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Evaluation of PSMA in HER2- AR+ Metastatic Breast Cancer

NCT04573231 · Status: RECRUITING · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 13

Last updated 2026-02-05

No results posted yet for this study

Summary

The purpose of this research is to determine the expression of prostate specific membrane antigen (PSMA) in human epidermal growth factor receptor 2 (HER2)-negative, androgen receptor (AR)-positive metastatic breast cancer, and to determine its role in resistance to the anti-androgen, bicalutamide. The investigators hypothesize that PSMA expression will correlate with resistance to anti-androgen therapies, as has been documented in prostate cancer, and this can be used to select patients most likely to benefit from these therapies in future clinical trials. 15 people with HER2-negative, AR-positive metastatic breast cancer will be enrolled and be on study for about 3 days.

Conditions

Interventions

DRUG

18F-DCFPyL

PSMA is highly expressed on prostate cancer and is associated with metastasis and resistance to anti-androgen therapies. Researchers have evaluated the expression of PSMA in the tumor and tumor-associated neovasculature in primary tumors and distant metastases in patients with breast cancer.

Sponsors & Collaborators

  • University of Wisconsin, Madison

    lead OTHER

Principal Investigators

  • Amy Fowler, MD, PhD · University of Wisconsin, Madison

Study Design

Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2021-05-24
Primary Completion
2026-06-30
Completion
2026-06-30
FDA Drug
Yes

Countries

  • United States

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04573231 on ClinicalTrials.gov