aScope Single Use ERCP Study- ASSURE Study

NCT ID: NCT05225909

Last Updated: 2026-01-22

Basic Information

• Recruitment Status: COMPLETED
• Total Enrollment: 59 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2022-07-05
• Study Completion Date: 2025-03-31

Brief Summary

Patients undergo ERCP procedure (Endoscopic procedure with the help of x-rays) for a variety of reasons such as common bile duct (CBD)stones, bile duct obstruction secondary to bile duct narrowing (Strictures) and for bile leak. The incidence of infection post-ERCP is around one in 200. There are some group of patients where this risk is significantly increased. In this high risk group, the risk increases from 1 in 75 to in some diseases 1 in 15 (Described in PIS). There are some reports that some of the infection may be contributed by contamination of bacteria in the scope. This happens even after diligently sterilizing the scope. A multi-centre study reported that the risk of contamination is as high as 39% but what we do not know is how many resulted in bacterial infection. The investigators do not know what percentage of infection is secondary to the above. The new single use duodenoscope (aScope, Ambu Ltd) has been introduced in to the market to minimise the risk of post ERCP infection. It is CE marked but the evidence for performance of the aScope is limited. The investigators want to assess the performance of the scope simultaneously in multiple different hospitals. In addition, the investigators also want to assess the cost consequence to the NHS for using the above scope. Hence, the investigators want to assess the performance of the scope in the high risk groups for infection.

Detailed Description

ERCP is a therapeutic endoscopic procedure done to establish either bile duct or pancreatic duct drainage or both. The indications for ERCP are bile duct stones, bile duct strictures, sphincter of Oddi manometry with sphincterotomy, bile leak, pancreatic duct stones and pancreatic duct stricture. The intended benefits of the procedure are either to relieve bile duct/ pancreatic duct obstruction or facilitate bile duct/ pancreatic duct drainage. It is a minimally invasive procedure and is associated with reduced morbidity compared to surgery.

Gall stones are made of cholesterol, pigment and mixture of cholesterol and pigment. The incidence of stones with in the bile-duct varies from 4.6% to 19%.The stones are predominantly formed in the gall bladder and are displaced from the gall bladder in to the bile duct via the cystic duct. ERCP is an effective and minimally invasive treatment for bile duct stones. Treatment of extrahepatic biliary strictures; irrespective of their aetiology, is to place a stent across the stricture through ERCP and facilitate biliary drainage.

There is emerging data that the incidence of carbapenem resistant enterobacteriae, Multidrug-resistant Klebsiella pneumoniae, and New Delhi metallo-β-lactamase-producing carbapenem-resistant Escherichia coli (CRE) following exposure to contaminated duodenoscopes (ERCP endoscopes). The main reason for the outbreaks is due to inadequate reprocessing (Cleaning of endoscope post procedure) leading to contamination of endoscopes. To minimize the risk of contamination and outbreak of above infections, single use disposable duodenoscopes have been brought in to the market. The aim of the study is to assess the performance of the single use duodenoscope and the cost consequences associated with the above.

Conditions

ERCP; Cholangitis; Infection

Study Design

• Observational Model Type: COHORT
• Study Time Perspective: PROSPECTIVE

Study Groups

Patients who Undergo ERCP procedure with aScope

This will be patients who undergo ERCP procedure using aScope.

Endoscopic retrograde Cholangio-pancreatography (ERCP) with aScope (Single use duodenoscope

Intervention Type: DEVICE

ERCP Procedure will be done using aScope. We will assess the performance of the aScope.

Interventions

Endoscopic retrograde Cholangio-pancreatography (ERCP) with aScope (Single use duodenoscope

ERCP Procedure will be done using aScope. We will assess the performance of the aScope.

Intervention Type: DEVICE

Eligibility Criteria

Inclusion Criteria

Patients who are at high risk of post ERCP infection such as

• Jaundice (Bilirubin >21)
• Primary sclerosing cholangitis
• Post liver transplant anastomotic stricture
• Inpatients
• Combined procedures (Ex: ERCP+ spy glass cholangioscopy)
• Previous inadequate biliary drainage.
• Biliary stricture
• Participant is willing and able to give informed consent for participation in the study.
• Male or Female, aged 18 years or above.
• Grade 1-3 ERCP on complexity grading (ASGE grading)
• Able (in the Investigators opinion) and willing to comply with all study requirements.
• Willing to allow his or her General Practitioner and consultant, if appropriate, to be notified of participation in the study.

Exclusion Criteria

Patients with CBD stones and no jaundice

• Sphincter of Oddi manometry.
• Female participants who is pregnant, lactating or planning pregnancy during the course of the study.
• Patients who are unable to consent for the study.
• ERCP for Pancreatic pathology.
• Grade 4 complex ERCP (ASGE grading)
• Participant who is terminally ill /ECOG 4
• Any other significant disease or disorder which, in the opinion of the Investigator, may either put the participants at risk because of participation in the study, or may influence the result of the study, or the participant's ability to participate in the study.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 90 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Nottingham University Hospitals NHS Trust

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Suresh V Venkatachalapathy, MRCP

Role: STUDY_CHAIR

Nottingham University Hospitals NHS Trust

Locations

Nottingham University Hospitals NHS Trust

Nottingham, Nottingham, United Kingdom

Countries

United Kingdom

Other Identifiers

21GA088

Identifier Type: -

Identifier Source: org_study_id