PSMA PET for the Staging and Management of Hepatocellular Carcinoma

July 17, 2025 updated by: VA Office of Research and Development

Addition of F18-Piflufolastat PET/CT to Cross-Sectional Imaging for the Staging and Management of Hepatocellular Carcinoma

This prospective, single-center study evaluates the clinical utility of F18-Piflufolastat (PSMA) PET/CT when added to conventional cross-sectional imaging for patients with suspected or confirmed hepatocellular carcinoma (HCC). The study aims to determine whether PSMA PET/CT improves diagnostic accuracy for indeterminate liver lesions (LI-RADS 3 and 4), enhances staging precision in treatment-naïve patients, and provides more accurate assessment of treatment response in patients undergoing locoregional therapy (LRT). The goal is to assess how PSMA PET/CT may impact clinical decision-making, staging, and management of HCC across multiple stages of disease.

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.

Detailed Description

Hepatocellular carcinoma (HCC) is the most common primary liver cancer and a leading cause of cancer-related mortality worldwide. Accurate diagnosis, staging, and treatment response assessment are critical for optimal management of patients with HCC. However, conventional imaging modalities, such as contrast-enhanced CT and MRI, have limitations in characterizing indeterminate liver lesions and in detecting intrahepatic or extrahepatic disease, particularly in the context of post-treatment changes.

This prospective, single-center study investigates the added value of F18-Piflufolastat (PSMA) PET/CT in the evaluation and management of patients with suspected or confirmed HCC. PSMA (Prostate-Specific Membrane Antigen) is a cell surface protein that, while originally characterized in prostate cancer, has demonstrated overexpression in the neovasculature of a variety of solid tumors, including HCC. F18-Piflufolastat is a radiotracer that targets PSMA, allowing for enhanced molecular imaging.

Participants will undergo PSMA PET/CT imaging in addition to standard-of-care imaging (CT and/or MRI). The study is designed to address three primary clinical questions:

  1. Diagnosis: Does the addition of PSMA PET/CT improve characterization of indeterminate liver lesions (e.g., LI-RADS 3 or 4)?
  2. Staging: Can PSMA PET/CT improve the accuracy of disease staging in treatment-naïve patients by detecting intrahepatic or extrahepatic disease not visualized on conventional imaging?
  3. Treatment Response: In patients who have undergone locoregional therapy (LRT), does PSMA PET/CT provide more precise assessment of viable tumor tissue compared to standard imaging? Data collected will include imaging results, histopathological confirmation when available, changes in clinical management prompted by PSMA PET/CT findings, and correlation with clinical outcomes. By evaluating the clinical utility of PSMA PET/CT across multiple phases of the disease course, this study aims to inform future diagnostic algorithms and treatment planning strategies in patients with HCC.

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.
90

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.
  • Name: Binu V John, MD MPH
  • Phone Number: 17647 (305) 575-7000
  • Email: binu.john@va.gov

Study Contact Backup

Study Locations

  • United States
    • Florida
      • Miami, Florida, United States, 33125
        • Recruiting
        • Miami VA Healthcare System, Miami, FL
        • Contact:
        • Contact:
        • Principal Investigator:
          • Binu V John, MD MPH

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

No

Sampling Method

Probability Sample

Study Population

This study will recruit 90 Veterans from the VHA with HCC, and no non-Veteran participants. This will include 30 participants with LR-3 and 4 lesions detected during surveillance (Aim 1), 30 treatment naïve participants towards Aim 2, and 30 treatment experienced participants for Aim 3. In addition, 10 participants out of the 60 who are recruited for aims 2 and 3 are projected to have indeterminate nodules, increasing the number of participants with indeterminate nodules to 40. West Palm Beach and Orlando VA patients who are evaluated at the Miami VA, will be approached for study recruitment. These Veterans will continue to be co-managed by the Miami VA and the local VA teams after undergoing treatment in Miami.

Description

Inclusion Criteria:

  • Adult patients age >18 years from the VA medical system
  • Treatment-naïve patients with HCC with BCLC B or C disease

Exclusion Criteria:

  • Patients with renal dysfunction or contrast allergy that precludes contrast enhanced cross sectional imaging
  • Patients with presence of active primary malignancy other than HCC and non-melanoma skin cancer in the past 3 years

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.
Indeterminate Lesions Cohort (Diagnosis Focus)
Participants in this cohort have liver lesions categorized as LI-RADS 3 or 4 based on standard imaging. The purpose of the PSMA PET/CT is to assist in the further characterization of these indeterminate nodules and support diagnosis of HCC or benign pathology.
Treatment-Naïve Cohort (Staging Focus)
This cohort includes participants with newly diagnosed HCC who have not yet received any locoregional or systemic therapy. PSMA PET/CT is performed to evaluate the extent of disease and detect potential intrahepatic or extrahepatic spread, contributing to improved staging accuracy.
Post-Treatment Cohort (Treatment Response Focus)
Participants in this cohort have previously undergone locoregional therapy (e.g., TACE, RFA, or ablation). PSMA PET/CT is used to assess residual or recurrent disease and help evaluate treatment response compared to standard imaging.

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
1: Change in Diagnostic Classification of Indeterminate Lesions (LI-RADS 3/4) After PSMA PET/CT; 2: Change in Clinical Staging in Treatment-Naïve Patients; 3: Change in Assessment of Treatment Response Following Locoregional Therapy
Time Frame: 1: Within 30 days of PET/CT imaging; 2: Within 30 days of PET/CT imaging; 3: Within 30 days of post-treatment imaging
  1. Proportion of patients with LI-RADS 3/4 lesions whose diagnostic classification is revised (i.e., confirmed as HCC or benign) based on F18-Piflufolastat PET/CT findings, as compared to standard imaging alone. Final diagnosis will be based on histopathology (if available) or multidisciplinary tumor board consensus;
  2. Number and percentage of treatment-naïve patients whose disease stage is upstaged or down-staged after PSMA PET/CT imaging, relative to standard imaging, according to modified BCLC or AJCC staging guidelines;
  3. Difference in tumor viability classification based on PSMA PET/CT vs. standard imaging using mRECIST or LI-RADS treatment response criteria. Correlation with histopathologic or clinical follow-up will be evaluated where available.
1: Within 30 days of PET/CT imaging; 2: Within 30 days of PET/CT imaging; 3: Within 30 days of post-treatment imaging

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
1: Change in Clinical Management Based on PSMA PET/CT Findings; 2: Change in Clinical Staging in Treatment-Naïve Patients; 3: Change in Assessment of Treatment Response Following Locoregional Therapy
Time Frame: 1: Within 30 days of PET/CT imaging; 2: Within 30 days of PET/CT imaging; 3: Within 30 days of post-treatment imaging
  1. Proportion of patients with LI-RADS 3/4 lesions whose diagnostic classification is revised (i.e., confirmed as HCC or benign) based on F18-Piflufolastat PET/CT findings, as compared to standard imaging alone. Final diagnosis will be based on histopathology (if available) or multidisciplinary tumor board consensus;
  2. Number and percentage of treatment-naïve patients whose disease stage is upstaged or downstaged after PSMA PET/CT imaging, relative to standard imaging, according to modified BCLC or AJCC staging guidelines;
  3. Difference in tumor viability classification based on PSMA PET/CT vs. standard imaging using mRECIST or LI-RADS treatment response criteria. Correlation with histopathologic or clinical follow-up will be evaluated where available.
1: Within 30 days of PET/CT imaging; 2: Within 30 days of PET/CT imaging; 3: Within 30 days of post-treatment imaging

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
1: Inter-reader Agreement on PSMA PET/CT Interpretation; 2: Correlation Between PSMA Uptake and Histopathologic Features
Time Frame: 1: Within 30 days of imaging; 2: Up to 90 days post-imaging (when surgical specimens are available)
  1. Agreement between independent nuclear medicine readers on lesion characterization and treatment response using standardized reporting criteria (e.g., kappa statistics);
  2. Quantitative PET uptake metrics (SUVmax, SUVmean) will be correlated with histologic markers of tumor grade, vascular invasion, and PSMA expression, when pathology samples are available.
1: Within 30 days of imaging; 2: Up to 90 days post-imaging (when surgical specimens are available)

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.
VA Office of Research and Development

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Miami VA Healthcare System

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: Binu V John, MD MPH, Miami VA Healthcare System, Miami, FL

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.
September 19, 2024

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.
December 30, 2027

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.
September 30, 2028

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).
June 5, 2025

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.
June 5, 2025

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.
June 13, 2025

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.
July 23, 2025

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.
July 17, 2025

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.
July 1, 2025

More Information

Terms related to this study

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.
  • ONCC-006-23S
  • 1761959 (Other Identifier: VA Central Institutional Review Board Panel)
  • 1I01CX002654-01A1 (U.S. NIH Grant/Contract)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

The United States Department of Veterans Affairs (VA) places legal restrictions on access to Veterans' healthcare data, including identifying and sensitive patient information. The analytic datasets used in this study were not permitted to leave the VA firewall without data-use agreement. This limitation is consistent with those of other studies based on VA data. However, VA data are freely available to researchers behind the VA firewall with an approved VA study protocol. For more information, please visit https://www.virec.research.va.gov or contact the VA Information Resource Center (VIReC) at Virec@Va.gov.

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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