7 cm vs. 5 cm Pancreatic Stents for the Prevention of Post-ERCP Pancreatitis in High-risk Patients

October 28, 2019 updated by: Yanglin Pan, Air Force Military Medical University, China

7 cm vs. 5 cm Pancreatic Stents for the Prevention of Post-ERCP Pancreatitis in High-risk Patients: a Multicentre, Single-blinded, Randomised Controlled Trial

Acute pancreatitis is the most common complication of endoscopic retrograde cholangiopancreatography (ERCP). The incidence of post-ERCP pancreatitis (PEP) is estimated to be 10% to 15% in high-risk patients. Current guidelines recommend using pancreatic duct stent (PDS) for PEP prevention in high-risk patients, but it is not clear whether stent length will affect the effect of PEP prevention. The longer PDS will remain in the pancreatic duct for a longer period of time, thereby ensuring prolonged decompression with subsequent lowering of the risk for PEP. Findings from two retrospective studies showed that longer PDS was more effective in reducing the risk of post-ERCP hyperamylasemia and the frequency of PEP compared with the shorter PDS. We conducted this trial to test whether 7cm PDS was superior to 5cm PDS in PEP prevention in high-risk patients.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Unknown

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
800

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • China
    • Shanxi
      • Xi'an, Shanxi, China, 710032
        • Xijing Hospital of Digestive Diseases

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Un-intentional pancreatic duct cannulation:

    • 2 or more times;
    • 1 time with more than 10 minutes cannulation.
  2. Double-wire technique;
  3. High-risk patients:

met at least 1 of the major criteria

  • Clinical suspicion of sphincter of Oddi dysfunction;
  • Pancreatic sphincterotomy
  • Delayed precut sphincterotomy
  • ≥ 8 cannulation attempts
  • Pneumatic dilatation of an intact biliary sphincter
  • Ampullectomy

or met at least 2 or more of the minor criteria

  • Age < 50;
  • Female;
  • Normal TBIL;
  • ≥ 3 injections of contrast into the pancreatic duct with ≥ 1 injection to the tail of the pancreas;

Exclusion Criteria:

  • Therapeutic PDS;
  • Acute pancreatitis within 3 days;
  • With a history of pancreatic surgery or biliary-enteric anastomosis;
  • Pregnant or breastfeeding women;
  • unwilling or inability to provide consent.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: 5cm PDS group
All patients in this group receive 5cm 5-Fr PDS.
Device: 5cm 5-Fr PDS
High-risk patients receive 5cm 5-Fr PDS
Drug: Indomethacin
All patients without contraindications should be administrated with rectal indomethacin within 30 min before ERCP.
Experimental: 7cm PDS group
All patients in this group receive 7cm 5-Fr PDS.
Drug: Indomethacin
All patients without contraindications should be administrated with rectal indomethacin within 30 min before ERCP.
Device: 7cm 5-Fr PDS
High-risk patients receive 7cm 5-Fr PDS

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Post-ERCP Pancreatitis
Time Frame: 14 days
The diagnosis of PEP was established if there was new onset of upper abdominal pain associated with an increased serum amylase level of at least 3 times the upper limit of normal range at 24 hours after the procedure, and hospitalization for at least 2 nights.
14 days

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Moderate to severe PEP
Time Frame: 14 days
The severity classification of pancreatitis was defined according to the criteria of Cotton et al and the revised Atlanta criteria.
14 days
Other complications of ERCP
Time Frame: 14 days
Other complications include post sphincterotomy bleeding, biliary infection, perforation, and any adverse outcomes possibly related to ERCP that required hospital admission or a prolonged hospital stay for further management.
14 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Air Force Military Medical University, China

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 15, 2019

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
October 31, 2020

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
October 31, 2020

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
October 18, 2019

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 28, 2019

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
October 30, 2019

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
October 30, 2019

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 28, 2019

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
October 1, 2019

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • KY20191010-2

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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