Pharmacokinetics of IA and IV Ga68-PSMA-11 Infusion
Pharmacokinetic Comparison of Selective Prostatic Arterial and Intravenous PSMA Radioligand Infusions in Treatment-Naïve Prostate Cancer Patients
2 other identifiers
interventional
5
1 country
1
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
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for early_phase_1
Started Oct 2021
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 14, 2021
CompletedFirst Posted
Study publicly available on registry
July 26, 2021
CompletedStudy Start
First participant enrolled
October 13, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 22, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
March 22, 2023
CompletedApril 7, 2023
April 1, 2023
1.4 years
July 14, 2021
April 5, 2023
Conditions
Keywords
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
EXPERIMENTALPatients 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.
Interventions
Undergo angiogram
Undergo prostatic arterial catheterization
Given IV and IA
Undergo PET scan
Eligibility Criteria
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
- Ryan Kohlbrenner, MDlead
- Radiological Society of North Americacollaborator
Study Sites (1)
University of California San Francisco
San Francisco, California, 94143, United States
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.
PMID: 39254446DERIVEDKohlbrenner 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.
PMID: 39136560DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Ryan Kohlbrenner
University of California, San Francisco
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