About Pricing FAQs Providers Trials Blog

Login Get started

Finding studies

Your health journey, clearly organized.

Questions? feedback@clareohealth.com

Product

How it works
Pricing
For Providers
Trials

Company

About
Blog
FAQ

Legal

Privacy Policy
Terms of Service

© 2026 Clareo Health. All rights reserved.

Clareo Health | Breast Cancer Clinical Trials in California | 1,848 Studies

Clinical Trials Breast CancerCalifornia

Breast Cancer Clinical Trials in California

Find 1,848 clinical trials for breast cancer near California. Connect with research centers in your area.

All Breast Cancer trials nationwide All trials in California

Order

Status

RecruitingNot yet recruitingActive, not recruitingEnrolling by invitationCompletedTerminated

Phase

Early phase 1Phase 1Phase 1–2Phase 2Phase 2–3Phase 3Phase 4No phase

Who can join

Healthy volunteers too

Showing 841-860 of 1,848 trials

CompletedStudy of 68Ga-R10602A phase 1 imaging study of 68Ga-R10602 in hormone-receptor positive breast cancer.NCT06745804·Los Angeles, California and 5 others Active not recruitingA Study to Evaluate the Efficacy and Safety of Giredestrant in Combination With Phesgo (Pertuzumab, Trastuzumab, and Hyaluronidase-zzxf) Versus Phesgo in Participants With Locally Advanced or Metastatic Breast Cancer (heredERA Breast Cancer)This Phase III, randomized, two-arm, open-label, multicenter study will evaluate the efficacy and safety of giredestrant plus Phesgo compared with Phesgo after induction therapy…NCT05296798·Tucson, Arizona and 197 others

Breast Cancer Trials in Other Cities

New York Los Angeles Chicago Houston Phoenix Philadelphia

Data from ClinicalTrials.govTerms

CompletedOpen-Label, Phase 1 Study to Evaluate Duration of Severe Neutropenia After Same-Day Dosing of Eflapegrastim in Patients With Breast-CancerThe purpose of this study is to compare the effect of Eflapegrastim on duration of neutropenia in patients with early-stage breast cancer when administered at varying intervals…NCT04187898·Tucson, Arizona and 7 others

WithdrawnSafety and Efficacy of Sentinel Node Biopsy Omission for Breast Cancer Patients Who Plan to Have Adjuvant ChemotherapyEligible patients will be female, ages 18 and older and have a diagnosis of Clinical T1 or T2 invasive breast cancer with no suspicious palpable adenopathy.NCT02610621·Los Angeles, California

CompletedPatientCareAnywhere Internet-Based Software in Improving Communication and Education in Patients With Cancer and Their Healthcare ProvidersThis partially randomized pilot clinical trial develops and studies a software program, called PatientCareAnywhere, to see whether it can help patients communicate with their…NCT02408406·Duarte, California

RecruitingImproving Survival for Metastatic Lobular Breast Cancer (PLUMB Registry)This is a prospective observational registry for patients with invasive lobular carcinoma (ILC) of the breast.NCT05964504·San Diego, California and 3 others

TerminatedOpen-Label, Dose-Escalation Study of Pemigatinib in Subjects With Advanced Malignancies - (FIGHT-101)The purpose of this study will be to evaluate the safety, tolerability, and pharmacological activity of pemigatinib in subjects with advanced malignancies.NCT02393248·Birmingham, Alabama and 19 others

TerminatedGEN1047 for Solid Tumors - First in Human (FIH) TrialThe purpose of this trial is to measure the following in participants with solid tumors who receive GEN1047: * The side effects seen with GEN1047 * What the body does with…NCT05180474·Los Angeles, California and 35 others

RecruitingPrevention of Frailty With Fisetin and Exercise in Breast Cancer SurvivorsThis phase II trial tests how well fisetin and exercise works in preventing frailty in breast cancer survivors.NCT06113016·Alhambra, California and 5 others

CompletedBicalutamide in Treating Patients With Metastatic Breast CancerRATIONALE: Androgens can cause the growth of breast cancer cells. Antihormone therapy, such as bicalutamide, may stop the adrenal glands from making androgens.NCT00468715·San Francisco, California and 7 others

CompletedSulindac and Breast Density in Women at Risk of Developing Breast CancerThe primary objective of this study is to determine if sulindac at a dose of 150 mg twice a day for 12 months reduces breast density in postmenopausal women at elevated risk of…NCT04542135·Los Angeles, California and 1 other

CompletedCombination Chemotherapy in Treating Women With Stage I, Stage II, or Stage IIIA (cT1-3, N0-1, M0) Breast Cancer and Positive Axillary Lymph NodesRATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die.NCT00003782·Huntsville, Alabama and 156 others

Active not recruitingPhase IIB Trial of Bazedoxifene Plus Conjugated EstrogensWomen at risk for development of breast cancer and experiencing vasomotor menopausal symptoms (hot flashes) will be randomized to bazedoxifene (BZA) plus conjugated estrogens (CE)…NCT04821141·Duarte, California and 5 others

Active not recruitingFirst-Time-in-Human Study of GSK4381562 in Participants With Advanced Solid TumorsThis is a first time in-human (FTIH) study designed to investigate the safety, tolerability, pharmacokinetics (PK), and immunogenicity of remzistotug in participants with select…NCT05277051·San Francisco, California and 25 others

RecruitingUltra-hypofractionated Whole Breast Irradiation With Lumpectomy Cavity Boost for the Treatment of Stage I-III Breast CancerThis clinical trial tests how well ultra-hypofractionated (UF) whole breast irradiation (WBI) with lumpectomy cavity boost (CB) works in treating patients with stage I-III breast…NCT06954831·Arcadia, California and 6 others

CompletedA Study of XmAb®22841 Monotherapy & in Combination w/ Pembrolizumab in Subjects w/ Selected Advanced Solid TumorsThis is a Phase 1, multiple dose, ascending-dose escalation study and expansion study designed to define a maximum tolerated dose and/or recommended dose of XmAb22841 monotherapy…NCT03849469·Encinitas, California and 27 others

CompletedA Study Of PF-06647020 For Adult Patients With Advanced Solid TumorsTo assess the safety and tolerability at increasing dose levels of PF-06647020 in patients with advanced solid tumors in order to determine the maximum tolerated dose and select…NCT02222922·Birmingham, Alabama and 16 others

CompletedExpanding Rural Access: Distance Delivery of SupportThe major goal of this project is to test the feasibility and acceptability of using videoconferencing to provide support groups led by trained facilitators to rural women with…NCT00186511·Stanford, California

CompletedA Multi-center Randomized Control Cross-over Study to Evaluate the Safety and Effectiveness of the Dayspring Active Wearable Compression Device vs. an Advanced Pneumatic Compression Device for Treating Breast Cancer Related LymphedemaTo evaluate the Dayspring Active Wearable Compression Device in contrast to an advanced pneumatic compression device (APCD)NCT04908254·Los Altos, California and 1 other

CompletedA Phase 3 Randomized, Placebo-controlled Trial of Carboplatin and Paclitaxel With or Without Veliparib (ABT-888) in HER2-negative Metastatic or Locally Advanced Unresectable BRCA-associated Breast CancerThe primary objective of the study is to assess the progression-free survival (PFS) of veliparib in combination with carboplatin and paclitaxel (C/P) compared to placebo plus C/P…NCT02163694·Gilbert, Arizona and 218 others

PreviousPage 43 of 93Next

Other Conditions in California

Lung Cancer Prostate Cancer Colorectal Cancer Melanoma Leukemia Lymphoma