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Breast Cancer clinical trials in San Francisco, CA
43 studies for Breast Cancer are looking for participants at sites in and around San Francisco (within about 30 miles). Open a study to see who can join and how to contact the study team.
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Study of AZD9574 as Monotherapy and in Combination With Anti-cancer Agents in Participants With Advanced Solid Malignancies
RecruitingPhase 1/2
- Research Site, San Francisco
Phase 3 Study of RLY-2608 + Fulvestrant vs Capivasertib + Fulvestrant as Treatment for Locally Advanced or Metastatic PIK3CA-mutant HR+/HER2- Breast Cancer
RecruitingPhase 3
- University of California San Francisco (UCSF) Helen Diller Family Comprehensive Cancer Center, San Francisco
Distance-Based Exercise to Preserve Function and Prevent Disability
Recruiting
- Kaiser Permanente-San Francisco, San Francisco
A Study of Alisertib in Combination With Endocrine Therapy in Patients With HR-positive, HER2-negative Recurrent or Metastatic Breast Cancer
RecruitingPhase 2
- University of California San Francisco (UCSF) Helen Diller Family Comprehensive Cancer Center, San Francisco
Palazestrant in Combination With Ribociclib for the First-line Treatment of ER+/HER2- Advanced Breast Cancer
RecruitingPhase 3
- Clinical Trial Site, San Francisco
- Clinical Trial Site, San Francisco
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
- Kaiser Permanente, San Francisco
- UCSF Medical Center at Mission Bay, San Francisco
Women Informed to Screen Depending on Measures of Risk (Wisdom Study)
RecruitingHealthy volunteers welcome
- University of California San Francisco, San Francisco
Pulsed Electric Field Ablation for Metastatic Breast Cancer
Recruiting
- University of California San Francisco, San Francisco
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
- UCSF Zuckerberg SF General, San Francisco
- University of California, San Francisco (UCSF), San Francisco
A Study of LOXO-783 in Patients With Breast Cancer/Other Solid Tumors
RecruitingPhase 1
- UCSF Medical Center at Mission Bay, San Francisco
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
RecruitingPhase 1/2
- UCSF Helen Diller Family CCC, San Francisco
Study of ORIC-114 in Patients With Advanced Solid Tumors Harboring an EGFR or HER2 Alteration
RecruitingPhase 1/2
- University of California, San Francisco, San Francisco
Study of AMXT 1501 and DFMO in Combination With Standard Therapies in Advanced Solid Tumors
RecruitingPhase 1/2
- University of California-San Fransisco, San Francisco
Improving Survival for Metastatic Lobular Breast Cancer (PLUMB Registry)
RecruitingObservational study
- University of California, San Francisco, San Francisco
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
- California Pacific Medical Center-Pacific Campus, San Francisco
- Kaiser Permanente-San Francisco, San Francisco
TReatment of ADC-Refractory Breast CancEr With Dato-DXd or T-DXd: TRADE DXd
RecruitingPhase 2
- University of San Francisco, San Francisco
ATEMPT 2.0: Adjuvant T-DM1 vs TH
RecruitingPhase 2
- UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco
Hippocampal Avoidance in Craniospinal Irradiation for the Treatment of Leptomeningeal Metastases From Breast Cancer or Non-small Cell Lung Cancer
RecruitingPhase 2
- University of California San Francisco, San Francisco
Generative AI Patient Education Module for Breast Oncology
Recruiting
- University of California, San Francisco, San Francisco
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
- University of California San Francisco - Helen Diller Family Comprehensive Cancer Center, San Francisco
E-Mindfulness Approaches for Living After Breast Cancer
RecruitingPhase 3
- Kaiser Permanente-San Francisco, San Francisco
A Study to Assess the Efficacy and Safety of FORE8394 in Participants With Cancer Harboring BRAF Alterations
RecruitingPhase 2
- UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco
First-in-Human Study of Tersolisib (STX-478) as Monotherapy and in Combination With Other Antineoplastic Agents in Participants With Advanced Solid Tumors
RecruitingPhase 1/2
- UCSF Medical Center at Mission Bay, San Francisco
A Study of Emiltatug Ledadotin (Emi-Le) in Participants With Solid Tumors
RecruitingPhase 1/2
- UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco
Phase 1/2 Study of ETX-636 in Participants With Advanced Solid Tumors
RecruitingPhase 1/2
- UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco
Magnetic Resonance Imaging in Radiotherapy for Breast Cancer
RecruitingObservational study
- University of California, San Francisco, San Francisco
Fertility Preservation Using Tamoxifen and Letrozole in Estrogen Sensitive Tumors Trial
RecruitingPhase 3
- University of California at San Francisco, San Francisco
I-SPY TRIAL: Neoadjuvant and Personalized Adaptive Novel Agents to Treat Breast Cancer
RecruitingPhase 2
- University of California San Francisco (UCSF), San Francisco
Evaluation of Talazoparib, a PARP Inhibitor, in Patients With Somatic BRCA Mutant Metastatic Breast Cancer: Genotyping Based Clinical Trial
RecruitingPhase 2
- UCSF Medical Center-Mission Bay/Benioff Children's Hospital, San Francisco
Atezolizumab + Sacituzumab Govitecan to Prevent Recurrence in TNBC (ASPRIA)
RecruitingPhase 2
- University of California San Francisco, San Francisco
Comparative Effectiveness Trial of Two Supportive Cancer Care Delivery Models for Adults With Cancer
Recruiting
- Zuckerberg San Francisco General, San Francisco
- Kaiser Foundation Research Institute, San Francisco
- University of San Francisco, San Francisco
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
- California Pacific Medical Center-Pacific Campus, San Francisco
- Kaiser Permanente-San Francisco, San Francisco
Novel Body Composition Measurements in Association With Outcomes of Breast Reconstruction Reconstruction
RecruitingObservational study
- University of California, San Francisco
Microbiome and Association With Implant Infections
RecruitingPhase 2
- University of California, San Francisco, San Francisco
Assessing Benefits and Harms of Cannabis/Cannabinoid Use Among Cancer Patients Treated in Community Oncology Clinics
RecruitingObservational study
- Kaiser Permanente-San Francisco, San Francisco
A Study of Enzalutamide, Enzalutamide in Combination With Mifepristone, or Chemotherapy in People With Metastatic Breast Cancer
RecruitingPhase 2
- University of California San Francisco (Data collection only), San Francisco
Phase 1/2 Dose Finding, Safety and PK Study in Advanced Refractory Solid Tumors
RecruitingPhase 1/2
- UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco
A Study of CLSP-1025 in Adult Patients With Solid Tumors That Harbor the p53 R175H Mutation
RecruitingPhase 1
- University of California San Francisco, San Francisco
Post-operative Radiotherapy Omission in Selected Patients With Early Breast Cancer Trial International VErsion (PROSPECTIVE)
Recruiting
- UCSF Breast Care Center, San Francisco
Patient Care Outreach, Navigation, Technology and Support 2.0
Recruiting
- Zuckerberg San Francisco General Hospital, San Francisco
- University of California, San Francisco, San Francisco
Prospective Registry of ADC as First- and Second-line Treatment for Breast Cancer
RecruitingObservational studyHealthy volunteers welcome
- University of California, San Francisco, San Francisco
SYNERGY-AI: Artificial Intelligence Based Precision Oncology Clinical Trial Matching and Registry
RecruitingObservational study
- Massive Bio SYNERGY-AI site, San Francisco
MammaPrint, BluePrint, and Full-genome Data Linked With Clinical Data to Evaluate New Gene EXpression Profiles
RecruitingObservational study
- UCSF Breast Care Center, San Francisco
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 San Francisco
- Prostate Cancer45 studies
- Non-Small Cell Lung Cancer36 studies
- Cancer (all types)35 studies
- Heart Failure29 studies
- Metastatic Cancer28 studies
- Lung Cancer22 studies
- Melanoma22 studies
- Pancreatic Cancer20 studies
- Ovarian Cancer19 studies
- Colorectal Cancer18 studies
- Cardiovascular Disease18 studies
- Glioblastoma17 studies
From ClinicalTrials.gov, data retrieved Oct 6, 2026. Each study sets its own eligibility; the study team decides who can join.