Clinical Trials Browser

Phase 3 × Active not recruiting × Letrozole × Clear all

NCT00310180 2026-03-18

TAILORx

Phase 3 Active not recruiting

10,273 enrolled 14 charts

Breast Neoplasms

NCT01272037 2026-03-18

Tamoxifen Citrate, Letrozole, Anastrozole, or Exemestane With or Without Chemotherapy in Treating Patients With Invasive RxPONDER Breast Cancer

Phase 3 Active not recruiting

5,018 enrolled 14 charts

Carcinoma, Intraductal, Noninfiltrating

NCT04546009 2026-02-20

A Study Evaluating the Efficacy and Safety of Giredestrant Combined With Palbociclib Compared With Letrozole Combined With Palbociclib in Participants With Estrogen Receptor-Positive, HER2-Negative Locally Advanced or Metastatic Breast Cancer (persevERA Breast Cancer)

Phase 3 Active not recruiting

Breast Neoplasms

NCT01674140 2026-02-10

e3

Phase 3 Active not recruiting

1,939 enrolled 15 charts

Breast Neoplasms, Breast Neoplasms, Male

NCT05909397 2026-02-10

VERITAC-3

Phase 3 Active not recruiting

Breast Neoplasms

NCT02763566 2026-02-05

MONARCH plus

Phase 3 Active not recruiting

463 enrolled 20 charts

Breast Neoplasms

NCT02246621 2026-02-03

MONARCH 3

Phase 3 Active not recruiting

493 enrolled 23 charts 1 FDA

Breast Neoplasms

NCT05514054 2026-01-29

EMBER-4

Phase 3 Active not recruiting

Breast Neoplasms

NCT04964934 2026-01-16

SERENA-6

Phase 3 Active not recruiting

Breast Diseases, Breast Neoplasms, Neoplasm Metastasis, Neoplasms, Neoplasms by Site

NCT04095364 2026-01-14

Letrozole With or Without Paclitaxel and Carboplatin in Treating Patients With Stage II-IV Ovarian, Fallopian Tube, or Primary Peritoneal Cancer

Phase 3 Active not recruiting

Fallopian Tube Neoplasms, Ovarian Neoplasms

NCT04584853 2026-01-14

POETIC-A

Phase 3 Active not recruiting

Breast Cancer Female

NCT04906395 2026-01-13

OVELIA

Phase 3 Active not recruiting

Breast Neoplasms, Neoplasms

NCT04158362 2025-09-22

AMBRE

Phase 3 Active not recruiting

Breast Neoplasms, Neoplasm Metastasis

NCT05257395 2025-07-17

A Study of XZP-3287 in Combination With Letrozole/Anastrozole in Patients With Advanced Breast Cancer

Phase 3 Active not recruiting

Breast Neoplasms

NCT05207709 2025-04-29

HARMONIA

Phase 3 Active not recruiting

Breast Neoplasms

NCT02344472 2024-06-04

Detect V / CHEVENDO (Chemo vs. Endo)

Phase 3 Active not recruiting

Breast Neoplasms

NCT01064635 2024-05-08

GIM4

Phase 3 Active not recruiting

Breast Neoplasms

NCT02918084 2024-05-08

GIM10-CONSENT

Phase 3 Active not recruiting

Breast Neoplasms

NCT00382070 2024-03-22

Letrozole in Treating Postmenopausal Women Who Have Received Hormone Therapy for Hormone Receptor-Positive Breast Cancer

Phase 3 Active not recruiting

3,966 enrolled 12 charts

Breast Neoplasms

NCT02338310 2020-02-17

POETIC

Phase 3 Active not recruiting

Breast Neoplasms