Clinical Trials Browser

Phase 1 × OTHER × Letrozole × Clear all

NCT06813118 2026-05-07

Comparison of Clomid and Lezra With Lezra for Ovulation Induction in Clomid Resistant PCOS Case

Phase 1 Completed

Polycystic Ovary Syndrome

NCT04895761 2026-04-13

Neoadjuvant DPX-Survivac Aromatase Inhibition, Radiotherapy or Cyclophosphamide in HR+HER2- Breast Cancer

Phase 1 Active not recruiting

Breast Neoplasms

NCT06218303 2026-03-12

Prototype DAA/TAA Vaccine Targeting MUC1 for Immune Interception and Prevention in Ductal Carcinoma In Situ

Phase 1 Recruiting

Carcinoma, Intraductal, Noninfiltrating

NCT06139107 2025-11-14

RADIANT: Pre-op Radiation With Abemaciclib and Letrozole

Phase 1 Recruiting

Breast Neoplasms

NCT03959891 2025-09-29

AKT Inhibitor, Ipatasertib, With Endocrine and CDK 4/6 Inhibitor for Patients With Metastatic Breast Cancer (TAKTIC)

Phase 1 Active not recruiting

Breast Neoplasms

NCT03554044 2025-05-21

T-VEC With Chemotherapy or Endocrine Therapy in Treating Participants With HER2- Negative Breast Cancer

Phase 1 Completed

Breast Neoplasms

NCT01870505 2024-12-09

BYL719 Plus Letrozole or Exemestane for Patients With Hormone-Receptor Positive Locally-Advanced Unresectable or Metastatic Breast Cancer

Phase 1 Completed

52 enrolled 19 charts

Neoplasm Metastasis

NCT03900884 2024-11-07

PALVEN

Phase 1 Active not recruiting

Breast Neoplasm Female

NCT01791478 2024-07-23

BYL719 and Letrozole in Post-Menopausal Patients With Hormone Receptor-Positive Metastatic Breast Cancer

Phase 1 Active not recruiting

Breast Neoplasms, Carcinoma, Ductal, Breast

NCT04177693 2023-06-05

Pharmacokinetics and Hepatic Safety of EGCG

Phase 1 Completed

39 enrolled 18 charts

Leiomyoma

NCT04872608 2023-04-28

A Study of Letrozole, Palbociclib, and Onapristone ER in People With Metastatic Breast Cancer

Phase 1 Withdrawn

Breast Neoplasms

NCT04316169 2022-12-23

Hydroxychloroquine, Abemaciclib and Endocrine Therapy in Hormone Receptor Positive (HR+)/Her 2 Negative Breast Cancer

Phase 1 Withdrawn

BreastOther solid neoplasm

Solid Tumor

NCT03128619 2022-09-26

Copanlisib, Letrozole, and Palbociclib in Treating Patients With Hormone Receptor Positive HER2 Negative Stage I-IV Breast Cancer

Phase 1 Terminated

Breast Neoplasms

NCT02152943 2020-12-19

Everolimus, Letrozole and Trastuzumab in HR- and HER2/Neu-positive Patients

Phase 1 Completed

Breast Neoplasms

NCT02619669 2020-03-12

Neoadjuvant Run-In Study With TAK-228 Followed by Letrozole/TAK-228 in Women With High-Risk ER+/HER2- Breast Cancer

Phase 1 Withdrawn

Breast Neoplasms

NCT02619162 2019-07-23

Nintedanib+Letrozole in Postmenopausal Women With Breast Cancer: Clinical Trial Safety and Pharmacodynamics

Phase 1 Completed

Breast Neoplasms

NCT01248494 2016-07-25

PhIb BKM120 or BEZ235+Endocrine Treatment in Post-Menopausal Patients With Hormone Receptor + Metastatic Breast Cancer

Phase 1 Completed

Breast Neoplasms

NCT00516542 2012-07-24

Dehydroepiandrosterone (DHEA) and Letrozole in Treating Patients With Metastatic Breast Cancer

Phase 1 Terminated

Breast Neoplasms, Breast Neoplasms, Male

NCT00945360 2012-07-13

Aromatase Inhibitors for Treatment of Uterine Leiomyomas

Phase 1 Withdrawn

Leiomyoma