Tumor-Derived FGF19

July 28, 2026 updated by: University of Central Florida

Translational Utility of Tumor-Derived FGF19 in a Novel Blood-Based Endocrine Suppression Approach

Identify and test thresholds, specificity and sensitivity for a potential cancer associated biomarker protein, FGF19, (and associated markers) for detection in human blood in the blood of breast and colorectal in cancer patients, and see if occurs at higher rates than healthy controls

Study Overview

Status

Completed

Detailed Description

This project seeks to develop and test a more convenient detection modality for colorectal cancer and to test feasibility for breast cancer screening through a blood based test for cancer detection. Because detection of cancer is a fundamental need to facilitate treatment and decrease patient mortality, the ultimate objective of this proposal is to test applicability and context for the blood test, especially for patients that either are not eligible or do not want to participate in currently approved screening protocols.

Colonoscopy and mammograms are gold standard cancer screening modalities that are recommended for detection of early-staged tumors, but there are many reasons why patients are noncompliant with participation in these screening modalities. Neither colorectal cancer nor breast cancer detection have reliable blood based cancer tests.

Availability of blood based cancer tests could increase patient compliance, as well as decrease the associated mortality in finding cancer at later stages. The Altomare laboratory has identified that FGF19 demonstrates unique characteristics that make it an attractive serum marker for this concept. This UCF research group has found that in studies using mice injected with human colorectal cancer cells, that FGF19 is secreted into blood by tumors. The findings support the concept that malignant FGF19 from certain tumors such as colorectal cancer can be leveraged in a diagnostic context to improve cancer detection and access to screening.

Both colorectal cancer and breast cancer patients are priority populations for the Florida Cancer Grant Programs. Importantly, FGF19 has not been tested for threshold, sensitive or specificity as a blood marker for colorectal cancer. Baseline FGF19 blood marker levels corresponding to colorectal cancer testing will be compared with those of another cancer type, breast cancer, where aberrant FGF19 levels have been implicated but also not tested. The investigators therefore also will test the applicability of serum FGF19 to detect breast cancer, which has dysregulation of FGF19 and its receptor in certain subtypes of breast tumors.

Objectives:

The primary marker that the investigators will look for is FGF19, a factor of normally restricted spatially to parts of the intestine and gall bladder, especially following a meal. The investigators will test in cancer patients whether FGF19 (or other associated markers) are higher in the blood of subset of cancer patients.

The investigators pose the question of whether FGF19 is actively secreted into blood by human tumors. In further examine its use as a blood biomarker, the investigators will address whether higher levels of FGF19 cutoffs can be detected in the blood of colorectal cancer or breast cancer patients over that of control participants. Successful completion of this goal will, for the first time, establish whether tumor production of FGF19 in human colorectal or breast tumors contributes to elevated levels in either, all or a subset of patients compared to blood levels in people without cancer.

Study Type

Observational

Enrollment (Actual)

119

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

    • Florida
      • Orlando, Florida, United States, 32816
        • Burnett School Biomedical Sciences

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

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Sampling Method

Probability Sample

Study Population

Participants currently diagnosed with breast cancer and colorectal cancer, as well as, healthy participants who are currently cancer-free.

Description

Inclusion Criteria:

  • The study will enroll adult persons with breast cancer or colorectal cancer or no cancer (healthy controls) who are able to do a fasting blood draw.

(Pregnant women may choose to be in the study. The study procedures do not pose a risk to the safety of the unborn child or the woman.)

Exclusion Criteria:

  • The study will not enroll persons who are unable or unwilling to provide informed consent.
  • Adults unable to consent, individuals who are not yet adults, and prisoners will be excluded from this study.

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
To Identify and test thresholds, specificity and sensitivity for FGF19, (and associated markers) for detection in human blood of breast and colorectal in cancer patients, and see if occurs at higher rates than healthy controls.
Time Frame: 1 year

The primary marker that the investigators will look for is FGF19, a factor of normally restricted spatially to parts of the intestine and gall bladder, especially following a meal. The investigators will test in cancer patients whether FGF19 (or other associated markers) are higher in the blood of subset of cancer patients.

The investigator pose the question of whether FGF19 is actively secreted into blood by human tumors. In further examine its use as a blood biomarker, the investigators will address whether higher levels of FGF19 cutoffs can be detected in the blood of colorectal cancer or breast cancer patients over that of control participants. Successful completion of this goal will, for the first time, establish whether tumor production of FGF19 in human colorectal or breast tumors contributes to elevated levels in either, all or a subset of patients compared to blood levels in people without cancer.

1 year

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Deborah Altomare, PhD, University of Central Florida College of Medicine

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)

June 6, 2023

Primary Completion (Actual)

June 4, 2026

Study Completion (Actual)

July 1, 2026

Study Registration Dates

First Submitted

May 3, 2023

First Submitted That Met QC Criteria

September 28, 2023

First Posted (Actual)

October 5, 2023

Study Record Updates

Last Update Posted (Actual)

July 30, 2026

Last Update Submitted That Met QC Criteria

July 28, 2026

Last Verified

July 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

IPD Plan Description

Undecided

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

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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