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ClinicalTrials.gov public records Last synced May 21, 2026, 8:09 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 66 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Hormone Receptor/Growth Factor Receptor-Negative Breast Cancer Clear all
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Breast Cancer
Interventions
ARV-471, Anastrozole, Surgical resection of breast tumor
Drug · Procedure
Lead sponsor
Arvinas Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
152 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
13
States / cities
Springdale, Arkansas • Los Angeles, California • Torrance, California + 10 more
Source: ClinicalTrials.gov public record
Updated Aug 28, 2025 · Synced May 21, 2026, 8:09 PM EDT
Active, not recruiting Phase 3 Interventional
View directory record Official record
Conditions
Breast Cancer
Interventions
PF-07220060, letrozole, abemaciclib, palbociclib, ribociclib
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
1,035 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2037
U.S. locations
218
States / cities
Birmingham, Alabama • Chandler, Arizona • Gilbert, Arizona + 135 more
Source: ClinicalTrials.gov public record
Updated May 18, 2026 · Synced May 21, 2026, 8:09 PM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Breast Cancer
Interventions
Not listed
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older · Female only
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 26, 2026 · Synced May 21, 2026, 8:09 PM EDT
Completed No phase listed Observational Results available
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 May 21, 2026, 8:09 PM EDT
Recruiting Phase 1 Interventional
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 May 21, 2026, 8:09 PM EDT
Completed Phase 1 Interventional
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 May 21, 2026, 8:09 PM EDT
Recruiting Phase 3 Interventional
View directory record Official record
Conditions
PIK3CA Mutation, HER2- Negative Breast Cancer, Hormone Receptor Positive Tumor, Breast Cancer, Metastatic Breast Cancer, Advanced Breast Cancer
Interventions
RLY-2608, Capivasertib, Fulvestrant
Drug
Lead sponsor
Relay Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
540 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2031
U.S. locations
51
States / cities
Gilbert, Arizona • Beverly Hills, California • Duarte, California + 41 more
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced May 21, 2026, 8:09 PM EDT
Recruiting Phase 3 Interventional
View directory record Official record
Conditions
Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, HER2-Negative Breast Carcinoma, Hormone Receptor-Positive Breast Carcinoma
Interventions
Biospecimen Collection, Cyclophosphamide, Doxorubicin, Durvalumab, Genetic Testing, Mammography, Paclitaxel, Quality-of-Life Assessment
Procedure · Drug · Biological + 1 more
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
3,680 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
534
States / cities
Birmingham, Alabama • Anchorage, Alaska • Tucson, Arizona + 411 more
Source: ClinicalTrials.gov public record
Updated May 19, 2026 · Synced May 21, 2026, 8:09 PM EDT
Active, not recruiting Phase 3 Interventional
View directory record Official record
Conditions
Breast Neoplasms
Interventions
pembrolizumab, paclitaxel, nab-paclitaxel, liposomal doxorubicin, capecitabine, normal saline, dextrose
Biological · Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
340 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
41
States / cities
Birmingham, Alabama • Tucson, Arizona • Monterey, California + 33 more
Source: ClinicalTrials.gov public record
Updated Mar 10, 2026 · Synced May 21, 2026, 8:09 PM EDT
Withdrawn Phase 4 Interventional
View directory record Official record
Conditions
Metastatic Breast Cancer
Interventions
Abemaciclib, Nonsteroidal Aromatase Inhibitor (NSAI)
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
70
States / cities
Daphne, Alabama • Tempe, Arizona • Fountain Valley, California + 60 more
Source: ClinicalTrials.gov public record
Updated Sep 5, 2019 · Synced May 21, 2026, 8:09 PM EDT
Recruiting Phase 1 Interventional
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
4
States / cities
Newport Beach, California • Iowa City, Iowa • Houston, Texas + 1 more
Source: ClinicalTrials.gov public record
Updated Nov 9, 2025 · Synced May 21, 2026, 8:09 PM EDT
Recruiting Not applicable Interventional
View directory record Official record
Conditions
Breast Cancer
Interventions
Intermittent Fasting
Behavioral
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Aug 12, 2025 · Synced May 21, 2026, 8:09 PM EDT
Terminated Phase 2 Interventional Results available
View directory record Official record
Conditions
Metastatic Breast Cancer
Interventions
lapatinib
Drug
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2018
U.S. locations
3
States / cities
Kansas City, Kansas • Topeka, Kansas • Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 30, 2019 · Synced May 21, 2026, 8:09 PM EDT
Active, not recruiting Phase 1Phase 2 Interventional
View directory record Official record
Conditions
Breast Cancer, Invasive Breast Cancer, Unresectable Breast Carcinoma, Locally Advanced Breast Cancer, Metastatic Breast Cancer, Inflammatory Breast Cancer, Triple Negative Breast Cancer (TNBC), Hormone Receptor/Growth Factor Receptor-Negative Breast Cancer, HER2-negative Breast Cancer, Hormone Receptor Negative Breast Carcinoma
Interventions
Onvansertib, Paclitaxel
Drug
Lead sponsor
Antonio Giordano, MD
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2029
U.S. locations
3
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 10, 2026 · Synced May 21, 2026, 8:09 PM EDT
Active, not recruiting Phase 2 Interventional
View directory record Official record
Conditions
Advanced or Metastatic Breast Cancer
Interventions
PF-07220060 CDK4 inhibitor, Fulvestrant, Everolimus, Exemestane
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
333 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
17
States / cities
Irvine, California • Los Angeles, California • Newport Beach, California + 9 more
Source: ClinicalTrials.gov public record
Updated Feb 12, 2026 · Synced May 21, 2026, 8:09 PM EDT
Recruiting Phase 2 Interventional
View directory record Official record
Conditions
Breast Cancer
Interventions
A CDK4/6 inhibitor different from the first that the participant had received, plus fulvestrant., Treatment of physician's choice
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Apr 8, 2026 · Synced May 21, 2026, 8:09 PM EDT
Terminated Phase 1 Interventional
View directory record Official record
Conditions
Advanced Solid Tumor, Gynecologic Cancer, Breast Cancer, Colorectal Cancer, Lung Adenocarcinoma, Renal Cell Carcinoma, Triple Negative Breast Cancer, Hormone Receptor/Growth Factor Receptor-Negative Breast Cancer, Ovarian Cancer
Interventions
PY314, Combination Therapy: PY314 + Pembrolizumab
Drug
Lead sponsor
Ikena Oncology
Industry
Eligibility
18 Years and older
Enrollment
86 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
23
States / cities
Phoenix, Arizona • Scottsdale, Arizona • Duarte, California + 18 more
Source: ClinicalTrials.gov public record
Updated Mar 21, 2024 · Synced May 21, 2026, 8:09 PM EDT
Recruiting Phase 1 Interventional
View directory record Official record
Conditions
Solid Tumor, Advanced Solid Tumor, Solid Tumor, Adult, Metastatic Tumor, Ovarian Cancer, Ovarian Neoplasms, Ovarian Carcinoma, Metastatic Ovarian Carcinoma, Endometrial Neoplasms, Endometrial Diseases, Metastatic Endometrial Cancer, Triple Negative Breast Cancer, Metastatic Endometrial Carcinoma, Advanced Endometrial Carcinoma, Advanced Ovarian Carcinoma, Gastric Cancer, Advanced Gastric Carcinoma, Metastatic Gastric Cancer, Metastatic Gastric Carcinoma, Small Cell Lung Cancer, Small Cell Lung Carcinoma, Triple Negative Breast Neoplasms, Platinum-resistant Ovarian Cancer, Platinum-refractory Ovarian Carcinoma, CCNE1 Amplification, Hormone Receptor Negative Breast Carcinoma, Human Epidermal Growth Factor 2 Negative Carcinoma of Breast, Progesterone-receptor-positive Breast Cancer
Interventions
NKT3964
Drug
Lead sponsor
NiKang Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
19
States / cities
Little Rock, Arkansas • Los Angeles, California • San Francisco, California + 16 more
Source: ClinicalTrials.gov public record
Updated Apr 20, 2026 · Synced May 21, 2026, 8:09 PM EDT
Active, not recruiting Phase 1Phase 2 Interventional
View directory record Official record
Conditions
Breast Cancer, Solid Tumors
Interventions
PF-07220060 + PF-07104091 combination dose escalation, PF-07104091 + PF-07220060 + fulvestrant dose expansion, PF-07104091 + PF-07220060 + letrozole dose expansion
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
192 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
12
States / cities
Los Angeles, California • Santa Monica, California • Boston, Massachusetts + 5 more
Source: ClinicalTrials.gov public record
Updated Nov 17, 2024 · Synced May 21, 2026, 8:09 PM EDT
Recruiting Phase 3 Interventional
View directory record Official record
Conditions
Locally Advanced (Inoperable) or Metastatic Breast Cancer
Interventions
Capivasertib, Fulvestrant, Palbociclib, Ribociclib, Abemaciclib
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 99 Years
Enrollment
895 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2029
U.S. locations
52
States / cities
Tucson, Arizona • Fountain Valley, California • Glendale, California + 45 more
Source: ClinicalTrials.gov public record
Updated Apr 19, 2026 · Synced May 21, 2026, 8:09 PM EDT
Recruiting Phase 1 Interventional
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
10
States / cities
Hot Springs, Arkansas • Ocoee, Florida • Savannah, Georgia + 7 more
Source: ClinicalTrials.gov public record
Updated May 17, 2026 · Synced May 21, 2026, 8:09 PM EDT
Completed Phase 1Phase 2 Interventional
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 May 21, 2026, 8:09 PM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Metastatic Breast Cancer
Interventions
Not listed
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
373 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
East Hanover, New Jersey
Source: ClinicalTrials.gov public record
Updated Aug 28, 2025 · Synced May 21, 2026, 8:09 PM EDT
Active, not recruiting Phase 4 Interventional
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 Apr 1, 2026 · Synced May 21, 2026, 8:09 PM EDT