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Breast Cancer clinical trials in Orange, CA
14 studies for Breast Cancer are looking for participants at sites in and around Orange (within about 30 miles). Open a study to see who can join and how to contact the study team.
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Phase IIIb Study of Ribociclib + ET in Early Breast Cancer
RecruitingPhase 3
- UC Irvine Medical Center, Orange
Beamion BCGC-1: A Study to Find a Suitable Dose of Zongertinib Used Alone and in Combination With Other Treatments to Test Whether it Helps People With Different Types of HER2+ Cancer That Has Spread
RecruitingPhase 1/2
- University of California Irvine, Orange
A Study to Test Inavolisib Treatments in Participants With Early-Stage, PIK3CA-Mutated Breast Cancer
RecruitingPhase 2
- Community Clinical Trials, Orange
ASPEN-09-03: A Study of Evorpacept in Combination With Trastuzumab and Chemotherapy in Metastatic HER2-Positive Breast Cancer
RecruitingPhase 2
- UC Irvine Health - Chao Family Comprehensive Cancer Center, Orange
A Study of Tersolisib (LY4064809/STX-478) With Other Anti-Cancer Treatments in Participants With Advanced Breast Cancer With a Genetic Change (PIK3CA)
RecruitingPhase 3
- University of California, Irvine (UCI) Health - UC Irvine Medical Center, Orange
A Study of Elacestrant Versus Standard Endocrine Therapy in Women and Men With ER+,HER2-, Early Breast Cancer With High Risk of Recurrence
RecruitingPhase 3
- UC Irvine Health, Chao Family Comprehensive Cancer Center, Orange
Evaluating the Addition of Adjuvant Chemotherapy to Ovarian Function Suppression Plus Endocrine Therapy in Premenopausal Patients With pN0-1, ER-Positive/HER2-Negative Breast Cancer and an Oncotype Recurrence Score Less Than or Equal to 25
RecruitingPhase 3
- UC Irvine Health/Chao Family Comprehensive Cancer Center, Orange
E-Mindfulness Approaches for Living After Breast Cancer
RecruitingPhase 3
- UC Irvine Health/Chao Family Comprehensive Cancer Center, Orange
Repurposing Riluzole for Cancer-Related Cognitive Impairment: A Pilot Trial
RecruitingPhase 2
- Chao Family Comprehensive Cancer Center, University of California Irvine, Orange
A Study of Emiltatug Ledadotin (Emi-Le) in Participants With Solid Tumors
RecruitingPhase 1/2
- UC Irvine Health-Chao Family Comprehensive Cancer Center, Orange
De-Escalation of Breast Radiation Trial for Hormone Sensitive, HER-2 Negative, Oncotype Recurrence Score Less Than or Equal to 18 Breast Cancer (DEBRA)
RecruitingPhase 3
- Saint Joseph Hospital - Orange, Orange
- UC Irvine Health/Chao Family Comprehensive Cancer Center, Orange
Anastrazole, Fulvestrant & Abemaciclib for HR+HER2- Metastatic Breast Cancer
RecruitingPhase 2
- Chao Family Comprehensive Cancer Center, University of California, Irvine, Orange
Riluzole For Preventing Cognitive Dysfunction in Ca Pts Receiving Chemo (REFOCUS): Pilot Trial
RecruitingPhase 2
- Chao Family Comprehensive Cancer Center, University of California Irvine, Orange
SYNERGY-AI: Artificial Intelligence Based Precision Oncology Clinical Trial Matching and Registry
RecruitingObservational study
- Massive Bio SYNERGY-AI site, Orange
About Breast Cancer
Breast cancer is a cancer that starts in the breast tissue, when cells change and grow out of control. These extra cells can form a mass called a tumor.
More about Breast Cancer on MedlinePlus
Breast Cancer trials in other cities
- New York City, NY134 studies
- Houston, TX126 studies
- Boston, MA111 studies
- Nashville, TN80 studies
- Los Angeles, CA72 studies
- Edison, NJ68 studies
- St. Louis, MO64 studies
- Durham, NC63 studies
- Queens, NY63 studies
- Chicago, IL58 studies
- Philadelphia, PA56 studies
- Dallas, TX55 studies
Other studies in Orange
- Non-Small Cell Lung Cancer25 studies
- Metastatic Cancer20 studies
- Colorectal Cancer16 studies
- Ovarian Cancer16 studies
- Pancreatic Cancer15 studies
- Lung Cancer14 studies
- Prostate Cancer14 studies
- Liver Cancer (Hepatocellular Carcinoma)14 studies
- Melanoma14 studies
- Acute Myeloid Leukemia13 studies
- Cancer (all types)13 studies
- Stomach Cancer13 studies
From ClinicalTrials.gov, data retrieved Oct 5, 2026. Each study sets its own eligibility; the study team decides who can join.