Clinical Trials Browser

Phase 2 × Fulvestrant × Breast × Clear all

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

NCT04920708 2026-04-14

FAIM

Phase 2 Active not recruiting

Breast Neoplasms

NCT02630693 2026-04-13

Two Different Schedules of Palbociclib + Second Line Endocrine Therapy in Estrogen Receptor Positive, HER2 Neg Advanced/Metastatic Breast Cancer

Phase 2 Completed

180 enrolled 14 charts

Breast Neoplasms

NCT04553133 2026-04-13

PF-07104091 as a Single Agent and in Combination Therapy

Phase 2 Active not recruiting

BreastGynecologicThoracic

Breast Neoplasms, Ovarian Neoplasms, Small Cell Lung Carcinoma

NCT07368998 2026-04-13

optINAVO

Phase 2 Recruiting

Breast Neoplasms

NCT04524000 2026-04-08

Study Assessing the Efficacy and Safety of Treatment With Alpelisib Plus Fulvestrant in Japanese Men and Postmenopausal Women With Advanced Breast Cancer

Phase 2 Active not recruiting

Advanced Breast Cancer

NCT04796623 2026-04-08

A Study of TQB3616 Capsules Combined With Fulvestrant Injection in Subjects With Advanced Breast Cancer

Phase 2 Completed

HR-positive, HER2-negative Advanced Breast Cancer

NCT05467891 2026-04-08

RaPhLRR

Phase 2 Recruiting

Locoregional Recurrence

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

NCT04544189 2026-04-02

Study Assessing the Efficacy and Safety of Treatment With Alpelisib Plus Fulvestrant Versus Placebo Plus Fulvestrant in Chinese Men and Postmenopausal Women With Advanced Breast Cancer

Phase 2 Active not 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

NCT04576455 2026-03-20

A Study Evaluating the Efficacy and Safety of Giredestrant Compared With Physician's Choice of Endocrine Monotherapy in Participants With Previously Treated Estrogen Receptor-Positive, HER2-Negative Locally Advanced or Metastatic Breast Cancer (acelERA Breast Cancer)

Phase 2 Active not recruiting

303 enrolled 23 charts

Breast Neoplasms

NCT05524584 2026-03-11

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

Phase 2 Recruiting

Breast Neoplasms

NCT01560416 2026-03-03

Fulvestrant With or Without Ganetespib in HR+ Breast Cancer

Phase 2 Completed

50 enrolled 14 charts

Breast Neoplasms, Neoplasm Metastasis

NCT05554354 2026-03-03

Testing the Use of Fulvestrant and Binimetinib Targeted Treatment for NF1 Mutation in Hormone Receptor-Positive Metastatic Breast Cancer (A ComboMATCH Treatment Trial)

Phase 2 Terminated

Anatomic Stage IV Breast Cancer AJCC v8

NCT02860000 2026-02-27

Alisertib With or Without Fulvestrant in Treating Patients With Locally Advanced or Metastatic, Endocrine-Resistant Breast Cancer

Phase 2 Completed

96 enrolled 34 charts

Breast Neoplasms

NCT02778685 2026-02-24

Pembrolizumab, Endocrine Therapy, and Palbociclib in Treating Postmenopausal Patients With Newly Diagnosed Metastatic Stage IV Estrogen Receptor Positive Breast Cancer

Phase 2 Active not recruiting

47 enrolled 17 charts

Breast Neoplasms

NCT03179904 2026-02-24

TVB-2640 and Trastuzumab With Paclitaxel or Endocrine Therapy for Treatment of HER2 Positive Metastatic Breast Cancer

Phase 2 Active not recruiting

17 enrolled 10 charts

Advanced Breast Carcinoma

NCT04059484 2026-02-24

AMEERA-3

Phase 2 Terminated

367 enrolled 30 charts

Breast Cancer Metastatic

NCT06105632 2026-02-13

A Study to Learn About the Study Medicine Called PF-07220060 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 2 Active not recruiting

Breast Neoplasms, Recurrence

NCT05101564 2026-02-12

Umbrella Trial of Subtype-Targeted Therapies in ER+/HER2- Breast Cancer

Phase 2 Completed

19 enrolled 10 charts

Breast Neoplasms

NCT03781063 2026-01-28

Evaluation of Lasofoxifene Versus Fulvestrant in Advanced or Metastatic ER+/HER2- Breast Cancer With an ESR1 Mutation

Phase 2 Completed

Breast Neoplasms

NCT05305924 2026-01-28

Fulvestrant+Abemaciclib With Run-In of Fulvestrant in Er-Positive, Her2-Negative Metastatic Breast Cancer

Phase 2 Recruiting

ER-Positive Breast Cancer

NCT03289039 2026-01-22

Neratinib +/- Fulvestrant in HER2+, ER+ Metastatic Breast Cancer

Phase 2 Terminated

21 enrolled 15 charts

Breast Neoplasms

NCT03056755 2026-01-13

BYLieve

Phase 2 Completed

383 enrolled 16 charts

Breast Neoplasms, Hereditary Sensory and Autonomic Neuropathies

NCT05826964 2026-01-13

Levels of Circulating Tumor DNA as a Predictive Marker for Early Switch in Treatment for Patients With Metastatic (Stage IV) Breast Cancer

Phase 2 Active not 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

NCT03393845 2026-01-02

Study of Pembrolizumab Plus Fulvestrant in Hormone Receptor Positive, HER-2 Negative Advanced/Metastatic Breast Cancer Patients

Phase 2 Active not recruiting

Breast Neoplasms

NCT04762979 2026-01-02

Alpelisib (BYL719) in Combination With Continued Endocrine Therapy Following Progression on Endocrine Therapy in Hormone Receptor Positive, HER2 Negative, PIK3CA Mutant Metastatic Breast Cancer

Phase 2 Active not recruiting

Hormone Receptor Positive Breast Carcinoma

NCT05963984 2025-12-26

SUMIT-BC

Phase 2 Completed

Breast Neoplasms

NCT06849947 2025-12-24

Fulvestrant With Ribociclib Versus Physician's Choice Treatments Recurred After Completion of Adjuvant Cyclin-Dependent Kinase 4/6 Inhibitors in HR+, HER2- Metastatic Breast Cancer

Phase 2 Not yet recruiting

Breast Cancer Metastatic

NCT02760030 2025-12-19

Endocrine Therapy Fulvestrant & Palbociclib or Aromatase Inhibitor Therapy in Treating Older Patients With Hormone Responsive Breast Cancer That Cannot Be Removed by Surgery

Phase 2 Completed

Breast Neoplasms

NCT04579380 2025-12-19

Basket Study of Tucatinib and Trastuzumab in Solid Tumors With HER2 Alterations

Phase 2 Active not recruiting

217 enrolled 19 charts

BreastGastrointestinalGenitourinaryGynecologicThoracic

Biliary Tract Neoplasms, Breast Neoplasms, Carcinoma, Non-Small-Cell Lung, Uterine Cervical Neoplasms, Urologic Neoplasms, Uterine Neoplasms, Colorectal Neoplasms

NCT04603183 2025-12-12

ABIGAIL

Phase 2 Completed

Breast Cancer Metastatic

NCT02738866 2025-12-10

Palbociclib With Fulvestrant for Metastatic Breast Cancer After Treatment With Palbociclib and an Aromatase Inhibitor

Phase 2 Active not 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

NCT05226871 2025-11-25

Study for Participants Continuing From Pfizer-sponsored Palbociclib (a Study Medicine) Studies

Phase 2 Active not recruiting

BreastHead & Neck

Squamous Cell Carcinoma of Head and Neck, Breast Neoplasms, Head and Neck Neoplasms

NCT07235618 2025-11-19

A Study of Entinostat in Combination With Fulvestrant for the Treatment of Locally Advanced or Metastatic Breast Cancer

Phase 2 Not yet recruiting

Breast Neoplasms

NCT07180160 2025-11-18

ITHRAN

Phase 2 Recruiting

Advanced Breast Cancer

NCT04024436 2025-11-13

A Study of TAS-120 in Patients With Metastatic Breast Cancer

Phase 2 Terminated

64 enrolled 21 charts

Breast Neoplasms

NCT03620643 2025-10-30

ROLo

Phase 2 Completed

33 enrolled 13 charts

BreastGastrointestinal

Stomach Neoplasms, Carcinoma, Lobular, Triple Negative Breast Neoplasms

NCT05090358 2025-10-27

Preventing High Blood Sugar in People Being Treated for Metastatic Breast Cancer

Phase 2 Active not recruiting

Breast Neoplasms

NCT04567420 2025-10-16

DARE

Phase 2 Recruiting

Breast Neoplasms

NCT04557449 2025-10-01

CDK4i

Phase 2 Active not recruiting

BreastGastrointestinalGenitourinarySarcomaThoracic

Adenocarcinoma of Lung, Breast Neoplasms, Liposarcoma, Prostatic Neoplasms, Colorectal Neoplasms

NCT03147287 2025-09-30

Palbociclib After CDK and Endocrine Therapy (PACE)

Phase 2 Active not recruiting

220 enrolled 11 charts

Breast Neoplasms

NCT07179939 2025-09-18

Maintenance Therapy in HER2-Positive Unresectable Locally Recurrent or Metastatic Breast Cancer: A Phase II Study

Phase 2 Not yet recruiting

HER2-positive Breast Cancer

NCT05392608 2025-09-17

SEQUEL-Breast

Phase 2 Active not recruiting

Breast Neoplasms, Genetic Diseases, Inborn