findmyKOL
Clinical trialNCT05607004Active, not recruitingPhase 2Interventional

(Z)-Endoxifen for the Treatment of Premenopausal Women With ER+/HER2- Breast Cancer

SponsorAtossa Therapeutics, Inc.Enrollment87Breast NeoplasmsEstrogen-receptor-positive Breast CancerHER2-negative Breast CancerInvasive Breast Cancer
View the registry record on ClinicalTrials.gov

Summary

The registered summary isn't in our current data snapshot. Read it on the ClinicalTrials.gov record ↗. Why? →

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

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

United States
  • Mayo Clinic Arizona

    Phoenix, Arizona, United States

  • University of Arizona

    Tucson, Arizona, United States

  • California Research Institute

    Los Angeles, California, United States

  • Mayo Clinic Florida

    Jacksonville, Florida, United States

  • Northwestern University

    Chicago, Illinois, United States

  • St. Elizabeth Healthcare

    Edgewood, Kentucky, United States

  • Henry Ford Cancer Institute

    Detroit, Michigan, United States

  • Mayo Clinic Rochester

    Rochester, Minnesota, United States

  • Washington University School of Medicine

    St Louis, Missouri, United States

  • Avera Cancer Institute

    Sioux Falls, South Dakota, United States

  • Vanderbilt Ingram Cancer Center

    Nashville, Tennessee, United States

  • Baylor University

    Houston, Texas, United States

  • Bon Secours Cancer Institute

    Midlothian, Virginia, United States

  • Fred Hutchinson Cancer Center

    Seattle, Washington, United States

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

Drugs studied

No drug or biological interventions are in our data for this study — it may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →

Registration & key dates

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

Start
14 Feb 2023
Primary completion
30 Nov 2026
Completion
30 Apr 2027
Last update posted
8 Jul 2026
Registered enrollment
87
Registry id
NCT05607004

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 12 Jul 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.