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PSMA-PET/MRI for Radiation Treatment Planning in Patients With Locally Metastatic Prostate Cancer: A Pilot Study

PSMA-PET/MRI for Radiation Treatment Planning in Patients With Locally Metastatic Prostate Cancer: A Pilot Study

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04086966
Enrollment
10
Registered
2019-09-12
Start date
2020-08-20
Completion date
2022-02-23
Last updated
2024-04-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Metastatic Prostate Cancer

Brief summary

This pilot study will investigate the use of PSMA-PET/MRI (Positron Emission Tomography/ Magnetic Resonance Imaging)to guide radiation treatment planning in patients with known or suspected locally metastatic prostate cancer at the time of diagnosis. Patients will undergo a single PSMA-PET/MRI (or PET/CT (Computed Tomography) in some circumstances) prior to initiation of treatment. Following development of a PSMA-PET guided radiation treatment plan, therapeutic radiation will be delivered per standard-of-care parameters and assessments of feasibility and tolerability will be performed.

Interventions

DRUG[68Ga]PSMA-PET/MRI or PET/CT

\[68Ga\]PSMA-PET/MRI or PET/CT

Sponsors

University of Alabama at Birmingham
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
MALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Biopsy-proven treatment-naïve prostate adenocarcinoma with pelvic metastases known to suspected on standard-of-care staging imaging * Eligibility and plan to undergo definitive radiation therapy for prostate cancer per established standard-of-care radiation oncology clinical guidelines * Be at least 18 years of age

Exclusion criteria

* Inability to tolerate or undergo PET/MRI or PET/CT * Previous or current hematologic or lymphatic disorder (including leukemia, lymphoma, Castleman's disease, etc.) * Recurrent prostate adenocarcinoma * Known distant metastatic disease * Current or prior treatment for prostate cancer * Known allergy to glucagon * Previous diagnosis of insulinoma or pheochromocytoma

Design outcomes

Primary

MeasureTime frame
The Number of Patients Who Demonstrate Pelvic Lymph Node Metastases on PSMA-PET/MRI That Were Not Detected on MRI1 scan

Secondary

MeasureTime frame
The Total Number of Pelvic Nodal Metastases Detected on PSMA-PET/MRI1 scan
Number of Patients in Whom Dose-escalated Radiotherapy Can be Feasibly Delivered1 simulation scan
Number of Patients Who Experience CTCAE (Common Terminology Criteria for Adverse Events) Grade 3-5 GI or GU Toxicities18 months
The Total Number of Pelvic Nodal Metastases Detected on MRI1 scan

Countries

United States

Participant flow

Participants by arm

ArmCount
Metastatic Prostate Cancer Arm
\[68Ga\]PSMA-11 PET/MRI or PET/CT for guiding the radiation treatment plan in patients with known or suspected locally metastatic prostate cancer \[68Ga\]PSMA-PET/MRI or PET/CT: \[68Ga\]PSMA-PET/MRI or PET/CT
10
Total10

Baseline characteristics

CharacteristicMetastatic Prostate Cancer Arm
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
8 Participants
Age, Categorical
Between 18 and 65 years
2 Participants
Race and Ethnicity Not Collected— Participants
Region of Enrollment
United States
10 Participants
Sex: Female, Male
Female
0 Participants
Sex: Female, Male
Male
10 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 10
other
Total, other adverse events
0 / 10
serious
Total, serious adverse events
0 / 10

Outcome results

Primary

The Number of Patients Who Demonstrate Pelvic Lymph Node Metastases on PSMA-PET/MRI That Were Not Detected on MRI

Time frame: 1 scan

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Metastatic Prostate Cancer ArmThe Number of Patients Who Demonstrate Pelvic Lymph Node Metastases on PSMA-PET/MRI That Were Not Detected on MRI3 Participants
Secondary

Number of Patients in Whom Dose-escalated Radiotherapy Can be Feasibly Delivered

Time frame: 1 simulation scan

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Metastatic Prostate Cancer ArmNumber of Patients in Whom Dose-escalated Radiotherapy Can be Feasibly Delivered8 Participants
Secondary

Number of Patients Who Experience CTCAE (Common Terminology Criteria for Adverse Events) Grade 3-5 GI or GU Toxicities

Time frame: 18 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Metastatic Prostate Cancer ArmNumber of Patients Who Experience CTCAE (Common Terminology Criteria for Adverse Events) Grade 3-5 GI or GU Toxicities0 Participants
Secondary

The Total Number of Pelvic Nodal Metastases Detected on MRI

Time frame: 1 scan

ArmMeasureValue (NUMBER)
Metastatic Prostate Cancer ArmThe Total Number of Pelvic Nodal Metastases Detected on MRI9 lymph nodes
Secondary

The Total Number of Pelvic Nodal Metastases Detected on PSMA-PET/MRI

Time frame: 1 scan

ArmMeasureValue (NUMBER)
Metastatic Prostate Cancer ArmThe Total Number of Pelvic Nodal Metastases Detected on PSMA-PET/MRI19 lymph nodes

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026