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A Study of 68Gallium PSMA-PET/CT Scans in People With Bladder Cancer or Skin Cancer

Pilot Study of 68Gallium PSMA-PET/CT in Patients With Metastatic Urothelial Carcinoma or Melanoma

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05562791
Enrollment
20
Registered
2022-10-03
Start date
2022-09-28
Completion date
2027-09-01
Last updated
2026-04-22

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

Conditions

Bladder Cancer

Keywords

Metastatic, Urothelial carcinoma, 68Gallium, PSMA-PET/CT, 22-157

Brief summary

The purpose of this study is to see whether 68Gallium PSMA-PET/CT scans are an effective way to detect sites of cancer in people with metastatic bladder cancer or skin cancer. The study researchers want to learn if a 68Gallium PSMA PET/CT scan will work better, the same, or not as well as the PET/CT scans doctors usually use for imaging bladder cancer or skin cancer (FDG-PET/CT scan).

Interventions

68Gallium PSMA-PET/CT imaging within 10 days after standard of care FDG-PET/CT.

DIAGNOSTIC_TESTPET/CT imaging

68Gallium PSMA-PET/CT imaging within 10 days after standard of care FDG-PET/CT.

Sponsors

Memorial Sloan Kettering Cancer Center
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Intervention model description

This is a prospective, single-arm pilot study of 68Gallium PSMA-PET/CT imaging in patients with metastatic urothelial carcinoma or Melanoma.

Eligibility

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

Inclusion criteria

for Urothelial Carcinoma Cohort: * Patients with histologically confirmed metastatic urothelial carcinoma with extrapelvic nodal and/or visceral sites of disease (including lung, liver, bone, or soft tissue) * At least 1 lesion assessable by FDG PET/CT according to RECIST and PERCIST guidelines where applicable, that are determined suspicious for metastasis by an MSKCC attending radiologist or nuclear medicine physician. * Karnofsky performance status ≥50% (or ECOG/WHO ≤2) * Participant is ≥18 years of age * Patient must be able to understand and is willing to sign a written informed consent document Inclusion Criteria for Melanoma Cohort: * Patients with histologically confirmed metastatic melanoma * At least 1 metastatic lesion assessable by CT or FDG PET/CT according to RECIST that is determined to be suspicious for metastasis by an MSKCC attending radiologist or nuclear medicine physician * ECOG \<= 2 * Participant is \>= 18 years of age * Patient must be able to understand and is willing to sign a written informed consent document

Exclusion criteria

for Urothelial Carcinoma Cohort: * Patients with pelvic node-only metastatic disease. If the patient has lymph node only disease, at least one PET-assessable node must be located outside of the pelvis * Patients with bone only disease * Unable to lie flat, still, or to tolerate a PET scan * Patient undergoing active treatment for non-urothelial malignancy, other than skin basal cell or cutaneous superficial squamous cell carcinoma that has not metastasized. * Patients on a therapeutic clinical trial where PSMA imaging would interfere with the conduct of the trial * Patients undergoing active surveillance with a known history of non-urothelial malignancies * Women who are pregnant. All women of childbearing potential must have a documented negative pregnancy test.

Design outcomes

Primary

MeasureTime frameDescription
Define the proportion of patients with 1 or more lesions detectable by 68Gallium PSMA-PET/CT for Urothelial Carcinoma1 yearIf 6 of 10 patients have at least one lesion identified both on standard of care FDG PET/CT and also detected on 68Gallium PSMA-PET/CT, this imaging modality will be worthy of further exploration in metastatic UC.
Define the proportion of patients with 1 or more lesions detectable by 68Gallium PSMA-PET/CT for Melanoma1 yearIf 6 of 10 patients have at least one lesion identified both on standard of care FDG PET/CT and also detected on 68Gallium PSMA-PET/CT, this imaging modality will be worthy of further exploration in metastatic Melanoma.

Countries

United States

Contacts

CONTACTGopakumar Iyer, MD
iyerg@mskcc.org646-888-4737
CONTACTAlexander Shoushtari, MD
646-888-4161
PRINCIPAL_INVESTIGATORGopakumar Iyer

Memorial Sloan Kettering Cancer Center

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 23, 2026