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ClinicalTrials.gov public records Last synced Jun 25, 2026, 7:05 AM EDT

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Showing 1–24 of 129 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: HR Positive/HER-2 Negative Breast Cancer Clear all
Terminated Phase 1 Interventional

Ribociclib + PDR001 in Breast Cancer and Ovarian Cancer

NCT03294694
View directory record Official record
Conditions
Metastatic Hormone-Receptor-Positive (HR+) Breast Cancer, HER2-Negative Breast Cancer, Metastatic Epithelial Ovarian Cancer
Interventions
Ribociclib, PDR001, Fulvestrant
Drug
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
3
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 30, 2025 · Synced Jun 25, 2026, 7:05 AM EDT
Active, not recruiting No phase listed Observational

Use of Sentinel Lymph Node Biopsy in Patients With Early-Stage, Palpable Node-Positive HR+/HER2- Breast Cancer Having Upfront Surgery and Adjuvant Radiation

NCT04854005
View directory record Official record
Conditions
Breast Cancer
Interventions
Breast surgery
Procedure
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
10
States / cities
Hartford, Connecticut • Ann Arbor, Michigan • Basking Ridge, New Jersey + 7 more
Source: ClinicalTrials.gov public record
Updated May 28, 2026 · Synced Jun 25, 2026, 7:05 AM EDT
Completed Phase 2 Interventional

A Study to Learn About the Study Medicine PF-07220060 Together With Letrozole Compared to Letrozole Alone in Women Post Menopause

NCT06465368
View directory record Official record
Conditions
Breast Cancer
Interventions
PF-07220060, letrozole
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older · Female only
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
10
States / cities
Barrington, Illinois • Crystal Lake, Illinois • Park Ridge, Illinois + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 30, 2025 · Synced Jun 25, 2026, 7:05 AM EDT
Recruiting Phase 1 Interventional

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

NCT06756932
View directory record Official record
Conditions
Hormone-receptor-positive Breast Cancer, HER2-negative Breast Cancer, Metastatic Breast Cancer
Interventions
BGB-21447, Fulvestrant, BGB-43395
Drug
Lead sponsor
BeOne Medicines
Industry
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
3
States / cities
Iowa City, Iowa • Houston, Texas • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 21, 2026 · Synced Jun 25, 2026, 7:05 AM EDT
Recruiting Phase 1Phase 2 Interventional

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

NCT06993844
View directory record Official record
Conditions
Advanced Solid Tumors, Advanced Breast Cancer
Interventions
ETX-636 dose escalation, ETX-636 dose escalation in combination with fulvestrant, ETX-636 dose expansion in combination with fulvestrant
Drug
Lead sponsor
Ensem Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
233 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
10
States / cities
Newport Beach, California • San Francisco, California • New Haven, Connecticut + 6 more
Source: ClinicalTrials.gov public record
Updated Jun 22, 2026 · Synced Jun 25, 2026, 7:05 AM EDT
Active, not recruiting Phase 3 Interventional

Study of Sacituzumab Govitecan Versus Treatment of Physician's Choice in Patients With Hormone Receptor-positive/Human Epidermal Growth Factor Receptor 2 Negative (HR+/HER2-) Metastatic Breast Cancer Who Have Received Endocrine Therapy

NCT05840211
View directory record Official record
Conditions
Locally Advanced or Unresectable Metastatic Breast Cancer, Stage IV Breast Cancer
Interventions
Sacituzumab Govitecan-hziy, Paclitaxel, Nab-paclitaxel, Capecitabine
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
654 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
30
States / cities
Chandler, Arizona • Los Angeles, California • Palo Alto, California + 25 more
Source: ClinicalTrials.gov public record
Updated Oct 2, 2025 · Synced Jun 25, 2026, 7:05 AM EDT
Active, not recruiting Phase 3 Interventional Results available

A Study to Learn About a New Medicine Called Vepdegestrant (ARV-471, PF-07850327) in People Who Have Advanced Metastatic Breast Cancer

NCT05654623
View directory record Official record
Conditions
Advanced Breast Cancer
Interventions
ARV-471, Fulvestrant
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
624 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
87
States / cities
Encinitas, California • Fountain Valley, California • Fresno, California + 69 more
Source: ClinicalTrials.gov public record
Updated Mar 17, 2026 · Synced Jun 25, 2026, 7:05 AM EDT
Completed No phase listed Observational

A Real-world Study of Effectiveness and Safety in HR+/HER2- Breast Cancer Patients Treated With Ribociclib or Alpelisib

NCT06705504
View directory record Official record
Conditions
Hormone Receptor Positive HER-2 Negative Breast Cancer
Interventions
Not listed
Lead sponsor
Novartis
Industry
Eligibility
18 Years and older
Enrollment
435 participants
Timeline
2021 – 2023
U.S. locations
1
States / cities
East Hanover, New Jersey
Source: ClinicalTrials.gov public record
Updated Nov 25, 2024 · Synced Jun 25, 2026, 7:05 AM EDT
Recruiting Phase 2 Interventional

Preventing Dato-DXd Associated Stomatitis With Dexamethasone Mouthwash, TROPION-DM

NCT06974604
View directory record Official record
Conditions
Breast Neoplasms, Lung Neoplasms
Interventions
Dexamethasone oral
Drug
Lead sponsor
Brown University
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Oct 23, 2025 · Synced Jun 25, 2026, 7:05 AM EDT
Completed No phase listed Observational Results available

RW Treatment Patterns and Outcomes in Postmenopausal HR+/HER2- mBC Patients Treated With Palbociclib Plus Letrozole as Initial Endocrine Therapy at Community Oncology Practices in the U.S.

NCT04460898
View directory record Official record
Conditions
Breast Cancer
Interventions
Not listed
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older · Female only
Enrollment
195 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 3, 2024 · Synced Jun 25, 2026, 7:05 AM EDT
Active, not recruiting Phase 4 Interventional

Roll-over Study to Allow Continued Access to Ribociclib

NCT05161195
View directory record Official record
Conditions
Metastatic Breast Cancer
Interventions
Ribociclib, Letrozole, Anastrozole, Goserelin, Tamoxifen, Fulvestrant
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 100 Years
Enrollment
134 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2030
U.S. locations
16
States / cities
Chandler, Arizona • Fayetteville, Arkansas • Beverly Hills, California + 13 more
Source: ClinicalTrials.gov public record
Updated Jun 22, 2026 · Synced Jun 25, 2026, 7:05 AM EDT
Terminated No phase listed Observational

HER-Seq: A Blood-based Screening Study to Identify Patients With HER2 Mutations for Enrollment Into Clinical Research Studies of Neratinib

NCT03786107
View directory record Official record
Conditions
Hormone Receptor-Positive, HER2-Negative Metastatic Breast Cancer, Metastatic Cervical Cancer
Interventions
Almac HER-Seq Assay
Diagnostic Test
Lead sponsor
Puma Biotechnology, Inc.
Industry
Eligibility
18 Years and older
Enrollment
1,583 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 18, 2021 · Synced Jun 25, 2026, 7:05 AM EDT
Recruiting Phase 1 Interventional

A Study of Mutant Selective-Inhibitor (CGT6297), in Patients With Advanced Solid Tumors

NCT07383506
View directory record Official record
Conditions
PIK3CA Mutations, Advanced Solid Tumors, Adult, Endometrial Cancer, HR Positive/HER-2 Negative Breast Cancer, HER2-low Breast Cancer
Interventions
CGT6297
Drug
Lead sponsor
Cogent Biosciences, Inc.
Industry
Eligibility
18 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
2
States / cities
Austin, Texas • Fairfax, Virginia
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Jun 25, 2026, 7:05 AM EDT
Recruiting Phase 1 Interventional

A Trial to Evaluate Ovarian Suppression Following Subcutaneous ZOLADEX 10.8 mg in Premenopausal Women With HR+, HER2- Advanced Breast Cancer

NCT07310420
View directory record Official record
Conditions
Advanced Breast Cancer
Interventions
ZOLADEX
Drug
Lead sponsor
TerSera Therapeutics LLC
Industry
Eligibility
18 Years to 55 Years · Female only
Enrollment
88 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
11
States / cities
Hot Springs, Arkansas • Washington D.C., District of Columbia • Ocoee, Florida + 8 more
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Jun 25, 2026, 7:05 AM EDT
Completed Phase 1 Interventional

HOPE: Olaparib, Palbociclib and Fulvestrant in Patients With BRCA Mutation-associated, HR+, HER2-metastatic Breast Cancer

NCT03685331
View directory record Official record
Conditions
Metastatic Breast Cancer, Locally Advanced Breast Cancer, Advanced Breast Cancer, BRCA2 Mutation, BRCA1 Mutation
Interventions
Palbociclib, Olaparib, Fulvestrant
Drug
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
18 Years and older · Female only
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 8, 2026 · Synced Jun 25, 2026, 7:05 AM EDT
Recruiting Phase 3 Interventional

Phase IIIb Study of Ribociclib + ET in Early Breast Cancer

NCT05827081
View directory record Official record
Conditions
Early Breast Cancer
Interventions
Ribociclib, Letrozole, Ansastrozole, Goserelin, Leuprolide, Exemestane
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 100 Years
Enrollment
1,400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2030
U.S. locations
78
States / cities
Birmingham, Alabama • Anchorage, Alaska • Goodyear, Arizona + 69 more
Source: ClinicalTrials.gov public record
Updated Jun 21, 2026 · Synced Jun 25, 2026, 7:05 AM EDT
Recruiting Phase 1 Interventional

Clinical Trial of Avasopasem in Patients With Metastatic Hormone Receptor Positive Breast Cancer With Progression on a CDK 4/6 Inhibitor and Hormonal Therapy

NCT07137871
View directory record Official record
Conditions
Breast Cancer Metastatic
Interventions
Avasopasem
Drug
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Oct 30, 2025 · Synced Jun 25, 2026, 7:05 AM EDT
Recruiting Not applicable Interventional

Treatment Monitoring of Patients Receiving CDK 4/6 Inhibitors for Hormone Receptor (HR) Positive, HER2 Negative Metastatic Breast Cancer (MBC) With or Without the Addition of DiviTum® Serum Thymidine Kinase 1 (TK1) Activity Testing

NCT04968964
View directory record Official record
Conditions
Breast Cancer, Cancer of the Breast
Interventions
DiviTum® TKa assay, Study Care Plans
Device · Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2029
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 6, 2026 · Synced Jun 25, 2026, 7:05 AM EDT
Active, not recruiting Phase 3 Interventional Results available

Capivasertib+Fulvestrant vs Placebo+Fulvestrant as Treatment for Locally Advanced (Inoperable) or Metastatic HR+/HER2- Breast Cancer

NCT04305496
View directory record Official record
Conditions
Locally Advanced (Inoperable) or Metastatic Breast Cancer
Interventions
Fulvestrant, Capivasertib, Placebo
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years
Enrollment
818 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
22
States / cities
Gilbert, Arizona • Orange, California • San Francisco, California + 19 more
Source: ClinicalTrials.gov public record
Updated Apr 29, 2026 · Synced Jun 25, 2026, 7:05 AM EDT
Completed Phase 2 Interventional Results available

Pembrolizumab and Doxorubicin Hydrochloride or Anti-Estrogen Therapy in Treating Patients With Triple-Negative or Hormone Receptor-Positive Metastatic Breast Cancer

NCT02648477
View directory record Official record
Conditions
Estrogen Receptor Negative, Estrogen Receptor Positive, HER2/Neu Negative, Progesterone Receptor Negative, Progesterone Receptor Positive, Stage IV Breast Cancer, Triple-Negative Breast Carcinoma
Interventions
Anastrozole, Doxorubicin Hydrochloride, Exemestane, Laboratory Biomarker Analysis, Letrozole, Pembrolizumab
Drug · Other · Biological
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2023
U.S. locations
6
States / cities
Corona, California • Duarte, California • Lancaster, California + 3 more
Source: ClinicalTrials.gov public record
Updated Mar 18, 2024 · Synced Jun 25, 2026, 7:05 AM EDT
Active, not recruiting Phase 1 Interventional

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

NCT06257264
View directory record Official record
Conditions
Breast Cancer, Small Cell Lung Cancer, Ovarian Cancer, Gastric Cancer, Hormone-receptor-positive Breast Cancer, Hormone Receptor Positive HER-2 Negative Breast Cancer, Advanced Solid Tumor, Endometrial Cancer, Prostate Cancer, TNBC - Triple-Negative Breast Cancer, GastroEsophageal Cancer, Bladder Cancer
Interventions
BG-68501, Fulvestrant, BGB-43395
Drug
Lead sponsor
BeiGene
Industry
Eligibility
18 Years and older
Enrollment
103 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
6
States / cities
Newport Beach, California • Lake Mary, Florida • St Louis, Missouri + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 17, 2026 · Synced Jun 25, 2026, 7:05 AM EDT
Active, not recruiting Phase 2 Interventional

TRADE: Dose Escalation Tolerability of Abemaciclib in HR+ HER2- Early Stage Breast Cancer

NCT06001762
View directory record Official record
Conditions
Breast Cancer, Early-stage Breast Cancer, High Risk Breast Carcinoma
Interventions
Abemaciclib, Tamoxifen, Anastrozole, Letrozole, Exemestane, LHRH Agonist
Drug
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older · Female only
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
12
States / cities
Stamford, Connecticut • Brewer, Maine • Scarborough, Maine + 7 more
Source: ClinicalTrials.gov public record
Updated Jan 15, 2026 · Synced Jun 25, 2026, 7:05 AM EDT
Completed Phase 1 Interventional

WI231696: Bosutinib, Palbocicilib and Fulvestrant for HR+HER2- Advanced Breast Cancer Refractory to a CDK4/6 Inhibitor

NCT03854903
View directory record Official record
Conditions
Metastatic Breast Cancer, Human Epidermal Growth Factor 2 Negative Carcinoma of Breast, Hormone Receptor Positive Breast Cancer
Interventions
Palbociclib, Bosutinib, Fulvestrant
Drug
Lead sponsor
Georgetown University
Other
Eligibility
18 Years and older · Female only
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Feb 5, 2025 · Synced Jun 25, 2026, 7:05 AM EDT
Completed Phase 2 Interventional

Study to Evaluate the Safety and Antitumor Activity of CX-2009 Monotherapy and in Combination With CX-072 in Advanced Breast Cancer

NCT04596150
View directory record Official record
Conditions
Neoplasms, Breast Neoplasms, Breast Neoplasms, Triple-Negative, Breast Cancer, Breast Neoplasms, Hormone Receptor Positive/HER2 Negative
Interventions
CX-2009, CX-072
Drug
Lead sponsor
CytomX Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
27
States / cities
La Jolla, California • Los Angeles, California • Santa Monica, California + 22 more
Source: ClinicalTrials.gov public record
Updated Jan 22, 2024 · Synced Jun 25, 2026, 7:05 AM EDT