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68-Ga PSMA 11 PET/MRI and 68-Ga RM2 PET/MRI for Evaluation of Prostate Cancer Response to HIFU Therapy

A Pilot Study of 68Ga PSMA 11 PET/MRI and 68Ga RM2 PET/MRI for Evaluation of Prostate Cancer Response to HIFU Therapy

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03949517
Enrollment
14
Registered
2019-05-14
Start date
2019-04-09
Completion date
2022-03-07
Last updated
2024-01-30

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

Conditions

Prostate Cancer

Keywords

Prostate Cancer

Brief summary

This study is being conducted to determine whether the combination of imaging agents 68-Ga RM2 and 68-Ga PMSA11 is better at assessing response to high intensity focused ultrasound (HIFU) or high dose rate (HDR) local therapy than standard imaging or biopsy in patients with known prostate cancer.

Detailed description

Primary Objective: To determine feasibility of 68Ga-PSMA-11 PET/MRI and 68Ga-RM2 PET/MRI for evaluation of HIFU or HDR local therapy in patients with known prostate cancer.

Interventions

DRUG68-Ga RM2

Radioactive agent

Radioactive agent

Investigational software and coils in PET/MR Scan by General Electric Healthcare

PROCEDUREPET/MRI

Positron emission tomography (PET)/Magnetic resonance imaging (MRI) Scan

Sponsors

General Electric
CollaboratorINDUSTRY
Andrei Iagaru
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Known prostate cancer * Planned HIFU or HDR local therapy * Able to provide written consent * Karnofsky performance status of 50 (or Eastern Cooperative Oncology Group (ECOG) /World Health Organization (WHO) equivalent)

Exclusion criteria

* Patients not capable of getting PET study due to weight, claustrophobia, or inability to lay still for the duration of the exam * Metallic implants (contraindicated for MRI)

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants for Which an Assessment of PET Based Therapeutic Response to HIFU is Successfully ObtainedUp to approximately 2 hours to complete each scanPositron emission tomography (PET) based of Assessment of Local Therapeutic Response. Therapeutic response to HIFU will be assessed by 68-Ga PSMA 11 and 68-Ga RM2 PET scans.

Countries

United States

Participant flow

Participants by arm

ArmCount
68-Ga PSMA11+68-Ga RM2
68-Ga PSMA11 first followed by 68-Ga RM2 within 2 weeks. Participant will be injected IV with 140 ± 20% mBq of 68-Ga RM2 OR 3 to 7 mCi of 68-Ga PSMA11
7
68-Ga RM2+68-Ga PSMA11
68-Ga RM2 first followed by 68-Ga PSMA11 within 2 weeks. Participant will be injected IV with 140 ± 20% mBq of 68-Ga RM2 OR 3 to 7 mCi of 68-Ga PSMA11
7
Total14

Baseline characteristics

Characteristic68-Ga PSMA11+68-Ga RM2Total68-Ga RM2+68-Ga PSMA11
Age, Continuous67.5 years
STANDARD_DEVIATION 7.5
64.5 years
STANDARD_DEVIATION 8
63.9 years
STANDARD_DEVIATION 8.1
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
7 Participants14 Participants7 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants1 Participants1 Participants
Race (NIH/OMB)
Black or African American
0 Participants1 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
7 Participants12 Participants5 Participants
Region of Enrollment
United States
7 Participants14 Participants7 Participants
Sex: Female, Male
Female
0 Participants0 Participants0 Participants
Sex: Female, Male
Male
7 Participants14 Participants7 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 140 / 14
other
Total, other adverse events
0 / 140 / 14
serious
Total, serious adverse events
0 / 140 / 14

Outcome results

Primary

Number of Participants for Which an Assessment of PET Based Therapeutic Response to HIFU is Successfully Obtained

Positron emission tomography (PET) based of Assessment of Local Therapeutic Response. Therapeutic response to HIFU will be assessed by 68-Ga PSMA 11 and 68-Ga RM2 PET scans.

Time frame: Up to approximately 2 hours to complete each scan

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
68-Ga PSMA11Number of Participants for Which an Assessment of PET Based Therapeutic Response to HIFU is Successfully Obtained14 Participants
68-Ga RM2Number of Participants for Which an Assessment of PET Based Therapeutic Response to HIFU is Successfully Obtained14 Participants

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