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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04111601
Other study ID # PHT/2019/30
Secondary ID
Status Completed
Phase
First received
Last updated
Start date October 16, 2019
Est. completion date October 15, 2022

Study information

Verified date November 2022
Source Portsmouth Hospitals NHS Trust
Contact n/a
Is FDA regulated No
Health authority
Study type Observational [Patient Registry]

Clinical Trial Summary

Bowel cancer is the third most common cancer in the UK. It develops through smaller growths in the bowel called polyps. Early recognition and removal of these polyps result in prevention of developing bowel cancer in an individual. However, not all polyps will lead to cancer, certain polyps are just growths of normal tissue and can be left in the bowel. We therefore need to know which polyps to remove and which ones to leave. One way of doing this is to have a better look at these polyps. This can be done by new technologies. One of them is called Blue Light Imaging (BLI). This is a new light source at the end of the camera which is activated by the push of a button. It will help us in looking at these polyps more closely. This helps us decide which polyps to remove and which ones are safe to leave as there is always a small risk in removing a polyp. It would also give us a better idea as to when to repeat the camera test if necessary (endoscopic surveillance). By reducing the number of polyps resected and sent to the pathology labs for diagnosis, the work load on the pathology department is also reduced and in the process, providing cost savings to the Trust, The study aims to see if using Blue Light during endoscopy helps us to identify and characterize small polyps better


Description:

Advanced endoscopic imaging can facilitate the characterisation of neoplastic and non-neoplastic polyps. Accurate identification of small non-neoplastic polyps (e.g. rectosigmoid hyperplastic polyps) that do not harbour malignant potential can lead to future implementation of a 'resect and discard' or 'diagnose and leave' strategy. However, there is insufficient evidence that endoscopists are able to attain high enough levels of optical diagnostic performance in-vivo in order to implement this strategy safely. Blue Light Imaging (BLI) is a new enhanced imaging technology that enhances mucosal surface and vessel patterns. A specific BLI classification was recently developed to enable better characterisation of colorectal polyps (BLI Adenoma Serrated International Classification - BASIC). The use of this technology with the appropriate classification to enhance its performance has not yet been tested in clinical settings of polyp surveillance and screening colonoscopy amongst general endoscopists. BLAST is a multicentre prospective observational study which will compare BLI optical diagnosis with histological assessment (as a reference standard) for patients with small polyps (<10mm) identified at colonoscopy.


Recruitment information / eligibility

Status Completed
Enrollment 217
Est. completion date October 15, 2022
Est. primary completion date October 15, 2022
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - > 18 years of age Able to provide informed consent Exclusion Criteria: - History of polyposis syndrome History of Inflammatory bowel disease History of poor bowel prep

Study Design


Related Conditions & MeSH terms


Intervention

Device:
Blue light imaging
Advanced virtual chromoendoscopy

Locations

Country Name City State
United Kingdom Portsmouth Hospital NHS Trust Portsmouth Hampshire

Sponsors (9)

Lead Sponsor Collaborator
Portsmouth Hospitals NHS Trust Catharina Ziekenhuis Eindhoven, Göteborg University, Humanitas Hospital, Italy, King's College Hospital NHS Trust, Luzerner Kantonsspital, MITERA Hospitals, Athens , Greece, Nuovo Regina Margherita Hospital, University Medical Centre Ljubljana

Country where clinical trial is conducted

United Kingdom, 

Outcome

Type Measure Description Time frame Safety issue
Primary Percentage of adenomas correctly identified with BLI Accuracy of BLI in optical diagnosis of small colorectal polyps 12 months
Secondary Amount of money saved in GBP ( Cost savings) Economic implications of replacing histological diagnosis with optical diagnosis 12 months
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