Clinical Trials Browser

Recruiting × Interventional × Letrozole × Clear all

NCT03122197 2026-04-16

Study of Letrozole in Recurrent Gliomas

Phase EARLY_PHASE1 Recruiting

Brain Neoplasms

NCT04606446 2026-04-16

KAT6

Phase 2 Recruiting

Carcinoma, Non-Small-Cell Lung

NCT06179303 2026-04-16

Functional Imaging in Prediction of Response to Abemaciclib for Advanced Hormone Receptor-Positive, HER2-Negative Breast Cancer

Phase 2 Recruiting

Anatomic Stage III Breast Cancer AJCC v8

NCT07085767 2026-04-16

OPERA-02

Phase 3 Recruiting

Breast Neoplasms

NCT04852887 2026-04-15

DEBRA

Phase 3 Recruiting

Breast Neoplasms

NCT06120283 2026-04-15

BGB-43395 Alone or as Part of Combination Therapies in Participants With Breast Cancer and Other Advanced Solid Tumors

Phase 1 Recruiting

Breast Neoplasms, Carcinoma, Non-Small-Cell Lung

NCT05827081 2026-04-14

Adjuvant WIDER

Phase 3 Recruiting

Breast Neoplasms, Breast Neoplasms, Male

NCT06380751 2026-04-14

EvoPAR-BR01

Phase 3 Recruiting

Advanced Breast Cancer

NCT05774951 2026-04-13

CAMBRIA-1

Phase 3 Recruiting

Breast Neoplasms

NCT06979596 2026-04-13

OMAHA-015

Phase 2 Recruiting

Neoplasms

NCT04886531 2026-04-08

Trial of Pre-operative Neratinib and Endocrine Therapy With Trastuzumab in ER-Positive, HER-2 Positive Breast Cancers

Phase 2 Recruiting

Breast Neoplasms

NCT05467891 2026-04-08

RaPhLRR

Phase 2 Recruiting

Locoregional Recurrence

NCT05286437 2026-04-06

LaPemERLA

Phase 2 Recruiting

Hormone Receptor-Positive HER2-Negative Advanced Breast Cancer

NCT06790693 2026-04-03

INAVO123

Phase 3 Recruiting

Breast Neoplasms

NCT06998407 2026-04-03

AVZO-023-1001

Phase 1/2 Recruiting

HR+/HER2- Breast Cancer

NCT07389733 2026-04-03

A Study of HRS-6208 in Combination With HRS-8080, or Fulvestrant, or Letrozole, With or Without HRS-6209 in Patients With Advanced Unresectable or Metastatic Breast Cancer

Phase 1/2 Recruiting

Advanced Unresectable or Metastatic Breast Cancer of Adults

NCT06072781 2026-04-02

RAMP 301

Phase 3 Recruiting

Low Grade Serous Ovarian Cancer

NCT07492394 2026-04-02

Dalpiciclib With or Without Entinostat and Letrozole in HR+/HER2- Early Breast Cancer

Phase 2 Recruiting

Breast Neoplasms

NCT04486352 2026-04-01

EndoMAP

Phase 1/2 Recruiting

Endometrial Neoplasms

NCT07054190 2026-03-31

A Study to Test Inavolisib Treatments in Participants With Early-Stage, PIK3CA-Mutated Breast Cancer

Phase 2 Recruiting

Breast Neoplasms

NCT06492616 2026-03-27

ELEGANT

Phase 3 Recruiting

Breast Neoplasms, Breast Neoplasms, Male

NCT07174336 2026-03-20

A Study of Tersolisib (LY4064809/STX-478) With Other Anti-Cancer Treatments in Participants With Advanced Breast Cancer With a Genetic Change (PIK3CA)

Phase 3 Recruiting

Breast Neoplasms, Neoplasm Metastasis

NCT07349069 2026-03-19

A Phase III Trial Comparing HRS-8080 With Standard Endocrine Therapy in Patients With High-Risk Early Breast Cancer

Phase 3 Recruiting

Breast Neoplasms

NCT03424005 2026-03-16

Morpheus-panBC

Phase 1/2 Recruiting

Breast Neoplasms

NCT06075953 2026-03-16

DCIS: RECAST Trial Ductal Carcinoma In Situ: Re-Evaluating Conditions for Active Surveillance Suitability as Treatment

Phase 2 Recruiting

Carcinoma, Intraductal, Noninfiltrating

NCT01042379 2026-03-13

I-SPY

Phase 2 Recruiting

Pathologic Complete Response, Breast Neoplasms, Hemangiosarcoma, Neoplasms, Triple Negative Breast Neoplasms

NCT06016738 2026-03-13

OPERA-01

Phase 3 Recruiting

Breast Neoplasms

NCT07319429 2026-03-13

FEMUS

Phase 2/3 Recruiting

Endometrial 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

NCT05768139 2026-03-02

PIKALO-1

Phase 1/2 Recruiting

BreastGynecologicHead & Neck

Squamous Cell Carcinoma of Head and Neck, Breast Diseases, Breast Neoplasms, Uterine Cervical Neoplasms, Head and Neck Neoplasms, Neoplasms, Neoplasms by Site, Hereditary Sensory and Autonomic Neuropathies, Ovarian Neoplasms, Endometrial Neoplasms

NCT06760637 2026-03-02

FourLight-3

Phase 3 Recruiting

Unilateral Breast Neoplasms, Breast Neoplasms, Recurrence

NCT06507618 2026-02-24

POWER II

Phase 3 Recruiting

Breast Neoplasms

NCT07288359 2026-02-23

Study of GVV858 as a Single Agent or in Combination With Endocrine Therapy in Patients With HR+/HER2- Breast Cancer and Other Advanced Solid Tumors

Phase 1/2 Recruiting

BreastGenitourinary

Breast Neoplasms, Prostatic Neoplasms

NCT03624244 2026-02-17

BFR-ESS

Phase 2 Recruiting

Endometrial Stromal Tumors

NCT06348134 2026-02-17

Assessing the Efficacy and Safety of Anti-HER2 Therapy in Nigerian Women With HER2+ Breast Cancer Before and After Surgery

Phase 2 Recruiting

Breast Neoplasms

NCT06366347 2026-02-11

ALPINE: Maintenance Letrozole/Abemaciclib

Phase 2 Recruiting

Endometrial Neoplasms

NCT06143631 2026-02-03

PLUM

Phase 4 Recruiting

Leiomyoma

NCT06394804 2026-02-03

CHAMELEON

Phase 2 Recruiting

Low-Grade Serous Ovarian Cancer

NCT05183828 2026-01-26

Effect of HSD3B1 (1245C) Gene Mutation on Treatment of Stage I-III Breast Cancer

Phase 4 Recruiting

Carcinoma, Ductal

NCT07024173 2026-01-26

A Phase 3 Study of HRS-8080 Versus Treatment Chosen by Physicians in Locally Advanced and Metastatic Breast Cancer

Phase 3 Recruiting

Breast Neoplasms

NCT07019363 2026-01-21

CDK4/6 Inhibitors Combined With Standard Adjuvant Endocrine Therapy in High-Risk, HR+/HER2+ Early Breast Cancer Patients(CHESS)

Phase 3 Recruiting

Breast Neoplasms

NCT06974929 2025-12-30

A Clinical Study of HRS-6209 Combined With Other Treatment Regimens in Patients With Breast Cancer

Phase 1/2 Recruiting

Breast Neoplasms

NCT05035836 2025-12-22

A Phase 2 Single-Arm Open-Label Pilot Trial Evaluating Zanidatamab (ZW25) in Patients With Early Stage HER2/Neu Positive (HER2+) Breast Cancer (BC)

Phase 2 Recruiting

Breast Neoplasms

NCT07285382 2025-12-16

Different Doses of Dalpicicl Combined With Letrozole in the First-line Treatment of HR-positive, HER2-negative Advanced Breast Cancer

Phase 2 Recruiting

HR Positive HER2 Negative Advanced Breast Cancer

NCT04563507 2025-12-15

Combined Immunotherapies in Metastatic ER+ Breast Cancer

Phase 2 Recruiting

Breast Neoplasms

NCT05867251 2025-11-19

Study of AVZO-021 in Patients With Advanced Solid Tumors

Phase 1/2 Recruiting

BreastGynecologic

Carcinoma, Ovarian Epithelial, Breast Neoplasms, Fallopian Tube Neoplasms, Endometrial Neoplasms, Triple Negative Breast Neoplasms

NCT06139107 2025-11-14

RADIANT: Pre-op Radiation With Abemaciclib and Letrozole

Phase 1 Recruiting

Breast Neoplasms

NCT04111978 2025-09-29

MATAO

Phase 3 Recruiting

Fallopian Tube Neoplasms, Peritoneal Neoplasms

NCT06041204 2025-09-03

Best Treatment for Women With Both (Polycystic Ovary Syndrome) PCOS and Subclinical Hypothyroidism

Phase NA Recruiting

Infertility, Female, Polycystic Ovary Syndrome

NCT05900206 2025-09-02

ARIADNE

Phase 2 Recruiting

Breast Neoplasms