Impact of Fluciclovine (18F) PET (Positron Emission Tomography) on the Management of Prostate Cancer Following Negative or Equivocal PSMA (Prostate-Specific Membrane Antigen) PET Imaging at the Time of Biochemical Recurrence

September 2, 2026 updated by: Blue Earth Diagnostics

The Impact of Fluciclovine (18F) PET on the Management of Participants With Prostate Cancer Following Negative or Equivocal PSMA PET Imaging at the Time of Biochemical Recurrence

The impact of fluciclovine (18F) PET on the management of participants with prostate cancer following negative or equivocal PSMA PET Imaging at the time of biochemical recurrence

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.

Detailed Description

This is a prospective, multi-institutional, Phase 4 study to assess change in management (CIM) following fluciclovine (18F) imaging in participants with prostate cancer who have a negative or equivocal prostate-specific membrane antigen (PSMA) positron emission tomography (PET) scan at the time of any biochemical recurrence (BCR)

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.
Interventional

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.
142

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 4

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

  • United States
    • California
      • San Diego, California, United States, 92103
        • Not yet recruiting
        • University of California San Diego Health
        • Contact:
          • Sherief H Gamie, MD
    • Georgia
      • Atlanta, Georgia, United States, 30322
        • Not yet recruiting
        • Emory University
        • Contact:
          • Ismaheel Lawal, MD
    • Massachusetts
      • Boston, Massachusetts, United States, 02114
        • Not yet recruiting
        • Massachusetts General Hospital
        • Contact:
          • Pedram Heidari, MD
    • Missouri
      • St Louis, Missouri, United States, 63110
        • Not yet recruiting
        • Washington University
        • Contact:
          • Ashwin Parihar, MD
    • Oregon
      • Portland, Oregon, United States, 97239
        • Recruiting
        • Oregon Health & Science University
        • Contact:
          • Nadine Mallak, MD
    • Texas
      • Austin, Texas, United States, 78759
        • Not yet recruiting
        • Urology Austin
        • Contact:
          • Brian Mazzarella, MD

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

Description

Inclusion Criteria:

  1. Participants must be males aged ≥18 years at Screening.
  2. Participants with suspected BCR of prostate cancer (see Inclusion Criterion #3 below) following prior curative intent treatment and a negative or equivocal PSMA PET scan with any FDA-approved PSMA PET tracer (must be within 45 days prior to Visit 2 [fluciclovine (18F) PET/CT scan]), regardless of findings on conventional imaging.
  3. Participants suspicious for a biochemically recurrent prostate cancer with a detectable or rising PSA after definitive therapy on the basis of: Post-radical prostatectomy (with or without adjuvant or salvage radiation therapy): PSA that is ≥0.2 ng/mL (completed >6 weeks after surgery) or Post-radiation therapy (with or without ADT): Increase in PSA level that is ≥2.0 ng/mL above the nadir PSA level and rising PSA is confirmed on consecutive PSA determinations.
  4. Men who are sexually active with women of childbearing potential (WOCBP), must agree to use a highly effective method(s) of contraception for 24 hours post-fluciclovine (18F) injection.
  5. Participants must provide written informed consent before any study-specific procedures or interventions are performed.
  6. Ability of the participants to comply with planned study procedures

Exclusion Criteria:

  1. Participants with known metastatic castrate resistant prostate cancer.
  2. Participants with any medical condition (including intercurrent illness and uncontrolled serious infection) or circumstance (including receiving an IP) that the investigator believes may compromise the data collected or lead to a failure to comply with the study requirements.
  3. Participants who are planned to have an x-ray contrast agent or any other PET radiotracer within five physical half-lives of the first PET radionuclide prior to the study fluciclovine (18F) PET/CT scan.
  4. Participants participating in an interventional clinical trial within 30 days and having received an IP five physical half-lives prior to the study fluciclovine (18F) PET/CT scan.
  5. Participants with known hypersensitivity to the active substance or to any of the excipients of fluciclovine (18F).
  6. Participants who have received salvage therapy for the current episode of BCR.
  7. Participants who initiate cancer treatment (systemic or radiation therapy) or who have started any supplements or herbal medications intended to treat cancer between the PSMA PET and fluciclovine (18F) PET/CT scans.

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: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
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.
Experimental: Patients Single intravenous administration of fluciclovine (18F) for PET Scan
Drug: fluciclovine (18F)
fluciclovine (18F) injection, 370 MBq (10 mCi) ± 20%, delivered as an intravenous bolus.
Other Names:
  • Axumin

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
Time Frame
Percentage of participants with any recorded Change In Management following a fluciclovine (18F) PET/CT scan.
Time Frame: fluciclovine (18F) on Day 1, At least 24 hours after the piflufolastat (18F) scan, but within 30 calendar days
fluciclovine (18F) on Day 1, At least 24 hours after the piflufolastat (18F) scan, but within 30 calendar days

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
Time Frame
For those participants with a CIM, summary of the CIM groups following a fluciclovine (18F) PET/CT scan.
Time Frame: fluciclovine (18F) on Day 1, At least 24 hours after the piflufolastat (18F) scan, but within 30 calendar days
fluciclovine (18F) on Day 1, At least 24 hours after the piflufolastat (18F) scan, but within 30 calendar days
Participant-level and region-level (prostate bed, pelvic lymph nodes [PLNs], other) detection rates.
Time Frame: fluciclovine (18F) on Day 1, At least 24 hours after the piflufolastat (18F) scan, but within 30 calendar days
fluciclovine (18F) on Day 1, At least 24 hours after the piflufolastat (18F) scan, but within 30 calendar days
Participant-level and region-level (prostate bed, PLNs, other) detection rates stratified by PSA levels.
Time Frame: fluciclovine (18F) on Day 1, At least 24 hours after the piflufolastat (18F) scan, but within 30 calendar days
fluciclovine (18F) on Day 1, At least 24 hours after the piflufolastat (18F) scan, but within 30 calendar days
Percentage of participants with any recorded CIM following a positive/negative fluciclovine (18F) PET/CT
Time Frame: fluciclovine (18F) on Day 1, At least 24 hours after the piflufolastat (18F) scan, but within 30 calendar days
fluciclovine (18F) on Day 1, At least 24 hours after the piflufolastat (18F) scan, but within 30 calendar days
Percentage of participants with a recorded minor or major CIM following a positive/negative fluciclovine (18F) PET/CT
Time Frame: fluciclovine (18F) on Day 1, At least 24 hours after the piflufolastat (18F) scan, but within 30 calendar days
fluciclovine (18F) on Day 1, At least 24 hours after the piflufolastat (18F) scan, but within 30 calendar days
For those participants with a CIM, summary of CIM groups following a positive/negative fluciclovine (18F) PET/CT
Time Frame: fluciclovine (18F) on Day 1, At least 24 hours after the piflufolastat (18F) scan, but within 30 calendar days
fluciclovine (18F) on Day 1, At least 24 hours after the piflufolastat (18F) scan, but within 30 calendar days
For those participants with a change in management (CIM), percentage of participants with a recorded minor or major CIM following a fluciclovine (18F) PET/CT scan.
Time Frame: fluciclovine (18F) on Day 1, At least 24 hours after the piflufolastat (18F) scan, but within 30 calendar days
fluciclovine (18F) on Day 1, At least 24 hours after the piflufolastat (18F) scan, but within 30 calendar days

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.
Blue Earth Diagnostics

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: Nadine Mallak, MD, Oregon Health and Science University

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.
August 31, 2026

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 31, 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.
December 31, 2032

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).
April 22, 2026

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.
April 29, 2026

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.
May 6, 2026

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.
September 8, 2026

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.
September 2, 2026

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.
September 1, 2026

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.
  • BED-FLC-401

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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