Clinical trial Recruiting at 1 site Phase 2 Interventional Ages 70 and up Women only

Endocrine therapy for older women with operable breast cancer

Official title: Endocrine Treatment Alone as Primary Treatment for Elderly Patients With Estrogen Receptor Positive Operable Breast Cancer and Low Recurrence Score

Run by Washington University School of Medicine · NCT02476786 · Data updated 2026-11-12

This study is testing if hormone therapy alone can effectively treat older women with early-stage breast cancer, so they might not need extra treatments.

Quick facts

PhasePhase 2
Study typeInterventional
Ages70 Years and up
SexWomen only
Enrollment50 (estimated)
SponsorWashington University School of Medicine
Academic / other
Locations1 site (St Louis, Missouri)
StatusRecruiting
StartedJanuary 17, 2017
Main results expectedJanuary 31, 2027
Study endsJuly 31, 2032
Registry record updatedJuly 27, 2026
Trial IDNCT02476786 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are women aged 70 or older with newly diagnosed operable ER+ breast cancer and low Ki67 scores.

Probably not a fit

Patients with a history of other malignancies or those who have undergone prior surgery for breast cancer 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 clinical trial investigates the effectiveness of endocrine therapy alone in elderly women aged 70 and older who have estrogen receptor positive (ER+) operable breast cancer with low recurrence scores. The study aims to determine if this treatment approach can provide adequate local and systemic control of breast cancer without the need for additional interventions. Participants will receive treatments such as Goserelin, Anastrozole, Exemestane, and Fulvestrant, with the goal of establishing a new standard of care for this patient population.

Why it matters

Potential benefit: If successful, this approach could allow elderly patients to manage their breast cancer effectively without undergoing more invasive treatments.

How similar studies have gone: Previous studies have shown promise in using neoadjuvant endocrine therapy for similar patient populations, suggesting potential success for this approach.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Newly diagnosed histologically or cytologically confirmed operable invasive breast cancer defined as cT1 or T2, N0-1, and M0.
* Disease must be ER+ and HER2-.
* Ki67 score/proliferative index ≤ 30% or low to intermediate mitotic index
* Measurable disease defined as lesions that can be accurately measured in at least one dimension (longest diameter to be recorded) by ultrasound or mammogram.
* 70 years of age or older.
* ECOG performance status ≤ 3
* Able to understand and willing to sign an IRB approved written informed consent document (or that of legally authorized representative, if applicable).

Exclusion Criteria:

* Prior surgery for this cancer
* A history of other malignancy ≤ 5 years previous which would preclude endocrine treatment of their cancer.
* Currently receiving any other investigational agents.
* A history of allergic reactions attributed to compounds of similar chemical or biologic composition to any of the agents used in the study.
* Uncontrolled intercurrent illness as determined by their treating physician which would limit compliance with study requirements.
* Known HIV-positivity on combination antiretroviral therapy because of the potential for pharmacokinetic interactions with endocrine therapies. Appropriate studies will be undertaken in patients receiving combination antiretroviral therapy when indicated.

Where it's running

  • Washington University School of Medicine
    St Louis, Missouri, United States
    Recruiting

Study contacts

  • Principal investigator: Rebecca L Aft, M.D, Ph.D. — Washington University School of Medicine
  • Study coordinator: Rebecca L Aft, M.D., Ph.D.
  • Email: aftr@wustl.edu
  • Phone: 314-747-0063

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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.