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Breast Cancer clinical trials in Santa Maria, CA
5 studies for Breast Cancer are looking for participants at sites in and around Santa Maria (within about 30 miles). Open a study to see who can join and how to contact the study team.
Recruiting for a study here? Feature it at the top of this page — $99 for 30 days →
Collecting Blood Samples From Patients With and Without Cancer to Evaluate Tests for Early Cancer Detection
RecruitingObservational studyHealthy volunteers welcome
- Mission Hope Medical Oncology - Santa Maria, Santa Maria
- Mission Hope Medical Oncology - Arroyo Grande, Arroyo Grande · 14 mi away
- PCR Oncology, Arroyo Grande · 14 mi away
- and 1 more
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
- Mission Hope Medical Oncology - Santa Maria, Santa Maria
- Mission Hope Medical Oncology - Arroyo Grande, Arroyo Grande · 14 mi away
- PCR Oncology, Arroyo Grande · 14 mi away
- and 1 more
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
- Mission Hope Medical Oncology - Santa Maria, Santa Maria
- Mission Hope Medical Oncology - Arroyo Grande, Arroyo Grande · 14 mi away
- PCR Oncology, Arroyo Grande · 14 mi away
- and 1 more
Assessing Benefits and Harms of Cannabis/Cannabinoid Use Among Cancer Patients Treated in Community Oncology Clinics
RecruitingObservational study
- Mission Hope Medical Oncology - Santa Maria, Santa Maria
- Mission Hope Medical Oncology - Arroyo Grande, Arroyo Grande · 14 mi away
- PCR Oncology, Arroyo Grande · 14 mi away
- and 1 more
S1501 Dual Observational and Randomized Cohort Study of Patients With Metastatic HER-2+ Breast Cancer at Risk of Cardiac Toxicity
RecruitingPhase 3
- City of Hope Mission Hills, Mission Hills · 18 mi away
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 Santa Maria
- Prostate Cancer7 studies
- Heart Failure4 studies
- Rectal Cancer4 studies
- Colon Cancer4 studies
- Colorectal Cancer4 studies
- Steatotic Liver Disease3 studies
- Non-Small Cell Lung Cancer3 studies
- Lung Cancer3 studies
- Bladder Cancer3 studies
- Stomach Cancer3 studies
- Melanoma3 studies
- Kidney Cancer (Renal Cell Carcinoma)3 studies
From ClinicalTrials.gov, data retrieved Oct 6, 2026. Each study sets its own eligibility; the study team decides who can join.