Clinical trials
Metastatic Breast Cancer clinical trials
Below are recruiting metastatic breast cancer clinical trials, each written for real people, not researchers. We’re tracking 1,312 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04434040RecruitingPhase 2
Atezolizumab and sacituzumab to prevent breast cancer return
This trial tests two medicines after surgery and chemotherapy to help lower the risk that triple-negative breast cancer comes back. It’s for people whose cancer still showed “residual” invasive disease after neoadjuvant (before-surgery) chemotherapy, and whose blood test shows traces of tumor DNA.
San Francisco, CaliforniaAges 18 years+ - NCT04400695RecruitingPhase 3
Targeted drug for breast cancer with low HER2 levels
This trial tests a new drug that targets breast cancer cells with low levels of the HER2 protein. It may offer a new treatment option for patients whose cancer has spread and not responded well to previous therapies.
Beijing, Beijing MunicipalityAges 18–70 - NCT04360330Recruiting
MRI study in early breast cancer with specific lab markers
This study tests selected treatment decisions for women with early-stage breast cancer that has certain lab test results. It may help researchers better match care using MRI and tumor marker information.
Miami, FloridaAges 50 years+ - NCT04348747RecruitingPhase 2
Vaccine plus pembrolizumab for breast cancer in the brain
This trial studies whether a personalized immune-cell vaccine (dendritic cell vaccine) combined with pembrolizumab can help control brain metastases from certain types of breast cancer. It may help your immune system better recognize and attack cancer cells in the brain.
Tampa, FloridaAges 18 years+ - NCT04333706RecruitingPhase 1/Phase 2
Sarilumab plus capecitabine for certain breast cancers
This trial studies whether adding sarilumab to capecitabine can shrink or control metastatic or high-risk breast cancer that lacks HER2 and is either triple-negative or hormone-resistant. It aims to find a safe dose first, then look at how well the treatment works compared with historical results.
Los Angeles, CaliforniaAges 18–99 - NCT04174352RecruitingEarly Phase 1
FES scan to guide tamoxifen for metastatic breast cancer
This early-phase study uses a special PET scan (FES PET/CT) to better match tamoxifen treatment to people with estrogen-receptor–positive breast cancer that has spread. It aims to see whether the scan results can help optimize tamoxifen use and potentially improve outcomes.
Madison, WisconsinAges 19 years+ - NCT04150042RecruitingPhase 1
Test of chemotherapy plus your own stem cells for metastatic cancer
This Phase 1 trial tests a treatment approach using standard chemotherapy along with stem cells taken from you to treat metastatic pancreatic or breast cancer. It is mainly designed to check safety and find the best way to give the treatment, and it may offer an option for people whose cancer has spread.
Boston, MassachusettsAges 18 years+ - NCT04090567RecruitingPhase 2
Olaparib with two partners for advanced BRCA breast cancer
This trial tests whether the drug olaparib works better when combined with cediranib or AZD6738 in people with advanced or metastatic BRCA (inherited) breast cancer. It may help shrink tumors or slow cancer growth after prior treatment with a PARP inhibitor.
Houston, TexasAges 18 years+ - NCT04098640Enrolling by invitation
Testing tumor DNA in younger people with metastatic breast cancer
This study looks at your tumor’s molecular (DNA/biologic) features to better understand metastatic breast cancer in people under 50. You may help researchers by providing tissue samples (biopsies) for lab testing.
Seoul, SeoulAges 19–50 - NCT04133077Recruiting
Biobank study using tumor tissue to grow patient tumor models
This study takes small samples of your breast tumor tissue after (or during) treatment and grows them in lab animals to better study breast cancer. It may help researchers test future ideas for treating aggressive breast cancer types like triple-negative or Luminal B.
Clermont-Ferrand, Puy-de-DômeAges 18 years+ - NCT03990896RecruitingPhase 2
Talazoparib for metastatic breast cancer with BRCA body DNA changes
This Phase 2 trial tests talazoparib, a targeted cancer medicine, in people with metastatic breast cancer that has a harmful BRCA1 or BRCA2 mutation found in tumor DNA circulating in the blood. If you qualify, the goal is to see how well this treatment works when the mutation is detected this specific way.
San Francisco, CaliforniaAges 18 years+ - NCT03863457RecruitingPhase 1
PET/CT scan test for breast cancer using a new tracer
This Phase 1 study tests a new PET/CT imaging tracer to see how well it can detect breast cancer spots in the body. It may help doctors learn where breast cancer is and how imaging could work better in the future.
Philadelphia, PennsylvaniaAges 18 years+ - NCT03723928Recruiting
Blood test–guided monitoring for metastatic breast cancer treatment
This study checks whether specific blood “tumor marker” levels can help monitor how hormone receptor–positive, HER2-negative metastatic breast cancer responds to first-line therapy. It uses regular blood tests (and sometimes scans) to see if this marker-based monitoring is useful and reliable.
Anchorage, AlaskaAges 18 years+ - NCT03808337RecruitingPhase 2
SBRT radiation plus standard treatment for spread cancer
This trial looks at adding a focused radiation treatment called SBRT to standard care for cancers that have spread to a limited number of spots. It aims to control those spread-out tumors while still using the usual cancer treatment plan.
San Carlos, CaliforniaAges 18 years+ - NCT03823144Recruiting
Imaging small live tumor details during surgery
This study uses a special camera to look at solid tumors from inside the body during an operation. It tests whether “live” tumor imaging (using a medicine called fluorescein) can be safely performed in people with certain solid cancers.
Jacksonville, FloridaAges 18 years+ - NCT03606967RecruitingPhase 2
Individualized vaccine added to standard treatment for metastatic triple-negative breast cancer
This Phase 2 trial tests whether adding a personalized cancer vaccine to durvalumab (an immunotherapy), tremelimumab (another immunotherapy), and chemotherapy can improve outcomes for people with metastatic triple-negative breast cancer. It may help your immune system recognize your specific tumor features.
Orange, CaliforniaAges 18 years+ - NCT03424005RecruitingPhase 1/Phase 2
Testing new drug combinations for advanced breast cancer
This study tests how well and how safely different combinations of cancer drugs work for people with metastatic or inoperable locally advanced breast cancer. It may help by finding a better treatment option and collecting information to guide future care.
Duarte, CaliforniaAges 18 years+ - NCT03412877RecruitingPhase 2
Personalized immune-cell therapy for advanced metastatic cancers
This trial tests a personalized cell therapy made from your own immune cells, changed to recognize “neoantigens” on cancer cells. It’s designed for people with metastatic (advanced spread) solid cancers or certain other cancers who have tried standard treatments but cancer is still growing.
Bethesda, MarylandAges 18–72 - NCT03449238RecruitingPhase 1/Phase 2
Pembrolizumab with focused brain radiation for breast cancer brain spread
This trial studies whether pembrolizumab (an immune therapy medicine) plus stereotactic radiosurgery (focused radiation) can better control brain metastases from breast cancer. It may help shrink or slow growth of multiple brain spots with minimal treatment to surrounding tissue.
New York, New YorkAges 19–90 - NCT03275311Recruiting
Care approach changes for metastatic breast cancer
This trial looks at how treatment care for metastatic breast cancer has evolved over time. You may be eligible if you are an adult receiving active cancer treatment in a comprehensive cancer center in France.
AngersAges 18 years+ - NCT02338167Recruiting
Study for pregnant women with breast cancer
This study is for adults with breast cancer who are pregnant and are either newly diagnosed (early) or have locally advanced or metastatic disease. It aims to better understand how breast cancer treatment should be managed during pregnancy.
Böblingen, Baden-WurttembergAges 18–99 - NCT02926690RecruitingPhase 1
MELK inhibitor safety study for advanced breast cancer
This Phase 1 study tests how safe a drug called an MELK inhibitor is in people with advanced breast cancer that has spread or cannot be removed with surgery. If you qualify, the study is focused on side effects and includes a special group for triple-negative breast cancer.
Norwalk, ConnecticutAges 18 years+ - NCT02945579Recruiting
Testing skipping breast surgery or radiation for top responders
This trial studies whether some people with early-stage breast cancer who respond extremely well to hormone/chemo/targeted treatment can safely skip breast surgery and/or radiation. It aims to reduce side effects without increasing cancer risk in carefully selected patients.
Gilbert, ArizonaAges 30 years+ - NCT02732860Recruiting
Test your tumor’s drug response using a lab model
This trial grows a lab model from your own tumor tissue (or resected tissue) to predict which drugs might work best. It’s meant to match investigational treatments to your specific tumor biology.
Toronto, OntarioAges 18 years+
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Common questions
- Are there clinical trials for metastatic breast cancer?
- Yes. Clin2 currently lists 1,312 recruiting metastatic breast cancer studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a metastatic breast cancer trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a metastatic breast cancer trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
- Breast Cancer Early Stage Breast Cancer (Stage 1-3)
- Breast Cancer (Triple Negative Breast Cancer (TNBC))
- Locally Advanced or Metastatic Breast Cancer
- Metastatic Triple-negative Breast Cancer
- HER2-positive Metastatic Breast Cancer
- Advanced/Metastatic Breast Cancer
- Non-metastatic Breast Cancer
- Advanced or Metastatic Breast Cancer
Beyond the search
We also like to point to nonprofits doing real good in this area. We aren’t affiliated with them — we just admire the work.
- Stand Up To CancerPeople facing cancer across many types, through the research that leads to better treatments.
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.