Clinical trials
Breast cancer clinical trials
Cancer that forms in the cells of the breast, the most common cancer in women. We’re tracking 2,460 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04469296Recruiting
Diet changes before surgery for hormone-receptor breast cancer
This trial tests whether changing your diet before your breast surgery can help people with early, hormone-receptor (ER/PR+) breast cancer. It focuses on patients who have not started treatment yet and want to keep surgery as the main treatment.
Montpellier, HeraultAges 18–80 - NCT05406232Recruiting
Radiation study to track immune changes in breast cancer
This study gives a short course of radiation to the breast or chest wall and measures how your immune system responds. It may help doctors better understand which immune changes happen after radiation and how this could improve palliative (symptom-relieving) care.
Houston, TexasAges 18 years+ - NCT07376174Recruiting
HER2-positive breast cancer and dual-target therapy study
This study looks at how well a combination of two targeted drugs (trastuzumab and pertuzumab) works for people with HER2-positive breast cancer that hasn't spread. It aims to understand how HER2 levels affect treatment outcomes after surgery.
Jinan, ShandongAges 18 years+ - NCT06686394RecruitingPhase 1/Phase 2
New drug combo for HER2+ breast cancer that has spread
This trial tests a new drug, patritumab deruxtecan, combined with other cancer treatments for people with advanced HER2+ breast cancer that cannot be removed by surgery. It may be an option if you have already tried other HER2-targeted therapies.
Aurora, ColoradoAges 18 years+ - NCT05283330RecruitingPhase 1
Tested 212Pb imaging drug for certain advanced GRPR tumors
This early-phase study tests how safe and tolerable an experimental radiation drug is for adults with certain advanced or metastatic cancers that show a target called GRPR. Doctors will also use special scans to confirm the tumor has the target so the treatment can be delivered to the right place.
Chicago, IllinoisAges 18 years+ - NCT06695845RecruitingPhase 2
Study of zanidatamab for HER2-positive solid tumors
This trial tests a drug called zanidatamab in people with advanced solid tumors that have high levels of HER2 protein (called HER2-positive). It aims to see if zanidatamab can shrink or slow the growth of these tumors.
Prescott, ArizonaAges 18 years+ - NCT07069595RecruitingPhase 2
Blood test for breast cancer survivors at risk of recurrence
This trial uses a simple blood test to look for leftover cancer DNA in people with triple-negative breast cancer who still have disease after chemotherapy and surgery. It aims to catch any early signs of the cancer coming back.
Chapel Hill, North CarolinaAges 18 years+ - NCT07552467Recruiting
PET Imaging Scan for Detecting Cancer Using New Radioactive Tracer
This study tests a new type of imaging scan (PET/CT or PET/MR) that uses a radioactive tracer to help doctors better detect and diagnose various cancers. The scan targets a specific protein found in tumors, which may help identify cancer more accurately than standard imaging.
Wuhan, HubeiAges 18 years+ - NCT07281001Recruiting
Trastuzumab deruxtecan study for breast cancer patients
This study looks at how well the drug trastuzumab deruxtecan works in women with breast cancer that has spread. It is for patients who have already taken this drug.
MoscowAges 18–80 - NCT07469709Recruiting
Cancer risk study using genetics and monitoring
This study looks at genetic and other factors in people with certain cancers to better understand personal cancer risks and improve monitoring. It may help find ways to detect changes earlier.
Candiolo, TurinAges 18 years+ - NCT06405269Enrolling by invitation
How breast cancer treatment affects cholesterol in young women
This study looks at how chemotherapy, hormone therapy, or targeted therapy affects cholesterol levels in younger women with early-stage breast cancer that can be removed with surgery. It may help doctors understand how to better manage heart health during cancer treatment.
Beijing, Beijing MunicipalityAges 18–40 - NCT06685796RecruitingPhase 2
New drug combo for advanced triple-negative breast cancer
This trial is testing a new drug called BEBT-209 combined with chemotherapy (carboplatin and gemcitabine) for people with advanced triple-negative breast cancer. It may be an option if you have had 1 or 2 prior treatments and your cancer is not controlled by standard therapies.
Guangzhou, GuangdongAges 18 years+ - NCT06548919Recruiting
Treatment patterns for ESR1-mutated advanced breast cancer
This study looks at how Chinese patients with a specific gene change (ESR1 mutation) in ER-positive, HER2-negative advanced breast cancer are currently being treated. It will help doctors understand what treatments work best for people whose cancer has stopped responding to hormone therapy.
Suzhou, JiangsuAges 18 years+ - NCT06330012Recruiting
Understanding resistance to T-Dxd in HER2+ breast cancer
This study looks at why some HER2-positive breast cancer patients stop responding to the drug T-Dxd (trastuzumab deruxtecan). It aims to find out how resistance develops, which may help improve future treatments.
SeoulAges Any age - NCT06080620Recruiting
Choosing the best treatment for locally advanced breast cancer
This study looks at different treatment plans for women with newly diagnosed, locally advanced breast cancer (stage IIIb-IIIc). It aims to find the most effective combination of surgery, chemotherapy, and radiotherapy. If you are a woman aged 18-70 with this diagnosis and your tumor can be surgically removed, this trial may be an option for you.
BeijingAges 18–70 - NCT05635487RecruitingPhase 2
Neoadjuvant treatment for HER2-positive breast cancer with SHR-A1811
This trial tests whether SHR-A1811 alone, or together with pyrotinib, given before surgery, can shrink HER2-positive breast cancer. It may help you respond better to treatment while making surgery easier.
Shenyang, LiaoningAges 18–75 - NCT04767659Recruiting
Optical imaging to predict full response to breast cancer chemo
This study uses a light-based scanner (optical imaging) during neoadjuvant chemotherapy to see how your breast cancer responds and to predict whether treatment will fully clear the tumor. If you qualify, it may help researchers better match imaging patterns to treatment success.
MilanAges 18 years+ - NCT06518382Recruiting
Study of leftover tumor after chemo and trastuzumab
This study looks at leftover breast cancer cells (after chemo and targeted therapy) to find out why some cells resist treatment. It may help doctors better understand how to treat HER2-positive breast cancer in the future.
Milan, LombardyAges 18 years+ - NCT06435429RecruitingPhase 3
Zanidatamab vs trastuzumab for HER2+ breast cancer
This study compares a new drug called zanidatamab against trastuzumab (Herceptin), both given with a chemotherapy of your doctor's choice. It is for people with HER2-positive breast cancer that has spread and who have already tried T-DXd treatment.
Phoenix, ArizonaAges 18 years+ - NCT05872347RecruitingPhase 2
Brain metastasis breast cancer trial with hormone therapy plus SPH4336
This trial tests whether SPH4336, added to standard hormone (endocrine) therapy, can improve outcomes for people with breast cancer that has spread to the brain. It also looks closely at safety and side effects.
Hefei, AnhuiAges 18–75 - NCT05704829RecruitingPhase 2
Trastuzumab-deruxtecan before surgery for HER2-positive early breast cancer
This trial compares giving trastuzumab-deruxtecan before surgery versus standard chemotherapy plus trastuzumab and pertuzumab. It aims to see which approach works better to shrink or control HER2-positive early breast cancer and improve outcomes.
Baden-Baden, Baden-WurttembergAges 18 years+ - NCT07136428RecruitingPhase 1/Phase 2
Asciminib for HER2+ breast cancer that has spread to the brain
This trial tests the drug asciminib for people with HER2-positive breast cancer that has spread to the brain and is growing. It may be an option if you have already tried standard treatments like T-DXd and tucatinib.
Durham, North CarolinaAges 18 years+ - NCT07389733RecruitingPhase 1/Phase 2
Study of HRS-6208 with other drugs for advanced breast cancer
This trial tests a new combination of drugs (HRS-6208 with HRS-8080, fulvestrant, or letrozole) for people with advanced or metastatic breast cancer that cannot be removed by surgery. It aims to see if these combinations can help shrink or slow the cancer.
Dalian, LiaoningAges 18–75 - NCT07235176RecruitingPhase 1/Phase 2
QLS1304 plus hormone therapy for ER+ breast cancer
This trial tests a new drug called QLS1304 combined with hormone therapy for people with ER-positive, HER2-negative breast cancer that has spread or come back and no longer responds to hormone therapy alone. The goal is to see if this combination can help shrink tumors or slow the disease.
ShanghaiAges 18 years+
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Common questions
- Are there clinical trials for breast cancer?
- Yes. Clin2 currently lists 2,460 recruiting 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 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 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
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.