NCT04976257

Brief Summary

Prostate-specific membrane antigen (PSMA) agents have shown promise in detecting and treating prostate cancer. Gallium-68-labeled PSMA-11 (68Ga-PSMA-11) is a radioactive agent that binds to prostate cancer cells and can be imaged using positron emission tomography (PET) scanners that detect radioactivity in the body. This early phase I study will use PET to determine if delivering 68Ga-PSMA-11 directly into the prostatic artery (intra-arterial (IA) administration) results in greater uptake in the prostate than delivering 68Ga-PSMA-11 into a vein in the arm (intravenous (IV) administration).

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
5

participants targeted

Target at below P25 for early_phase_1

Timeline
Completed

Started Oct 2021

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 14, 2021

Completed
12 days until next milestone

First Posted

Study publicly available on registry

July 26, 2021

Completed
3 months until next milestone

Study Start

First participant enrolled

October 13, 2021

Completed
1.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 22, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 22, 2023

Completed
Last Updated

April 7, 2023

Status Verified

April 1, 2023

Enrollment Period

1.4 years

First QC Date

July 14, 2021

Last Update Submit

April 5, 2023

Conditions

Keywords

Ga68-PSMA-11

Outcome Measures

Primary Outcomes (1)

  • Maximum standardized uptake value (SUVmax)

    A two-sided paired t-test will determine whether the ipsilateral SUVmax values obtained during selective arterial 68Ga-PSMA-11 infusions are greater than those obtained during venous infusions. A similar paired analysis will be made during arterial infusions to compare tumoral regions of interest (ROIs) ipsilateral and contralateral to the side of the infusion. Means/medians, ranges/standard deviations will be calculated for each endpoint.

    Day 1 and from Day 2 up to Day 15 (2 days total)

Secondary Outcomes (7)

  • Comparison of Mean SUV (SUVmean)

    Day 1 and from Day 2 up to Day 15 (2 days total)

  • Comparison of Time to SUVmax (TSUV)

    Day 1 and from Day 2 up to Day 15 (2 days total)

  • Comparison of Area under the curve (AUC)

    Day 1 and from Day 2 up to Day 15 (2 days total)

  • Comparison of Rate of 68Ga-PSMA-11 uptake

    Day 1 and from Day 2 up to Day 15 (2 days total)

  • Comparison of Time to early saturation effects

    1 day

  • +2 more secondary outcomes

Study Arms (1)

Ga-PSMA-11, PET/CT, Angiogram, and Prostatic Arterial Catheterization

EXPERIMENTAL

Patients receive 68Ga-PSMA-11 IV over 30 minutes and undergo dynamic PET imaging over infusion period and for 15 minutes after on day 1. One to 14 days later, patients undergo pelvic angiogram and prostatic arterial catheterization. Patients then receive 68Ga-PSMA-11 IA over 30 minutes and undergo dynamic PET imaging over infusion period and for 15 minutes after.

Procedure: AngiogramProcedure: CatheterizationDrug: Gallium Ga-labeled PSMA-11Procedure: Positron Emission Tomography

Interventions

AngiogramPROCEDURE

Undergo angiogram

Ga-PSMA-11, PET/CT, Angiogram, and Prostatic Arterial Catheterization

Undergo prostatic arterial catheterization

Ga-PSMA-11, PET/CT, Angiogram, and Prostatic Arterial Catheterization

Given IV and IA

Also known as: 68Ga-PSMA-11
Ga-PSMA-11, PET/CT, Angiogram, and Prostatic Arterial Catheterization

Undergo PET scan

Also known as: Medical Imaging, Positron Emission Tomography, PET, PET Scan, Positron Emission Tomography Scan, Positron-Emission Tomography, proton magnetic resonance spectroscopic imaging
Ga-PSMA-11, PET/CT, Angiogram, and Prostatic Arterial Catheterization

Eligibility Criteria

Age18 Years - 80 Years
Sexmale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age greater than or equal to 18 years and less than or equal to 80 years.
  • Children are excluded from this study because the disease does not occur in children
  • Individuals from age 76 to age 80 must have a prior CT of the abdomen and pelvis within 5 years of first PSMA scan demonstrating non-occlusive pelvic atherosclerosis, regardless of smoking status
  • Individuals over the age of 80 are excluded from this study to improve the likelihood of a catheterizable prostatic artery, given the higher rates of occlusive atherosclerosis with advanced age
  • Ability to provide informed consent
  • Biopsy-proven unilateral or bilateral prostate adenocarcinoma, any stage (any N or any M)
  • Large tumor burden, characterized by either
  • A discrete lesion with maximal tumor diameter \>= 2.0cm on at least one affected side, documented on prostate magnetic resonance imaging (MRI) or Transrectal ultrasound (TRUS) within 4 months of first scan.
  • Infiltrative disease with primary pattern Gleason 4 adenocarcinoma in at least 4 of 6 sextant core biopsy locations on at least one affected side, documented in a surgical pathology report within 4 months of first scan.
  • Gleason score \>= 4+4
  • Cancer of the Prostate Risk Assessment (CAPRA) score \>= 6

You may not qualify if:

  • Body mass index (BMI) \> 35 kg/m\^2
  • Prior treatment for prostate cancer, or any use of anti-androgen therapy within 3 months of first scan
  • History of any pelvic radiotherapy
  • Severe atherosclerosis from prior CT imaging study, or greater than 10 pack-year smoking history if no prior imaging available.
  • Stage IV or V chronic kidney disease by estimated glomerular filtration rate (eGFR) within 45 days of first scan
  • Platelet count \< 50 x 10\^9/L and/or international normalized ratio \> 1.5
  • Severe allergy to iodinated contrast
  • Active urinary tract infection or recent episode of prostatitis within 1 month of first scan
  • Inability to tolerate prolonged supine positioning

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of California San Francisco

San Francisco, California, 94143, United States

Location

Related Publications (2)

  • Magnuska ZA, Roy R, Palmowski M, Kohlen M, Winkler BS, Pfeil T, Boor P, Schulz V, Krauss K, Stickeler E, Kiessling F. Combining Radiomics and Autoencoders to Distinguish Benign and Malignant Breast Tumors on US Images. Radiology. 2024 Sep;312(3):e232554. doi: 10.1148/radiol.232554.

  • Kohlbrenner R, Wu X, Nguyen HG, Cooperberg MR, Chakravarty T, Carroll PR, Hope TA. Pharmacokinetic Comparison of Selective Prostatic Arterial and Intravenous PSMA PET/CT Radioligand Infusions in Primary Prostatic Adenocarcinoma. Radiology. 2024 Aug;312(2):e232544. doi: 10.1148/radiol.232544.

MeSH Terms

Conditions

Prostatic Neoplasms

Interventions

Catheterizationgallium 68 PSMA-11Magnetic Resonance Spectroscopy

Condition Hierarchy (Ancestors)

Genital Neoplasms, MaleUrogenital NeoplasmsNeoplasms by SiteNeoplasmsGenital Diseases, MaleGenital DiseasesUrogenital DiseasesProstatic DiseasesMale Urogenital Diseases

Intervention Hierarchy (Ancestors)

TherapeuticsInvestigative TechniquesSpectrum AnalysisChemistry Techniques, Analytical

Study Officials

  • Ryan Kohlbrenner

    University of California, San Francisco

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
early phase 1
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

July 14, 2021

First Posted

July 26, 2021

Study Start

October 13, 2021

Primary Completion

March 22, 2023

Study Completion

March 22, 2023

Last Updated

April 7, 2023

Record last verified: 2023-04

Data Sharing

IPD Sharing
Will not share

Locations