PyL in Patients With High Risk and Biochemically Recurrent Prostate Cancer

Phase 2

Recruiting

• Conditions: Prostate Cancer
• Interventions: Drug: DCFPyL PET/CT

• Registration Number: NCT04700332
• Lead Sponsor: Hoag Memorial Hospital Presbyterian

Brief Summary

The standard of care imaging of prostate cancer metastases recommended by the National Comprehensive Cancer Network (NCCN), CT of the chest/abdomen/pelvis and bone scan, may be suboptimal. PyL is a novel PET tracer designed to detect prostate specific membrane antigen (PSMA) expressed on prostate cancer cells. PyL PET/CT may provide improved evaluation of clinically significant metastases in patients with prostate cancer.

Detailed Description

This will be a phase II clinical trial to assess the clinical value of PyL for detection of disease in pateints with:

1. High risk prostate cancer and planned prostatectomy or radiation therapy (arm 1) and

2. Biochemically recurrent prostate cancer (arm 2) but without evidence of disease of standard of care imaging (CT of the chest/abdomen/pelvis and bone scan).

In both cohorts, PyL PET/CT will be obtained and evaluated by a nuclear radiologist trained in novel PET radiotracers, including PyL. Lesions suspicious for disease of PyL that were unsuspected on standard of care imaging will be selected for biopsy for pathologic confirmation if feasible . Pathology will be used as the reference standard for confirming malignancy.

Study Timeline

• Study First Submitted: 2021-01-04
• Study First Submitted QC: 2021-01-06
• Study First Posted: 2021-01-07
• Study Start: 2021-02-01
• Status Verified: 2021-07
• Last Update Submitted: 2021-07-26
• Last Update Posted: 2021-07-27
• Primary Completion: 2022-07-15
• Study Completion: 2022-12-15

Recruitment & Eligibility

• Status: RECRUITING
• Sex: Male
• Target Recruitment: 184

Inclusion Criteria

1. Male ≥ 18 years of age.
2. Histologically confirmed adenocarcinoma of the prostate
3. Patients meet one of the follow criteria:

Cohort 1: High risk prostate cancer (PSA >10, Gleason 8-10, or clinical stage >T2c) and planned prostatectomy or radiation therapy or Cohort 2: Biochemical prostate cancer relapse (Prostate Specific Antigen (PSA) > 0.2 ng/ml in patients following prostatectomy or ≥ 2 ng/ml more than the PSA nadir in patient following radiotherapy, as defined by the ASTRO-Phoenix criteria [18] and no evidence of malignancy on standard of care imaging for metastases (CT of the chest/abdomen/pelvis and bone scan) within 3 months.

Exclusion Criteria

1. Presence of a condition or abnormality that in the opinion of the Investigator would compromise the safety of the patient or the quality of the data.
2. Patients who cannot undergo PET/CT scanning because of weight limits. PET/CT scanners may not be able to function with patients over 450 pounds.
3. Change in therapy since standard of care imaging

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
High risk prostate cancer	DCFPyL PET/CT	DCFPyL PET/CT will be compared to CT/bone scan for detection of unsuspected metastases in patients with high risk prostate cancer and planned prostatectomy or or radiation therapy
Biochemically recurrent prostate cancer	DCFPyL PET/CT	DCFPyL PET/CT will be utilized for detection of unsuspected metastases in patients with biochemically recurrent prostate cancer, but with no evidence of disease on CT/bone scan.

Primary Outcome Measures

Name	Time	Method
Detection of unsuspected metastases in high risk prostate cancer	up to 4 weeks	Determine the rate of detection of unsuspected metastases in patients with high risk prostate cancer and planned prostatectomy or radiation therapy.
Detection of unsuspected metastases in biochemically recurrent prostate cancer	up to 4 weeks	Determine the rate of detection of unsuspected metastases in patients with biochemically recurrent prostate cancer, yet no evidence of disease on CT/bone scan.

Trial Locations

Locations (1)

Hoag Memorial Hospital Presbyterian; 🇺🇸 Irvine, California, United States