A Single-center, Prospective Cohort Study on the Differentiation of Benign and Malignant Bile Duct Stenosis Based on Bile and Peripheral Blood cfDNA Methylation Profiles

October 30, 2023 updated by: Yanglin Pan, Air Force Military Medical University, China
The goal of this observational study is to detect the methylation characteristics of cfDNA in the bile and plasma of patients with bile duct stricture. The main question it aims to answer is: Can the developed model, using peripheral blood and bile cell-free DNA sequencing, work well in screening and classifying unknown biliary stricture? Participants will collect approximately 10ml of peripheral blood and 5ml of bile from the patient.

Study Overview

Status

Status

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

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.
Observational

Enrollment (Estimated)

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.
161

Contacts and Locations

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

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • China
    • Shaanxi
      • Xi'an, Shaanxi, China, 710032
        • Recruiting
        • The First Affiliated Hospital of the Air Force Medical University
        • Contact:

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

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Sampling Method

Non-Probability Sample

Study Population

According to the "Sample Size Calculation for Comparative Diagnostic Studies with Categorical Variables (Rates)" method, it is calculated. Based on the previous research results, it is estimated that the diagnostic sensitivity of sequencing methylation profiles in bile cfDNA is 82%, the specificity is 95%, the allowable error in sensitivity is 0.1, the allowable error in specificity is 0.1, α is set to 0.05, the loss to follow-up rate is 10%, and the calculated sample size is approximately 161 cases.

Description

Inclusion Criteria:

  • 1. Patients with biliary stricture aged between 18 and 90 years old.
  • 2. Patients scheduled to undergo ERCP surgery due to obstructive jaundice or cholangitis.
  • 3. Definite benign or malignant diagnosis: with a pathological diagnosis of benign or malignant disease, or with follow-up data indicating a benign or malignant diagnosis.

Exclusion Criteria:

  • 1. Receive radiotherapy, chemotherapy, or targeted therapy before sampling.
  • 2. Malignant tumors in other parts of the body (not related to biliary stricture).
  • 3. Unable to determine the nature of the biliary stricture.
  • 4. Ineligible for ERCP due to systemic conditions or gastrointestinal obstruction.
  • 5. Pregnant or breastfeeding women.
  • 6. Unable to sign the informed consent form.

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

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
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.
malignant patients
The presence of biliary stricture due to malignant diseases, such as cholangiocarcinoma.
Diagnostic test: cfDNA methylation detection
Extract cfDNA from bile and plasma, and perform methylation detection.
benign patients
The presence of biliary stricture due to benign diseases, such as inflammation.
Diagnostic test: cfDNA methylation detection
Extract cfDNA from bile and plasma, and perform methylation detection.

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
Diagnostic accuracy
Time Frame: Immediately after test completion
This refers to the ability of the test (cell-free DNA sequencing) to correctly classify individuals into the categories of having or not having the disease. It is a measure of the test's overall effectiveness. The reference test is histological test for cancers or one-year follow-up for non-cancers.
Immediately after test completion
Sensitivity
Time Frame: Immediately after test completion
This is the ability of the test (cell-free DNA sequencing) to correctly identify those with the disease. It is the proportion of true positive results (those with the disease who test positive) to the total number of individuals who actually have the disease. The reference test is histological test for cancers or one-year follow-up for non-cancers.
Immediately after test completion
Specificity
Time Frame: Immediately after test completion
This is the ability of the test (cell-free DNA sequencing) to correctly identify those without disease. It is the proportion of true negative results (those without the disease who test negative) to the total number of individuals who actually do not have the disease. The reference test is histological test for cancers or one-year follow-up for non-cancers.
Immediately after test completion

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

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Yanglin Pan, MD, The First Affiliated Hospital of the Air Force Medical University

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 1, 2023

Primary Completion (Estimated)

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 1, 2024

Study Completion (Estimated)

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 30, 2024

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 30, 2023

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 30, 2023

First Posted (Estimated)

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.
November 3, 2023

Study Record Updates

Last Update Posted (Estimated)

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.
November 3, 2023

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 30, 2023

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, 2023

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.
  • KY20232312

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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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