Clinical trials
Breast cancer clinical trials
Cancer that forms in the cells of the breast, the most common cancer in women. We’re tracking 2,417 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT00437879Recruiting
Ultrasound and MRI scans to track breast cancer response early
This study uses ultrasound and/or MRI scans to see how breast cancer responds early while you start “neoadjuvant” treatment (chemotherapy, with or without radiation before surgery). It may help doctors spot response sooner and better understand which imaging changes match treatment benefit.
Toronto, OntarioAges Any age - NCT05891093RecruitingPhase 3
Fluzoparib plus hormone therapy after surgery for breast cancer
This Phase 3 trial tests whether fluzoparib added to standard hormone (endocrine) therapy after early breast cancer surgery can improve outcomes and safety. It may help patients whose tumors are ER-positive, HER2-negative, and a specific SNF3 subtype.
Beijing, Beijing MunicipalityAges 18–70 - 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 - NCT07829848Recruiting
Skip extra radiation for breast cancer patients who respond well to treatment
This trial tests whether women and men with advanced, non-metastatic breast cancer can safely skip an extra radiation boost to the lymph nodes if their tumors respond well to pre-surgery chemotherapy or targeted therapy. The goal is to reduce side effects while keeping cancer control.
Shanghai, Shanghai MunicipalityAges 18–75 - 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 - NCT06503380Recruiting
Managing blood side effects from breast cancer targeted drugs
This study looks at how well current methods manage low blood cell counts (low platelets, low white blood cells, and low red blood cells) that can happen from targeted therapies for breast cancer. If you have breast cancer and are getting or have gotten a targeted therapy, this trial could help improve care for side effects like these.
Shanghai, Not US/CanadaAges Any age - NCT06387628RecruitingPhase 2
LM-108 with immunotherapy for advanced triple-negative breast cancer
This trial tests a new drug called LM-108 combined with a PD-1 inhibitor (a type of immunotherapy) for people with triple-negative breast cancer that has come back or spread. It aims to see if this combination can help shrink tumors or slow the disease.
Shanghai, Shanghai MunicipalityAges 18–75 - 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+ - NCT07753226RecruitingPhase 1
Study of SI-B036 for advanced breast cancer and other solid tumors
This study tests a new drug called SI-B036 for people with advanced breast cancer or other solid tumors that have spread. The goal is to see if the drug is safe and to find the best dose.
Beijing, Beijing MunicipalityAges 18–75 - NCT06299202Recruiting
Predicting breast cancer treatment response with special mammogram
This study uses a special type of mammogram with contrast dye to see if it can predict how well breast cancer responds to chemotherapy before surgery. It's for people with HER2-positive or triple-negative breast cancer.
LyonAges 35 years+ - NCT07646171Recruiting
Everolimus After Alpelisib for Advanced Breast Cancer
This trial tests a drug called everolimus in women with hormone receptor-positive metastatic breast cancer who have already tried alpelisib (a PI3K inhibitor) combined with hormone therapy. The goal is to see if this next treatment can help control cancer growth.
Tel AvivAges 21 years+ - NCT05933876Recruiting
Radiation study for limited spread cancer
This trial looks at whether giving radiation treatment to tumors in people with a limited number of metastases can help control the cancer. It is for adults with certain cancer types that have spread to specific organs, and who can manage daily activities with little or no help.
Albacete, AlbaceteAges 18 years+ - NCT07612215RecruitingPhase 1/Phase 2
Elacestrant for Advanced Triple-Positive Breast Cancer
This trial tests a new drug called elacestrant for advanced breast cancer that is triple-positive (positive for three hormone receptors: ER, PR, and HER2). The drug may help slow or shrink cancer that has progressed despite previous treatments.
New York, New YorkAges 18 years+ - NCT07600957Recruiting
Polarized Light Therapy to Ease Radiation Skin Damage
This trial tests whether a special type of light therapy can reduce skin damage and irritation that happens during radiation treatment for breast cancer. If it works, it could help patients feel more comfortable during and after their radiation therapy.
Banī SuwayfAges 35–55 - NCT07551050Recruiting
Sacituzumab Govitecan for Advanced HER2-Negative Breast Cancer
This trial studies how well sacituzumab govitecan (a targeted cancer drug) works for metastatic breast cancer that is HER2-negative. The study focuses on real-world patient experiences and quality of life in Chinese patients.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT06757621RecruitingPhase 3
Shorter Radiation for Intermediate-Risk Breast Cancer
This trial is testing a shorter course of radiation (called hypofractionated radiation) to the lymph nodes around the breast area after surgery for women with intermediate-risk breast cancer. The goal is to see if this approach works as well as standard radiation while possibly reducing side effects.
Beijing, Beijing MunicipalityAges 45 years+ - NCT07500012Recruiting
Ear nerve stimulation for breast cancer pain
This study tests whether gentle electrical stimulation of a nerve in your ear (called taVNS) can help reduce pain and improve symptoms for breast cancer survivors. You would need to have finished your main treatments, have ongoing pain, and be willing to provide stool samples and undergo brain scans.
Tallahassee, FloridaAges 18–79 - NCT06171360Recruiting
Gut bacteria and CDK4/6 inhibitor treatment in breast cancer
This study looks at how gut bacteria affect response to a type of targeted therapy (CDK4/6 inhibitors) combined with hormone therapy in breast cancer that is hormone receptor-positive and HER2-negative. It may help find out why some people respond better to treatment and could lead to better personalized care.
BrusselsAges 18–100 - NCT06642428Recruiting
Vitamin D for breast cancer treatment before surgery
This trial tests whether taking vitamin D pills during chemotherapy or targeted therapy (before breast cancer surgery) can improve how well the treatment works and reduce side effects. It is for women with low vitamin D levels.
Xining, QinghaiAges 18–80 - NCT07461454RecruitingPhase 3
Comparing YL202 to other treatments for HR+/HER2- breast cancer
This trial tests a new drug called YL202 against other treatments chosen by your doctor for people with a certain type of advanced breast cancer (HR+/HER2-). It aims to see if YL202 works better. You may join if your cancer has spread, you've already tried chemotherapy, and you meet other health criteria.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT04872166RecruitingPhase 1
BTX-A51 for advanced solid tumors and breast cancer patients
This Phase 1 study tests BTX-A51, an experimental treatment, in people with advanced cancers that can’t be cured with standard options. It mainly focuses on safety, side effects, and whether the drug can start helping certain tumors.
Lake Mary, FloridaAges 18 years+ - NCT07441460RecruitingPhase 3
KN026 plus HB1801 after surgery for HER2-positive breast cancer
This trial tests a combination of two drugs (KN026 and HB1801) given after surgery to prevent breast cancer from coming back in people with HER2-positive breast cancer that had spread to lymph nodes. It aims to improve cure rates with a targeted approach.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT07401381RecruitingPhase 1
Injectable vs. oral letrozole in early breast cancer
This study compares a new injectable form of the drug letrozole with the standard oral pill. It aims to find out if the injection works as well as the pill for women who have already taken letrozole for their early breast cancer and have finished their initial treatment.
Beverly Hills, CaliforniaAges 18–80 - 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
Hear when a new Breast cancer trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.
Common questions
- Are there clinical trials for breast cancer?
- Yes. Clin2 currently lists 2,417 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.