- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04976257
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
Study Overview
Status
Conditions
- Prostate Adenocarcinoma
- Stage IV Prostate Cancer AJCC v8
- Prostate Carcinoma
- Stage IIIA Prostate Cancer AJCC v8
- Stage IIIB Prostate Cancer AJCC v8
- Stage IIC Prostate Cancer AJCC v8
- Stage III Prostate Cancer AJCC v8
- Stage IIIC Prostate Cancer AJCC v8
- Stage IVA Prostate Cancer AJCC v8
- Stage IVB Prostate Cancer AJCC v8
Detailed Description
PRIMARY OBJECTIVE:
I. To compare the maximum standardized uptake value (SUVmax) in tumoral regions-of-interest during prostatic arterial and intravenous 68Ga-PSMA-11 infusions.
SECONDARY OBJECTIVES:
I. To compare the tumoral time-activity curves for selective prostatic arterial and intravenous 68Ga-PSMA-11 infusions.
II. To study PSMA receptor saturation kinetics during selective prostatic arterial infusion of 68Ga-PSMA-11 (obtained only from arterial time activity curves [TACs] ipsilateral to the side of infusion).
OUTLINE:
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. 1-14 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.
After completion of study, patients are followed up with 24 hours after the IA infusion and PET scan.
Study Type
Enrollment (Actual)
Phase
- Early Phase 1
Contacts and Locations
Study Locations
-
-
California
-
San Francisco, California, United States, 94143
- University of California San Francisco
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
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
Exclusion Criteria:
- 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
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Ga-PSMA-11, PET/CT, Angiogram, and Prostatic Arterial Catheterization
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.
|
Undergo angiogram
Undergo prostatic arterial catheterization
Given IV and IA
Other Names:
Undergo PET scan
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Maximum standardized uptake value (SUVmax)
Time Frame: Day 1 and from Day 2 up to Day 15 (2 days total)
|
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 Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Comparison of Mean SUV (SUVmean)
Time Frame: Day 1 and from Day 2 up to Day 15 (2 days total)
|
Paired t-tests will determine whether SUVmean is different for intra-arterial (IA) time activity curves (TACs) when compared to intravenous (IV) TACs.
Means/medians, ranges/standard deviations will be calculated for each endpoint.
|
Day 1 and from Day 2 up to Day 15 (2 days total)
|
Comparison of Time to SUVmax (TSUV)
Time Frame: Day 1 and from Day 2 up to Day 15 (2 days total)
|
Paired t-tests will determine whether TSUV is different for IA TACs when compared to IV TACs.
Means/medians, ranges/standard deviations will be calculated for each endpoint.
|
Day 1 and from Day 2 up to Day 15 (2 days total)
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Comparison of Area under the curve (AUC)
Time Frame: Day 1 and from Day 2 up to Day 15 (2 days total)
|
Paired t-tests will determine whether AUCs are different for IA TACs when compared to IV TACs.
Means/medians, ranges/standard deviations will be calculated for each endpoint.
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Day 1 and from Day 2 up to Day 15 (2 days total)
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Comparison of Rate of 68Ga-PSMA-11 uptake
Time Frame: Day 1 and from Day 2 up to Day 15 (2 days total)
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To assess whether the rate of uptake is significantly different with selective arterial infusion, a two-sided paired t-test will compare the slopes for Selective arterial infusion, tumor ipsilateral to the side of radiotracer injection (IAIpsi) curves and Intravenous infusion, tumor ipsilateral to the side of corresponding arterial injection (IVIpsi) curves during each of the nine time intervals.
Selective arterial infusion, tumor contralateral to the side of radiotracer injection (IACont) slopes will be similarly compared to those acquired from corresponding Intravenous infusion, tumor contralateral to the side of corresponding arterial injection (IVCont) data.
Means/medians, ranges/standard deviations will be calculated for each endpoint.
|
Day 1 and from Day 2 up to Day 15 (2 days total)
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Comparison of Time to early saturation effects
Time Frame: 1 day
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Specific to the IAIpsi TACs, the time to early saturation effects (Tese) will represent the time at which the second derivative of the curve becomes negative (i.e. when concavity in the curve is first noted).
For the purposes of Tese, the aforementioned curve partitioning method will not be used.
Descriptive statistics of Tese will be established, along with statistics for the corresponding mass dose administered (MDese) at Tese.
Means/medians, ranges/standard deviations will be calculated for each endpoint.
|
1 day
|
Comparison of Mass dose at saturation
Time Frame: Day 1 and from Day 2 up to Day 15 (2 days total)
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Descriptive statistics of Tese will be established, along with statistics for the corresponding mass dose administered (MDese) at Tese.
Means/medians, ranges/standard deviations will be calculated for each endpoint.
|
Day 1 and from Day 2 up to Day 15 (2 days total)
|
Comparison of Mean SUV during 15-minute washout (SUVwashout)
Time Frame: 1 day
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The mean SUVwashout and its standard deviation will be calculated for the 15-minute post-injection periods.
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1 day
|
Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Ryan Kohlbrenner, University of California, San Francisco
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 21921
- NCI-2021-06580 (Registry Identifier: CTRP (Clinical Trial Reporting Program))
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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