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Breast Cancer clinical trials in Fullerton, CA
9 studies for Breast Cancer are looking for participants at sites in and around Fullerton (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
- Providence Medical Foundation, Fullerton
A Study of Sacituzumab Tirumotecan (MK-2870) as a Single Agent and in Combination With Pembrolizumab (MK-3475) Versus Treatment of Physician's Choice in Participants With HR+/HER2- Unresectable Locally Advanced or Metastatic Breast Cancer (MK-2870-010)
RecruitingPhase 3
- Providence Medical Foundation-Oncology ( Site 0020), Fullerton
A Clinical Study of Sacituzumab Tirumotecan (Sac-TMT, MK-2870) in People With Breast Cancer (MK-2870-032)
RecruitingPhase 3
- Providence Medical Foundation ( Site 0080), Fullerton
Study of Abemaciclib and Elacestrant in Participants With Brain Metastasis Due to ER+/HER-2- Breast Cancer
RecruitingPhase 1/2
- Providence Medical Foundation, Fullerton
Phase 3 Study to Evaluate the Efficacy and Safety of HER2/Neu Peptide GLSI-100 (GP2 + GM-CSF) in HER2/Neu Positive Subjects
RecruitingPhase 3
- Providence St. Jude Medical Center - Virginia K. Crosson Cancer Center, Fullerton
E-Mindfulness Approaches for Living After Breast Cancer
RecruitingPhase 3
- UCI Health - Yorba Linda, Yorba Linda · 7 mi away
Phase 3 Study of Gedatolisib as First-Line Treatment for Patients With HR-Positive, HER2-Negative Advanced Breast Cancer (VIKTORIA-2)
RecruitingPhase 3
- Providence Medical Foundation, Fullerton
Comparative Effectiveness Trial of Two Supportive Cancer Care Delivery Models for Adults With Cancer
Recruiting
- St Jude Heritage Medical Group, Fullerton
Trastuzumab Deruxtecan Alone or in Combination With Anastrozole for the Treatment of Early Stage HER2 Low, Hormone Receptor Positive Breast Cancer
RecruitingPhase 2
- St. Joseph Heritage Healthcare, Fullerton
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, NY136 studies
- Houston, TX126 studies
- Boston, MA112 studies
- Nashville, TN81 studies
- Los Angeles, CA73 studies
- Edison, NJ68 studies
- St. Louis, MO64 studies
- Queens, NY64 studies
- Durham, NC64 studies
- Chicago, IL59 studies
- Philadelphia, PA56 studies
- Dallas, TX55 studies
Other studies in Fullerton
- Non-Small Cell Lung Cancer13 studies
- Ovarian Cancer6 studies
- Lupus5 studies
- Cancer (all types)5 studies
- Lung Cancer4 studies
- Pancreatic Cancer4 studies
- Stomach Cancer3 studies
- Esophageal Cancer3 studies
- Melanoma3 studies
- Head and Neck Squamous Cell Carcinoma3 studies
- Schizophrenia3 studies
- Colorectal Cancer3 studies
From ClinicalTrials.gov, data retrieved Oct 6, 2026. Each study sets its own eligibility; the study team decides who can join.