant biopsies.
Patients with visible columnar lined lower esophagus (CLE) are included. After standardized PPI therapy (14 days; standard dosage) patients were randomized at a 1:1 ratio to undergo either chromoendoscopy in conjunction with acetic acid application or i-Scan. Biopsies are taken in a targeted fashion using acetic acid or i scan and afterwards 4-quadrant biopsies are taken.
Patients with visible columnar lined lower esophagus (CLE) are included. After standardized PPI therapy (14 days; standard dosage) patients were randomized at a 1:1 ratio to undergo either chromoendoscopy in conjunction with acetic acid application or i-Scan. Biopsies are taken in a targeted fashion using acetic acid or i scan and afterwards 4-quadrant biopsies are taken.
Detailed Description:
Specialized columnar epithelium (SCE) is considered as pathognomonic for Barrett's esophagus and can be recognized by new endoscopic techniques. Aim of the study is to test the efficacy of HD+ endoscopy in conjunction with i-scan (newly developed post processing digital filter) or chromoendoscopy (acetic acid) to diagnose Barrett's esophagus.
Patients with visible columnar lined lower esophagus (CLE) or known Barrett's esophagus are included. After standardized PPI therapy (14 days; standard dosage) patients are randomized at a 1:1 ratio to undergo either chromoendoscopy in conjunction with acetic acid application (10-15ml; 1.5%) or HD+ endoscopy in conjunction with i-scan. Mucosal surface structure within CLE is graduated according to Guelrud's classification (type 1-2: endoscopic prediction: gastric epithelium; type 3-4: Barrett's epithelium). Biopsies are taken in a targeted fashion (type 1-4) in both groups and subsequently 4-quadrant biopsies were taken. Primary outcome analysis's to investigate the diagnostic yield of the different biopsy protocols.
Patients with visible columnar lined lower esophagus (CLE) or known Barrett's esophagus are included. After standardized PPI therapy (14 days; standard dosage) patients are randomized at a 1:1 ratio to undergo either chromoendoscopy in conjunction with acetic acid application (10-15ml; 1.5%) or HD+ endoscopy in conjunction with i-scan. Mucosal surface structure within CLE is graduated according to Guelrud's classification (type 1-2: endoscopic prediction: gastric epithelium; type 3-4: Barrett's epithelium). Biopsies are taken in a targeted fashion (type 1-4) in both groups and subsequently 4-quadrant biopsies were taken. Primary outcome analysis's to investigate the diagnostic yield of the different biopsy protocols.
Study Oversight
Has Oversight DMC:
False
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?: