18F-DCFPyL Positron Emission Tomography (PET) in Intermediate or High Risk Prostate Cancer

Phase 2 Study of 18F-DCFPyL Positron Emission Tomography (PET) in Men With Intermediate or High Risk Biochemically Recurrent Prostate Cancer

This is an interventional, single group assignment, prospective nonrandomized, open label Phase 2 trial designed to evaluate 18F-DCFPyL PET imaging in men diagnosed with prostate cancer with increasing prostate-specific antigen (PSA) levels.

Study Overview

• Status: Terminated
• Conditions: Prostate Cancer
• Intervention / Treatment: Drug: 18F-DCFPyL

Detailed Description

This is an trial designed to evaluate the positive predictive value of 18F-DCFPyL PET imaging in men diagnosed with prostate cancer with increasing PSA levels. Patients will receive a single dose of 18FDCFPyL PET and undergo a PET imaging study. 18F-DCFPyL Injection is an 18F-labeled small molecule that targets the extracellular domain of PSMA. One intravenous catheter will be placed for radiopharmaceutical administration. Patients will be injected with ≤ 333 MBq (≤ 9 mCi) of 18F-DCFPyL via this catheter. The dose range for 18F-DCFPyL will be 7 - 9 mCi. The PET imaging may be repeated at a later date if the biopsy of the lesion is negative and if the lesion is present on follow-up imaging.

• Study Type: Interventional
• Enrollment (Actual): 47
• Phase: Phase 2

Contacts and Locations

Study Locations

• United States
  • Pennsylvania
    • Pittsburgh, Pennsylvania, United States, 15232
      • UPMC Hillman Cancer Center

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

• Histologically confirmed diagnosis of prostate cancer
• Biochemical recurrence was defined as a PSA of 0.2 or more ng/mL measured more than 6 weeks after prostatectomy or a PSA of 2 or more ng/mL rise above nadir following radiation therapy (ASTRO Phoenix consensus definition)
• Age ≥ 18 years of age
• Eastern Cooperative Oncology Group (ECOG) performance status ≤ 2 (Karnofsky ≥ 60%)
• Ability to understand and willingness to sign a written informed consent document
• Willing to comply with clinical trial instructions and requirements

Exclusion Criteria:

• History of another active malignancy within 3 years, other than basal cell and squamous cell carcinoma of the skin
• Presence of prostate brachytherapy implants unless approved by the PI
• Administration of another radioisotope within five physical half-lives of trial enrollment
• Radiation or chemotherapy within 2 weeks prior to trial enrollment
• Estimated glomerular filtration rate (eGFR) < 15 ml/mmol
• Serum total bilirubin > 3 times the upper limit of normal
• Aspartate transaminase (AST) or alanine aminotransferase (ALT) > 5 times the upper limit of normal
• Inadequate venous access
• Claustrophobia or any other condition that would preclude PET imaging
• Patients must not be receiving ADT except per criteria directly below. Patients who received in the past must have a serum testosterone that is recovered to at least 100 ng/dL.
• Patients who have been on ADT +/- novel hormonal agent (NHA) and developed M0 CRPC

Study Plan

How is the study designed?

Design Details

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

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: 18F-DCFPyL + PET imaging; Participants will receive a single dose of 18F-DCFPyL and undergo a PET imaging study. (The PET imaging may be repeated at a later date if the biopsy of the lesion is negative and if the lesion is present on follow-up imaging.)	Drug: 18F-DCFPyL; 18F-DCFPyL (single dose injection) - a radiolabeled prostate-specific membrane antigen (PSMA) ligand

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Positive Predictive Value (PPV) (Per-patient)	Number of patients with true positive scans (TP - positive test with disease) divided by number of TP plus number of false positive scans (FP - positive test without disease). A scan will be deemed 'positive' if at least one lesion suggestive of disease recurrence is noted. Prostate lesions and lymph nodes will be considered positive if the uptake in those lesions exceeds blood pool activity. Bone lesions will be recorded as positive if the activity is higher than normal bone marrow uptake.	Up to 12 months

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Positive Predictive Value (PPV) (Per-region)	Number of true positive scans (TP - positive test with disease) divided by number of TP plus number of false positive scans (FP - positive test without true disease), by region (prostate bed, locoregional lymph nodes, distant lymph nodes, bones, and/or visceral organs). A scan will be deemed 'positive' if at least one lesion suggestive of disease recurrence is noted. Prostate lesions and lymph nodes will be considered positive if the uptake in those lesions exceeds blood pool activity. Bone lesions will be recorded as positive if the activity is higher than normal bone marrow uptake.	Up to 12 months

Collaborators and Investigators

• Sponsor: Ashok Muthukrishnan
• Collaborators: Progenics Pharmaceuticals, Inc.
• Investigators: Principal Investigator: Ashok Muthukrishnan, MD, MS, University of Pittsburgh - Associate Professor

Study record dates

Study Major Dates

• Study Start (Actual): May 1, 2021
• Primary Completion (Actual): December 31, 2022
• Study Completion (Actual): December 31, 2022

Study Registration Dates

• First Submitted: January 22, 2021
• First Submitted That Met QC Criteria: January 22, 2021
• First Posted (Actual): January 27, 2021

Study Record Updates

• Last Update Posted (Actual): February 15, 2024
• Last Update Submitted That Met QC Criteria: January 23, 2024
• Last Verified: January 1, 2024

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Neoplasms; Urogenital Neoplasms; Neoplasms by Site; Genital Neoplasms, Male; Prostatic Diseases; Urogenital Diseases; Male Urogenital Diseases; Genital Diseases, Male; Genital Diseases; Prostatic Neoplasms
• Other Study ID Numbers: HCC 20-009

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