Status:

RECRUITING

A Study of Changes in Ki67 Expression in People With Breast Cancer Receiving Endocrine Therapy Before Surgery

Lead Sponsor:

Memorial Sloan Kettering Cancer Center

Conditions:

Breast Cancer

Eligibility:

FEMALE

18+ years

Phase:

NA

Brief Summary

The researchers are doing this study to look at changes in Ki67 expression after at least 2 weeks of endocrine therapy in people with ER+/HER2- breast cancer undergoing cancer removal surgery. Partici...

Eligibility Criteria

Inclusion

  • Postmenopausal women aged ≥18 years with biopsy-proven stage I-III invasive breast cancer that is ER+/HER2-
  • Scheduled to undergo upfront surgery
  • Eligible for genetic testing in accordance with National Comprehensive Cancer Network guidelines(BRCA2 arm only)

Exclusion

  • History of breast cancer
  • Receipt of ET for risk reduction in the previous 3 months
  • Stage IV disease at presentation
  • Scheduled to undergo neoadjuvant systemic chemotherapy
  • Pregnant

Key Trial Info

Start Date :

November 6 2023

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

November 1 2028

Estimated Enrollment :

42 Patients enrolled

Trial Details

Trial ID

NCT06127979

Start Date

November 6 2023

End Date

November 1 2028

Last Update

September 23 2025

Active Locations (1)

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Memorial Sloan Kettering Cancer Center (All Protocol Activities)

New York, New York, United States, 10065