CClinicalTrials.gg
CompletedNCT03768349Updated Apr 6, 2025

PSMA and C-11 Choline PET in Patients With Biochemical Recurrence of Prostate Cancer

An Early Phase 1 interventional study of Ga-68 PSMA11 and F-18 PSMA 1007 in Prostate Cancer, sponsored by Mayo Clinic. Completed at 1 site in United States. Open to male participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-04-06.

Sponsored by Mayo Clinic · Early Phase 1, Interventional, and Diagnostic

From the registry’s dates

  • Primary completion was Jul 2021, 5 years 2 months ago, and no results have been posted to the registry.
Phase
Early Phase 1
Study type
Interventional
Enrollment
250
Allocation
Non-randomized
Ages
18 Years and older
Sex
Male
01

Study summary

Imaging and staging of prostate cancer is critical for surgical and treatment planning. In this protocol we will image patients with suspected metastatic prostate cancer using 11C-Choline PET and Gallium-68 labeled HBED-CC PSMA (more commonly called 68Ga-PSMA-11) or F-18 labeled PSMA 1007 in order to demonstrate their utility in detecting prostate cancer.

02

Conditions studied

  • Prostate Cancer

Keywords

  • Prostate Cancer
  • PET/CT
  • PSMA
  • C-11 Choline
03

In context

Prostatic Neoplasms

6,370 studies on the registry are indexed under Prostatic Neoplasms; 1,400 are open to participants now.

This study's enrollment of 250 is above the median of 58 across 4,822 interventional studies indexed under Prostatic Neoplasms.

Browse Prostatic Neoplasms studies →

Lead sponsor

Mayo Clinic is the lead sponsor of 3,218 studies on the registry; 669 are open to participants now.

Of its 445 completed or terminated interventional studies of FDA-regulated products, 313 (70%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

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

Inclusion criteria

  1. Histopathological proven prostate adenocarcinoma.
  2. Rising PSA after definitive therapy with prostatectomy or radiation therapy (external beam or brachytherapy).

    a. Post radical prostatectomy (RP) - with or without radiation. i. PSA greater than or equal to 0.2 ng/mL measured more than 12 weeks after RP. ii. > 3 months post-surgery b. Post-radiation therapy ASTRO-Phoenix consensus definition c. May or may not be castrate resistant (list prior therapies)

  3. Karnofsky performance status of 50 (or ECOG/WHO equivalent).
  4. CT or as part of the PET study or performed within one month of PSMA PET.
  5. Age > 18.
  6. Ability to understand a written informed consent document, and the willingness to sign it.

Exclusion criteria

Exclusion Criteria:

  1. Undergoing investigational therapy for prostate cancer.
  2. Other ongoing treatments for prostate cancer including radiation therapy, chemotherapy or androgen deprivation. Androgen deprivation within the last 4 months excluding finasteride, dutasteride or other 5 alpha reductase inhibitors (excluding castrate resistant subjects).
  3. Unable to lie flat, still or tolerate a PET scan.
  4. Prior history of any other malignancy within the last 2 years, other than skin basal cell or cutaneous superficial squamous cell carcinoma that has not metastasized and superficial bladder cancer.
  5. Contraindication to furosemide administration including prior allergy or adverse reaction to furosemide or sulfa drugs. (Note: This exclusion criteria can be removed if Furosemide is omitted as part of the PET imaging protocol if a second-generation scatter correction is available for the used PET device).
  6. Absence of PSA and total testosterone tests within 4 weeks.
05

Study design

Phase
Early Phase 1
Primary purpose
Diagnostic
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
250 participants (actual)

Study arms

  • Experimental
    PET/CT Ga-68 PSMA

    Ga-68 labeled PSMA-11 (or PSMA-HBED-CC) PET/CT

    Drug: Ga-68 PSMA11

  • Experimental
    PET/CT F-18 Labeled PSMA 1007

    F-18 Labeled PSMA 1007 PET/CT

    Drug: F-18 PSMA 1007

Interventions

  • DrugGa-68 PSMA11

    Ga-68 PSMA11 PET/CT for detection of tumor location

  • DrugF-18 PSMA 1007

    F-18 PSMA 1007 PET/CT for detection of tumor location

06

What researchers measure

Primary outcomes

  1. Tumor Detection on PET/CT

    Positive predictive value on a per-patient and per-region-basis of PSMA and C-11 choline PET/CT for detection of tumor location confirmed by histopathology/biopsy or conventional imaging follow-up.

    Time frame: 12 Months post PET/CT

Secondary outcomes

  1. Impact of PSMA and C-11 choline PET on clinical management

    Descriptive statistics will be used to evaluate the impact of PSMA and C-11 choline PET on clinical management

    Time frame: 12 Months

  2. Incidence of adverse events attributable to PSMA

    Adverse events will be evaluated according to the Common Terminology Criteria for Adverse Events (CTCAE 5.0)

    Time frame: 12 Months

07

Study locations

1 site
  • Mayo Clinic
    Rochester, Minnesota 55905, United States
08

References and documents

Individual participant data

Plan to share: Yes — The IPD data from this trial will be available to other researchers that will collate similar data from multiple sites to provide data to the FDA.

Supporting information: Study protocol, Csr

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 6, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03768349
Lead sponsor
Mayo Clinic
Responsible party
Val Lowe (Prinicpal Investigator, Mayo Clinic) — Principal investigator
First posted
Dec 7, 2018
Start date
Jan 3, 2019
Primary completion
Jul 21, 2021
Completion
Jul 21, 2021
Last update
Apr 6, 2025

Study contacts

Val Lowe, M.D.
principal investigator · Mayo Clinic

Oversight

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

Not currently enrolling

This study is completed, as verified in Apr 2025. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion