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68Ga-RM2 for PET/CT of Gastrin Releasing Peptide Receptor (GRPr) Expression in Prostate Cancer

A Phase II Study of 68Ga-RM2 for PET/CT of Gastrin Releasing Peptide Receptor (GRPr) Expression in Prostate Cancer

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02559115
Enrollment
19
Registered
2015-09-24
Start date
2015-09-21
Completion date
2020-06-18
Last updated
2021-05-18

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

Conditions

Prostate Cancer

Keywords

68Ga-RM2, PET/CT scan, Gastrin Releasing Peptide Receptor (GRPr), 14-146

Brief summary

The purpose of this study is to see if a new diagnostic research agent named 68Ga-RM2 can show prostate cancer on a PET/CT scan. 68Ga-RM2 stands for Galium-68 labeled DOTA-4-amino-1-carboxymethylpiperidine-D-Phe-Gln-Trp-Ala-Val-Gly-His-Sta-Leu-NH2. This study is being done because there are unmet medical needs to improve the current ways of detecting prostate cancers before surgery.

Interventions

RADIATION68Ga-RM2 (RM2)
DEVICEPET/CT Scan

Sponsors

Memorial Sloan Kettering Cancer Center
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

* Age ≥18 years * Biopsy proven adenocarcinoma of the prostate * Patients with low-risk, intermediate-risk and high-risk tumors according to NCCN guidelines (2.2014) will be included * Planned radical prostatectomy at MSKCC * Multiparametric MRI of the pelvis (performed or planned) as routine care

Exclusion criteria

* Patients meeting any of the following

Design outcomes

Primary

MeasureTime frameDescription
Localizing Tumorswithin two weeks prior to the planned prostatectomyLocalization will be defined using a total of 12 regions within the prostate: right and left base, midgland and apex in both peripheral and transition zones. The uptake on each region will be assessed by a radiologist blinded to standard of care imaging and clinical characteristics. Histopathological confirmation will be used as the gold standard.

Countries

United States

Participant flow

Participants by arm

ArmCount
PET/CT Imaging With 68Ga-RM2
The intervention is the administration of a single dose of 150-200 MBq 68Ga-RM2 (mass \<= 30 μg) for imaging purposes. This will be followed by a 30-40 min PET/CT study after a waiting period of 60 min (+/- 10 min). Prior clinical experience suggests that imaging can be performed within 1 hour post injection (27, 28). MR imaging and prostatectomy will be performed as standard of care at MSKCC. 68Ga-RM2 (RM2) PET/CT Scan
19
Total19

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyWithdrawal by Subject3

Baseline characteristics

CharacteristicPET/CT Imaging With 68Ga-RM2
Age, Continuous60 years
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
18 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
2 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants
Race (NIH/OMB)
White
15 Participants
Region of Enrollment
United States
19 Participants
Sex: Female, Male
Female
0 Participants
Sex: Female, Male
Male
19 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 19
other
Total, other adverse events
6 / 19
serious
Total, serious adverse events
0 / 19

Outcome results

Primary

Localizing Tumors

Localization will be defined using a total of 12 regions within the prostate: right and left base, midgland and apex in both peripheral and transition zones. The uptake on each region will be assessed by a radiologist blinded to standard of care imaging and clinical characteristics. Histopathological confirmation will be used as the gold standard.

Time frame: within two weeks prior to the planned prostatectomy

ArmMeasureGroupValue (NUMBER)
PET/CT Imaging With 68Ga-RM2Localizing TumorsContaining cancer128 Areas of the body
PET/CT Imaging With 68Ga-RM2Localizing TumorsNot containing cancer64 Areas of the body

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