68Ga PSMA-11 PET/CT in Recurrent Prostate Cancer
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ClinicalTrials.gov Identifier: NCT04483414 |
Recruitment Status :
Withdrawn
(Study was closed since no participants were enrolled.)
First Posted : July 23, 2020
Last Update Posted : May 19, 2023
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Condition or disease | Intervention/treatment | Phase |
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Prostate Cancer Prostate Cancer Metastatic Prostate Cancer Metastatic to Bone | Drug: 68Ga PSMA-11 injection Procedure: Positron Emission Tomography/Computed Tomography | Phase 2 |
In developed countries, prostate cancer is the most common malignancy in men and the third leading cause of death in men. Following primary therapy for prostate cancer, a substantial number of patients will recur either locally in the pelvis or in extra pelvic locations. Approximately 20-30% of patients' status post RP will recur and up to 60% patients treated with EBRT will recur, as detected by rising serum levels of prostate specific antigen (PSA) after original therapy. This phenomenon is referred to as biochemical recurrence (BCR), as the elevated PSA usually occurs in advance of obvious clinical or radiologic evidence.
This study is designed to evaluate the performance of 68Ga PSMA-11 PET/CT in detecting the location (localized versus extra pelvic) of BCR and advanced metastatic prostate cancer compared to conventional imaging. In addition, we will evaluate its performance in assessing interim and post salvage therapy response compared to conventional imaging, including pelvic magnetic resonance imaging (MRI), computed tomography (CT), and bone scintigraphy.
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 0 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Intervention Model Description: | Unblinded, single arm imaging study |
Masking: | None (Open Label) |
Primary Purpose: | Diagnostic |
Official Title: | The Role of 68Gallium PSMA-11 in Biochemical Recurrence in Prostate Cancer and in Known Metastatic Prostate Cancer and in the Evaluation of Treatment Response After Salvage Therapy |
Actual Study Start Date : | March 19, 2021 |
Actual Primary Completion Date : | April 5, 2023 |
Actual Study Completion Date : | April 5, 2023 |

Arm | Intervention/treatment |
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Experimental: Patients with suspected BCR or metastatic prostate cancer
Patients with suspected BCR or metastatic prostate cancer
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Drug: 68Ga PSMA-11 injection
Injection of 68Ga PSMA-11 Procedure: Positron Emission Tomography/Computed Tomography PET/CT scan after 68Ga PSMA-11 injection
Other Name: PET/CT |
- Location of recurrence [ Time Frame: Up to 3 years ]Localized vs extra-pelvic recurrence will be determined for each patient based on 68Ga PSMA-11 PET/CT and standard-of-care radiological imaging.
- Residual prostate cancer [ Time Frame: Up to 3 years ]For imaging during or after salvage therapy, existence of residual prostate cancer will be determined for each patient on 68Ga PSMA-11 PET/CT and standard-of-care radiological imaging.

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | Male |
Gender Based Eligibility: | Yes |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Patients with suspected BCR of prostate cancer following initial treatment with either prostatectomy or definitive EBRT of the prostate or patients with known metastatic prostate cancer who have failed systemic therapy.
- Patients being considered for salvage therapy.
- Patients must have an Eastern Cooperative Oncology Group (ECOG) performance status of 0-3.
- Patients must be medically stable as judged by the patient's physician.
- Patients must be able to lie still for 20-40 minutes for the PET/CT scans.
- Ability to understand and the willingness to sign a written informed consent.
- Patients with BCR and no known lesions should not be on antiandrogen therapy at the time of scans. Patients with known metastases who are currently being treated with anti-androgen therapy may remain on this medication.
Exclusion Criteria:
- Patients who have or have had a biopsy proven concurrent other malignancy, excluding skin cancers.
- Patients may not weigh more than the maximum weight limit for the PET /CT scanner table (> 200 kg or 440 pounds).
- History of allergic reactions attributed to compounds of similar chemical or biologic composition to 68Ga PSMA-11. Furosemide will not be administered to patients with known allergy.
- Patients must not be claustrophobic.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04483414
United States, Texas | |
UT Southwestern Medical Center | |
Dallas, Texas, United States, 75390 |
Principal Investigator: | Orhan K Oz, MD, PhD | UT Southwestern Medical Center |
Responsible Party: | Dana Mathews, Professor, University of Texas Southwestern Medical Center |
ClinicalTrials.gov Identifier: | NCT04483414 |
Other Study ID Numbers: |
STU-2020-0488 |
First Posted: | July 23, 2020 Key Record Dates |
Last Update Posted: | May 19, 2023 |
Last Verified: | May 2023 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
PET/CT prostate cancer Gallium-68 PSMA-11 |
Prostatic Neoplasms Neoplasms Genital Neoplasms, Male Urogenital Neoplasms Neoplasms by Site Genital Diseases, Male Genital Diseases |
Urogenital Diseases Prostatic Diseases Male Urogenital Diseases Gallium 68 PSMA-11 Radiopharmaceuticals Molecular Mechanisms of Pharmacological Action |