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NCT07052214PHASE3RecruitingAccepts Healthy Volunteers

PSMA PET Combined With MRI for the Detection of PCa

Telix Pharmaceuticals (Innovations) Pty Limited

Start Date

8/18/2025

Completion Date

4/1/2027

Summary

This is an open label, longitudinal Phase 3 study of prostate specific membrane antigen (PSMA) positron emission tomography (PET) combined with magnetic resonance imaging (MRI) compared to standard of care (SOC) for the detection of prostate cancer (PCa).

Detailed Description

This is a single arm, multicenter, prospective, open label Phase 3 study with PSMA PET for the detection of PCa. A total of 338 participants will be enrolled from approximately 25 investigative sites in the United States and Australia. Participants with a clinical suspicion of PCa, who will undergo template biopsy, based on initial MRI (PI-RADs 3-4) within 6 months before enrollment and/or based on clinical suspicion (for PI-RADs 1-2) and who have never undergone a prostate biopsy will be eligible for the study. All participants will first undergo MRI and PSMA PET scans, followed by standard 12 core anatomical (2 core six sectors) template biopsy. If the patient does not have a biopsy, at the discretion of clinician, they'll be followed up at 6month visit. If additional lesions are detected on MRI and/or PSMA PET, MRI and/or PMSA PET targeted biopsy can be performed (according to clinician judgment). Both MRI and/or PSMA targeted biopsies will be performed with 2 cores per lesion or as per institutional standards. Clinicians may use PSMA PET to rule out the need for biopsy, in which case, the patient will not have a histopathological SOT and will need to be followed up at 6 months. All biopsy and clinical care decisions are at the discretion of the investigator/clinician (i.e. the clinician may decide to: not biopsy, solely template biopsy, additional targeted biopsies, etc.) Participants presenting with csPCa will undergo therapy/management as per institutional standard, or according to clinician judgment. Follow-up data will be collected for up to 6-months for participants (participants with no baseline imaging or histopathological evidence of PCa). Additional imaging, template and/or targeted biopsies may be performed during the follow-up period, at the discretion of the investigator. Any additional biopsy, imaging, clinical, histological, genetic, and intervention data will contribute to the determination of the CSOT. Follow-up will provide longitudinal surveillance to ensure that participants initially evaluated as negative for PCa on both imaging and histopathology are reliably negative.

Eligibility Criteria

Age Range: 18 years to No maximum

Inclusion Criteria: 1. Male, at least 18 years old. 2. Have a clinical suspicion of csPCa, and indicated for template biopsy after having received an MRI demonstrating PI-RADs 1 to 4 within 6 months of enrollment and/or have non-imaging risk factors (including but not exclusive to): a) Persistently elevated or rising PSA b) High PSA density c) Abnormal digital rectal examination (DRE) d) Strong family history of prostate cancer: i. First-degree relative (father or brother) with csPCa ii. Any relative diagnosed at \<65 years of age iii. Multiple affected relatives iv. Known hereditary cancer syndromes (e.g. BReast CAncer gene \[BRCA\]1/2, Homeobox protein Hox-B13 \[HOXB13\] mutations) e) Other high-risk biomarkers: i. 4Kscore ii. PHI (Prostate Health Index) iii. High Prostate Cancer Antigen 3 (PCA3) iv. Any other established biomarker with values in the high-risk range f) Clinical presentation: i. Symptoms suggestive of locally advanced disease (e.g. urinary obstruction, bone pain) ii. Prior negative MRI with ongoing clinical concern 3. Prostate biopsy naïve. 4. Eastern Cooperative Oncology Group performance status (ECOG PS) ≤2 per FDA guidelines. 5. Have the capacity to understand the study and be able and willing to comply with all protocol requirements. 6. Provides consent for anatomical template with/without targeted biopsy based on clinical risk, MRI and PSMA PET result. 7. Participants must comply with the radiation protection rules (including hospital admissions and isolation) that are used by the treating institution to protect their contacts and the general public, especially if a female partner of the participant is or could be pregnant. 8. Must agree to practice adequate precautions to prevent pregnancy in a female partner and to avoid potential problems associated with radiation exposure to the unborn child (Recommendations related to contraception and pregnancy testing in clinical trials Version 1.1, (CTFG \[Clinical Trial Facilitation Group\], 2020). Details of contraceptive measures to be taken by male participants and their female partners are described in Appendix 4 of the Protocol. Exclusion Criteria: Participants are excluded from the study if any of the following criteria apply: 1. Has prior diagnosis of csPCa 2. Previous diagnosis of cancer of any primary origin (excluding basal cell carcinoma or squamous cell carcinoma of the skin that has undergone potentially curative therapy). 4\. Active prostate infection, or urinary test results suggestive of an active urinary tract infection, evident on medical history, within 4 weeks of enrollment. 5\. Prior pelvic irradiation 6. Demonstrate radiographic findings of PI-RADS 5. 7. Has abnormalities in physical examination and protocol-specified clinical laboratory tests during the Screening Period that, in the judgment of the investigator, could affect safety or compliance; and/or is deemed not suitable for participating in this trial in the opinion of the investigator. 8\. Unable to understand or is unwilling to sign a written informed consent document or to follow investigational procedures in the opinion of the investigator. 9. Is unable to attain or remain in a supine position while a PET/CT scan is being performed or unable to tolerate a PET/CT scan 10. Unable or unwilling to undergo clinical prostate biopsy, has known allergies, hypersensitivity, or intolerance to the investigational drug/comparator or its excipients. 11\. Have prior use of radionuclides with an interval of less than 10 effective half-lives before the administration of 68Ga-PSMA-11. 12\. Is participating or plans to participate in any experimental drug or device trial during the study period that are considered outside of therapeutic SOC. Studies involving modifications of sequencing or timing of therapeutic regimens/interventions would be deemed eligible to enroll.

Interventions

DRUG

68Ga-PSMA-11

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Conditions

PCAProstate CancerProstatic NeoplasmPSMA PETDiagnostic ImagingElevated PSAPositron Emission TomographyProstate BiopsyCarcinoma of the Prostate

Locations

University of California Los Angeles

Los Angeles, California 90095

United States

University of California San Francisco

San Francisco, California 94158

United States

Impression Imaging

Boca Raton, Florida 33433

United States

University of Miami

Miami, Florida 33136

United States

UroPartners,LLC

Chicago, Illinois 60657

United States

Indiana University

Indianapolis, Indiana 46202

United States

Southern Urology

Lafayette, Louisiana 70508

United States

Ochsner Clinic Foundation

New Orleans, Louisiana 70121

United States

Washington University

St Louis, Missouri 63110

United States

Weill Cornell

New York, New York 10065

United States

MidLantic Urology

Philadelphia, Pennsylvania 19004

United States

Atlantic Urology Specialists

Myrtle Beach, South Carolina 29572

United States

The Conrad Pearson Clinic

Germantown, Tennessee 38138

United States

Urology Associates of Nashville

Nashville, Tennessee 37209

United States

Urology Austin

Austin, Texas 78759

United States

Urology of Virginia

Virginia Beach, Virginia 23462

United States

Australian Prostate Centre

Melbourne N., Victoria 3055

Australia

St Vincent's Hospital Sydney

Sydney,

Australia