Clinical trials: Gastrointestinal Polyps
Colorectal Neoplasm, Colonic Polyps
Clinical Study of Real Time Colorectal Polyp Diagnosis During Colonoscopy - the VALID Colonoscopy Study
The investigators hypothesize that high definition colonoscopy with close focus narrow band imaging features has a high diagnostic accuracy for colorectal polyp histology, and can replace formal pathologic assessment in cases of…
- Trial name
- VALID (NCT01288833)
- Testing
- Close focus HD NBI Colonoscopy System
- Where
- 2 sites in United States
- Volunteers
- 558 people, healthy volunteers welcome
- Sponsor
- VA Palo Alto Health Care System
Colonic Neoplasms, Colonic Polyps
Strigolactones and Dysplastic Colonic Lesions or Cancer
The purpose of this study is to determine the effects of the plant hormones strigolactones, on cell cultures of colonic polyps and colorectal cancer.
- Trial name
- NCT02824835
- Testing
- biopsy during colonoscopy
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Meir Medical Center
Colo-rectal Cancer, Colon Polyp
Optimizing Timing of Follow-up Colonoscopy
Overall Objective: To optimize timing of surveillance colonoscopy. Principal research question and specific aims: To assess the impact of access to a hand-held application on the timing of surveillance colonoscopy.
- Conditions
- Colo-rectal Cancer, Colon Polyp, Colonic Polyp, Rectal Polyp
- Trial name
- NCT04889352
- Testing
- Access to colonoscopy web app
- Where
- 2 sites in Canada
- Volunteers
- 29 people, healthy volunteers welcome
- Sponsor
- University of Manitoba
Colorectal Cancer
Changes in Stem Cells of the Colon in Response to Increased Risk of Colorectal Cancer
Colorectal cancer is a common disease worldwide. Increasing evidence is demonstrating that colorectal cancers arise from 'cancer stem cells.' Stem cells in the colon reside at the bottom of thousands of microscopic crypts…
- Trial name
- NCT01075893
- Where
- 2 sites in United Kingdom
- Volunteers
- 11 people, healthy volunteers welcome
- Sponsor
- Newcastle University
Adenoma, Polyps
Prospective Trial to Compare ADR of G-EYE™ Colonoscopy With Standard Colonoscopy
The purpose of this study is to compare the adenoma detection rate (ADR) of the G-EYE™ colonoscopy with that of standard colonoscopy.
- Conditions
- Adenoma, Polyps, Colorectal Cancer
- Trial name
- NCT02545699
- Testing
- G-EYE™ Colonoscopy, Standard Colonoscopy
- Where
- Israel
- Volunteers
- 350 people, healthy volunteers welcome
- Sponsor
- Smart Medical Systems Ltd.
Colorectal Cancer, Precancerous Condition
Biological, Genetic, and Lifestyle Risk Factors for Developing Colorectal Adenomas or Polyps in Participants Undergoing Colonoscopy
RATIONALE: Collecting and storing samples of tissue, blood, and other body fluids to test in the laboratory and gathering information about health and lifestyle from participants may help doctors learn more about cancer risk…
- Trial name
- NCT00625066
- Testing
- biologic sample preservation procedure, cytology specimen collection procedure, medical chart review
- Where
- 4 sites in United States
- Volunteers
- 8,108 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University
Colorectal Neoplasms
Unprepped CT Colonography
It is our objective to improve the performance of CTC in the prepared colon, and to validate CTC in the unprepared colon for the detection of colorectal neoplasia.
- Trial name
- NCT00586053
- Where
- United States
- Volunteers
- 1,255 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Colon Cancer
Screening and Risk Factors of Colon Neoplasia
The investigators propose a screening population-based study to systematically evaluate the accuracy and clinical relevance of sDNA testing as a potential alternative to colonoscopy screening.
- Trial name
- NCT01647776
- Testing
- Stool DNA Test, biopsies of rectal and colon mucosa, Questionnaires
- Where
- United States
- Volunteers
- 3,315 people, healthy volunteers welcome
- Sponsor
- Case Comprehensive Cancer Center
Colonic Polyp, Colon Adenoma
Feasibility Study of a Novel Single Use Robotic Colonoscopy System
This is a single centre, non-randomized, tandem colonoscopy trial of the NISInspire-C System, followed immediately by a conventional colonoscope (CC).
- Conditions
- Colonic Polyp, Colon Adenoma, Colorectal Cancer
- Trial name
- NCT03979690
- Testing
- NISInspire-C System
- Where
- Hong Kong
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Bio-Medical Engineering (HK) Limited
Colorectal Cancer, Adenomatous Polyp of Colon
CRC Screening Using mSEPT9 (Methylated Septin 9) in Chinese Population
The purpose of this study is to evaluate the performance of the SEPT9 gene methylation assay in Colorectal cancer (CRC) high-risk population in Chinese hospitals using the opportunistic screening method.
- Conditions
- Colorectal Cancer, Adenomatous Polyp of Colon, Polyps, Other Disease/Injury
- Trial name
- RESEPT (NCT02540850)
- Where
- 4 sites in China
- Volunteers
- 1,031 people, healthy volunteers welcome
- Sponsor
- BioChain (Beijing) Science and Technology, Inc.
Colorectal Disorders, Colorectal Neoplasms
Comparison of the Left-Lateral Horizontal and Supine Positions for Colonoscopy Intervention: A Randomized Controlled Study
Objective: One of the most common technical difficulties during colonoscopy is passing through the fold of the sigmoid colon. Colonoscopy is commonly performed by endoscopists with the patient in the left lateral position.
- Conditions
- Colorectal Disorders, Colorectal Neoplasms, Colorectal Polyp, Colo-rectal Cancer
- Trial name
- NCT07517848
- Testing
- Colonoscopy after bowel cleansing
- Where
- Turkey (Türkiye)
- Volunteers
- 198 people, healthy volunteers welcome
- Sponsor
- Manisa Celal Bayar University
Colorectal Adenoma, Colorectal Polyp
Examining Techniques on Adenoma Miss Rate in Proximal Colon
The primary aim of this study is to explore the usefulness of re-examination and retroflexion on adenoma miss rate (AMR) in the proximal colon.
- Trial name
- SINOCOLO2017 (NCT03355443)
- Testing
- Retroflexion, Re-examination
- Where
- 3 sites in China
- Volunteers
- 600 people, healthy volunteers welcome
- Sponsor
- Changhai Hospital
Colorectal Adenoma, Colorectal Polyp
EndoRings Colonoscopy vs Standard Colonoscopy
The study aims to compare the results between a standard colonoscopy to a colonoscopy with an attachment on the distal end of the colonoscope.
- Conditions
- Colorectal Adenoma, Colorectal Polyp, Colon Cancer
- Trial name
- NCT03418662
- Testing
- EndoRings device
- Where
- United States
- Volunteers
- 592 people, healthy volunteers welcome
- Sponsor
- Indiana University
Colonic Polyps
GENESIS: Genetic Biopsy for Prediction of Surveillance Intervals After Endoscopic Resection of Colonic Polyps
Colorectal cancer ist the 2nd most leading cancer among men and women in germany. Screening colonoscopy has the potential to detect premalignant lesions.
- Trial name
- GENESIS (NCT02595645)
- Testing
- Polypectomy and NGS
- Where
- 4 sites in Austria, Germany
- Volunteers
- 101 people, healthy volunteers welcome
- Sponsor
- University of Ulm
Colorectal Cancer, Colon Polyp
Volatile Organic Compounds (VOCs) Profile in Colorectal Cancer Patients and Healthy Controls.
Volatile organic compounds (VOCs) are low molecular weight (<1 kDa) compounds which represent the final products of cell metabolism.
- Trial name
- NCT04217083
- Testing
- Breath sampling
- Where
- Italy
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Societa Italiana di Chirurgia ColoRettale
Colorectal Cancer, Colorectal Adenoma
Comparison of Expression of Carcinogenesis-related Molecular Markers in the Patients With Colon Cancer and Polyp
A study of carcinogenesis-related molecular markers in the patients with colorectal cancer and colorectal adenoma.
- Trial name
- NCT05638542
- Where
- South Korea
- Volunteers
- 582 people, healthy volunteers welcome
- Sponsor
- Seoul National University Bundang Hospital
Colonic Polyp, Colorectal Cancer
Computer Aided Diagnosis of Colorectal Polyps
The purpose of this study is to assess whether computer aided technology (CAD) can help in the diagnosis of polyps found the bowel compared with visual inspection alone and therefore whether it is beneficial in helping clinicians…
- Trial name
- EndoBrain (NCT04510545)
- Testing
- Endobrain, Computer Aided Diagnosis (CAD)
- Where
- United Kingdom
- Volunteers
- 89 people, healthy volunteers welcome
- Sponsor
- King's College Hospital NHS Trust
Colorectal Adenoma, Colorectal Polyp
Validation of the Global Polypectomy Assessment Tool (GPAT)
Colorectal polypectomy is offten incompletely performed with high variability between endoscopists, resulting in interval cancer or repeated procedures.
- Conditions
- Colorectal Adenoma, Colorectal Polyp, Colo-rectal Cancer
- Trial name
- GPAT (NCT05877456)
- Where
- Belgium
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University Hospital, Ghent
Large Polyps in the Gastrointestinal Tract
Evaluation of Blood as a Submucosal Cushion During Endoscopic Polypectomy and Mucosal Resection
For removal of large flat lesions of the gastro-intestinal tract injection of a solution under the lesion creates a "safety" cushion and protects from damage to the gastrointestinal tract wall.
- Trial name
- NCT00583466
- Testing
- Autologous blood injection, Normal saline, HPMC
- Where
- United States
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- Johns Hopkins University
Colorectal Neoplasms
Impact of Experience on Results With the Third Eye Retroscope
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.
- Trial name
- NCT00969124
- Testing
- Third Eye Retroscope
- Where
- 9 sites in United States
- Volunteers
- 328 people, healthy volunteers welcome
- Sponsor
- Avantis Medical Systems