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 1,333 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06515470RecruitingPhase 1
Testing BTX-9341 for advanced breast cancer
This trial tests a new oral drug, BTX-9341, for people with advanced or metastatic hormone receptor-positive, HER2-negative breast cancer who have already had certain treatments, including a CDK4/6 inhibitor. The goal is to see if it is safe and effective.
Rochester, MinnesotaAges 18 years+ - NCT06517212RecruitingPhase 2
Tirzepatide for weight loss in MRD-positive early breast cancer
This study tests whether the weight-loss drug tirzepatide (Mounjaro) can help prevent breast cancer from coming back in people who are overweight and have a sign of leftover cancer cells in their blood (called MRD-positive). You must have already finished at least one year of hormone therapy for early-stage breast cancer.
Dallas, TexasAges 18 years+ - NCT06532812RecruitingPhase 1/Phase 2
TIL therapy plus immunotherapy for advanced breast cancer
This trial tests a personalized therapy using your own immune cells (TILs) combined with immunotherapy to fight advanced breast cancer that has not responded to other treatments. It may help if you have a tumor that can be biopsied and you are generally healthy enough for the procedures.
Beijing, Beijing MunicipalityAges 16–90 - NCT06533332RecruitingPhase 1
Testing ERX-315 for advanced solid tumors
This trial tests a new drug called ERX-315 for people with advanced solid tumors (like breast, ovarian, pancreatic, endometrial, or liver cancer) that have not responded to standard treatments. The goal is to see if the drug is safe and how well it works.
Ryde, New South WalesAges 18 years+ - NCT06533826RecruitingPhase 2
Testing two antibody drugs for HER2-low breast cancer
This trial tests two antibody-drug conjugates (Enhertu and Datroway) for breast cancer that is HER2-low or HER2-0. It aims to find the best treatment sequence for people whose cancer has stopped responding to prior therapy.
Birmingham, AlabamaAges 18 years+ - NCT06545331RecruitingPhase 1
A study of XB010 for advanced solid tumors
This trial tests an investigational drug called XB010 for people with solid tumors that have spread or cannot be removed by surgery. It aims to see if XB010 is safe and effective for several cancer types, including lung, breast, head and neck, and esophageal cancers.
Irvine, CaliforniaAges 18 years+ - NCT06545682RecruitingPhase 1
Study of alpelisib and pembrolizumab for advanced breast cancer or melanoma
This trial tests a combination of two drugs, alpelisib and pembrolizumab, for people with advanced triple-negative breast cancer or melanoma that has spread. The goal is to see if the combination can help shrink tumors, including those that have spread to the brain.
Houston, TexasAges 18 years+ - NCT06547840RecruitingPhase 1
Study of MOv18 IgE for ovarian, endometrial, and breast cancers with a specific marker
This trial tests a new antibody treatment called MOv18 IgE for patients with advanced ovarian, endometrial, or triple-negative breast cancers that have a protein called folate receptor alpha (FRα) on their tumor cells. The goal is to see if the treatment is safe and effective.
BristolAges 18 years+ - NCT06551220Recruiting
T-DXd for advanced breast cancer with various HER2 levels
This study looks at how well the drug T-DXd (Enhertu) works against breast cancer that has spread or can't be removed with surgery. It includes patients with any level of HER2 protein, so it might be an option even if your cancer has low HER2.
New Haven, ConnecticutAges 18–80 - NCT06568692RecruitingPhase 2
Study of PCS6422 with capecitabine for advanced breast cancer
This trial tests a new drug combination (PCS6422 plus capecitabine) for people with advanced or metastatic breast cancer that has not responded to other treatments. The goal is to see if adding PCS6422 can make the chemotherapy work better.
Tucson, ArizonaAges 18 years+ - NCT06586957RecruitingPhase 1
Study of NKT3964 for advanced solid tumors
This trial is testing an experimental oral drug called NKT3964 for people with advanced solid tumors that have stopped responding to standard treatments. The drug works by blocking a protein called CDK2, which some cancers need to grow.
Little Rock, ArkansasAges 18 years+ - NCT06589830RecruitingPhase 2
TL938 with Trastuzumab for HER2+ Colorectal Cancer
This trial is testing a new combination of drugs (TL938 and trastuzumab) for people with a specific type of advanced colorectal cancer that is HER2-positive and RAS wild-type. It may offer a new option if you have already tried standard chemotherapy and a blood vessel-blocking drug.
Beijing, Beijing MunicipalityAges 18 years+ - NCT06606730RecruitingPhase 3
Personalized pembrolizumab after strong chemo response for early triple-negative breast cancer
This trial is for people with early triple-negative breast cancer who had a strong response to chemotherapy combined with pembrolizumab before surgery. It aims to find the best way to continue using pembrolizumab after surgery to reduce the risk of cancer coming back.
BrusselsAges 18 years+ - NCT06609187RecruitingPhase 1
Study of GNC-077 for advanced breast cancer and other solid tumors
This trial tests a new drug called GNC-077 for people with advanced breast cancer or other solid tumors that have spread. It aims to see if the drug is safe and effective.
Beijing, Beijing MunicipalityAges 18 years+ - NCT06610565Recruiting
Fasting-mimicking diet for breast cancer side effects
This study tests if a special diet that mimics fasting can help reduce side effects from hormone therapy (aromatase inhibitors) in women with breast cancer. The diet is a low-calorie meal plan designed to lower cholesterol and improve well-being.
Milan, ItalyAges 18 years+ - NCT06625775RecruitingPhase 1
Study of BBO-10203 for advanced solid tumors
This trial tests a new drug called BBO-10203, alone or combined with other cancer treatments, for people with certain advanced breast, colorectal, or lung cancers. It aims to see if the drug is safe and effective.
Duarte, CaliforniaAges 18 years+ - NCT06635980RecruitingPhase 2
Radiation before or after breast cancer surgery
This trial compares two ways of giving radiation for breast cancer that has not spread: before or after surgery. It aims to see if giving radiation first might work as well or better.
Scottsdale, ArizonaAges 18 years+ - NCT06641544RecruitingPhase 4
Testing different drug combos for HER2-positive breast cancer
This trial tests different combinations of the drug Inetetamab as a first treatment for breast cancer that has spread and is HER2-positive. It aims to find which combo works best and is safe for newly diagnosed metastatic patients.
Shanwei, GuangdongAges 18–70 - NCT06642545RecruitingPhase 2
New targeted drug combo for HER2-low breast cancer
This trial tests a new combination of targeted drugs (Disitamab Vedotin and RC148) against a standard chemotherapy (Abraxane) with or without an immunotherapy drug (Toripalimab) for advanced breast cancer that is HER2-low and hormone receptor-negative. The goal is to see if the new combination works better at shrinking tumors and slowing cancer growth.
Beijing, Beijing MunicipalityAges 18 years+ - NCT06649331RecruitingPhase 2
Re-trying antibody-drug conjugates for advanced breast cancer
This study looks at whether giving a different antibody-drug conjugate (ADC) after a previous one can help people with advanced or metastatic breast cancer. It aims to find new options for patients who have already had ADC treatment.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT06650423Recruiting
Staying on hormone therapy for early breast cancer
This study looks at how well patients take their hormone-lowering pills (aromatase inhibitors, with or without abemaciclib) for early-stage breast cancer. It aims to understand adherence patterns and help improve support for patients.
LjubljanaAges 18–99 - NCT06658080Recruiting
Testing drugs on fluid from breast cancer
This trial uses fluid from the chest or belly of breast cancer patients to grow tiny tumor models in the lab. These models help doctors find which drugs might work best for each patient.
Hangzhou, ZhejiangAges 18–70 - NCT06665178RecruitingPhase 2
Testing SG after T-DXd in ER+/HER2-low metastatic breast cancer
This trial tests whether a different chemotherapy drug, called sacituzumab govitecan (SG), can help people with ER+/HER2-low metastatic breast cancer who have already been treated with trastuzumab deruxtecan (T-DXd). It also looks at genetic markers in your tumor to predict who might benefit from SG.
Vancouver, British ColumbiaAges 18 years+ - NCT06666270RecruitingPhase 1
SYN818 for advanced solid tumors with DNA repair defects
This trial tests a new drug called SYN818 for people with advanced breast, ovarian, prostate, or other solid tumors that have stopped responding to standard treatments. It is designed for patients whose tumors have a specific DNA repair problem (BRCA mutation or other HR pathway deficiency).
Zhengzhou, HenanAges 18 years+
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Common questions
- Are there clinical trials for metastatic breast cancer?
- Yes. Clin2 currently lists 1,333 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.