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ClinicalTrials.gov public records Last synced Oct 6, 2026, 9:42 AM EDT

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Showing 97–120 of 228 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: ER-Positive HER2-Negative Breast Cancer Clear all
Completed Phase 3 Interventional Results available

Study of Efficacy and Safety of LEE011 in Postmenopausal Women With Advanced Breast Cancer

NCT01958021
View directory record Official record
Conditions
Advanced, Metastatic Breast Cancer
Interventions
Ribociclib, Letrozole, Placebo
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 100 Years · Female only
Enrollment
668 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2023
U.S. locations
73
States / cities
Chandler, Arizona • Sedona, Arizona • Fayetteville, Arkansas + 62 more
Source: ClinicalTrials.gov public record
Updated Mar 7, 2025 · Synced Oct 6, 2026, 9:42 AM EDT
Active, not recruiting Phase 1 Interventional

Study of AZD9833 Alone or in Combination in Women With Advanced Breast Cancer.

NCT03616587
View directory record Official record
Conditions
ER+ HER2- Advanced Breast Cancer
Interventions
AZD9833, AZD9833 with palbociclib, AZD9833 with everolimus, AZD9833 with abemaciclib, AZD9833 with capivasertib, AZD9833 with ribociclib, AZD9833 with anastrozole
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years · Female only
Enrollment
396 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2027
U.S. locations
5
States / cities
Aurora, Colorado • Sarasota, Florida • Philadelphia, Pennsylvania + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 18, 2026 · Synced Oct 6, 2026, 9:42 AM EDT
Withdrawn Phase 1Phase 2 Interventional

A Rollover Protocol of Elacestrant, in Combination With Onapristone, for Patients With ER+, PR+, HER2- Advanced or Metastatic Breast Cancer

NCT06938711
View directory record Official record
Conditions
Breast Cancer
Interventions
Elacestrant, Onapristone
Drug
Lead sponsor
Context Therapeutics Inc.
Industry
Eligibility
18 Years and older · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 22, 2025 · Synced Oct 6, 2026, 9:42 AM EDT
Terminated Phase 1Phase 2 Interventional

PTX-200, Paclitaxel, Doxorubicin Hydrochloride, and Cyclophosphamide in Treating Patients With Stage IIB-IV Breast Cancer

NCT01697293
View directory record Official record
Conditions
Breast Adenocarcinoma, Estrogen Receptor Positive, HER2/Neu Negative, Recurrent Breast Carcinoma, Stage IIB Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer, Stage IV Breast Cancer
Interventions
Cyclophosphamide, Doxorubicin Hydrochloride, Laboratory Biomarker Analysis, Paclitaxel, Therapeutic Conventional Surgery, Triciribine Phosphate
Drug · Other · Procedure
Lead sponsor
Prescient Therapeutics, Ltd.
Industry
Eligibility
18 Years and older
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2020
U.S. locations
2
States / cities
Tampa, Florida • The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Sep 24, 2020 · Synced Oct 6, 2026, 9:42 AM EDT
Completed Phase 1Phase 2 Interventional Results available

A Phase 1/2 Trial of ARV-471 Alone and in Combination With Palbociclib (IBRANCE®) in Participants With ER+/HER2- Locally Advanced or Metastatic Breast Cancer

NCT04072952
View directory record Official record
Conditions
Breast Cancer
Interventions
Vepdegestrant, Palbociclib
Drug
Lead sponsor
Arvinas Estrogen Receptor, Inc.
Industry
Eligibility
18 Years and older
Enrollment
219 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
16
States / cities
Palo Alto, California • San Francisco, California • Santa Monica, California + 12 more
Source: ClinicalTrials.gov public record
Updated Sep 29, 2026 · Synced Oct 6, 2026, 9:42 AM EDT
Completed Phase 3 Interventional Results available

Study to Assess the Safety and Efficacy of Ribociclib (LEE011) in Combination With Letrozole for the Treatment of Men and Pre/Postmenopausal Women With HR+ HER2- aBC

NCT02941926
View directory record Official record
Conditions
Breast Cancer
Interventions
Ribociclib, Letrozole, Goserelin, Leuprolide
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
3,246 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
71
States / cities
Anchorage, Alaska • Chandler, Arizona • Phoenix, Arizona + 66 more
Source: ClinicalTrials.gov public record
Updated Oct 24, 2023 · Synced Oct 6, 2026, 9:42 AM EDT
Recruiting Not applicable Interventional

S1703 Serum Tumor Marker Directed Disease Monitoring in Patients With Hormone Receptor Positive Her2 Negative Metastatic Breast Cancer

NCT03723928
View directory record Official record
Conditions
Anatomic Stage IV Breast Cancer AJCC v8, Estrogen Receptor Positive, HER2/Neu Negative, Progesterone Receptor Positive, Prognostic Stage IV Breast Cancer AJCC v8, Elevated CA15-3 or CEA or CA27-29
Interventions
Usual care disease monitoring, Serum Tumor Marker directed disease monitoring, Quality-of-Life Assessment, Anxiety Questionnaire Administration
Other
Lead sponsor
SWOG Cancer Research Network
Network
Eligibility
18 Years and older
Enrollment
739 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2036
U.S. locations
709
States / cities
Anchorage, Alaska • Fairbanks, Alaska • Kingman, Arizona + 456 more
Source: ClinicalTrials.gov public record
Updated Apr 2, 2026 · Synced Oct 6, 2026, 9:42 AM EDT
Terminated Phase 1Phase 2 Interventional Results available

Atezolizumab and Cobimetinib or Idasanutlin in Participants With Stage IV or Unresectable Recurrent Estrogen Receptor Positive Breast Cancer

NCT03566485
View directory record Official record
Conditions
Stage III Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer, Stage IV Breast Cancer, Estrogen Receptor-positive, HER2/Neu Negative
Interventions
Atezolizumab, Cobimetinib, Idasanutlin
Drug
Lead sponsor
Vanderbilt-Ingram Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 11, 2021 · Synced Oct 6, 2026, 9:42 AM EDT
Withdrawn Phase 1 Interventional Accepts healthy volunteers

ISPY-P1.01:Evaluating the Safety of Weekly Paclitaxel With Trastuzumab Duocarmazine (SYD985) in Patients With Metastatic Cancer

NCT04602117
View directory record Official record
Conditions
HER2-positive Breast Cancer, HER2 Low, SYD-985, SYD985, Vic-trastuzumab Duocarmazine, Metastatic Cancer, Metastatic Breast Cancer, Metastatic Gastrointestinal Carcinoid Tumor, Metastatic, HER2 Low Breast Cancer, GastroEsophageal Cancer, Gastroesophageal Adenocarcinoma, Endometrium Tumor, Ovarian Cancer, Ovarian Carcinoma, HER2-positive Gastric Cancer, HER2-positive Metastatic Breast Cancer, HER2 Mutation-Related Tumors, HER-2 Protein Overexpression, HER2 Low HR Positive, HR Positive, Hormone Receptor-positive Breast Cancer, Estrogen Receptor Positive Tumor, Progesterone Receptor-positive Breast Cancer, Triple Negative Breast Cancer, Hormone Receptor Negative Breast Carcinoma, Bladder Cancer
Interventions
Vic-trastuzumab duocarmazine (SYD985) + paclitaxel
Drug
Lead sponsor
QuantumLeap Healthcare Collaborative
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Nov 18, 2023 · Synced Oct 6, 2026, 9:42 AM EDT
Recruiting Phase 2 Interventional

Correlation of Clinical Response to Pathologic Response in Patients With Early Breast Cancer

NCT05020860
View directory record Official record
Conditions
Breast Cancer, Breast Neoplasm, Breast Cancer Female, Breast Cancer Invasive, Breast Cancer Stage II, Breast Cancer Stage III, Triple Negative Breast Cancer, Hormone Receptor-positive Breast Cancer, HER2-positive Breast Cancer, Triple Negative Breast Neoplasms, Estrogen Receptor-positive Breast Cancer
Interventions
Paclitaxel, Carboplatin, Trastuzumab, Pertuzumab, Doxorubicin, Cyclophosphamide, Pembrolizumab, Pertuzumab/Trastuzumab/Hyaluronidase-zzxf
Drug
Lead sponsor
Baylor Breast Care Center
Other
Eligibility
18 Years and older
Enrollment
185 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
2
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 27, 2025 · Synced Oct 6, 2026, 9:42 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Conformal Ablative Radiotherapy in Older Women (CARMEN) With Breast Cancer Undergoing Non-Operative Management

NCT07242118
View directory record Official record
Conditions
Breast Cancer Female
Interventions
SABR
Radiation
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
65 Years and older · Female only
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Feb 10, 2026 · Synced Oct 6, 2026, 9:42 AM EDT
Completed Phase 2 Interventional Results available

Safety and Efficacy Study of Sapanisertib in Combination With Exemestane or Fulvestrant in Postmenopausal Women With Estrogen Receptor Positive/Human Epidermal Growth Factor Receptor 2 Negative (ER+/HER2-) Metastatic Breast Cancer

NCT02049957
View directory record Official record
Conditions
Breast Cancer
Interventions
Sapanisertib, Fulvestrant, Exemestane
Drug
Lead sponsor
Calithera Biosciences, Inc
Industry
Eligibility
18 Years and older · Female only
Enrollment
118 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
30
States / cities
Los Angeles, California • San Francisco, California • Santa Barbara, California + 24 more
Source: ClinicalTrials.gov public record
Updated Feb 8, 2023 · Synced Oct 6, 2026, 9:42 AM EDT
Active, not recruiting Phase 2 Interventional

(Z)-Endoxifen for the Treatment of Premenopausal Women With ER+/HER2- Breast Cancer

NCT05607004
View directory record Official record
Conditions
Breast Neoplasms, Invasive Breast Cancer, Estrogen-receptor-positive Breast Cancer, HER2-negative Breast Cancer
Interventions
(Z)-endoxifen, goserelin
Drug
Lead sponsor
Atossa Therapeutics, Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
14
States / cities
Phoenix, Arizona • Tucson, Arizona • Los Angeles, California + 11 more
Source: ClinicalTrials.gov public record
Updated Jul 8, 2026 · Synced Oct 6, 2026, 9:42 AM EDT
Completed Phase 2 Interventional

Impact of Endocrine Therapy and Abemaciclib on Host and Tumor Immune Cell Repertoire/Function in Advanced ER+/HER2- Breast Cancer

NCT04352777
View directory record Official record
Conditions
Metastatic Breast Cancer, Locally Advanced Breast Cancer, Hormone Receptor Positive Tumor
Interventions
Abemaciclib, Fulvestrant, Aromatase Inhibitors
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years and older · Female only
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 20, 2025 · Synced Oct 6, 2026, 9:42 AM EDT
Not listed Phase 1Phase 2 Interventional

ER+/HER2- Locally Advanced or Metastatic Breast Cancer (ENZENO Study)

NCT04669587
View directory record Official record
Conditions
Estrogen Receptor-Positive, HER2-Negative, Locally Advanced Breast Cancer, Metastatic Breast Cancer
Interventions
ZB716, Palbociclib
Drug
Lead sponsor
EnhancedBio USA Inc.
Other
Eligibility
18 Years and older
Enrollment
106 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Mar 22, 2022 · Synced Oct 6, 2026, 9:42 AM EDT
Terminated Phase 1 Interventional

A Study to Evaluate the Safety, Pharmacokinetics, and Activity of GDC-0587 as a Monotherapy and in Combination With Giredestrant in Participants With Locally Advanced or Metastatic Estrogen Receptor-Positive and Human Epidermal Growth Factor Receptor 2-Negative (ER+/HER2-) Breast Cancer

NCT07214662
View directory record Official record
Conditions
Breast Cancer
Interventions
GDC-0587, Giredestrant, Omeprazole
Drug
Lead sponsor
Genentech, Inc.
Industry
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
2
States / cities
Grand Rapids, Michigan • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Aug 21, 2026 · Synced Oct 6, 2026, 9:42 AM EDT
Completed Phase 1 Interventional

Phase Ib, Dose Escalation Study of Oral LDE225 in Combination With BKM120 in Patients With Advanced Solid Tumors

NCT01576666
View directory record Official record
Conditions
Dose Escalation, Safety, Preliminary Efficacy, Advanced Solid Tumors, Metastatic Breast Cancer, Advanced Pancreatic Adenocarcinoma, Metastatic Colorectal Cancer, Recurrent Glioblastoma Multiforme, Gastric Cancer, Gastroesophageal Junction Cancer, Triple Negative Metastatic Breast Cancer, Hormone Receptor Positive (ER+/PR+, and Her2-) Metastatic Breast Cancer
Interventions
LDE225, BKM120
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
13
States / cities
Los Angeles, California • San Francisco, California • Tampa, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated Dec 19, 2020 · Synced Oct 6, 2026, 9:42 AM EDT
Active, not recruiting Phase 2 Interventional

Clinical Trial Assessing the Safety of Neoadjuvant Palbociclib in Combination With Endocrine Therapy

NCT05069038
View directory record Official record
Conditions
Breast Cancer
Interventions
Palbociclib 125mg
Drug
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years and older · Female only
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2032
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Aug 19, 2026 · Synced Oct 6, 2026, 9:42 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Hydroxychloroquine, Palbociclib, and Letrozole Before Surgery in Treating Patients With Estrogen Receptor Positive, HER2 Negative Breast Cancer

NCT03774472
View directory record Official record
Conditions
Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage IA Breast Cancer AJCC v8, Anatomic Stage IB Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage IIA Breast Cancer AJCC v8, Anatomic Stage IIB Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, Anatomic Stage IIIA Breast Cancer AJCC v8, Anatomic Stage IIIB Breast Cancer AJCC v8, Anatomic Stage IIIC Breast Cancer AJCC v8, Anatomic Stage IV Breast Cancer AJCC v8, Prognostic Stage I Breast Cancer AJCC v8, Prognostic Stage IA Breast Cancer AJCC v8, Prognostic Stage IB Breast Cancer AJCC v8, Prognostic Stage IIA Breast Cancer AJCC v8, Prognostic Stage IIB Breast Cancer AJCC v8, Prognostic Stage III Breast Cancer AJCC v8, Prognostic Stage IIIA Breast Cancer AJCC v8, Prognostic Stage IIIB Breast Cancer AJCC v8, Prognostic Stage IIIC Breast Cancer AJCC v8, Prognostic Stage IV Breast Cancer AJCC v8
Interventions
Hydroxychloroquine, Letrozole, Palbociclib
Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 17, 2025 · Synced Oct 6, 2026, 9:42 AM EDT
Recruiting Not applicable Interventional

Signatera-Guided CDK4/6 Inhibitor Therapy in Breast Cancer

NCT07214532
View directory record Official record
Conditions
Breast Neoplasms, Carcinoma, Ductal, Breast, Receptors, Estrogen (for ER-positive Requirement)
Interventions
ctDNA-Guided Treatment Strategy
Device
Lead sponsor
Natera, Inc.
Industry
Eligibility
18 Years and older
Enrollment
725 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2037
U.S. locations
49
States / cities
Phoenix, Arizona • Scottsdale, Arizona • Tucson, Arizona + 44 more
Source: ClinicalTrials.gov public record
Updated Sep 23, 2026 · Synced Oct 6, 2026, 9:42 AM EDT
Active, not recruiting Phase 2 Interventional Results available

PD 0332991 and Anastrozole for Stage 2 or 3 Estrogen Receptor Positive and HER2 Negative Breast Cancer

NCT01723774
View directory record Official record
Conditions
Breast Neoplasms
Interventions
PD0332991, Anastrozole, Goserelin, Surgery (standard of care), Tumor biopsy
Drug · Procedure
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older · Female only
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2027
U.S. locations
4
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Rochester, Minnesota + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 25, 2026 · Synced Oct 6, 2026, 9:42 AM EDT
Terminated Phase 4 Interventional

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

NCT05183828
View directory record Official record
Conditions
Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, Breast Adenocarcinoma, Invasive Breast Carcinoma of No Special Type
Interventions
Biospecimen Collection, Letrozole, Questionnaire Administration
Procedure · Drug · Other
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older · Female only
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Oct 6, 2026, 9:42 AM EDT
Active, not recruiting Phase 2 Interventional

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

NCT05826964
View directory record Official record
Conditions
Breast Cancer, ER-positive Breast Cancer, HER2-negative Breast Cancer, Metastatic Breast Cancer
Interventions
AI+CDK4/6i, SERD+CDK4/6i, mTOR inhibitor + AI, mTOR inhibitor + SERD, mTOR inhibitor + Selective estrogen receptor modulator, PI3K inhibitor + SERD, PI3K inhibitor + AI, Chemotherapy, Oral SERD, PARPi, AKT inhibitor, Step 3 Arm 2
Drug · Other
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jan 13, 2026 · Synced Oct 6, 2026, 9:42 AM EDT
Terminated Phase 2 Interventional Results available

Goserelin and Letrozole or Anastrozole in Premenopausal Patients With Stage II-III Estrogen Receptor-Positive Breast Cancer

NCT01368263
View directory record Official record
Conditions
Estrogen Receptor-positive Breast Cancer, HER2-negative Breast Cancer, Stage II Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer
Interventions
goserelin acetate, letrozole, anastrozole, chemotherapy, Surgery
Drug · Procedure
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older · Female only
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 3, 2015 · Synced Oct 6, 2026, 9:42 AM EDT