Neoadjuvant Letrozole in Treating Postmenopausal Women With Estrogen-Receptor Positive and/or Progesterone-Receptor Positive Stage II, Stage IIIA, or Stage IIIB Breast Cancer
A Phase 2 Trial Of 4 Months Preoperative Letrozole 2.5 mg Daily For Postmenopausal Women With Estrogen Receptor Positive And/Or Progesterone Receptor Positive T2, T3, T4a-c, N0-2, M0 Breast Cancer- Novel Biomarkers for Aromatase Inhibitor Therapy
Sponsor: National Cancer Institute (NCI)
This PHASE2 trial investigates Breast Cancer and is currently completed. National Cancer Institute (NCI) leads this study, which shows 7 recorded versions since 2003 — indicating limited longitudinal coverage. As an oncology study, it adds to the longitudinal record of treatment development for this indication.
Status Flow
Change History
7 versions recorded-
Sep 2025 — Present [monthly]
Completed PHASE2
-
Sep 2024 — Sep 2025 [monthly]
Completed PHASE2
-
Jul 2024 — Sep 2024 [monthly]
Completed PHASE2
-
Jan 2021 — Jul 2024 [monthly]
Completed PHASE2
-
Jun 2018 — Jan 2021 [monthly]
Completed PHASE2
▶ Show 2 earlier versions
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Feb 2017 — Jun 2018 [monthly]
Completed PHASE2
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Jan 2017 — Feb 2017 [monthly]
Completed PHASE2
First recorded
Oct 2003
Trial started
Per CT.gov start date — pre-dates our first snapshot
Eligibility Summary
No eligibility information available.
Contact Information
- National Cancer Institute (NCI)
- Washington University School of Medicine
For direct contact, visit the study record on ClinicalTrials.gov .