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ClinicalTrials.gov public records Last synced Jul 23, 2026, 2:23 PM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Human Epidermal Growth Factor 2 Negative Carcinoma of Breast Clear all
Active, not recruiting Phase 3 Interventional

Study of Pembrolizumab (MK-3475) Versus Placebo in Combination With Neoadjuvant Chemotherapy & Adjuvant Endocrine Therapy in the Treatment of Early-Stage Estrogen Receptor-Positive, Human Epidermal Growth Factor Receptor 2-Negative (ER+/HER2-) Breast Cancer (MK-3475-756/KEYNOTE-756)

NCT03725059
View directory record Official record
Conditions
Breast Cancer
Interventions
Pembrolizumab (K), Placebo (P), Paclitaxel (X), Doxorubicin (A), Epirubicin (E), Cyclophosphamide (C), Endocrine therapy, Radiation therapy, Surgery
Biological · Drug · Radiation + 1 more
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
1,240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2031
U.S. locations
45
States / cities
Daphne, Alabama • Goodyear, Arizona • Tucson, Arizona + 39 more
Source: ClinicalTrials.gov public record
Updated Jul 10, 2025 · Synced Jul 23, 2026, 2:23 PM EDT
Active, not recruiting Phase 3 Interventional Results available

Efficacy and Safety Comparison of Niraparib to Placebo in Participants With Human Epidermal Growth Factor 2 Negative (HER2-) Breast Cancer Susceptibility Gene Mutation (BRCAmut) or Triple-Negative Breast Cancer (TNBC) With Molecular Disease

NCT04915755
View directory record Official record
Conditions
Neoplasms, Breast
Interventions
Niraparib, Placebo
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
24
States / cities
Burbank, California • Duarte, California • Palo Alto, California + 20 more
Source: ClinicalTrials.gov public record
Updated Jul 15, 2025 · Synced Jul 23, 2026, 2:23 PM EDT
Completed Phase 2 Interventional Results available

A Study of Single-Agent Eribulin Mesylate as First-Line Therapy for Locally Recurrent or Metastatic Human Epidermal Growth Factor Receptor Two (HER2) Negative Breast Cancer

NCT01268150
View directory record Official record
Conditions
Locally Recurrent, Metastatic Breast Cancer ( HER2 Negative)
Interventions
Eribulin mesylate
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
17
States / cities
Miami, Florida • Augusta, Georgia • Macon, Georgia + 13 more
Source: ClinicalTrials.gov public record
Updated Jun 21, 2023 · Synced Jul 23, 2026, 2:23 PM EDT
Recruiting Phase 1Phase 2 Interventional

Study to Assess GTAEXS617 in Participants With Advanced Solid Tumors

NCT05985655
View directory record Official record
Conditions
Head and Neck Squamous Cell Carcinoma (HNSCC), Pancreatic Adenocarcinoma, Non-small Cell Lung Cancer (NSCLC), Platinum-resistant High-grade Epithelial Ovarian, Primary Peritoneal, or Fallopian Tube Cancers (HGSOC), Hormone Receptor Positive [HR+] and Human Epidermal Growth Factor Receptor 2 Negative [HER2-] Breast Carcinoma, Triple Negative Breast Cancer (TNBC)
Interventions
GTAEXS617, SoC
Drug
Lead sponsor
Exscientia AI Ltd., a wholly owned subsidiary of Recursion Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
230 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
4
States / cities
Los Angeles, California • Grand Rapids, Michigan • San Antonio, Texas + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 22, 2026 · Synced Jul 23, 2026, 2:23 PM 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 Jul 23, 2026, 2:23 PM EDT
Terminated Phase 2 Interventional

Phase II Study of REPotrectinib With or Without Fulvestrant in Patients With Hormone Receptor-positive Human Epidermal Growth Factor 2-negative Metastatic Invasive LObular Carcinoma Who Received a Prior Endocrine Therapy in Combination With Cyclin-dependent Kinase 4 and 6 Inhibitor (REPLOT Trial)

NCT06408168
View directory record Official record
Conditions
Hormone Receptor-positive Human Epidermal Growth Factor 2-negative, Metastatic Invasive LObular Carcinoma
Interventions
Fulvestrant, Repotrectinib
Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 4, 2026 · Synced Jul 23, 2026, 2:23 PM EDT
Completed Phase 1 Interventional

A Study of ART4215 for the Treatment of Advanced or Metastatic Solid Tumors

NCT04991480
View directory record Official record
Conditions
Advanced Cancer, Metastatic Cancer, Breast Cancer
Interventions
ART4215, Talazoparib, Niraparib
Drug
Lead sponsor
Artios Pharma Ltd
Industry
Eligibility
18 Years and older
Enrollment
93 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
7
States / cities
New Haven, Connecticut • Orlando, Florida • New York, New York + 4 more
Source: ClinicalTrials.gov public record
Updated Jan 26, 2026 · Synced Jul 23, 2026, 2:23 PM EDT
Withdrawn Phase 1Phase 2 Interventional

Study of NUV-422 in Combination With Fulvestrant in Patients With HR+HER2- aBC

NCT05191004
View directory record Official record
Conditions
Advanced Breast Cancer, Metastatic Breast Cancer, Breast Cancer, Breast Carcinoma, Cancer of the Breast, Cancer of Breast, Malignant Tumor of Breast, Breast Tumor
Interventions
NUV-422, Fulvestrant
Drug
Lead sponsor
Nuvation Bio Inc.
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
5
States / cities
Anaheim, California • Fountain Valley, California • Canton, Ohio + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 10, 2023 · Synced Jul 23, 2026, 2:23 PM EDT
Terminated Not applicable Interventional

A Breast Cancer Treatment Decision Aid for Women Aged 70 and Older

NCT02823262
View directory record Official record
Conditions
Breast Cancer, Estrogen Receptor Positive Breast Cancer, Node-negative Breast Cancer, Human Epidermal Growth Factor 2 Negative Carcinoma of Breast
Interventions
Breast Cancer Treatment Decision Aid for women 70+, Usual Care
Other
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
70 Years and older · Female only
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 4, 2024 · Synced Jul 23, 2026, 2:23 PM EDT
Recruiting 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
136 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
2
States / cities
Grand Rapids, Michigan • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Jul 23, 2026, 2:23 PM EDT
Completed Phase 1Phase 2 Interventional

A Study of Samuraciclib and Elacestrant in Participants With Metastatic or Locally Advanced HR+/HER2-negative Breast Cancer

NCT05963997
View directory record Official record
Conditions
Metastatic Breast Cancer, Locally Advanced Breast Cancer, Breast Cancer
Interventions
Samuraciclib, Elacestrant Dihydrochloride
Drug
Lead sponsor
Carrick Therapeutics Limited
Industry
Eligibility
18 Years and older
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
5
States / cities
Chicago, Illinois • Boston, Massachusetts • Cleveland, Ohio + 2 more
Source: ClinicalTrials.gov public record
Updated Mar 22, 2026 · Synced Jul 23, 2026, 2:23 PM EDT
Recruiting Phase 1 Interventional

RADIANT: Pre-op Radiation With Abemaciclib and Letrozole

NCT06139107
View directory record Official record
Conditions
Breast Cancer
Interventions
Abemaciclib, Letrozole
Drug
Lead sponsor
Mridula George, MD
Other
Eligibility
60 Years and older · Female only
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2032
U.S. locations
4
States / cities
Belleville, New Jersey • Livingston, New Jersey • New Brunswick, New Jersey + 1 more
Source: ClinicalTrials.gov public record
Updated Nov 13, 2025 · Synced Jul 23, 2026, 2:23 PM 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 Jul 23, 2026, 2:23 PM EDT
Terminated Phase 1Phase 2 Interventional Results available

Study of Eribulin Mesylate in Combination With PEGylated Recombinant Human Hyaluronidase (PEGPH20) Versus Eribulin Mesylate Alone in Subjects With Human Epidermal Growth Factor Receptor 2 (HER2)-Negative, High-Hyaluronan (HA) Metastatic Breast Cancer (MBC)

NCT02753595
View directory record Official record
Conditions
Metastatic Breast Cancer
Interventions
Eribulin mesylate, Biologic: PEGylated recombinant human hyaluronidase (PEGPH20), Biologic: PEGylated recombinant human hyaluronidase
Drug · Other
Lead sponsor
Eisai Inc.
Industry
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
7
States / cities
Whittier, California • Atlanta, Georgia • Newnan, Georgia + 4 more
Source: ClinicalTrials.gov public record
Updated Jul 12, 2020 · Synced Jul 23, 2026, 2:23 PM EDT
Active, not recruiting Phase 3 Interventional Results available

PALbociclib CoLlaborative Adjuvant Study

NCT02513394
View directory record Official record
Conditions
Breast Cancer
Interventions
Palbociclib, Standard Adjuvant Endocrine Therapy
Drug
Lead sponsor
Alliance Foundation Trials, LLC.
Other
Eligibility
18 Years and older
Enrollment
5,796 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2028
U.S. locations
192
States / cities
Mobile, Alabama • Anchorage, Alaska • Phoenix, Arizona + 138 more
Source: ClinicalTrials.gov public record
Updated Jun 14, 2026 · Synced Jul 23, 2026, 2:23 PM EDT
Completed No phase listed Observational

A Study to Learn About the Relationship Between Hepatic Impairment and Myelosuppression (Decreased Bone Marrow Function) in Breast Cancer Patients Treated With the Study Medicine Palbociclib (Pal-bow-sai-klib)

NCT05912933
View directory record Official record
Conditions
Breast Cancer
Interventions
Not listed
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
1,342 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Jul 23, 2026, 2:23 PM EDT
Terminated Phase 1 Interventional Results available

Dose Escalation and Expansion Study of GSK525762 in Combination With Fulvestrant in Participants With Hormone Receptor-positive (HR+)/Human Epidermal Growth Factor Receptor 2 Negative (HER2-) Advanced or Metastatic Breast Cancer

NCT02964507
View directory record Official record
Conditions
Neoplasms
Interventions
GSK525762, Placebo, Fulvestrant
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older · Female only
Enrollment
124 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
15
States / cities
Birmingham, Alabama • Gilbert, Arizona • Scottsdale, Arizona + 12 more
Source: ClinicalTrials.gov public record
Updated Aug 28, 2024 · Synced Jul 23, 2026, 2:23 PM EDT
Completed No phase listed Observational

A Study to Learn About the Dangers Linked to Myelosuppression (Decreased Bone Marrow Function) in Breast Cancer Patients Treated With the Study Medicine Palbociclib (Pal Bow Sai Klib)

NCT05709158
View directory record Official record
Conditions
Breast Cancer
Interventions
Not listed
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
4,184 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 1, 2026 · Synced Jul 23, 2026, 2:23 PM 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 Jul 23, 2026, 2:23 PM EDT
Completed Phase 2 Interventional Results available

Study of 2 Ribociclib Doses in Combination With Aromatase Inhibitors in Women With HR+, HER2- Advanced Breast Cancer

NCT03822468
View directory record Official record
Conditions
Breast Cancer
Interventions
Ribociclib, Anastrozole, Letrozole, Goserelin
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 100 Years · Female only
Enrollment
376 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
14
States / cities
Mobile, Alabama • Greenbrae, California • Longmont, Colorado + 11 more
Source: ClinicalTrials.gov public record
Updated Oct 15, 2025 · Synced Jul 23, 2026, 2:23 PM EDT
Terminated Phase 1Phase 2 Interventional Results available

A Study of PF-06873600 in People With Cancer

NCT03519178
View directory record Official record
Conditions
HR+ HER2- Metastatic Breast Cancer, Ovarian Cancer, Fallopian Tube Cancer, Primary Peritoneal Cancer, Triple Negative Breast Cancer, Male Breast Cancer
Interventions
PF-06873600, Endocrine Therapy 1, Endocrine Therapy 2
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
155 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
39
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Fayetteville, Arkansas + 22 more
Source: ClinicalTrials.gov public record
Updated Nov 13, 2025 · Synced Jul 23, 2026, 2:23 PM EDT
Completed Phase 1 Interventional

A Study To Assess The Tolerability And Clinical Activity Of Gedatolisib In Combination With Palbociclib/Letrozole Or Palbociclib/Fulvestrant In Women With Metastatic Breast Cancer

NCT02684032
View directory record Official record
Conditions
Breast Cancer
Interventions
Gedatolisib, Palbociclib, Letrozole, Fulvestrant
Drug
Lead sponsor
Celcuity Inc
Industry
Eligibility
18 Years and older · Female only
Enrollment
141 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
41
States / cities
Birmingham, Alabama • Corona, California • Fountain Valley, California + 17 more
Source: ClinicalTrials.gov public record
Updated Jul 26, 2022 · Synced Jul 23, 2026, 2:23 PM EDT
Active, not recruiting Phase 2 Interventional Results available

To Assess Safety and Efficacy of Agents Targeting DNA Damage Repair With Olaparib Versus Olaparib Monotherapy.

NCT03330847
View directory record Official record
Conditions
Metastatic Triple Negative Breast Cancer
Interventions
Olaparib Continuous (28-Day cycle) 300 mg BD., Ceralasertib 160 mg OD + olaparib continuous 300 mg BD (28-day cycle)., Adavosertib 150 mg BD + olaparib 200 mg BD (21-day cycle).
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years
Enrollment
273 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
20
States / cities
Birmingham, Alabama • Anchorage, Alaska • Gilbert, Arizona + 17 more
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Jul 23, 2026, 2:23 PM EDT
Active, not recruiting Phase 2 Interventional Results available

A Phase 2 Study of Eribulin Followed by AC as Preoperative Therapy for HER2-negative Inflammatory Breast Cancer

NCT02623972
View directory record Official record
Conditions
Inflammatory Breast Cancer, Human Epidermal Growth Factor 2 Negative Carcinoma of Breast
Interventions
Eribulin, Adriamycin, Cyclophosphamide
Drug
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2026
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 5, 2026 · Synced Jul 23, 2026, 2:23 PM EDT