Clinical trial Recruiting at 1 site Early Phase 1 Interventional Men only

Investigational scan for detecting recurrent prostate cancer

Official title: ENLIGHTEN: Detection by POSLUMA Following Negative Other PET-PSMA Imaging

Run by Northwestern University · NCT06813898 · Data updated 2026-11-12

This study is testing a new imaging technique to see if it can help find prostate cancer in men whose PSA levels are rising after treatment but who had a negative result on their last scan.

Quick facts

PhaseEarly Phase 1
Study typeInterventional
SexMen only
Enrollment27 (estimated)
SponsorNorthwestern University
Academic / other
Drugs / interventionsradiation
Locations1 site (Chicago, Illinois)
StatusRecruiting
StartedApril 11, 2025
Main results expectedFebruary 1, 2027
Study endsFebruary 1, 2032
Registry record updatedJuly 2, 2026
Trial IDNCT06813898 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are men with a history of prostate adenocarcinoma who have experienced biochemical recurrence and have had negative or equivocal PET PSMA imaging.

Probably not a fit

Patients who have not undergone prior treatment for prostate cancer or those with PSA levels above 0.5ng/ml may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This trial evaluates the effectiveness of the rhPSMA-7.3 PET/CT imaging technique in detecting prostate cancer in men who have rising prostate-specific antigen (PSA) levels after previous treatment but tested negative for prostate-specific membrane antigen on their last PET scan. Participants will receive an intravenous injection of rhPSMA-7.3, followed by imaging to visualize areas where the tracer accumulates, indicating potential tumor presence. The study aims to determine the detection rate of this new imaging method and its impact on patient management. Follow-up assessments will occur at 14 days and every three months for two years to monitor outcomes.

Why it matters

Potential benefit: If successful, this imaging technique could improve the detection of recurrent prostate cancer, leading to better management and treatment options for patients.

How similar studies have gone: Other studies have shown promise with similar imaging techniques, but this specific approach using rhPSMA-7.3 is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Men with a history of prostate adenocarcinoma treated with local therapy (including radical prostatectomy or radical prostatectomy and secondary therapy \[i.e. salvage radiation\])
* Men must have biochemical recurrence (defined as PSA \>= 0.1ng/ml) after therapy
* PSA \< 0.5ng/ml (within 90 days of enrollment)
* Men must have had negative or equivocal PET PSMA based imaging with 90 days of enrollment with an Food and Drug Administration (FDA) approved non-POSLUMA tracer
* Non-castrate testosterone (testosterone \[T\] \> 50ng/dL) within 90 days of study entry
* Institutional Review Board (IRB)-/Independent Ethics Committee (IEC)-approved written informed consent and privacy language as per national regulations must be obtained from the subject or legally authorized representative prior to any study-related procedures
* Patients must have the ability to understand and the willingness to sign a written informed consent prior to registration on the study
* Concurrent diseases and malignancies are permitted

Exclusion Criteria:

* Most recent PSA not between 0.1ng/ml and 0.5ng/ml
* Men with non-metastatic castrate resistant prostate cancer (defined as rising PSA and T \< 50ng/dl)
* Patients receiving 5-alpha reductase inhibitors, androgen deprivation therapy and androgen receptor antagonists within 3 months of enrollment (men may start these therapies at physician discretion immediately following POSLUMA PET PSMA scan)

Where it's running

  • Northwestern University
    Chicago, Illinois, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

  • Combining Apalutamide and Targeted Radiation for Recurrent Prostate Cancer

    This study is testing if combining a new medication with radiation therapy can help men with recurring prostate cancer feel better and live longer after surgery.

    Recruiting at 278 sites Phase 3 Eastern Cooperative Oncology Group · Anchorage, Alaska and 340 other locations · NCT04423211

  • Salvage high-dose-rate brachytherapy for locally recurrent prostate cancer

    This observational study tests whether salvage HDR brachytherapy can help men with locally recurrent prostate cancer after initial radiotherapy, using advanced imaging and biopsy to guide treatment.

    Recruiting at 8 sites Instituto de Investigación en Oncología Radioterápica - Fundación Española de Oncología Radioterápic · Benidorm, Alicante and 9 other locations · NCT07860528

  • PSMA-targeted therapy with hormone suppression for low-volume metastatic prostate cancer

    This phase II trial tests leuprolide acetate alone versus with 177Lu-PSMA-617 (with or without abiraterone acetate and prednisone) in men with hormone-sensitive, low-volume metastatic prostate cancer.

    Recruiting Phase 2 Mayo Clinic · Rochester, Minnesota · NCT07650240

  • Lower-dose radiation to parts of the prostate for some men with prostate cancer

    This study tests whether a smaller amount of radiation aimed at specific parts of the prostate can reduce side effects compared with giving the full prostate the same dose.

    Recruiting at 7 sites Phase 2 Memorial Sloan Kettering Cancer Center · Basking Ridge, New Jersey and 6 other locations · NCT07635238

  • Next-generation SABR for prostate cancer across Ireland

    This test uses focused high-dose stereotactic radiotherapy (SABR) with urethra-sparing, a rectal spacer, and nerve preservation for men with low-, intermediate-, or selected high-risk prostate cancer to try to control the tumor while reducing side effects.

    Recruiting at 2 sites Phase 2 Cancer Trials Ireland · Dublin, Leinster and 3 other locations · NCT07552168

  • Focal HDR-Brachytherapy for Prostate Cancer

    This trial tests using targeted high-dose-rate brachytherapy to treat prostate cancer patients and see if it provides local control with fewer side effects.

    Recruiting Jonsson Comprehensive Cancer Center · Los Angeles, California · NCT07468903

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.