Imaging of Pathologic Fibrosis Using 68Ga-FAP-2286

March 19, 2025 updated by: Thomas Hope

This is a single arm prospective pilot trial that evaluates the ability of a novel imaging agent (68Ga-FAP-2286) to identify pathologic fibrosis in the setting of hepatic, cardiac and pulmonary fibrosis.

FAP-2286 is a peptide that potently and selectively binds to Fibroblast Activation Protein (FAP). FAP is a transmembrane protein expressed on fibroblasts and has been shown to have higher expression in idiopathic pulmonary fibrosis (IPF), cirrhosis, and cardiac fibrosis.

Study Overview

Detailed Description

PRIMARY OBJECTIVES:

I. All cohorts: Safety of 68Ga-FAP-2286.

II. Cohort 1: Measured uptake of radiotracer (SUVpeak) in regions of known liver fibrosis.

III. Cohort 2: Measured uptake of radiotracer (SUVpeak) in regions of known pulmonary fibrosis.

IV. Cohort 3: Measured uptake of radiotracer (SUVpeak) in regions of myocardial fibrosis.

EXPLORATORY OBJECTIVES:

I. Correlation of 68Ga-FAP-2286 uptake with FAP expression determined by immunohistochemistry.

II. Compare 68Ga-FAP-2286 scan results to archival Computerized tomography (CT), magnetic resonance imaging (MRI), or Positron Emission Tomography (PET) images.

Patients will receive a single administration of 68Ga-FAP-2286 prior to PET imaging and will be followed for up to two hours after the injection of 68Ga-FAP-2286 for evaluation of adverse events.

Study Type

Interventional

Enrollment (Actual)

16

Phase

  • Phase 1

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

    • California
      • San Francisco, California, United States, 94122
        • University of California, San Francisco

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

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Age >= 18 years.
  2. Confirmed pathologic fibrosis in one of the following cohorts

    1. Cohort 1: Hepatic fibrosis, based on cirrhosis on imaging or hepatic fibrosis on liver biopsy.
    2. Cohort 2: Pulmonary fibrosis, based on CT findings or biopsy of lung parenchyma.
    3. Cohort 3: High likelihood of cardiac fibrosis as indicated by known cardiac sarcoidosis or amyloidosis (shown on MRI or Fluorodeoxyglucose (FDG) PET), recent myocardial infarction within the last 30 days (as shown by an elevated troponin), known cardiotoxicity (decreased ejection fraction on systemic therapy), or other known inflammatory or infiltrative disease.
  3. Ability to understand a written informed consent document, and the willingness to sign it.

Exclusion Criteria:

  1. Unlikely to comply with protocol procedures, restrictions and requirements and judged by the Investigator to be unsuitable for participation.
  2. Known pregnancy.

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: Diagnostic
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Cohort 1: Liver Fibrosis
Patients with liver fibrosis will receive a single administration of 68Ga-FAP-2286 prior to PET imaging.
A dose of 3 - 8 millicurie (mCi) will be given intravenously (IV)
Other Names:
  • 68Gallium-Fibroblast Activation Protein-2286
Imaging will begin 50-100 minutes after injection and last about 45 minutes.
Other Names:
  • PET Scan
  • PET Imaging
Experimental: Cohort 2: Pulmonary Fibrosis
Patients with pulmonary fibrosis will receive a single administration of 68Ga-FAP-2286 prior to PET imaging.
A dose of 3 - 8 millicurie (mCi) will be given intravenously (IV)
Other Names:
  • 68Gallium-Fibroblast Activation Protein-2286
Imaging will begin 50-100 minutes after injection and last about 45 minutes.
Other Names:
  • PET Scan
  • PET Imaging
Experimental: Cohort 3: Myocardial Fibrosis
Patients with myocardial fibrosis will receive a single administration of 68Ga-FAP-2286 prior to PET imaging.
A dose of 3 - 8 millicurie (mCi) will be given intravenously (IV)
Other Names:
  • 68Gallium-Fibroblast Activation Protein-2286
Imaging will begin 50-100 minutes after injection and last about 45 minutes.
Other Names:
  • PET Scan
  • PET Imaging

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Proportion of participants with treatment-related adverse events
Time Frame: Up to 31 days
Proportion of participants with Adverse Events, as graded by National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) version 5.0 will be reported.
Up to 31 days
Median peak standardized uptake value (SUVpeak) in liver region
Time Frame: Up to 1 days
The median SUVpeak in regions of known liver fibrosis will be reported with 95% confidence intervals
Up to 1 days
Median peak standardized uptake value (SUVpeak) in lung region
Time Frame: Up to 1 days
The median SUVpeak in regions of known pulmonary fibrosis will be reported with 95% confidence intervals
Up to 1 days
Median peak standardized uptake value (SUV) in myocardium region
Time Frame: Up to 1 days
The median SUVpeak in regions of known myocardial fibrosis will be reported with 95% confidence intervals
Up to 1 days

Collaborators and Investigators

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

Sponsor

Collaborators

Investigators

  • Principal Investigator: Thomas A Hope, MD, University of California, San Francisco

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)

December 9, 2021

Primary Completion (Actual)

May 28, 2024

Study Completion (Actual)

May 28, 2024

Study Registration Dates

First Submitted

December 17, 2021

First Submitted That Met QC Criteria

January 5, 2022

First Posted (Actual)

January 6, 2022

Study Record Updates

Last Update Posted (Actual)

March 25, 2025

Last Update Submitted That Met QC Criteria

March 19, 2025

Last Verified

March 1, 2025

More Information

Terms related to this study

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

Yes

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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