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PSMA-PET to Guide Prostatectomy

Phase 2
Recruiting
Conditions
Prostate Cancer
Interventions
Diagnostic Test: PSMA-PET and SOC MRI
Diagnostic Test: SOC MRI
Registration Number
NCT05381103
Lead Sponsor
Five Eleven Pharma, Inc.
Brief Summary

In this study, 196 patients will be randomized 1:1 to either having only the standard of care MRI prior to surgery versus having the standard of care MRI and the PSMA PET scan. PET (and MRI) findings will be validated against whole mount pathology. Pre-surgical imaging findings will also be evaluated in the context of affecting subsequent surgical plans and impacting actual patient outcomes.

Detailed Description

Not available

Recruitment & Eligibility

Status
RECRUITING
Sex
Male
Target Recruitment
288
Inclusion Criteria
  1. Significant prostate cancer:

    Gleason 3+4 ≥1 core with pattern 4 ≥20%

    Gleason 3+4 ≥1 core with ≥50% total involvement of core OR ≥3 cores of Gleason 3+4 OR

    NCCN unfavorable intermediate risk OR

    Any Gleason 4+3, 4+4, 4+5, 5+4, or 5+5 AND

  2. Baseline sexual function (IIEF-EF > 17): No erectile dysfunction OR mild-to- moderate erectile dysfunction (International Index of Erectile Function Domain ≥ 17) AND

  3. The patient desires to maintain erections following treatment

  4. Planned to undergo a standard of care MRI or recently completed standard of care MRI within 6 months of scheduled date of surgery. Note: For subjects whose SOC MRI is not within 6 months or not 3Tesla, they may be enrolled in the study and the MRI will be repeated as a research study. The research MRI will not be billed to the subject's insurance, but will be scheduled at IU ORI, at no cost to study participant.

  5. Planned Prostatectomy candidate per treating oncologist with prostatectomy planned within 90 days of consent.

Exclusion Criteria
  1. Participation in another investigational trial involving research exposure to ionizing radiation concurrently or within 30 days.
  2. Does not meet safety criteria for MRI scan (e.g. metal implant that is not allowed, since MRI is required for comparison).
  3. Significant acute or chronic medical, neurologic, or illness in the subject that, in the judgment of the Principal Investigator, could compromise subject safety, limit the ability to complete the study, and/or compromise the objectives of the study.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
PSMA-PET and SOC MRI prior to surgeryPSMA-PET and SOC MRI-
SOC MRI prior to surgerySOC MRI-
Primary Outcome Measures
NameTimeMethod
IIEF-EF sub scale score18 months

International Index Erectile Function-Erectile Function sub scale score. Maximum score is 30 with higher score indicating better outcomes.

Secondary Outcome Measures
NameTimeMethod
Surgical margins1 month

postive surgical margin rates

Change in treatment plan1 month

Proportion of patients whose treatment plan would be changed by PSMA-PET. Treatment changes are defined as any change in surgical resection plan that affects one of 4 critical regions for quality of life

Ratio of positive surgical margins to nerve bundles spared1 month
EPE detection1 month

Sensitivity/Specificity for extra-prostatic extension of cancer at the nerve bundles

Incontinence bother18 months

Expanded Prostate Cancer Index Composite (EPIC-26) questions 1-2

Incontinence: using 0-1 pads per day18 months

Expanded Prostate Cancer Index Composite (EPIC-26) question 3

Urgency/frequency18 months

Expanded Prostate Cancer Index Composite (EPIC-26) questions 4-5

Erectile dysfunction: ability to achieve erection sufficient for penetration18 months

IIEF question 3

Overall mental and physical health18 months

Short Form quality of life questionnaire (SF-36)

Trial Locations

Locations (1)

Goodman Hall, Indiana Institute for Biomedical Imaging Sciences, Indiana University School of Medicine

🇺🇸

Indianapolis, Indiana, United States

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