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New scan could predict breast cancer treatment success in days

NCT ID NCT06086704

Recruiting now Diagnosis Sponsor: University of Wisconsin, Madison Source: ClinicalTrials.gov ↗

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 2 times

Summary

This study tests whether a special PET/MRI scan using a radioactive tracer (18F-FFNP) can detect early signs that hormone therapy is working in breast cancer. About 53 postmenopausal women with a certain type of breast cancer will get the scan before and after taking anastrozole for two weeks. The goal is to see if changes in the scan match changes in tumor activity, which could help doctors personalize treatment faster.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance
18F-fluorofuranylnorprogesterone (FFNP) and anastrozole
What this could lead to
If successful, this imaging method could help doctors quickly tell if hormone therapy is working for breast cancer, allowing them to adjust treatment sooner.
What could go wrong
This is a small, early-phase study (53 people) focused on imaging accuracy, not treatment outcomes. The scan may not reliably predict response in all patients.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

breast cancer breast neoplasm progesterone-receptor positive breast cancer

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

BREAST CANCER

Contacts and locations

Study contacts

  • Contact

    Email: •••••@•••••

Locations

  • UW Carbone Cancer Center

    RECRUITING

    Madison, Wisconsin, 53792, United States

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