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Prostate CancerESCAPENCT05948657

Evaluation of Prostate Specific Membrane Antigen Positron Emission Tomography-Computed Tomography in Active Surveillance for Prostate CancEr

A study testing PSMA-PET CT in people with Prostate Cancer, run by Weill Medical College of Cornell University at 4 sites in United States.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

This study will be assessing the ability of PSMA-PET CT to determine the absence of clinically significant prostate cancer in patients on active surveillance (AS) with low risk and favorable intermediate-risk prostate cancer. Read more about this study

Who is it for?
Ages 18 years and older, men only
Conditions the study is for
Prostate Cancer
What is being tested?
PSMA-PET CT
Could I receive a placebo?
No, everyone receives an active treatment
How many people
200 participants
Where
4 sitesUnited States
Study dates
26 Feb 2024to Dec 2028
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Males aged ≥ 18.
  • Histologically confirmed low or favorable intermediate risk prostate cancer per NCCN guidelines. (Note: Grade Group 2 must have 20% or less involvement in every core and no presence of cribiform or intraductal carcinoma).
  • PSA < 20 ng/ml.
  • Ability to undergo yearly PSMA-PET CT.
  • Ability to undergo yearly prostate mpMRI.
  • Ability to undergo transrectal or transperineal template and fusion prostate biopsy.
  • Willingness to undergo yearly prostate biopsies.

Who cannot join

  • History of prior treatment for prostate cancer.
  • History of systemic therapy for prostate cancer.
  • Inability to undergo transrectal ultrasound.
  • Life expectancy less than 10 years.
  • Not interested in pursuing active surveillance.
  • Initial diagnosis of prostate cancer greater than 15 months.

Trial locations and contacts

4 sites in 1 country. Contact the study team or a site near you to ask about taking part.

United States4 sites, 4 recruiting
  • UH Cleveland Medical Center

    Cleveland, Ohio, 44106

    Matt Ferrebee, Matthew.Ferrebee@UHhospitals.org

    Jonathan Shoag, M.D.

    Recruiting
  • UCLA

    Los Angeles, California, 90005

    Sarah Yuan, say7008@med.cornell.edu

    Wayne Brisbane, M.D.

    Not yet recruiting
  • Weill Cornell Medicine - New York Presbyterian Hospital

    New York, New York, 10065

    Timothy McClure, M.D., tim9047@med.cornell.edu

    Timothy McClure, M.D.

    Recruiting
  • UCSF

    San Francisco, California, 94143

    Sarah Yuan, say7008@med.cornell.edu

    Matthew Cooperberg, M.D.

    Not yet recruiting

Other trials in United States

About this study

Official title: ESCAPE - Evaluation of Prostate Specific Membrane Antigen Positron Emission Tomography-Computed Tomography in Active Surveillance for Prostate CancEr

This study will be assessing the ability of PSMA-PET CT to determine the absence of clinically significant prostate cancer in patients on active surveillance (AS) with low risk and favorable intermediate-risk prostate cancer.

Read the detailed description

This is a prospective, multicenter, nonrandomized single-arm study assessing the diagnostic accuracy of PSMA-PET CT (Prostate Specific Membrane Antigen Positron Emission Tomography-Computed Tomography) in determining the absence of clinically significant prostate cancer in patients on active surveillance (AS).The trial will enroll 200 subjects for low and favorable intermediate-risk prostate cancer patients per NCCN guidelines who have elected to pursue active surveillance.

Conditions
Prostate Cancer
Being tested
PSMA-PET CT
Medical subject headings
Prostatic Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • PSMA-PET CTDiagnostic test

    Patients will undergo PSMA-PET CT (Prostate Specific Membrane Antigen Positron Emission Tomography-Computed Tomography) at baseline, 12 month and 24 month time point.

Study groups in NCT05948657
Study groupRoleWhat they receive
PSMA-PET CTOtherPatients will undergo PSMA-PET CT (Prostate Specific Membrane Antigen Positron Emission Tomography-Computed Tomography) at baseline, 12 month and 24 month time point.
Receives: Diagnostic Test: PSMA-PET CT

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Negative predictive value (NPV)

    Negative predictive value (NPV): The NPV is defined as the number of negative image results with identified clinically insignificant prostate cancer on biopsy divided by the number of negative image results.

    Measured: Baseline

  2. Negative predictive value (NPV)

    Negative predictive value (NPV): The NPV is defined as the number of negative image results with identified clinically insignificant prostate cancer on biopsy divided by the number of negative image results.

    Measured: 12 months

  3. Negative predictive value (NPV)

    Negative predictive value (NPV): The NPV is defined as the number of negative image results with identified clinically insignificant prostate cancer on biopsy divided by the number of negative image results.

    Measured: 24 months

Secondary outcomes (33)
  1. Positive predictive value (PPV) of PSMA PET.

    PPV of PSMA PET. Positive predictive value (PPV): The PPV is defined as the number of positive image results with identified csPCa on biopsy divided by the number of positive image results.

    Measured: Baseline

  2. Positive predictive value (PPV) of PSMA PET.

    PPV of PSMA PET. Positive predictive value (PPV): The PPV is defined as the number of positive image results with identified csPCa on biopsy divided by the number of positive image results.

    Measured: 12 months

  3. Positive predictive value (PPV) of PSMA PET.

    PPV of PSMA PET. Positive predictive value (PPV): The PPV is defined as the number of positive image results with identified csPCa on biopsy divided by the number of positive image results.

    Measured: 24 months

  4. Number of patients with negative PSMA pet scan.

    Measured: Baseline

  5. Number of patients with negative PSMA pet scan.

    Measured: 12 months

  6. Number of patients with negative PSMA pet scan.

    Measured: 24 months

  7. Number of positive scans on mpMRI

    Specificity and sensitivity of PSMA-PET, mpMRI, and the combination.

    Sensitivity: The sensitivity will be defined as the number of positive image results with a csPCa upon biopsy divided by the number of biopsied patients with csPCa following the imaging.

    Measured: Baseline

  8. Number of positive scans on mpMRI

    Specificity and sensitivity of PSMA-PET, mpMRI, and the combination.

    Sensitivity: The sensitivity will be defined as the number of positive image results with a csPCa upon biopsy divided by the number of biopsied patients with csPCa following the imaging.

    Measured: 12 months

  9. Number of positive scans on mpMRI

    Specificity and sensitivity of PSMA-PET, mpMRI, and the combination.

    Sensitivity: The sensitivity will be defined as the number of positive image results with a csPCa upon biopsy divided by the number of biopsied patients with csPCa following the imaging.

    Measured: 24 months

  10. Number of positive scans on PSMA-PET

    Specificity and sensitivity of PSMA-PET, mpMRI, and the combination.

    Sensitivity: The sensitivity will be defined as the number of positive image results with a csPCa upon biopsy divided by the number of biopsied patients with csPCa following the imaging.

    Measured: Baseline

  11. Number of positive scans on PSMA-PET

    Specificity and sensitivity of PSMA-PET, mpMRI, and the combination.

    Sensitivity: The sensitivity will be defined as the number of positive image results with a csPCa upon biopsy divided by the number of biopsied patients with csPCa following the imaging.

    Measured: 12 months

  12. Number of positive scans on PSMA-PET

    Specificity and sensitivity of PSMA-PET, mpMRI, and the combination.

    Sensitivity: The sensitivity will be defined as the number of positive image results with a csPCa upon biopsy divided by the number of biopsied patients with csPCa following the imaging.

    Measured: 24 months

  13. Number of positive scans on both PSMA-PET and mpMRI

    Specificity and sensitivity of PSMA-PET, mpMRI, and the combination.

    Sensitivity: The sensitivity will be defined as the number of positive image results with a csPCa upon biopsy divided by the number of biopsied patients with csPCa following the imaging.

    Measured: Baseline

  14. Number of positive scans on both PSMA-PET and mpMRI

    Specificity and sensitivity of PSMA-PET, mpMRI, and the combination.

    Sensitivity: The sensitivity will be defined as the number of positive image results with a csPCa upon biopsy divided by the number of biopsied patients with csPCa following the imaging.

    Measured: 12 months

  15. Number of positive scans on both PSMA-PET and mpMRI

    Specificity and sensitivity of PSMA-PET, mpMRI, and the combination.

    Sensitivity: The sensitivity will be defined as the number of positive image results with a csPCa upon biopsy divided by the number of biopsied patients with csPCa following the imaging.

    Measured: 24 months

  16. Number of negative scans on mpMRI

    Specificity and sensitivity of PSMA-PET, mpMRI, and the combination.

    Specificity: The specificity is defined as the number of negative image results followed by the absence of csPCa in the corresponding biopsy divided by the number of biopsies that did not identify csPCa.

    Measured: Baseline

  17. Number of negative scans on mpMRI

    Specificity and sensitivity of PSMA-PET, mpMRI, and the combination.

    Specificity: The specificity is defined as the number of negative image results followed by the absence of csPCa in the corresponding biopsy divided by the number of biopsies that did not identify csPCa.

    Measured: 12 months

  18. Number of negative scans on mpMRI

    Specificity and sensitivity of PSMA-PET, mpMRI, and the combination.

    Specificity: The specificity is defined as the number of negative image results followed by the absence of csPCa in the corresponding biopsy divided by the number of biopsies that did not identify csPCa.

    Measured: 24 months

  19. Number of negative scans on PSMA-PET

    Specificity and sensitivity of PSMA-PET, mpMRI, and the combination.

    Specificity: The specificity is defined as the number of negative image results followed by the absence of csPCa in the corresponding biopsy divided by the number of biopsies that did not identify csPCa.

    Measured: Baseline

  20. Number of negative scans on PSMA-PET

    Specificity and sensitivity of PSMA-PET, mpMRI, and the combination.

    Specificity: The specificity is defined as the number of negative image results followed by the absence of csPCa in the corresponding biopsy divided by the number of biopsies that did not identify csPCa.

    Measured: 12 months

  21. Number of negative scans on PSMA-PET

    Specificity and sensitivity of PSMA-PET, mpMRI, and the combination.

    Specificity: The specificity is defined as the number of negative image results followed by the absence of csPCa in the corresponding biopsy divided by the number of biopsies that did not identify csPCa.

    Measured: 24 months

  22. Number of negative scans on both PSMA-PET and mpMRI

    Specificity and sensitivity of PSMA-PET, mpMRI, and the combination.

    Specificity: The specificity is defined as the number of negative image results followed by the absence of csPCa in the corresponding biopsy divided by the number of biopsies that did not identify csPCa.

    Measured: Baseline

  23. Number of negative scans on both PSMA-PET and mpMRI

    Specificity and sensitivity of PSMA-PET, mpMRI, and the combination.

    Specificity: The specificity is defined as the number of negative image results followed by the absence of csPCa in the corresponding biopsy divided by the number of biopsies that did not identify csPCa.

    Measured: 12 months

  24. Number of negative scans on both PSMA-PET and mpMRI

    Specificity and sensitivity of PSMA-PET, mpMRI, and the combination.

    Specificity: The specificity is defined as the number of negative image results followed by the absence of csPCa in the corresponding biopsy divided by the number of biopsies that did not identify csPCa.

    Measured: 24 months

  25. Number of patients who have clinically significant Prostate Cancer (csPCa) detected by PSMA-PET.

    The proportion of csPCa detected by PSMA-PET, mpMRI, and the combination. Proportion of patients with csPCa: this will be the number of patients identified as having csPCa divided by the number of patients with a biopsy.

    Measured: Baseline

  26. Number of patients who have clinically significant Prostate Cancer (csPCa) detected by PSMA-PET.

    The proportion of csPCa detected by PSMA-PET, mpMRI, and the combination. Proportion of patients with csPCa: this will be the number of patients identified as having csPCa divided by the number of patients with a biopsy.

    Measured: 12 months

  27. Number of patients who have clinically significant Prostate Cancer (csPCa) detected by PSMA-PET.

    The proportion of csPCa detected by PSMA-PET, mpMRI, and the combination. Proportion of patients with csPCa: this will be the number of patients identified as having csPCa divided by the number of patients with a biopsy.

    Measured: 24 months

  28. Number of patients who have clinically significant Prostate Cancer (csPCa) detected by mpMRI.

    The proportion of csPCa detected by PSMA-PET, mpMRI, and the combination. Proportion of patients with csPCa: this will be the number of patients identified as having csPCa divided by the number of patients with a biopsy.

    Measured: Baseline

  29. Number of patients who have clinically significant Prostate Cancer (csPCa) detected by mpMRI.

    The proportion of csPCa detected by PSMA-PET, mpMRI, and the combination. Proportion of patients with csPCa: this will be the number of patients identified as having csPCa divided by the number of patients with a biopsy.

    Measured: 12 months

  30. Number of patients who have clinically significant Prostate Cancer (csPCa) detected by mpMRI.

    The proportion of csPCa detected by PSMA-PET, mpMRI, and the combination. Proportion of patients with csPCa: this will be the number of patients identified as having csPCa divided by the number of patients with a biopsy.

    Measured: 24 months

  31. Number of patients who have clinically significant Prostate Cancer (csPCa) detected on PSMA-PET and mpMRI.

    The proportion of csPCa detected by PSMA-PET, mpMRI, and the combination. Proportion of patients with csPCa: this will be the number of patients identified as having csPCa divided by the number of patients with a biopsy.

    Measured: Baseline

  32. Number of patients who have clinically significant Prostate Cancer (csPCa) detected on PSMA-PET and mpMRI.

    The proportion of csPCa detected by PSMA-PET, mpMRI, and the combination. Proportion of patients with csPCa: this will be the number of patients identified as having csPCa divided by the number of patients with a biopsy.

    Measured: 12 months

  33. Number of patients who have clinically significant Prostate Cancer (csPCa) detected on PSMA-PET and mpMRI.

    The proportion of csPCa detected by PSMA-PET, mpMRI, and the combination. Proportion of patients with csPCa: this will be the number of patients identified as having csPCa divided by the number of patients with a biopsy.

    Measured: 24 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted17 Jul 2023
  2. Study start26 Feb 2024
  3. Primary completionDec 2028 (estimated)
  4. Study completionDec 2028 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Diagnosis
Allocation
Not applicable
Intervention model
Single group
Model description
Patients will undergo PSMA-PET CT (Prostate Specific Membrane Antigen Positron Emission Tomography-Computed Tomography) at baseline, 12 month and 24 month time point.
Masking
None (open label)
Enrolment
200 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05948657
Sponsor's protocol ID
23-03025893
Acronym
ESCAPE
Status last verified
Apr 2026
First submitted
20 Jun 2023
Last updated
4 May 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing PSMA-PET CT in people with Prostate Cancer, run by Weill Medical College of Cornell University at 4 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 4 May 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Holly Kuczynski (646-962-7523, hok4001@med.cornell.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Negative predictive value (NPV) (time frame: Baseline). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 May 2026.

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