San Francisco, CA18 Active Studies

Breast Cancer Clinical Trials in San Francisco, CA

Find 18 actively recruiting breast cancer clinical trials in San Francisco, CA. Connect with local research sites and explore new treatment options.

18
Active Trials
15
Sponsors
12,423
Enrolling

Recruiting Breast Cancer Studies in San Francisco

RecruitingSan Francisco, CANCT01042379

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...

5,000 participants
QuantumLeap Healthcare Collaborative
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RecruitingSan Francisco, CANCT06393374

Sacituzumab Tirumotecan (MK-2870) Plus Pembrolizumab Versus TPC in TNBC Who Did Not Achieve pCR (MK-2870-012)

This is a randomized, open-label study comparing the efficacy and safety of adjuvant sacituzumab tirumotecan (MK-2870) in combination with pembrolizumab compared to treatment of physician's choice (TP...

1,530 participants
Merck Sharp & Dohme LLC
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RecruitingSan Francisco, CANCT06841354

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...

1,000 participants
Merck Sharp & Dohme LLC
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RecruitingSan Francisco, CANCT04862663

Capivasertib + CDK4/6i + Fulvestrant for Advanced/Metastatic HR+/HER2- Breast Cancer (CAPItello-292)

A Phase Ib/III Open-label, Randomised Study of Capivasertib plus CDK4/6 Inhibitors and Fulvestrant versus CDK4/6 Inhibitors and Fulvestrant in Hormone Receptor-Positive and Human Epidermal Growth Fact...

895 participants
AstraZeneca
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RecruitingSan Francisco, CANCT05232916

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...

750 participants
Greenwich LifeSciences, Inc.
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RecruitingSan Francisco, CANCT06435429

A Study Comparing the Efficacy and Safety of Zanidatamab to Trastuzumab, Each in Combination With Physician's Choice Chemotherapy, for the Treatment of Participants With Metastatic HER2-positive Breast Cancer

The efficacy and safety of zanidatamab in combination with physician's choice of chemotherapy compared with trastuzumab in combination with physician's choice of chemotherapy will be evaluated for the...

550 participants
Jazz Pharmaceuticals
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RecruitingSan Francisco, CANCT04893109

ATEMPT 2.0: Adjuvant T-DM1 vs TH

This research study is studying how well newly diagnosed breast cancer that has tested positive for a protein called HER2 responds using one of two different combination of HER2-directed therapies as ...

500 participants
Dana-Farber Cancer Institute
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RecruitingSan Francisco, CANCT05563220

Open-Label Umbrella Study To Evaluate Safety And Efficacy Of Elacestrant In Various Combination In Participants With Metastatic Breast Cancer

This is a multicenter, Phase 1b/2 trial in participants with estrogen receptor positive/human epidermal growth factor receptor 2 negative (ER+/HER2-) advanced/metastatic breast cancer. The phase 1b pa...

435 participants
Stemline Therapeutics, Inc.
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RecruitingSan Francisco, CANCT06075953

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...

400 participants
QuantumLeap Healthcare Collaborative
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RecruitingSan Francisco, CANCT04802759

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...

316 participants
Hoffmann-La Roche
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RecruitingSan Francisco, CANCT06993844

Phase 1/2 Study of ETX-636 in Participants With Advanced Solid Tumors

Phase 1/2, open-label study of ETX-636 in participants with advanced solid tumors...

233 participants
Ensem Therapeutics
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RecruitingSan Francisco, CANCT06099769

A Study of Enzalutamide, Enzalutamide in Combination With Mifepristone, or Chemotherapy in People With Metastatic Breast Cancer

The researchers are doing this study to find out if the study drug, enzalutamide, alone or combined with the study drug, mifepristone, is effective in treating advanced or metastatic androgen receptor...

201 participants
Memorial Sloan Kettering Cancer Center
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RecruitingSan Francisco, CANCT06157892

A Study of Disitamab Vedotin With Other Anticancer Drugs in Solid Tumors

This clinical trial is studying solid tumor cancers. A solid tumor is one that starts in part of your body like your lungs or liver instead of your blood. Once they've grown bigger in one spot or spre...

172 participants
Seagen, a wholly owned subsidiary of Pfizer
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RecruitingSan Francisco, CANCT06369285

A Study of Alisertib in Combination With Endocrine Therapy in Patients With HR-positive, HER2-negative Recurrent or Metastatic Breast Cancer

PUMA-ALI-1201 is a randomized, dose optimization, multicenter, Phase 2 study of alisertib administered in combination with endocrine therapy in participants with pathology-confirmed HR-positive/HER2-n...

150 participants
Puma Biotechnology, Inc.
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RecruitingSan Francisco, CANCT03971409

Avelumab With Binimetinib, Sacituzumab Govitecan, or Liposomal Doxorubicin in Treating Stage IV or Unresectable, Recurrent Triple Negative Breast Cancer

This phase II trial studies how well the combination of avelumab with liposomal doxorubicin with or without binimetinib, or the combination of avelumab with sacituzumab govitecan works in treating pat...

150 participants
Laura Huppert, MD, BA
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RecruitingSan Francisco, CANCT04829604

ARX788 in HER2-positive, Metastatic Breast Cancer Subjects (ACE-Breast-03)

A Global, Phase 2 Study of ARX788 in HER2-positive Metastatic Breast Cancer Patients who were previously treated with T-DXd...

71 participants
Ambrx, Inc.
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RecruitingSan Francisco, CANCT04434040

Atezolizumab + Sacituzumab Govitecan to Prevent Recurrence in TNBC (ASPRIA)

The purpose of this study is to determine if a combination of two drugs sacituzumab govitecan and atezolizumab works as a treatment for residual cancer in the breast or lymph nodes and have circulatin...

40 participants
Dana-Farber Cancer Institute
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RecruitingSan Francisco, CANCT03990896

Evaluation of Talazoparib, a PARP Inhibitor, in Patients With Somatic BRCA Mutant Metastatic Breast Cancer: Genotyping Based Clinical Trial

This research is to evaluate the effectiveness of Talazoparib as a potential treatment for metastatic breast cancer with a BRCA 1 or BRCA 2 mutation....

30 participants
Massachusetts General Hospital
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About Breast Cancer Clinical Trials in San Francisco

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 18 breast cancer clinical trials recruiting participants in San Francisco, CA. These studies are seeking a combined 12,423 participants. Research is being sponsored by QuantumLeap Healthcare Collaborative, Merck Sharp & Dohme LLC, AstraZeneca and 12 other organizations. Clinical trial participation is free and participants receive study-related medical care at no cost.

Breast Cancer Clinical Trials in San Francisco — FAQ

Are there breast cancer clinical trials in San Francisco?

Yes, there are 18 breast cancer clinical trials currently recruiting in San Francisco, CA. Browse the studies on this page to find one that fits.

How do I join a clinical trial in San Francisco?

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

Are clinical trials in San Francisco free?

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

What breast cancer treatments are being tested?

The 18 active trials in San Francisco are testing new therapies including novel drugs, biologics, and treatment approaches for breast cancer.

Data updated March 2, 2026 from ClinicalTrials.gov