ClinicalTrials.gg
RecruitingNCT06706921Updated Nov 27, 2024

18F-Fluciclovine PET/CT Impact on Predicting Clinical Outcome of 177Lu-PSMA-617 Therapy in Patients With Prostate Cancer

A Phase 4 interventional study of 18F-Fluciclovine PET/CT Scan in Prostatic Neoplasms, Prostatic Neoplasms, Castration-Resistant and Metastatic Prostate Cancer, sponsored by VA Greater Los Angeles Healthcare System. Recruiting at 1 site in United States. Open to male participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-11-27.

Primary conditionProstatic Neoplasms, Castration-ResistantRegistry: Prostatic NeoplasmsReclassifiedWhy we changed it
Registry
Prostatic Neoplasms — the first condition term the registry derived for this study.
ClinicalTrials.gg
Prostatic Neoplasms, Castration-Resistant
Why
  1. The study's listed conditions name Prostatic Neoplasms, Castration-Resistant, a narrower term within Prostatic Neoplasms.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by VA Greater Los Angeles Healthcare System · Phase 4, Interventional, and Diagnostic

Phase
Phase 4
Study type
Interventional
Enrollment
15
Allocation
Not applicable
Ages
18 Years and older
Sex
Male
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Study summary

This a single-center, prospective, exploratory study. Patients with metastatic castration-resistant prostate cancer (mCRPC) scheduled to undergo Lutetium labelled prostate-specific membrane antigen radioligand therapy (LuPSMA RLT) at the West Los Angeles VA (WLA-VA) will be imaged with a baseline F-18 fluorodeoxyglucose positron emission tomography/computed tomography 18F-FDG PET/CT and a 18F-DCFPyL PET/CT (18F-DCFPyL (2-(3-{1-carboxy-5-[(6-18F-fluoro-pyridine-3-carbonyl)-amino]-pentyl}-ureido)-pentanedioic acid)positron emission tomography/computed tomography , as per standard of care in our institution. All patients further undergo eventual follow-up prostate-specific membrane antigen positron emission tomography (PSMA PET) after the 2nd, 4th, and 6th LuPSMA RLT cycle. In this prospective study, an18F-Fluciclovine positron emission tomography/computed tomography ( Axumin PET/CT )will be additionally obtained at baseline (pre-LuPSMA RLT), and after the 2nd, 4th, 6th LuPSMA RLT cycles. Axumin PET/CT will be acquired within 7 days from the PSMA PET.

This study is open to Veterans only.

Read the detailed description

The imaging analysis will consist in obtaining quantitative measurements of lesion uptake on the pre- and post-LuPSMA RLT (lesion and whole-body SUVmax, SUVmean and tumor volume) at each time point on all PET/CT scans. PET metrics at the lesion- and whole-body level will be compared among different PET radiopharmaceuticals at the same time point, and changes over time will be assessed.

All patients will be followed-up at our institution and clinical outcome will be correlated to the imaging analysis assessment.

02

Conditions studied

  • Prostatic Neoplasms
  • Prostatic Neoplasms, Castration-Resistant
  • Metastatic Prostate Cancer
  • Male Urogenital Diseases
  • Prostatic Diseases
  • Urogenital Diseases, Male
  • Genital Diseases, Male
  • Neoplasms
  • Neoplasms by Site
  • Urogenital Neoplasms
  • Genital Neoplasms, Male

Keywords

  • Prostate cancer
  • PET/CT
  • Radioligand Therapy
  • Metastatic Castration-Resistant Prostate Cancer
  • PSMA PET
03

In context

Prostatic Neoplasms, Castration-Resistant Reclassified

85 studies on the registry are indexed under Prostatic Neoplasms, Castration-Resistant; 28 are open to participants now.

This study's planned enrollment of 15 is below the median of 82 across 62 interventional studies indexed under Prostatic Neoplasms, Castration-Resistant.

Browse Prostatic Neoplasms, Castration-Resistant studies →

Lead sponsor

VA Greater Los Angeles Healthcare System is the lead sponsor of 32 studies on the registry; 5 are open to participants now.

Compared within Prostatic Neoplasms, Castration-Resistant, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Prostatic Neoplasms. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Male
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patients with mCRPC scheduled to undergo LuPSMA RLT.
  • Willingness to undergo multiple serial PET/CT scans pre- and post-LuPSMA RLT.
  • Ability of providing written .

Exclusion criteria

Exclusion Criteria:

  • Less than 18 years-old at the time of radiopharmaceutical administration.
  • Medical condition, serious concurrent illness, or other extenuating circumstance that, in the opinion of the Investigator, may significantly interfere with study procedures or compliance.
  • to LuPSMA RLT.
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Phase
Phase 4
Primary purpose
Diagnostic
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
15 participants (estimated)

Study arms

  • Experimental
    18F-Fluciclovine PET/CT

    Subjects receive 18F-Fluciclovine PET/CT scans.

    Drug: 18F-Fluciclovine PET/CT Scan

Interventions

  • Drug18F-Fluciclovine PET/CT Scan

    In this prospective study, an 18F-Fluciclovine PET/CT will be additionally obtained at baseline (pre-LuPSMA RLT), and after the 2nd, 4th, 6th LuPSMA RLT cycles.18F-Fluciclovine PET/CT will be acquired within 7 days from the PSMA PET.

06

What researchers measure

Primary outcomes

  1. 18F-Fluciclovine PET/CT Impact on Predicting Clinical Outcome of 177Lu-PSMA-617 Therapy in Patients With Prostate Cancer

    Whole-body and lesion-level SUVmean, SUVmax. SUVmax, or maximum standardized uptake value, is a measurement used in positron emission tomography (PET) scans to quantify how much glucose a tumor is metabolizing.

    Time frame: From enrollment to end of treatment at 34 weeks.

Secondary outcomes

  1. Usefulness of Tumor Heterogeneity Assessment in Patients in Patients With MCRPC Undergoing Radioligand Therapy With 177LU-PSMA-617 Using Serial 18F-DCFPYL, 18F-FDG and 18F-Fluciclovine PET/CT Predicting Clinical Outcome.

    Tumor volume on FDG, Axumin and DCFPyL PET/CT. Tumor volume is the amount of space a tumor occupies, measured in cubic centimeters (cc).

    Time frame: From enrollment to end of treatment at 34 weeks

Other outcomes

  1. Usefulness of Tumor Heterogeneity Assessment in Patients in Patients With MCRPC Undergoing Radioligand Therapy With 177LU-PSMA-617 Using Serial 18F-DCFPYL, 18F-FDG and 18F-Fluciclovine PET/CT Predicting Clinical Outcome.

    Percentage change in Whole-body and lesion-level SUVmean, SUVmax and tumor volume on FDG, Axumin and DCFPyL PET/CT pre- and post LuPSMA therapy. A "percentage change" refers to the calculated percentage difference between a initial value ( pre LuPSMA ) and a later measurement ( post LuPSMA ), essentially showing how much the tumor has grown or shrunk compared to its baseline size.

    Time frame: From enrollment to end of treatment at 34 weeks

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Study locations

1 of 1 sites recruiting
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References and documents

Individual participant data

Plan to share: Undecided — Study results are unknown at this time. The plan will be reevaluated once the results come in.

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 27, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06706921
Lead sponsor
VA Greater Los Angeles Healthcare System
Responsible party
Gholam Reza Berenji, MD (Attending Physician, VA Greater Los Angeles Healthcare System) — Principal investigator
First posted
Nov 27, 2024
Start date
Dec 15, 2024 (estimated)
Primary completion
Nov 1, 2027 (estimated)
Completion
Nov 1, 2027 (estimated)
Last update
Nov 27, 2024

Study contacts

Gholam Berenji, MD
Contact
Gholam.Berenji@va.gov
310-268-3547
Janake Wijesuriya, BS
Contact
Janake.Wijesuriya@va.gov
310-977-5209

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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