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ClinicalTrials.gov public records Last synced Oct 2, 2026, 4:07 AM EDT

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

Showing 1–14 of 14 matching trials from the live ClinicalTrials.gov search.

Filters: Intervention: Physician's Choice of Endocrine Therapy Clear all

Conditions: Breast Cancer, Invasive Breast Cancer
Interventions: Anastrozole, Letrozole, Exemestane, Tamoxifen; Drug
Lead sponsor: Medical College of Wisconsin; Other
Eligibility: 18 Years and older · Female only
Enrollment: 37 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2017 – 2025
U.S. locations: 1
States / cities: Milwaukee, Wisconsin

Conditions: Malignant Neoplasm
Interventions: Opevesostat, Fludrocortisone/ Fludrocortisone acetate, Dexamethasone/Dexamethasone acetate, Rescue Medications, Fulvestrant, Exemestane, Megestrol acetate/Medroxyprogesterone acetate, Tamoxifen, Letrozole; Drug
Lead sponsor: Merck Sharp & Dohme LLC; Industry
Eligibility: 18 Years and older
Enrollment: 250 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2025 – 2027
U.S. locations: 10
States / cities: Anchorage, Alaska • Miami Beach, Florida • Shreveport, Louisiana + 6 more

Conditions: Breast Cancer Metastatic
Interventions: Amcenestrant, Fulvestrant, Anastrozole, Letrozole, Exemestane, Tamoxifen; Drug
Lead sponsor: Sanofi; Industry
Eligibility: 18 Years and older
Enrollment: 367 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2019 – 2025
U.S. locations: 14
States / cities: Birmingham, Alabama • Bakersfield, California • Santa Monica, California + 11 more

Conditions: Advanced Breast Cancer
Interventions: Saruparib (AZD5305), Camizestrant, Abemaciclib, Ribociclib, Palbociclib, Fulvestrant, Letrozole, Anastrozole, Exemestane; Drug
Lead sponsor: AstraZeneca; Industry
Eligibility: 18 Years and older
Enrollment: 788 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2024 – 2031
U.S. locations: 57
States / cities: Gilbert, Arizona • Fountain Valley, California • Glendale, California + 49 more

Conditions: Early Breast Cancer
Interventions: Giredestrant, Physician's Choice of Endocrine Therapy, LHRH Agonist; Drug
Lead sponsor: Hoffmann-La Roche; Industry
Eligibility: 18 Years and older
Enrollment: 4,170 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2021 – 2033
U.S. locations: 72
States / cities: Daphne, Alabama • Bakersfield, California • Fullerton, California + 66 more

Conditions: Invasive Mammary Carcinoma, Metastatic Breast Cancer
Interventions: Capecitabine, Endocrine-therapy, MammoPrint ® and BluePrint assays; Drug · Other
Lead sponsor: Sonya Reid; Other
Eligibility: 18 Years and older
Enrollment: 64 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2023 – 2037
U.S. locations: 3
States / cities: Birmingham, Alabama • Nashville, Tennessee • Dallas, Texas

Conditions: Locoregional Recurrence, Hormone Receptor-positive Breast Cancer, HER2-negative Breast Cancer
Interventions: Ribociclib, Fulvestrant, Anastrozole, Letrozole, Exemestane; Drug
Lead sponsor: Oana Danciu; Other
Eligibility: 18 Years and older
Enrollment: 200 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2022 – 2029
U.S. locations: 21
States / cities: Birmingham, Alabama • Phoenix, Arizona • Washington D.C., District of Columbia + 18 more

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

Conditions: Estrogen Receptor (ER)-Positive, HER2-negative, Locally Advanced or Metastatic Breast Cancer
Interventions: Giredestrant, Exemestane, Fulvestrant, Tamoxifen, Everolimus, LHRH Agonist, Dexamethasone Mouth Rinse; Drug
Lead sponsor: Genentech, Inc.; Industry
Eligibility: 18 Years and older
Enrollment: 373 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2022 – 2026
U.S. locations: 55
States / cities: Anchorage, Alaska • Tucson, Arizona • Little Rock, Arkansas + 47 more

Conditions: Breast Cancer
Interventions: Trastuzumab emtansine, Treatment of physician's choice; Drug
Lead sponsor: Hoffmann-La Roche; Industry
Eligibility: 18 Years and older
Enrollment: 602 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2011 – 2015
U.S. locations: 59
States / cities: Tucson, Arizona • Hot Springs, Arkansas • Hayward, California + 52 more

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

Conditions: Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage IIIA Breast Cancer AJCC v8, Anatomic Stage IIIC Breast Cancer AJCC v8, Estrogen Receptor-Positive Breast Carcinoma, HER2-Negative Breast Carcinoma
Interventions: Anastrozole, Biospecimen Collection, Bone Scan, Chemotherapy, Computed Tomography, Exemestane, Letrozole, Oncotype DX Breast Cancer Assay, Positron Emission Tomography, Ribociclib Succinate; Drug · Procedure
Lead sponsor: National Cancer Institute (NCI); NIH
Eligibility: 18 Years and older
Enrollment: 1,978 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2026 – 2029
U.S. locations: 188
States / cities: Jonesboro, Arkansas • Auburn, California • Berkeley, California + 158 more

Conditions: Estrogen Receptor-Positive, HER2-Negative, Locally Advanced or Metastatic Breast Cancer
Interventions: Giredestrant, Fulvestrant or an Aromatase Inhibitor (Physician Choice), LHRH Agonist; Drug
Lead sponsor: Hoffmann-La Roche; Industry
Eligibility: 18 Years and older
Enrollment: 303 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2020 – 2027
U.S. locations: 3
States / cities: Marietta, Georgia • Cleveland, Ohio • Tigard, Oregon

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

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Neoadjuvant Endocrine Therapy in Hormone Receptor-Positive, Human Epidermal Growth Factor Receptor 2 (HER2)-Negative Node-Negative Breast Cancer

A Study of MK-5684 in People With Certain Solid Tumors (MK-5684-015/OMAHA-015)

Phase 2 Study of Amcenestrant (SAR439859) Versus Physician's Choice in Locally Advanced or Metastatic ER-positive Breast Cancer

Saruparib (AZD5305) Plus Camizestrant or Plus Endocrine Therapy, Compared With CDK4/6 Inhibitor Plus Endocrine Therapy or Plus Camizestrant in HR-Positive, HER2-Negative (IHC 0, 1+, 2+/ ISH Non-amplified), BRCA1, BRCA2, or PALB2m Advanced Breast Cancer

A Study Evaluating the Efficacy and Safety of Adjuvant Giredestrant Compared With Physician's Choice of Adjuvant Endocrine Monotherapy in Participants With Estrogen Receptor-Positive, HER2-Negative Early Breast Cancer (lidERA Breast Cancer)

Gene Signatures to Guide HR+MBC Therapy in a Diverse Cohort

Ribociclib And Endocrine Treatment of Physician's Choice for Locoregional Recurrent, Resected Hormone Receptor Positive HER2 Negative Breast Cancer

Signatera-Guided CDK4/6 Inhibitor Therapy in Breast Cancer

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

A Study of Trastuzumab Emtansine in Comparison With Treatment of Physician's Choice in Participants With HER2-positive Breast Cancer Who Have Received at Least Two Prior Regimens of HER2-directed Therapy

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

Testing Whether Hormone Therapy With Ribociclib is as Effective as Chemotherapy Followed by Hormone Therapy With Ribociclib for the Treatment of High Anatomic Stage Breast Cancer With Low Recurrence Risk, The RxFINE-Low Trial

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)

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