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 1,328 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT03646955Recruiting
Partial breast radiation versus no radiation after lumpectomy
This trial compares giving radiation only to part of the breast versus not giving radiation at all after breast-conserving surgery. It’s meant for women with early, hormone-driven breast cancer to see if skipping radiation can be safe and reduce treatment burden.
SantiagoAges 60 years+ - NCT03740893RecruitingPhase 2
Test drug to block DNA damage in triple-negative breast cancer
This Phase 2 trial studies a treatment given around the time of breast surgery to help shrink or control residual (remaining) triple-negative breast cancer. It also checks biomarkers (lab signals) to understand who benefits, with some people receiving anti–PD-L1 immunotherapy and some not.
Bournemouth, DorsetAges 18 years+ - NCT03787056Recruiting
Blood test marker study in many cancer types
This study measures a blood marker called progastrin (at diagnosis and during treatment) to see how well it predicts response or outcomes. It may help doctors choose or monitor treatment more precisely for several cancer types.
BronAges 18 years+ - NCT03788213Recruiting
Shorter vs longer radiation after breast cancer surgery
This trial compares giving breast radiation over one week versus three weeks after surgery. It aims to see whether the shorter schedule works just as well and is safe for people with certain types of early breast cancer.
Kolkata, West BengalAges 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+ - NCT03824145Recruiting
Lifestyle coaching for women with metastatic breast cancer
This study tests a structured lifestyle program (diet and physical activity guidance) for women with metastatic breast cancer. It may help improve well-being and health behaviors, especially if you haven’t been following the recommended nutrition and activity guidelines.
Maywood, IllinoisAges 18 years+ - NCT03856372Recruiting
Shorter radiation schedule after mastectomy for high-risk breast cancer
This trial compares a shorter radiation plan to a standard longer plan after mastectomy for people considered high risk. It may help reduce treatment time while still trying to prevent breast-cancer recurrence.
Suzhou, JiangsuAges 18–75 - 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+ - NCT03870620Recruiting
Register for metastatic breast cancer patients in Austria
This trial is a non-treatment registry that collects information about people with metastatic breast cancer in Austria. It may help researchers better understand the disease and outcomes over time by tracking real-world patient details.
Salzburg, State of SalzburgAges 18 years+ - NCT03971045RecruitingPhase 2
Pembrolizumab plus low-dose oral chemo for chest wall breast cancer
This Phase 2 trial tests pembrolizumab (an immune therapy) plus low-dose oral cyclophosphamide in people with chest wall breast cancer that has spread locally and may have distant metastases. It aims to see if this combination can shrink tumors and control cancer longer, especially in tumors with certain immune markers.
MilanAges 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+ - NCT07702708Recruiting
AI predicts chemotherapy response in HR+/HER2- breast cancer
This trial uses AI to analyze your pre-treatment MRI and predict how well your tumor will respond to chemotherapy before surgery. It is for people with HR+/HER2- breast cancer who need chemo before their operation.
Fuzhou, FujianAges 18 years+ - NCT04020575RecruitingPhase 1
CAR T cells made from your blood for advanced breast cancer
This Phase 1 trial tests CAR T cells made from your own immune cells to target advanced breast cancer. The cells are designed to recognize a specific cancer marker (called MUC1*), with the goal of shrinking tumors or keeping them under control.
Duarte, CaliforniaAges 18 years+ - NCT04030507Recruiting
Brain MRI screening during chemotherapy for breast cancer
This trial checks the brain using MRI in people with breast cancer that has spread outside the breast or can’t be fully removed. The goal is to screen for brain involvement and see how MRI findings fit with treatment timing, when it’s safe to do so.
Boston, MassachusettsAges 18 years+ - NCT04050228Recruiting
Ultrasound test to tailor chemotherapy for breast cancer
This trial tests whether a special ultrasound measurement can help doctors choose the right chemotherapy plan during treatment for breast cancer. It may help avoid under- or over-treatment by adjusting care based on the ultrasound results.
Toronto, OntarioAges 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+ - 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+ - NCT04159818RecruitingPhase 2
Adding immune treatments to improve checkpoint drug response in TNBC
This Phase 2 trial tests strategies meant to “prime” the immune system so that immune checkpoint medicines may work better in people with triple-negative breast cancer that has spread (or can’t be fully cured). You might be considered if your cancer has measurable areas that can be biopsied and you meet specific health and prior-treatment rules.
AmsterdamAges 18 years+ - NCT04170634Recruiting
CT scan study to assess bone strength in certain cancers
This study uses a CT scan to estimate how strong a cancer-affected bone area is, helping doctors evaluate fracture risk and bone management. It is aimed at adults with bone lesions from several common cancer types.
AngersAges 18 years+ - NCT04263298RecruitingPhase 3
Fulvestrant or capecitabine after chemo for metastatic breast cancer
This Phase 3 trial compares two medicines—fulvestrant versus capecitabine—as “maintenance” treatment after your first chemo helps control metastatic breast cancer. It aims to see which one helps people live longer with better disease control.
Guangzhou, GuangdongAges 18–75 - NCT04289935Recruiting
Vacuum biopsy before surgery to check treatment response
This trial studies a special vacuum-assisted biopsy taken just before breast surgery to see how well pre-surgery (neoadjuvant) chemotherapy worked. It may help doctors understand whether patients truly had a complete or near-complete response on scans, which can guide next steps.
SalzburgAges 18 years+ - NCT04305834RecruitingPhase 2
Abemaciclib plus hormone pills for metastatic breast cancer in older adults
This Phase 2 study tests whether abemaciclib combined with standard hormone (endocrine) therapy can better control metastatic breast cancer in people age 70 and older. It may help if your cancer has already grown despite prior hormone therapy and/or other cancer medicines.
Duarte, CaliforniaAges 70 years+ - NCT04315233RecruitingPhase 1
Testing two drugs for hard-to-treat triple-negative breast and ovarian cancer
This Phase 1 trial tests ribociclib plus belinostat in people with metastatic triple-negative breast cancer or recurrent ovarian cancer. It also looks at your tumor’s genetics (from a fresh biopsy) to see who might respond better.
Salt Lake City, UtahAges 18 years+
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Common questions
- Are there clinical trials for metastatic breast cancer?
- Yes. Clin2 currently lists 1,328 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.