Clinical Trials Browser

Recruiting × Breast Neoplasms × Fulvestrant × Clear all

NCT06726148 2026-04-17

Study of ECI830 Single Agent or in Combination in Patients With Advanced HR+/HER2- Breast Cancer and Other Advanced Solid Tumors

Phase 1/2 Recruiting

Breast Neoplasms

NCT07174336 2026-04-17

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

NCT07062965 2026-04-16

A Study to Learn About the Study Medicine Called PF-07248144 in Combination With Fulvestrant in People With HR-positive, HER2-negative Advanced or Metastatic Breast Cancer Who Progressed After a Prior Line of Treatment.

Phase 3 Recruiting

Unilateral Breast Neoplasms, Breast Neoplasms, Recurrence

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

NCT05238922 2026-04-14

Study of INCB123667 in Subjects With Advanced Solid Tumors

Phase 1 Recruiting

BreastGastrointestinalGynecologic

Carcinoma, Ovarian Epithelial, Breast Neoplasms, Digestive System Neoplasms

NCT06625775 2026-04-13

Open-Label Study of BBO-10203 in Subjects With Advanced Solid Tumors

Phase 1 Recruiting

BreastGastrointestinalThoracic

Breast Neoplasms, Carcinoma, Non-Small-Cell Lung, Lung Neoplasms, Neoplasm Metastasis, Colorectal Neoplasms

NCT07368998 2026-04-13

optINAVO

Phase 2 Recruiting

Breast Neoplasms

NCT07408089 2026-04-13

KOMODO-1

Phase 1 Recruiting

Breast Neoplasms

NCT05696626 2026-04-07

ELAINEIII

Phase 3 Recruiting

Breast Neoplasms

NCT07405801 2026-04-06

A Phase II Study Evaluating the Efficacy and Safety of Inavolisib Plus Ribociclib Plus Fulvestrant Versus Placebo Plus Ribociclib Plus Fulvestrant in Participants With Advanced Breast Cancer

Phase 2 Recruiting

Breast Neoplasms

NCT06982521 2026-04-02

ReDiscover-2

Phase 3 Recruiting

Breast Neoplasms

NCT05735080 2026-04-01

INX-315-01

Phase 1/2 Recruiting

BreastGynecologic

Breast Neoplasms, Neoplasm Metastasis, Ovarian Neoplasms

NCT06954961 2026-03-31

A Study to Evaluate D-0502 in Subjects With ER+ Her2- Locally Advanced or Metastatic Breast Cancer

Phase 3 Recruiting

Breast Neoplasms

NCT06110793 2026-03-30

A Study of Lenvatinib, Pembrolizumab, and Fulvestrant in People With Breast Cancer

Phase 1/2 Recruiting

Breast Neoplasms

NCT05601440 2026-03-27

Liquid-biopsy Informed Platform Trial to Evaluate CDK4/6-inhibitor Resistant ER+/HER2- Metastatic Breast Cancer

Phase 2 Recruiting

Breast Neoplasms

NCT07498478 2026-03-27

Efficacy and Safety of Tinengotinib Tablets Combined With Fulvestrant Injection in Patients With HR Positive and HER-2 Negative Recurrent or Metastatic Breast Cancer Who Have Failed Prior Treatment

Phase 2 Recruiting

Breast Neoplasms

NCT06428396 2026-03-24

LITESPARK-029

Phase 2 Recruiting

Breast Neoplasms

NCT07109726 2026-03-23

A Phase 1/2 Trial of TER-2013 in Patients With Solid Tumors Harboring AKT/PI3K/PTEN Pathway Alterations

Phase 1/2 Recruiting

BreastGastrointestinalGynecologicHead & Neck

Squamous Cell Carcinoma of Head and Neck, Esophageal Squamous Cell Carcinoma, Breast Neoplasms, Uterine Cervical Neoplasms, Ovarian Neoplasms, Endometrial Neoplasms

NCT05573126 2026-03-20

Phase 1/2 Study to Evaluate EP0062 as Monotherapy and in Combination in Patients With Advanced or Metastatic AR+/HER-2-/ER+ Breast Cancer

Phase 1/2 Recruiting

Breast Neoplasms

NCT07347600 2026-03-20

reaINAVO

Breast Neoplasms

NCT06993844 2026-03-17

Phase 1/2 Study of ETX-636 in Participants With Advanced Solid Tumors

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

NCT03424005 2026-03-16

Morpheus-panBC

Phase 1/2 Recruiting

Breast Neoplasms

NCT06016738 2026-03-13

OPERA-01

Phase 3 Recruiting

Breast Neoplasms

NCT07287917 2026-03-12

Study of AMXT 1501 and DFMO in Combination With Standard Therapies in Advanced Solid Tumors

Phase 1/2 Recruiting

BreastDermatologic

Breast Neoplasms, Melanoma

NCT05524584 2026-03-11

Anastrazole, Fulvestrant & Abemaciclib for HR+HER2- Metastatic Breast Cancer

Phase 2 Recruiting

Breast Neoplasms

NCT06257264 2026-03-05

A Study to Examine the Safety of Different Doses of BG-68501 Given to Participants With Advanced-Stage Tumors

Phase 1 Recruiting

BreastGastrointestinalGenitourinaryGynecologicThoracic

Urinary Bladder Neoplasms, Breast Neoplasms, Ovarian Neoplasms, Prostatic Neoplasms, Stomach Neoplasms, Endometrial Neoplasms, Small Cell Lung Carcinoma, Triple Negative Breast Neoplasms

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

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

NCT06757634 2026-02-05

Phase 3 Study of Gedatolisib as First-Line Treatment for Patients With HR-Positive, HER2-Negative Advanced Breast Cancer (VIKTORIA-2)

Phase 3 Recruiting

Breast Neoplasms, Neoplasm Metastasis

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

NCT04115306 2026-01-21

Dauntless-1

Phase 1/2 Recruiting

Breast Neoplasms

NCT07330544 2026-01-09

A Phase II Clinical Study Evaluating Entinostat With or Without Anlotinib + Fulvestrant for the Treatment of Hormone Receptor (HR) -Positive, Human Epidermal Growth Factor Receptor-2 (HER-2) -Negative Advanced Breast Cancer That Relapsed or Progressed After Endocrine Therapy

Phase 2 Recruiting

Breast Neoplasms

NCT07318805 2026-01-06

A Study to Learn About the Study Medicine Called PF-08032562 in People With Advanced or Metastatic Solid Tumors

Phase 1 Recruiting

BreastGastrointestinal

Breast Neoplasms, Colonic Neoplasms, Colorectal Neoplasms, Triple Negative Breast Neoplasms

NCT07207070 2025-12-30

A Randomised, Open-label, Multicentre Phase III Clinical Study to Evaluate the Efficacy and Safety of JS105 Combined With Dalpiciclib and Fulvestrant Compared With Dalpiciclib and Fulvestrant in Patients With PIK3CA-mutated, HR-positive, HER2-negative Recurrent or Metastatic Breast Cancer.

Phase 3 Recruiting

Breast Neoplasms

NCT07117630 2025-12-05

An Open-Label, Bayesian Adaptive Phase II Clinical Study in HR+/HER2- Advanced Breast Cancer After Progression on Standard Therapy

Phase 2 Recruiting

Breast Neoplasms

NCT06409390 2025-12-04

Sequential Therapies Modeled on Evolutionary Dynamics for 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

NCT06756932 2025-11-10

BGB-21447 (Bcl-2 Inhibitor) Combinations for Adults With Hormone-Receptor Positive (HR+)/Human Epidermal Growth Factor Receptor 2 Negative (HER2-) Metastatic Breast Cancer

Phase 1 Recruiting

Breast Neoplasms

NCT05608252 2025-10-29

VS-6766+Abema+Fulv in Met HR+/HER- BC

Phase 1/2 Recruiting

Breast Neoplasms

NCT04567420 2025-10-16

DARE

Phase 2 Recruiting

Breast Neoplasms

NCT06784193 2025-10-10

Phase 1 Study of OP-3136 in Advanced or Metastatic Solid Tumors

Phase 1 Recruiting

Breast Neoplasms, Carcinoma, Non-Small-Cell Lung

NCT05216432 2025-09-22

First-in-Human Study of Mutant-selective PI3Kα Inhibitor, RLY-2608, as a Single Agent in Patients With Advanced Solid Tumors and in Combination With Endocrine Therapy +/- a CDK4/6 or CDK4 Inhibitor in Patients With Advanced Solid Tumors or Advanced Breast Cancer

Phase 1 Recruiting

Breast Neoplasms

NCT06680921 2025-09-22

A Study of SIM0270 Combined With Everolimus vs. Treatment of Physician's Choice in Patients With ER+/HER2- Advanced Breast Cancer (SIMRISE)

Phase 3 Recruiting

Breast Neoplasms

NCT06239467 2025-09-09

PIKture-01

Phase 1 Recruiting

Breast Neoplasms

NCT05870579 2025-08-21

[177Lu]Lu-NeoB in Combination With Ribociclib and Fulvestrant in Participants With ER+, HER2- and GRPR+ Advanced Breast Cancer

Phase 1 Recruiting

Breast Neoplasms

NCT02476786 2025-07-28

Endocrine Treatment Alone for Elderly Patients With Estrogen Receptor Positive Operable Breast Cancer and Low Recurrence Score

Phase 2 Recruiting

Breast Neoplasms

NCT05181033 2025-07-25

Lenvatinib+Letrozole Versus Fulvestrant in Metastatic ER+/HER2- Breast Cancer, Post Progression on Al + CDK4/6 Inhibitor

Phase 2 Recruiting

Breast Neoplasms

NCT06555068 2025-06-22

A Trial of HRS-6209 in Combination With Fulvestrant, Letrozole, HRS-8080, or HRS-1358 in Breast Cancer Patients

Phase 1/2 Recruiting

Breast Neoplasms

NCT06515470 2025-06-06

Safety, Tolerability, Pharmacokinetics, and Preliminary Efficacy of BTX-9341 in Advanced and/or Metastatic Breast Cancer

Phase 1 Recruiting

Breast Neoplasms

NCT06998108 2025-05-31

Study of BEBT-209 in Combination With Fulvestrant Versus Placebo in Combination With Fulvestrant in Patients With HR+/HER2- Locally Advanced or Metastatic Breast Cancer Who Have Progressed After Prior Endocrine Therapy

Phase 3 Recruiting

Breast Neoplasms