Lipidomics, Proteomics, Micro RNAs and Volatile Organic Compounds (VOC)

February 3, 2026 updated by: AdventHealth

Lipidomics, Proteomics, Micro RNAs and Volatile Organic Compounds Biomarkers in Bile and Serum in the Diagnosis of Malignant Biliary Strictures

This is a non-randomized natural history protocol in which patients undergoing surgery or endoscopy for suspected/ diagnosed pancreaticobiliary strictures are assigned to a) control (chronic pancreatitis, no pancreatic neoplasm, primary sclerosing cholangitis), b) non-carcinoma (bile duct stones, papillary stenosis, ), c) carcinoma non-pancreatic (ampullary and distal bile duct or cholangiocarcinoma) and d) pancreatic ductal adenocarcinoma (pancreatic cancer.

Study Overview

Status

Active, not recruiting

Conditions

Intervention / Treatment

Detailed Description

Visit 1 for all participants will consist of going over the Informed Consent form and talking with the patient about the study. If the patient agrees to participate, he/she will be asked to sign the form, and a copy will be given to him/her for his/her records. This will be conducted during the day of the endoscopic procedure before the participant is under anesthesia.

Consented participants will have 20ml of blood collected via venipuncture of peripheral vein drawn by the endoscopy unit staff during their endoscopy procedure. The blood will be collected into heparinized vacutainers and immediately labeled with study specific code identifier and placed at 4⁰C until processed (within 24hr).

For clinical purposes, tissue may be removed during the endoscopic procedures. This tissue will be given to the Diagnostic Pathology (DP) personnel associated with the case for analysis. The diagnostic sample will be processed for DP use and stored in the DP active archives. No additional tissue will be taken solely for the purposes of this research study. However, if DP approves the use of the remaining clinical diagnostic, small cores or slides will be taken after the diagnostic use from the approved paraffin-embedded tissue blocks for use in comparison/confirmatory analyses to the bile and blood analyses done for this research project.

During the endoscopic procedures a 5ml aspiration of bile fluid will be collected for this study with the endoscopic instrument. The fluid will be transferred to a sterile tube, sealed, and placed at 4⁰C until processed (within 24hr). Both blood and fluids samples will be transferred to Translational Research Institute (TRI) R&D for analysis.

Follow Up (follow up will take place for all groups listed on page 7 of the protocol under "Study Design" with the exception of group B) 2 weeks post procedure- A member of the research staff will call the participant to assess for any complications Periodic medical record auditing for outcome data will be collected every three months for up to 1 year after enrollment.

One year post procedure- A member of the research staff will call the participant to assess for any complications

Study Type

Observational

Enrollment (Estimated)

500

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

  • United States
    • Florida
      • Orlando, Florida, United States, 32803
        • AdventHealth

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

Ages Eligible for Study

19 years to 95 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Probability Sample

Study Population

Patients scheduled for ERCP at the Center for Interventional Endoscopy (CIE)

Description

Inclusion Criteria:

Screening Criteria for Potential Participants in the Study

  1. Age: ≥18years old
  2. Treatment: scheduled for clinical reason to undergo an ERCP at the CIE
  3. Suspected of having biliary or pancreatic disease other than cancer (chronic pancreatitis, benign biliary strictures, post-liver transplant strictures, common bile duct stones, sphincter of Oddi dysfunction or suspected of having pancreatic or peri-ampullary malignancy (including pancreatic ductal adenocarcinoma, distal cholangiocarcinoma, ampullary carcinoma, duodenal, carcinoma
  4. Clinical or image data suggestive of pancreatic disease or the need for gastrointestinal or pancreatic inspection.
  5. Willing and mentally able to provide consent

Exclusion Criteria:

  1. Age: <18years old
  2. Pregnant women
  3. Post-bariatric surgery, hepaticojejunostomy and Bilroth II patients undergoing ERCP.
  4. Not scheduled for endoscopic procedures for clinical reasons
  5. No clinical or image data suggestive of need for clinical intervention (Endoscopy)
  6. Not willing or able to sign informed 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

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Sensitivity and specificity of biomarkers in the diagnosis of cancer
Time Frame: one year
Comparative efficacy of biomarkers, brush cytology, fluorescence in situ hybridization (FISH), carbohydrate antigen 19-9 (CA 19-9) and biliary and blood biomarkers (lipidomics, proteomics, micro RNAs and VOCs) in the diagnosis of malignancy.
one year

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Medical Record Review
Time Frame: one year
Subjects who do not have a differential diagnosis of either cancer, biliary or pancreatic disease at the time of the index Endoscopic retrograde cholangiopancreatography (ERCP) will have their medical record reviewed quarterly for new diagnoses or procedures related to pancreatic malignancy, peri-ampullary malignancy, biliary disease, or pancreatic disease.
one year

Collaborators and Investigators

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

Sponsor

AdventHealth

Investigators

  • Principal Investigator: Richard Pratley, MD, AdventHealth

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)

November 13, 2014

Primary Completion (Estimated)

December 1, 2026

Study Completion (Estimated)

December 1, 2026

Study Registration Dates

First Submitted

February 11, 2015

First Submitted That Met QC Criteria

August 20, 2015

First Posted (Estimated)

August 24, 2015

Study Record Updates

Last Update Posted (Actual)

February 5, 2026

Last Update Submitted That Met QC Criteria

February 3, 2026

Last Verified

January 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 649074

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

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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