Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced Jul 23, 2026, 1:30 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 25 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: ESR1 Gene Mutation Clear all
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 Jul 23, 2026, 1:30 PM EDT
Recruiting Early Phase 1 Interventional

FES Imaging to Optimize Tamoxifen for Metastatic Breast Cancer

NCT04174352
View directory record Official record
Conditions
ERα+ Breast Cancer, ESR1 Gene Mutation
Interventions
Tamoxifen, FES PET/CT
Drug · Diagnostic Test
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
19 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
2
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jul 20, 2026 · Synced Jul 23, 2026, 1:30 PM EDT
Recruiting Phase 1 Interventional

PRE-I-SPY Phase I/Ib Oncology Platform Program

NCT05868226
View directory record Official record
Conditions
HER2-positive Breast Cancer, Metastatic Cancer, Metastatic Breast Cancer, Metastatic, HER2-positive Metastatic Breast Cancer, HER2 Mutation-Related Tumors, HER-2 Protein Overexpression, HER2-negative Breast Cancer, Triple Negative Breast Cancer, HR Positive, Hormone Receptor-positive Breast Cancer, Estrogen Receptor Positive Tumor, Progesterone Receptor-positive Breast Cancer, Hormone Receptor Negative Breast Carcinoma, Solid Tumor, Solid Tumor, Adult, Solid Carcinoma, HER2 Low Breast Cancer, HER2 Low Breast Carcinoma, ER Positive Breast Cancer, PR-positive Breast Cancer
Interventions
ALX148, Fam-Trastuzumab Deruxtecan-Nxki, Zanidatamab, Tucatinib
Drug
Lead sponsor
QuantumLeap Healthcare Collaborative
Other
Eligibility
18 Years and older
Enrollment
124 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
7
States / cities
Birmingham, Alabama • Tampa, Florida • Chicago, Illinois + 4 more
Source: ClinicalTrials.gov public record
Updated Apr 3, 2025 · Synced Jul 23, 2026, 1:30 PM EDT
Completed Phase 1Phase 2 Interventional Results available

A Study of Mirdametinib on Its Own or in Combination With Fulvestrant in People With Solid Tumor Cancer

NCT05054374
View directory record Official record
Conditions
Breast Cancer, Breast Cancer Stage IV, HER2-negative Breast Cancer, Solid Carcinoma, MEK1 Gene Mutation, MEK2 Gene Mutation, Metastatic Breast Cancer
Interventions
Mirdametinib, Fulvestrant
Drug
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
4
States / cities
Middletown, New Jersey • Commack, New York • Harrison, New York + 1 more
Source: ClinicalTrials.gov public record
Updated May 22, 2025 · Synced Jul 23, 2026, 1:30 PM EDT
Recruiting Phase 1Phase 2 Interventional

First-in-Human Study of Tersolisib (STX-478) as Monotherapy and in Combination With Other Antineoplastic Agents in Participants With Advanced Solid Tumors

NCT05768139
View directory record Official record
Conditions
Breast Cancer, Solid Tumors, Adult
Interventions
STX-478, Fulvestrant, Ribociclib, Palbociclib, Letrozole, Anastrozole, Exemestane, Tamoxifen, Abemaciclib, Imlunestrant, Metformin
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Enrollment
880 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2030
U.S. locations
28
States / cities
Los Angeles, California • San Francisco, California • Aurora, Colorado + 22 more
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Jul 23, 2026, 1:30 PM EDT
Recruiting Phase 3 Interventional

A Study to Evaluate Efficacy and Safety of Giredestrant Compared With Fulvestrant (Plus a CDK4/6 Inhibitor), in Participants With ER-Positive, HER2-Negative Advanced Breast Cancer Resistant to Adjuvant Endocrine Therapy (pionERA Breast Cancer)

NCT06065748
View directory record Official record
Conditions
Estrogen Receptor-Positive, HER2-Negative Advanced Breast Cancer
Interventions
Giredestrant, Fulvestrant, Abemaciclib, Palbociclib, Ribociclib, LHRH Agonist, FoundationOne Liquid CDx Assay (F1LCDx)
Drug · Diagnostic Test
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older
Enrollment
1,050 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
61
States / cities
Daphne, Alabama • Auburn, California • Glendale, California + 54 more
Source: ClinicalTrials.gov public record
Updated Jul 5, 2026 · Synced Jul 23, 2026, 1:30 PM EDT
Completed No phase listed Observational

Estrogen Receptor Gene Mutations

NCT00342498
View directory record Official record
Conditions
Mutations, Hormones
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
1994 – 2008
U.S. locations
2
States / cities
Research Triangle Park, North Carolina • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Jul 23, 2026, 1:30 PM EDT
Recruiting Phase 1Phase 2 Interventional

Sapanisertib and Serabelisib (PIKTOR) in Various Combinations in Patients With HR+/HER2- Advanced/Metastatic Breast Cancer

NCT07558733
View directory record Official record
Conditions
HR+ HER2- Breast Cancer
Interventions
Serabelisib, Sapanisertib, Fulvestrant
Drug
Lead sponsor
Faeth Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2033
U.S. locations
7
States / cities
Los Angeles, California • Lone Tree, Colorado • Springfield, Oregon + 3 more
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Jul 23, 2026, 1:30 PM EDT
Terminated Phase 4 Interventional

Effect of HSD3B1 (1245C) Gene Mutation on Treatment of Stage I-III Breast Cancer

NCT05183828
View directory record Official record
Conditions
Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, Breast Adenocarcinoma, Invasive Breast Carcinoma of No Special Type
Interventions
Biospecimen Collection, Letrozole, Questionnaire Administration
Procedure · Drug · Other
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older · Female only
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Jul 23, 2026, 1:30 PM EDT
Not yet recruiting Phase 2 Interventional

Randomized Double-Blind Phase II Trial of Baby Exemestane Versus Baby Tamoxifen in Post-Menopausal Women at High Risk for Breast Cancer

NCT07499999
View directory record Official record
Conditions
Breast Cancer, Ductal Carcinoma, Estrogen-receptor-positive Breast Cancer, Atypical Lobular Hyperplasia, BRCA2 Mutation, CHEK2 Gene Mutation, Ataxia Telangiectasia Mutated Gene Mutation
Interventions
Exemestane, Tamoxifen
Drug
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
Female only
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 29, 2026 · Synced Jul 23, 2026, 1:30 PM EDT
Completed Phase 1 Interventional

A Study of BYL719 in Adult Patients With Advanced Solid Malignancies, Whose Tumors Have an Alteration of the PIK3CA Gene

NCT01219699
View directory record Official record
Conditions
Advanced Solid Tumors With an Alteration of the PIK3CA Gene, Estrogen Receptor Positive Breast Cancer
Interventions
BYL719, Fulvestrant
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
221 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2020
U.S. locations
5
States / cities
San Francisco, California • Boston, Massachusetts • Nashville, Tennessee + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 21, 2020 · Synced Jul 23, 2026, 1:30 PM EDT
Completed Phase 2 Interventional

Evaluation of Lasofoxifene Combined With Abemaciclib in Advanced or Metastatic ER+/HER2- Breast Cancer With an ESR1 Mutation

NCT04432454
View directory record Official record
Conditions
Metastatic Breast Cancer
Interventions
Lasofoxifene and abemaciclib (VERZENIO (R)).
Drug
Lead sponsor
Sermonix Pharmaceuticals Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
16
States / cities
Birmingham, Alabama • Yuma, Arizona • Fountain Valley, California + 12 more
Source: ClinicalTrials.gov public record
Updated Feb 12, 2025 · Synced Jul 23, 2026, 1:30 PM EDT
Completed Early Phase 1 Interventional Results available

Treatment of Metastatic Breast Cancer With Fulvestrant Plus Palbociclib or Tamoxifen Plus Palbociclib

NCT02913430
View directory record Official record
Conditions
Metastatic Breast Cancer
Interventions
Fulvestrant, Tamoxifen, Palbociclib
Drug
Lead sponsor
Shannon Puhalla
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 22, 2024 · Synced Jul 23, 2026, 1:30 PM EDT
Recruiting Phase 2 Interventional

PhII Randomized CAPecitabine + ELAcestrant vs. Capecitabine Alone in ER+ Breast Cancer (CAPELA)

NCT07222215
View directory record Official record
Conditions
Estrogen-receptor-positive Breast Cancer, Metastatic Breast Cancer, Breast Cancer, Hormone Receptor Positive Breast Cancer, Human Epidermal Growth Factor 2 Negative Carcinoma of Breast, HER2- Breast Cancer, ESR1 Gene Mutation, ER Wildtype, Breast Neoplasms
Interventions
Capecitabine, Elacestrant
Drug
Lead sponsor
Kristina A. Fanucci
Other
Eligibility
18 Years and older
Enrollment
297 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 11, 2026 · Synced Jul 23, 2026, 1:30 PM EDT
Active, not recruiting Phase 1 Interventional

mTORC1/2 Inhibitor AZD2014 or the Oral AKT Inhibitor AZD5363 for Recurrent Endometrial and Ovarian

NCT02208375
View directory record Official record
Conditions
BRCA1 Mutation Carrier, BRCA2 Mutation Carrier, Endometrial Adenocarcinoma, Estrogen Receptor Negative, HER2/Neu Negative, High Grade Ovarian Serous Adenocarcinoma, Progesterone Receptor Negative, Recurrent Breast Carcinoma, Recurrent Fallopian Tube Carcinoma, Recurrent Ovarian Carcinoma, Recurrent Primary Peritoneal Carcinoma, Recurrent Uterine Corpus Carcinoma, Stage III Uterine Corpus Cancer AJCC v7, Stage IV Breast Cancer AJCC v6 and v7, Stage IV Uterine Corpus Cancer AJCC v7, Triple-Negative Breast Carcinoma
Interventions
Capivasertib, Laboratory Biomarker Analysis, Olaparib, Pharmacological Study, Vistusertib
Drug · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
159 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2028
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 14, 2026 · Synced Jul 23, 2026, 1:30 PM EDT
Completed Phase 1 Interventional

Veliparib in Treating Patients With Malignant Solid Tumors That Do Not Respond to Previous Therapy

NCT00892736
View directory record Official record
Conditions
Basal-Like Breast Carcinoma, BRCA1 Mutation Carrier, BRCA2 Mutation Carrier, Breast Carcinoma, Estrogen Receptor Negative, HER2/Neu Negative, Hereditary Breast and Ovarian Cancer Syndrome, Ovarian Carcinoma, Pancreatic Carcinoma, Progesterone Receptor Negative, Prostate Carcinoma, Recurrent Breast Carcinoma, Recurrent Fallopian Tube Carcinoma, Recurrent Ovarian Carcinoma, Recurrent Primary Peritoneal Carcinoma, Solid Neoplasm, Triple-Negative Breast Carcinoma
Interventions
Laboratory Biomarker Analysis, Pharmacological Study, Veliparib
Other · Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
19 Years and older
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2017
U.S. locations
7
States / cities
Duarte, California • Los Angeles, California • Sacramento, California + 4 more
Source: ClinicalTrials.gov public record
Updated Jun 28, 2018 · Synced Jul 23, 2026, 1:30 PM EDT
Recruiting Phase 3 Interventional

Evaluation of Lasofoxifene Combined With Abemaciclib Compared With Fulvestrant Combined With Abemaciclib in Locally Advanced or Metastatic ER+/HER2- Breast Cancer With an ESR1 Mutation

NCT05696626
View directory record Official record
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
600 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
Source: ClinicalTrials.gov public record
Updated Jun 21, 2026 · Synced Jul 23, 2026, 1:30 PM EDT
Suspended Not applicable Interventional

Stand up to Cancer: MAGENTA (Making Genetic Testing Accessible)

NCT02993068
View directory record Official record
Conditions
BARD1 Gene Mutation, BRCA1 Gene Mutation, BRCA2 Gene Mutation, BRIP1 Gene Mutation, Estrogen Receptor Negative, HER2/Neu Negative, MLH1 Gene Mutation, MSH2 Gene Mutation, MSH6 Gene Mutation, PALB2 Gene Mutation, PMS2 Gene Mutation, Progesterone Receptor Negative, RAD51C Gene Mutation, RAD51D Gene Mutation, Triple-Negative Breast Carcinoma
Interventions
Educational Intervention, Genetic Counseling, Laboratory Biomarker Analysis, Questionnaire Administration
Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
30 Years and older · Female only
Enrollment
5,200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2026
U.S. locations
2
States / cities
Houston, Texas • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Feb 18, 2026 · Synced Jul 23, 2026, 1:30 PM EDT
Completed Phase 2 Interventional

Evaluation of Lasofoxifene Versus Fulvestrant in Advanced or Metastatic ER+/HER2- Breast Cancer With an ESR1 Mutation

NCT03781063
View directory record Official record
Conditions
Locally Advanced or Metastatic Breast Cancer
Interventions
Lasofoxifene, Fulvestrant
Drug
Lead sponsor
Sermonix Pharmaceuticals Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
42
States / cities
Phoenix, Arizona • Yuma, Arizona • Duarte, California + 36 more
Source: ClinicalTrials.gov public record
Updated Jan 27, 2026 · Synced Jul 23, 2026, 1:30 PM EDT
Recruiting Phase 1Phase 2 Interventional

Elacestrant in Advanced Triple Positive Breast Cancer

NCT07612215
View directory record Official record
Conditions
ER Positive, HER2 Positive Breast Cancer
Interventions
Elacestrant, Trastuzumab, Pertuzumab
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Jul 23, 2026, 1:30 PM EDT
Completed Phase 1 Interventional

Veliparib, Cisplatin, and Vinorelbine Ditartrate in Treating Patients With Recurrent and/or Metastatic Breast Cancer

NCT01104259
View directory record Official record
Conditions
Estrogen Receptor-negative Breast Cancer, HER2-negative Breast Cancer, Hereditary Breast/Ovarian Cancer - BRCA1, Hereditary Breast/Ovarian Cancer - BRCA2, Male Breast Cancer, Progesterone Receptor-negative Breast Cancer, Recurrent Breast Cancer, Stage IV Breast Cancer, Triple-negative Breast Cancer
Interventions
veliparib, cisplatin, vinorelbine tartrate, laboratory biomarker analysis, pharmacological study
Drug · Other
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2017
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Aug 9, 2017 · Synced Jul 23, 2026, 1:30 PM EDT
Recruiting Not applicable Interventional

A Study of Changes in Ki67 Expression in People With Breast Cancer Receiving Endocrine Therapy Before Surgery

NCT06127979
View directory record Official record
Conditions
Breast Cancer
Interventions
core needle biopsy, blood draw
Procedure · Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 1, 2026 · Synced Jul 23, 2026, 1:30 PM EDT
Terminated Phase 1 Interventional

Open-label Phase 1b Study of ARQ 092 in Combination With Anastrozole

NCT02476955
View directory record Official record
Conditions
Solid Tumors, Ovarian Cancer, Endometrial Cancer
Interventions
ARQ 092 + carboplatin + paclitaxel (Closed), ARQ 092 + paclitaxel (Closed), ARQ 092 + anastrozole
Drug
Lead sponsor
ArQule, Inc., a subsidiary of Merck Sharp & Dohme LLC, a subsidiary of Merck & Co., Inc. (Rahway, NJ USA)
Industry
Eligibility
18 Years and older · Female only
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
5
States / cities
Grand Rapids, Michigan • New York, New York • Oklahoma City, Oklahoma + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 29, 2020 · Synced Jul 23, 2026, 1:30 PM EDT
Active, not recruiting Phase 1 Interventional

Vaccine Therapy and Pembrolizumab in Treating Patients With Solid Tumors That Have Failed Prior Therapy

NCT02432963
View directory record Official record
Conditions
Adult Solid Neoplasm, Bladder Carcinoma, Colon Carcinoma, Estrogen Receptor Negative, Head and Neck Squamous Cell Carcinoma, Hepatocellular Carcinoma, HER2/Neu Negative, Melanoma, Non-Small Cell Lung Carcinoma, Pancreatic Carcinoma, Progesterone Receptor Negative, Rectal Carcinoma, Renal Cell Carcinoma, Soft Tissue Sarcoma, Triple-Negative Breast Carcinoma, TP53 Gene Mutation, Unresectable Solid Neoplasm
Interventions
Laboratory Biomarker Analysis, Modified Vaccinia Virus Ankara Vaccine Expressing p53, Pembrolizumab
Other · Biological
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2026
U.S. locations
1
States / cities
Duarte, California
Source: ClinicalTrials.gov public record
Updated Jan 27, 2026 · Synced Jul 23, 2026, 1:30 PM EDT