Clinical trials: Chromoendoscopy
Colorectal Polyp
Validation of the NICE Classification Using Pentax Chromoendoscopy
Colorectal cancer (CRC) is the most frequent gastrointestinal tumor and the second cause of cancer related death. Colonoscopy is currently the recommended method for detection of polyps and cancers in the colon.
- Trial name
- NCT03155308
- Testing
- Pentax chromoendoscopy (i-scan and Optical Enhancement)
- Where
- Ecuador
- Volunteers
- 95 people, healthy volunteers welcome
- Sponsor
- Instituto Ecuatoriano de Enfermedades Digestivas
Stomach Neoplasms, Metaplasia
Acetic Acid Chromoendoscopy to Judge Gastric Intestinal Metaplasia
The presence and the extent of gastric intestinal metaplasia(IM) is a good indicator of high risk group of gastric cancer. Many methods was developed to survey it, including multiple gastric biopsy or methylene blue…
- Trial name
- IM (NCT01499576)
- Testing
- Acetic acid chromoendoscopy
- Where
- South Korea
- Volunteers
- 126 people, healthy volunteers welcome
- Sponsor
- Konyang University Hospital
Colorectal Polyps
Virtual Chromoendoscopy for Distal Polyps
To assess the accuracy of predicting histology with virtual chromoendoscopy for distal colorectal polyps according to the ASGE PIVI statement.
- Trial name
- NCT02217449
- Testing
- Prediction of histology
- Where
- Germany
- Volunteers
- 230 people, healthy volunteers welcome
- Sponsor
- University of Erlangen-Nürnberg Medical School
Colorectal Neoplasms
Comparative Efficacy of Water & Indigo Carmine vs. Water or Air Method on Adenoma Detection Rate (ADR) - a Randomized Controlled Trial (RCT)
Adenoma detection rate (ADR) is a quality indicator of colonoscopy performed for colorectal cancer screening. Population studies have shown that traditional air colonoscopy fails to eliminate post screening colonoscopy cancers or…
- Trial name
- NCT01607255
- Testing
- Indigo carmine, water (exchange) method, water (exchange) plus dye method
- Where
- United States
- Volunteers
- 480 people, healthy volunteers welcome
- Sponsor
- VA Office of Research and Development
Chromoendoscopy
Chromocolonoscopy With Food-grade Dyes
Previous with methylene blue suggested that oral administration may be superior to conventional spray catheters. The main advantages claimed were better staining due to longer exposure to the dye, more uniform staining due to…
- Trial name
- NCT02631798
- Testing
- Food grade dye mucosal staining
- Where
- Germany
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University Hospital Schleswig-Holstein
FRENCH STUDY
Narrow-Band Imaging (NBI) Versus Lugol Chromoendoscopy in the Detection of Oesophagus Squamous Cell Carcinoma in High Risk Population
Narrow-Band Imaging (NBI) is as sensitive as Lugol chromoendoscopy to detect oesophageal squamous cell carcinoma (SCC) and appears more specific than Lugol chromoendoscopy in expert centres but its specificity in current practice…
- Trial name
- NCT04224896
- Testing
- UPPER ENDOSCOPY
- Volunteers
- 335 people, healthy volunteers welcome
- Sponsor
- Hôpital Edouard Herriot
Esophageal Squamous Cell Carcinoma
High-concentration Small-volume Versus Low-concentration Large-volume Iodine Solution for Esophageal Chromoendoscopy
This clinical trial aims to test the participants' tolerance for different concentration iodine solutions during esophageal chromoendoscopy.
- Trial name
- NCT06063941
- Testing
- 1% Lugol's iodine solution, 5% Lugol's iodine solution
- Where
- 5 sites in China
- Volunteers
- 450 people, healthy volunteers welcome
- Sponsor
- Xijing Hospital of Digestive Diseases
Colorectal Cancer, Colorectal Polyp
Accuracy for Predicting Deep Submucosal Invasion
The main aim of this study is to determine whether the assessment of the invasive pattern based on NBI with dual focus/magnification or BLI with magnification ± chromoendoscopy (NBI+CE) for predicting deep invasion is…
- Trial name
- NBIBLI (NCT03748667)
- Testing
- White light endoscopy (WLE), NBI/BLI +/- chromoendoscopy (NBIBLI +/- CE)
- Where
- 14 sites in United States, Japan and 1 more
- Volunteers
- 426 people, healthy volunteers welcome
- Sponsor
- Althaia Xarxa Assistencial Universitària de Manresa
Esophageal Neoplasms
Pronase Improves Efficacy of Chromoendoscopy Screening on Esophageal Cancer
Lugol's solution staining was regarded as a gold standard to detect early superficial lesion during esophageal cancer screening using endoscopy.
- Trial name
- NCT02030769
- Testing
- Pronase, Control
- Where
- China
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- Xijing Hospital of Digestive Diseases
Esophageal Squamous Cell Carcinoma
The Efficacy of N-acetylcysteine on Alleviating Symptom Caused by Lugol Chromoendoscopy
Lugol chromoendoscopy is essential in detecting and characterizing squamous cell carcinoma of esophagus. Esophageal irritating symptom has been reported as an common adverse event, which could be alleviated by sodium thiosulfate…
- Trial name
- NCT04764643
- Testing
- N-acetylcysteine solution, sodium thiosulfate solution
- Where
- China
- Volunteers
- 140 people, healthy volunteers welcome
- Sponsor
- Xijing Hospital of Digestive Diseases
Colorectal Polyp
Prediction of Diminutive/Small Polyp Histology: Didactic vs. Computer-based Training
Bowel cancer is one of the most common cancers and the best method of diagnosing it is through endoscopic examination of the bowel (colonoscopy).
- Trial name
- NCT03843567
- Testing
- Endoscopic characterisation training
- Volunteers
- 160 people, healthy volunteers welcome
- Sponsor
- University of Birmingham
Colorectal Cancer, Colorectal Cancer Stage I
Web-based Learning Module on Optical Diagnosis of Early Colorectal Cancer
International guidelines recommend deciding the treatment of colorectal lesions based on the estimated histology by endoscopic optical diagnosis.
- Trial name
- LODIP (NCT05663788)
- Testing
- E-learning module
- Where
- 12 sites in United States, Japan and 2 more
- Volunteers
- 166 people, healthy volunteers welcome
- Sponsor
- Althaia Xarxa Assistencial Universitària de Manresa
Polyps
Experience and Enhancement: Improving Colonoscopic Polyp Detection
The study looks at 2 hypotheses in 2 patient groups: 1. Are more experienced endoscopists better at detecting subtle lesions (polyps) on the lining of the colon (large bowel) than less experienced endoscopists? 2.
- Trial name
- NCT00237276
- Testing
- colonoscopy
- Where
- United Kingdom
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- London North West Healthcare NHS Trust
Colorectal Polyp
Electronic Chromoendoscopy for Polyp Characterization
To assess the accuracy of predicting histology of colorectal polyps with electronic chromoendoscopy.
- Trial name
- NCT03118856
- Testing
- Prediction of Histology
- Where
- Germany
- Volunteers
- 230 people, healthy volunteers welcome
- Sponsor
- University of Erlangen-Nürnberg Medical School
Colorectal Neoplasms
Chromoendoscopy or Narrow Band Imaging (NBI) for Improving Adenoma Detection in Colonoscopy
Narrow band imaging or electronic chromoendoscopy might provide similar adenoma detection capabilities while limiting time spent when compared to conventional chromoendoscopy method.
- Trial name
- NCT04192929
- Testing
- Narrow band imaging, Chromoendoscopy, High definition white light endoscopy
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Indiana University
Gastrointestinal Neoplasms, Abnormality of Enteric Nervous System Morphology
Endoscopic Vital Nerve Staining in Gastrointestinal Diseases
In this study, methylene blue (MB) was used as vital nerve staining agent. During gastroenteroscopy, mucosal nerve staining was achieved by endoscopic submucosal injection of MB solution.
- Trial name
- NCT05232357
- Testing
- Sodium thiosulfate and Methylene blue solution
- Where
- China
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Affiliated Hospital to Academy of Military Medical Sciences
Ulcerative Colitis, Crohn's Colitis
RCT: HDWL vs Virtual Chromoendoscopy in the Detection of Intraepithelial Neoplasia in Longstanding Colitis
Colitis is inflammation of the large bowel and it is often caused by conditions known as ulcerative colitis and Crohn's disease.
- Trial name
- VIRTUOSO (NCT02822352)
- Testing
- Chromoendoscopy
- Where
- United Kingdom
- Volunteers
- 204 people, healthy volunteers welcome
- Sponsor
- Portsmouth Hospitals NHS Trust
Mucosal Irritation, Image Quality
Lower Lugol's Solution Concentration on Reducing the Adverse Symptoms of Chromoendoscopy With Iodine Staining
This study was to test an optimal concentration of Lugol's solution which can reduce the mucosal irritation and provide high image quality to ensure endoscopy examination by a randomized blinded controlled trial.
- Trial name
- NCT03180944
- Testing
- 1.2% Lugol's solution, 1.0% Lugol's solution, 0.8% Lugol's solution
- Where
- China
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Shandong University
Colorectal Neoplasm
Efficacy of Cap-assisted Chromoendoscopy as a Screening Test for Colorectal Neoplasm Using Web-based Research Network
The investigators plan to conduct a multi-center, randomized controlled trial to investigate the efficacy of cap-assisted chromoendoscopy as a screening test for detection of colorectal polyp.
- Trial name
- CapACE (NCT01112280)
- Testing
- cap-assisted chromoendoscopy
- Where
- 14 sites in South Korea
- Volunteers
- 1,905 people, healthy volunteers welcome
- Sponsor
- Korean Association for the Study of Intestinal Diseases