Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Jun 11, 2026, 8:25 AM EDT

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Showing 1–24 of 142 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Breast Cancer, Locally Advanced Breast Cancer, Metastatic Breast Cancer, ER Positive Breast Cancer, HER2 Negative Breast Carcinoma
Interventions
Palazestrant, Letrozole-matching placebo, Ribociclib, Letrozole, Palazestrant matching-placebo
Drug
Lead sponsor
Olema Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2032
U.S. locations
28
States / cities
Hot Springs, Arkansas • Beverly Hills, California • Santa Barbara, California + 25 more
Conditions
Metastatic Breast Cancer
Interventions
Belzutifan, Fulvestrant, Everolimus, Exemestane
Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
14
States / cities
Goodyear, Arizona • Beverly Hills, California • La Jolla, California + 11 more
Conditions
Locally Advanced or Metastatic ER+ HER2- Breast Cancer, Locally Advanced or Metastatic Castration-resistant Prostate Cancer, Locally Advanced or Metastatic Non-small Cell Lung Cancer
Interventions
PF-07248144, Fulvestrant, Letrozole, Palbociclib, PF-07220060, PF-07850327, ARV-471, vepdegestrant
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
320 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2029
U.S. locations
23
States / cities
Scottsdale, Arizona • Los Angeles, California • San Francisco, California + 11 more
Conditions
Breast Cancer
Interventions
Iressa, Tamoxifen
Drug
Lead sponsor
Baylor Breast Care Center
Other
Eligibility
18 Years and older · Female only
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2006
U.S. locations
1
States / cities
Houston, Texas
Conditions
Estrogen Receptor Negative, HER2/Neu Negative, Progesterone Receptor Negative, Recurrent Breast Carcinoma, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer, Stage IV Breast Cancer, Triple-Negative Breast Carcinoma
Interventions
Gamma-Secretase Inhibitor RO4929097, Laboratory Biomarker Analysis, Pharmacogenomic Study, Pharmacological Study, Vismodegib
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
3
States / cities
Baltimore, Maryland • Ann Arbor, Michigan • Detroit, Michigan
Conditions
Metastatic Breast Cancer
Interventions
17B-estradiol, Letrozole, Anastrozole, Exemestane
Drug
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2024
U.S. locations
3
States / cities
Springfield, Massachusetts • Rochester, Minnesota • Lebanon, New Hampshire
Conditions
Inflammatory Breast Cancer, Stage IIA Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer, Triple-negative Breast Cancer, Stage IIB Breast Cancer, Estrogen Receptor Negative, Progesterone Receptor Negative, HER2/Neu Negative
Interventions
carboplatin, paclitaxel albumin-stabilized nanoparticle formulation, laboratory biomarker analysis
Drug · Other
Lead sponsor
City of Hope Medical Center
Other
Eligibility
19 Years and older · Female only
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2026
U.S. locations
2
States / cities
Duarte, California • South Pasadena, California
Conditions
Hormone Receptor-positive Breast Cancer, Hormone Receptor Positive HER-2 Negative Breast Cancer, Metastatic Breast Cancer
Interventions
EP0062, Elacestrant, Everolimus, Abemaciclib, Fulvestrant, Exemestane
Drug
Lead sponsor
Ellipses Pharma
Industry
Eligibility
18 Years and older · Female only
Enrollment
95 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
7
States / cities
New Haven, Connecticut • Tampa, Florida • Boston, Massachusetts + 4 more
Conditions
Locally Advanced or Metastatic Breast Cancer
Interventions
Phesgo, Giredestrant, Docetaxel, Paclitaxel, LHRH Agonist, Optional Endocrine Therapy of Investigator's Choice
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older
Enrollment
922 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2030
U.S. locations
16
States / cities
Tucson, Arizona • Los Angeles, California • Jacksonville, Florida + 13 more
Conditions
Breast Cancer
Interventions
GDC-4198, Giredestrant, Abemaciclib
Drug
Lead sponsor
Genentech, Inc.
Industry
Eligibility
18 Years and older
Enrollment
285 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
16
States / cities
Duarte, California • Irvine, California • La Jolla, California + 13 more
Conditions
Breast Cancer
Interventions
Vepdegestrant (ARV-471/PF-07850327), Palbociclib, Letrozole
Drug · Combination Product
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
3
States / cities
Plantation, Florida • Norfolk, Virginia
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
Conditions
Recurrent Breast Carcinoma, Stage III Breast Cancer AJCC v7, Stage IIIA Breast Cancer AJCC v7, Stage IIIB Breast Cancer AJCC v7, Stage IIIC Breast Cancer AJCC v7, Stage IV Breast Cancer AJCC v6 and v7
Interventions
Endoxifen Hydrochloride, Laboratory Biomarker Analysis, Pharmacological Study, Tamoxifen Citrate
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older · Female only
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2027
U.S. locations
561
States / cities
Mobile, Alabama • Anchorage, Alaska • Fairbanks, Alaska + 357 more
Conditions
Breast Cancer
Interventions
Bosutinib, Letrozole
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older · Female only
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
5
States / cities
Whittier, California • Joliet, Illinois • Niles, Illinois + 2 more
Conditions
Estrogen Receptor Negative, HER2/Neu Negative, Metastatic Breast Cancer, Progesterone Receptor Negative, Recurrent Breast Carcinoma, Triple Negative Breast Cancer
Interventions
Pembrolizumab, Cisplatin
Biological · Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Seattle, Washington
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
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
Conditions
Breast Neoplasms
Interventions
Lapatinib, Letrozole, Placebo
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older · Female only
Enrollment
1,286 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2018
U.S. locations
84
States / cities
Tucson, Arizona • Hot Springs, Arkansas • Jonesboro, Arkansas + 78 more
Conditions
Estrogen Receptor Positive, HER2/Neu Negative, Male Breast Carcinoma, Recurrent Breast Carcinoma, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer, Stage IV Breast Cancer
Interventions
Exemestane, Gamma-Secretase Inhibitor RO4929097, Goserelin Acetate
Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
4
States / cities
Tampa, Florida • Atlanta, Georgia • Chapel Hill, North Carolina + 1 more
Conditions
Metastatic Breast Cancer
Interventions
biomarker study
Other
Lead sponsor
Side-Out Foundation
Other
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
8
States / cities
Birmingham, Alabama • Los Angeles, California • Miami, Florida + 4 more
Conditions
Breast Cancer, Advanced Breast Cancer, Metastatic Breast Cancer, ER Positive Breast Cancer, HER2 Negative Breast Carcinoma
Interventions
Palazestrant, Fulvestrant, Anastrozole, Letrozole, Exemestane
Drug
Lead sponsor
Olema Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
510 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
47
States / cities
Tucson, Arizona • Fountain Valley, California • Glendale, California + 39 more
Conditions
Metastatic Breast Cancer
Interventions
Lasofoxifene in combination with abemaciclib, Fulvestrant in combination with abemaciclib
Drug
Lead sponsor
LeonaBio
Industry
Eligibility
18 Years and older
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
36
States / cities
Scottsdale, Arizona • Tucson, Arizona • Santa Rosa, California + 25 more
Conditions
Advanced Solid Malignancy, Safety and Tolerability, Pharmacokinetics, Pharmacodynamics, Tumour Response, Advanced or Metastatic Breast Cancer, Ovarian Cancer, Cervical Cancer, Endometrial Cancer, PIK3CA, AKT1, PTEN, ER Positive, HER2 Positive
Interventions
AZD5363
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years
Enrollment
285 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2024
U.S. locations
12
States / cities
Los Angeles, California • Stanford, California • West Hollywood, California + 8 more
Conditions
Breast Cancer
Interventions
ARV-471, ARV-471 in combination with palbociclib (IBRANCE®)
Drug
Lead sponsor
Arvinas Estrogen Receptor, Inc.
Industry
Eligibility
18 Years and older
Enrollment
217 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