40 Breast Cancer Clinical Trials in Duarte, CA (2026)

Q: How do I join a clinical trial in Duarte?

Browse available studies, click one that interests you, and complete the free eligibility form. A study coordinator at the Duarte research site will contact you.

Recruiting Breast Cancer Studies in Duarte

NCT01042379Recruiting

I-SPY TRIAL: Neoadjuvant and Personalized Adaptive Novel Agents to Treat Breast Cancer

The purpose of this study is to further advance the ability to practice personalized medicine by learning which new drug agents are most effective with which types of breast cancer tumors and by learn...

Duarte, CAPHASE25,000 participantsQuantumLeap Healthcare Collaborative

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NCT05232916Recruiting

Phase 3 Study to Evaluate the Efficacy and Safety of HER2/Neu Peptide GLSI-100 (GP2 + GM-CSF) in HER2/Neu Positive Subjects

This is a prospective, randomized, double-blinded, placebo-controlled, multi-center, Phase 3 study of GLSI-100 immunotherapy in HLA-A\*02 positive and HER2/neu positive subjects who are at high risk f...

Duarte, CAPHASE32,250 participantsGreenwich LifeSciences, Inc.

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NCT05827081Recruiting

Phase IIIb Study of Ribociclib + ET in Early Breast Cancer

The purpose of this open-label, multicenter, phase IIIb, single-arm study is to characterize the efficacy and safety of the combination of ribociclib and standard adjuvant endocrine therapy (ET) on in...

Duarte, CAPHASE31,400 participantsNovartis Pharmaceuticals

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NCT06757634Recruiting

Phase 3 Study of Gedatolisib as First-Line Treatment for Patients With HR-Positive, HER2-Negative Advanced Breast Cancer (VIKTORIA-2)

This is a Phase 3, open-label, randomized, clinical trial evaluating the efficacy and safety of gedatolisib plus fulvestrant and CDK4/6 Inhibitors for the treatment of patients with locally advanced o...

Duarte, CAPHASE31,180 participantsCelcuity Inc

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NCT03424005Recruiting

A Study Evaluating the Efficacy and Safety of Multiple Treatment Combinations in Patients With Metastatic or Locally Advanced Breast Cancer

This is an umbrella study evaluating the efficacy and safety of multiple treatment combinations in participants with metastatic or inoperable locally advanced breast cancer. The study will be perform...

Duarte, CAPHASE11,132 participantsHoffmann-La Roche

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NCT06841354Recruiting

A Study of Sacituzumab Tirumotecan (Sac-TMT, MK-2870) as Monotherapy and in Combination With Pembrolizumab (MK-3475) in Participants With Triple-Negative Breast Cancer (MK-2870-011/TroFuse-011)

Researchers want to know if sacituzumab tirumotecan given alone or with pembrolizumab can treat triple negative breast cancer (TNBC). The main goal of this study is to learn if people treated with sac...

Duarte, CAPHASE31,000 participantsMerck Sharp & Dohme LLC

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NCT07174336Recruiting

A Study of LY4064809 With Other Anti-Cancer Treatments in Participants With Advanced Breast Cancer With a Genetic Change (PIK3CA)

The purpose of the study is to assess the efficacy and safety of the addition of LY4064809 to other anti-cancer drugs as first treatment for advanced hormone receptor-positive (HR+)/human epidermal gr...

Duarte, CAPHASE3800 participantsEli Lilly and Company

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NCT05356741Recruiting

To Access the Safety and Effects of Intravenous Administration of VIR-5818 Alone and in Combination With Pembrolizumab in Adult Participants With Locally Advanced or Metastatic HER2-Expressing Cancers

This first-in-human (FIH) Phase 1 open-label multicenter dose-escalation and dose-expansion study is designed to evaluate the safety, pharmacokinetics, and preliminary activity of VIR-5818 (Formerly A...

Duarte, CAPHASE1645 participantsVir Biotechnology, Inc.

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NCT06103864Recruiting

A Phase III Study of Dato-DXd With or Without Durvalumab Compared With Investigator's Choice of Chemotherapy in Combination With Pembrolizumab in Patients With PD-L1 Positive Locally Recurrent Inoperable or Metastatic Triple-negative Breast Cancer

This is a Phase III, randomised, open-label, 3-arm, multicentre, international study assessing the efficacy and safety of Dato-DXd with or without durvalumab compared with investigator's choice chemot...

Duarte, CAPHASE3625 participantsAstraZeneca

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NCT07287098Recruiting

A Study of Imlunestrant (LY3484356) in Premenopausal Women With Estrogen Receptor-Positive (ER+) Human Epidermal Growth Factor Receptor 2 Negative (HER2-) Early Breast Cancer

This study will include two groups of patients: Cohort 1 and Cohort 2. Cohort 1: will help researchers learn how a medicine called imlunestrant (LY3484356) affects a specific type of breast cancer. S...

Duarte, CAPHASE2600 participantsEli Lilly and Company

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NCT06982521Recruiting

Phase 3 Study of RLY-2608 + Fulvestrant vs Capivasertib + Fulvestrant as Treatment for Locally Advanced or Metastatic PIK3CA-mutant HR+/HER2- Breast Cancer

This is a global, multicenter, open-label, randomized Phase 3 study comparing the efficacy and safety of RLY-2608 + fulvestrant to capivasertib + fulvestrant for the treatment of patients with HR+/HER...

Duarte, CAPHASE3540 participantsRelay Therapeutics, Inc.

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NCT03418961Recruiting

S1501 Carvedilol in Preventing Cardiac Toxicity in Patients With Metastatic HER-2-Positive Breast Cancer

This phase III trial studies how well carvedilol works in preventing cardiac toxicity in patients with human epidermal growth factor receptor (HER)-2-positive breast cancer that has spread to other pl...

Duarte, CAPHASE3491 participantsSWOG Cancer Research Network

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NCT07690852Recruiting

Environmental Exposure Assessment in High-Risk and Early-Onset Breast Cancer Care

This study evaluates patient and provider attitudes about environmental exposure risk assessments into clinical care for female patients at average or high risk for breast cancer and/or diagnosed with...

Duarte, CA423 participantsCity of Hope Medical Center

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NCT07114601Recruiting

A Study of LY4257496 in Participants With Cancer (OMNIRAY)

The main purpose of this study is to evaluate safety, tolerability, and efficacy of LY4257496 alone and as part of relevant standard of care (SOC) combination therapy in participants with Gastrin-rele...

Duarte, CAPHASE1421 participantsEli Lilly and Company

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NCT06075953Recruiting

DCIS: RECAST Trial Ductal Carcinoma In Situ: Re-Evaluating Conditions for Active Surveillance Suitability as Treatment

The goal of this trial is to see if active surveillance monitoring and hormonal therapy in patients diagnosed with ductal cell carcinoma in situ (DCIS), an early stage of breast cancer, can be an effe...

Duarte, CAPHASE2400 participantsQuantumLeap Healthcare Collaborative

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NCT07029399Recruiting

A Study With NKT5097 for Adults With Advanced/Metastatic Solid Tumors

The goal of this open-label dose escalation and expansion study is to evaluate the safety and tolerability of NKT5097 in adults with advanced/metastatic tumors (emphasis on breast cancer and solid tum...

Duarte, CAPHASE1361 participantsNiKang Therapeutics, Inc.

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NCT04802759Recruiting

A Study Evaluating the Efficacy and Safety of Multiple Treatment Combinations in Participants With Breast Cancer

This is a Phase Ib/II, open-label, multicenter, randomized umbrella study in participants with breast cancer. The study is designed with the flexibility to open new treatment arms as new treatments be...

Duarte, CAPHASE1316 participantsHoffmann-La Roche

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NCT07100106Recruiting

A Study to Evaluate the Effect of GDC-4198 Alone and in Combination With Giredestrant Versus Abemaciclib and Giredestrant in Participants With Locally Advanced or Metastatic Estrogen Receptor-Positive (ER+), Human Epidermal Growth Factor Receptor-Negative (HER2-) Breast Cancer

The purpose of this study is to assess the safety of GDC-4198 alone and in combination with giredestrant and also the efficacy of GDC-4198 + giredestrant versus abemaciclib + giredestrant in participa...

Duarte, CAPHASE1285 participantsGenentech, Inc.

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NCT07318805Recruiting

A Study to Learn About the Study Medicine Called PF-08032562 in People With Advanced or Metastatic Solid Tumors

The purpose of this study is to learn about the safety and effects of the study medicine when given alone or together with other anti-cancer therapies. Anti-cancer therapy is a type of treatment to st...

Duarte, CAPHASE1260 participantsPfizer

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NCT06638307Recruiting

A First-in-Human Study of MEN2312 in Adults With Advanced Breast Cancer

This is a first-in-human study of MEN2312, a lysine acetyltransferase 6 (KAT6) inhibitor, in adult participants with advanced breast cancer....

Duarte, CAPHASE1240 participantsStemline Therapeutics, Inc.

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NCT05894239Recruiting

A Study to Evaluate the Efficacy and Safety of Inavolisib in Combination With Phesgo Versus Placebo in Combination With Phesgo in Participants With PIK3CA-Mutated HER2-Positive Locally Advanced or Metastatic Breast Cancer

This study will evaluate the efficacy and safety of inavolisib in combination with Phesgo (pertuzumab, trastuzumab, and rHuPH20 injection for subcutaneous use) compared with placebo in combination wit...

Duarte, CAPHASE3230 participantsHoffmann-La Roche

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NCT06042569Recruiting

Dose-Reduced Docetaxel With Cyclophosphamide for the Treatment of Vulnerable Older Women With Stage I-III HER2 Negative Breast Cancer, the DOROTHY Trial

This phase II trial tests how well dose-reduced docetaxel combined with cyclophosphamide works in treating older women with early stage (stage I-III) HER2 negative breast cancer vulnerable to toxicity...

Duarte, CAPHASE2174 participantsCity of Hope Medical Center

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NCT07664579Recruiting

Investigating the Feasibility and Acceptability of an Innovative Interdisciplinary Supportive Care Program: Couples Coping Together Against Cancer

This study evaluates how useful and acceptable the components of the "Couples Coping Together Against Cancer", referred to as "The Program", are to the participants with cancer....

Duarte, CA160 participantsCity of Hope Medical Center

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NCT07647328Recruiting

A Phase IIIb Study to Evaluate Camizestrant Plus Ribociclib in ER-positive, HER2-negative Advanced Breast Cancer

The purpose of this study is to investigate the efficacy, safety, and tolerability of camizestrant in combination with ribociclib in patients with ER+ HER2- BC who have not received any other systemic...

Duarte, CAPHASE3150 participantsAstraZeneca

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NCT07741968Recruiting

A Blended e-Health Intervention to Improve Fear of Progression in Women With Gynecologic or Breast Cancer

This clinical trial studies whether an intervention supported by technology (blended e-health intervention) works to improve fear of progression (FOP) in women with gynecologic or breast cancer. FOP i...

Duarte, CANA126 participantsCity of Hope Medical Center

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NCT06764940Recruiting

A Pivotal Phase II Clinical Trial of Utidelone Injection Plus Capecitabine in HER2-negative Breast Cancer Patients With Brain Metastases

This study is a multicenter, two-stage clinical trial to evaluate the efficacy and safety of utidelone in combination with capecitabine in patients with HER2-negative breast cancer with brain metastas...

Duarte, CAPHASE2120 participantsBiostar Pharma, Inc.

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NCT07007559Recruiting

ASPEN-09-03: A Study of Evorpacept in Combination With Trastuzumab and Chemotherapy in Metastatic HER2-Positive Breast Cancer

The Substudy Protocol ASPEN-09-03 is a Phase 2, single-arm, multicenter study evaluating the efficacy, safety, and tolerability of evorpacept in combination with trastuzumab and chemotherapy in partic...

Duarte, CAPHASE2120 participantsALX Oncology Inc.

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NCT06966453Recruiting

A Study of Disitamab Vedotin in Adults With HER2 Expressing Advanced Breast Cancer

The purpose of this clinical study is to learn about the safety and effects of the study medicine (called disitamab vedotin) for the possible treatment of people with breast cancer that is hard to tre...

Duarte, CAPHASE1100 participantsPfizer

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NCT05595499Recruiting

Fisetin to Improve Physical Function in Stage I-III Breast Cancer Survivors

This phase II trial tests whether fisetin works to improve physical function in women who have received chemotherapy for stage I-III breast cancer treatment. Fisetin is a naturally occurring substance...

Duarte, CAPHASE288 participantsJonsson Comprehensive Cancer Center

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NCT06954831Recruiting

Ultra-hypofractionated Whole Breast Irradiation With Lumpectomy Cavity Boost for the Treatment of Stage I-III Breast Cancer

This 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 cancer. Breast conser...

Duarte, CAPHASE282 participantsCity of Hope Medical Center

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NCT05941520Recruiting

Acolbifene Versus Low Dose Tamoxifen for the Prevention of Breast Cancer in Premenopausal Women at High Risk for Development of Breast Cancer

This phase IIA trial compares the effect of acolbifene versus low dose tamoxifen in preventing breast cancer in premenopausal women at high risk for developing breast cancer. The usual approach for pa...

Duarte, CAPHASE280 participantsNational Cancer Institute (NCI)

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NCT06763328Recruiting

Metformin for the Treatment of Insulin Resistance in Women With Stage I-III Breast Cancer Completing Chemotherapy

This phase III trial evaluates how often women develop insulin resistance and type-2 diabetes and compares metformin with usual care to usual care alone in treating insulin resistance in women with st...

Duarte, CAPHASE380 participantsCity of Hope Medical Center

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NCT04020575Recruiting

Autologous huMNC2-CAR44 or huMNC2-CAR22 T Cells for Breast Cancer Targeting Cleaved Form of MUC1 (MUC1*)

Phase I/II study of adoptive immunotherapy for advanced MUC1\* positive breast cancer with autologous T cells engineered to express either a chimeric antigen receptor, huMNC2-CAR44 or huMNC2-CAR22, wh...

Duarte, CAPHASE169 participantsMinerva Biotechnologies Corporation

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NCT06908928Recruiting

A Dose Randomization Study of Bulumtatug Fuvedotin in TNBC Patients Previously Treated With ADCs

The goal of this clinical trial is to investigate if treatment with bulumtatug fuvedotin is effective in triple-negative breast cancer patients who have previously received treatment with an antibody-...

Duarte, CAPHASE152 participantsMabwell (Shanghai) Bioscience Co., Ltd.

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NCT04305834Recruiting

Abemaciclib and Endocrine Therapy in Older Patients With Breast Cancer.

This phase IIa trial studies the side effects of abemaciclib monotherapy in treating patients age 70 years and older with hormone receptor positive, HER2 negative breast cancer that has spread to othe...

Duarte, CAPHASE243 participantsCity of Hope Medical Center

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NCT04913064Recruiting

Effects of White Button Mushroom on Inflammation in Obese Postmenopausal Women at High Risk of Breast Cancer

This clinical trial studies the effects of dietary white button mushroom on inflammation (the body's process of fighting against harmful things) and immune cells (white blood cells) in postmenopausal ...

Duarte, CANA26 participantsCity of Hope Medical Center

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NCT06130826Recruiting

Immune Response Activation for the Treatment of Unresectable Metastatic Colorectal Cancer or CEA Positive Metastatic Breast Cancer

This phase I trial studies the side effects and best dose of M5A-IL2 immunocytokine (M5A-ICK) combined with stereotactic body radiation therapy (SBRT) and to see how well they work in treating patient...

Duarte, CAPHASE124 participantsCity of Hope Medical Center

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NCT06260033Recruiting

Stereotactic Body Radiation Therapy and FES PET/CT Imaging for the Treatment of Oligoprogressive Estrogen Receptor Positive Metastatic Breast Cancer

This phase II trial tests how well stereotactic body radiation therapy (SBRT) works in treating patients with estrogen receptor positive (ER +) breast cancer that has spread from where it first starte...

Duarte, CAPHASE218 participantsCity of Hope Medical Center

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NCT06860815Recruiting

Cemiplimab and Transarterial Radioembolization With Y-90 SIR-S Spheres for the Treatment of Liver Directed Metastatic Breast Cancer

This phase II trial tests how well cemiplimab and transarterial radioembolization (TARE) with yttrium-90 (Y90) SIR-Spheres, registered trademark, works in treating breast cancer that has spread from w...

Duarte, CAPHASE211 participantsCity of Hope Medical Center

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NCT05376878Recruiting

An Investigational Scan (64Cu-DOTA-Trastuzumab PET/MRI) in Imaging Patients With HER2+ Breast Cancer With Brain Metastasis

This clinical trial examines an investigational scan (64Cu-DOTA-trastuzumab positron emission tomography \[PET\]/magnetic resonance imaging \[MRI\]) in imaging patients with HER2+ breast cancer that h...

Duarte, CAPHASE410 participantsCity of Hope Medical Center

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About Breast Cancer Clinical Trials in Duarte

Breast cancer is a disease in which cells in the breast grow out of control. It is the most common cancer in women worldwide and can also occur in men. Treatment options include surgery, radiation, chemotherapy, hormone therapy, and targeted therapies.

There are currently 40 breast cancer clinical trials recruiting participants in Duarte, CA. These studies are seeking a combined 20,132 participants. Research is being sponsored by QuantumLeap Healthcare Collaborative, Greenwich LifeSciences, Inc., Novartis Pharmaceuticals and 19 other organizations. Clinical trial participation is free and participants receive study-related medical care at no cost.

Breast Cancer Clinical Trials in Duarte — FAQ

Are there breast cancer clinical trials in Duarte?

Yes, there are 40 breast cancer clinical trials currently recruiting in Duarte, CA. Browse the studies on this page to find one that fits.

How do I join a clinical trial in Duarte?

Browse the studies listed above, click one that interests you, and complete the free eligibility form. A study coordinator at the Duarte research site will contact you about next steps.

Are clinical trials in Duarte free?

Yes, clinical trial participation is always free. Study-related treatment, medical tests, and doctor visits are provided at no cost. Many Duarte studies also compensate for your time and travel.

What breast cancer treatments are being tested?

The 40 active trials in Duarte are testing new therapies including novel drugs, biologics, and treatment approaches for breast cancer.

Data updated September 2, 2026 from ClinicalTrials.gov