Clinical trial Recruiting at 1 site Early Phase 1 Interventional Ages 18 and up Women only

Imaging for newly diagnosed breast cancer using a novel device

Official title: Pilot Study Evaluating the Uptake of [18F]Fluoroestradiol (FES) BPET/DBT in Primary Breast Cancer to Measure the Localized Extent of Estrogen Receptor Positive Disease

Run by Abramson Cancer Center at Penn Medicine · NCT05659797 · Data updated 2026-11-12

This study is testing a new imaging method for people with newly diagnosed estrogen-receptor positive breast cancer to see if it provides better information about their disease compared to standard imaging techniques.

Quick facts

PhaseEarly Phase 1
Study typeInterventional
Ages18 Years and up
SexWomen only
Enrollment20 (estimated)
SponsorAbramson Cancer Center at Penn Medicine
Academic / other
Locations1 site (Philadelphia, Pennsylvania)
StatusRecruiting
StartedOctober 2, 2023
Main results expectedJanuary 2028
Study endsJanuary 2028
Registry record updatedFebruary 27, 2026
Trial IDNCT05659797 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 and older with newly diagnosed ER-positive breast cancer and at least one breast lesion measuring 1.0 cm or greater.

Probably not a fit

Patients who are pregnant, breastfeeding, or currently taking tamoxifen or raloxifene may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study evaluates the effectiveness of a new imaging technique that combines Breast Positron Emission Tomography (BPET) and Digital Breast Tomosynthesis (DBT) in patients with newly diagnosed estrogen-receptor positive breast cancer. Participants will receive an injection of 18F-Fluoroestradiol (FES) and undergo imaging to assess the extent of their disease. The study aims to compare the imaging results with standard imaging modalities and evaluate the correlation between FES uptake and estrogen receptor expression. This is an observational study, meaning that the imaging results will not influence treatment decisions.

Why it matters

Potential benefit: If successful, this study could provide a more accurate assessment of breast cancer extent, potentially leading to better treatment planning.

How similar studies have gone: While this approach is novel, similar imaging techniques have shown promise in other studies, indicating potential for success.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Participants will be ≥ 18 years of age.
2. Known ER positive (by immunohistochemistry) breast cancer.
3. At least one lesion ≥ 1.0 cm that is seen on standard imaging (e.g. mammogram, ultrasound, MRI, CT, FDG-PET/CT). Only one type of imaging is required to show a lesion.
4. Participants must be informed of the investigational nature of this study and be willing to provide written informed consent and participate in this study in accordance with institutional and federal guidelines prior to study-specific procedures.

Exclusion Criteria:

1. Females who are pregnant or breast feeding will not be eligible for this study; a urine pregnancy test will be performed in women of child-bearing potential prior to PET imaging..
2. Inability to tolerate imaging procedures in the opinion of an investigator or treating physician.
3. Currently taking tamoxifen or raloxifene
4. Any current medical condition, illness, or disorder as assessed by medical record review and/or self-reported that is considered by a physician investigator to be a condition that could compromise participant safety or successful participation in the study.

Where it's running

  • University of Pennsylvania
    Philadelphia, Pennsylvania, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.