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Clinical trialNCT04272801Active, not recruitingPhase 2Interventional

Pre-Operative Window of Adjuvant Endocrine Therapy to Inform RT Decisions in Older Women With Early-Stage Breast Cancer

SponsorShayna Showalter, MDEnrollment84Breast Cancer Female
View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

This is a prospective multisite exploratory study for women ≥ 65 years of age with early stage estrogen receptor positive (ER+) breast cancer. These individuals will be treated with 3 months of pre-operative endocrine therapy (pre-ET) with assessment of tolerance to the endocrine therapy by patient reported outcome (PRO) measures (patient surveys).
clinicaltrials.gov ↗

Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

2 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States
  • University of Virginia

    Charlottesville, Virginia, United States

  • Virginia Commonwealth University Massey Cancer Center

    Richmond, Virginia, United States

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

The drug and biological interventions registered on this study, normalized to their RxNorm ingredient where possible.

Tamoxifen →
Linked drugs open the directory filtered to KOLs working with them.clinicaltrials.gov ↗

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start
7 Apr 2020
Primary completion
5 Jun 2024
Completion
1 Jun 2026
Last update posted
22 Oct 2025
Registered enrollment
84
Registry id
NCT04272801
clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 24 Aug 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.