Clinical trials
Breast cancer clinical trials
Cancer that forms in the cells of the breast, the most common cancer in women. We’re tracking 2,472 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07743190RecruitingPhase 2
Lighter chemo for early-stage triple-negative breast cancer with high immune cells
This trial tests a less intense chemotherapy regimen (without one of the standard drugs) combined with immunotherapy for people with early-stage triple-negative breast cancer whose tumors have a high level of immune cells (TILs). The goal is to see if this approach is effective while reducing side effects.
Syracuse, New YorkAges 18 years+ - NCT04817540RecruitingPhase 2
Testing anti-HER2 treatment for HER2-enriched early breast cancer
This trial tests an anti-HER2 medicine in people whose breast cancer is classified as “HER2-enriched” using a special lab test (PAM50). It aims to see whether this treatment can help prevent or control cancer that cannot be fully removed by surgery.
SeoulAges 19 years+ - NCT05879926RecruitingPhase 3
Testing chemo after hormone therapy in premenopausal early breast cancer
This Phase 3 trial checks whether adding chemotherapy after standard hormone-blocking treatment works better for some premenopausal women with early-stage, ER-positive, HER2-negative breast cancer. It targets patients with limited lymph node spread and a lower-to-intermediate tumor “recurrence” risk score.
Birmingham, AlabamaAges 18–60 - NCT04019678Recruiting
Breast cancer study after chemotherapy with small underarm node spread
This study looks at whether it’s safe and effective to avoid removing many underarm lymph nodes in some people who, after chemotherapy, still seem to have only tiny (“micro”) cancer deposits in the sentinel lymph node. It may help reduce treatment side effects while keeping cancer control.
Rozzano, MIAges 18–75 - NCT04137653RecruitingPhase 3
New pre-surgery drug choice for triple-negative breast cancer
This trial tests which chemotherapy drug works better before surgery (neoadjuvant therapy) for triple-negative breast cancer that has spread to underarm lymph nodes. It compares two forms of paclitaxel given by random assignment to see which option may shrink the tumor more effectively and improve outcomes.
Shenyang, LiaoningAges 18–70 - NCT04626440Recruiting
Testing DNA/RNA tools to study different breast cancer types
This study uses special DNA and RNA testing tools to better understand differences between breast cancer tumors in Taiwanese patients. It may help doctors choose more personalized treatment approaches by learning how tumors vary.
TaipeiAges 20 years+ - NCT05838066RecruitingPhase 3
KN026 plus HB1801 for HER2-positive advanced breast cancer
This Phase 3 study tests whether taking KN026 with HB1801 as first treatment works better and is safe for people with HER2-positive breast cancer that has come back or spread. It may help by improving tumor response and delaying progression compared with the study’s treatment plan.
Beijing, chaoyangAges 18 years+ - NCT06193525RecruitingPhase 2
Talazoparib for advanced breast cancer with a DNA repair defect
This trial tests a drug called talazoparib (a PARP inhibitor) for advanced breast cancer that has a specific DNA repair defect (HRD) or a BRCA mutation. The goal is to see if the drug works better when the patient's tumor is tested for this defect just before treatment.
Leiden, South HollandAges 18 years+ - NCT06595147Recruiting
Exercise for heart health in breast cancer survivors
This study tests if a 12-week exercise program improves heart health in women over 60 who have finished treatment for early-stage breast cancer. You will be placed in either an aerobic exercise group or a stretching group to see which helps your heart more.
Edmonton, AlbertaAges 60 years+ - NCT06729814Recruiting
Repeated Breast Radiation Side Effects Study
This study asks whether having radiation therapy again to the same breast or chest (15 sessions over 3 weeks) causes more skin redness, peeling, or pain. The goal is to learn more about side effects so doctors can better prepare and support patients who need a second course of breast radiation.
Toronto, OntarioAges 18 years+ - NCT07396766Recruiting
BREASTChoice decision aid for breast surgery patients
This study tests a tool called BREASTChoice AIM1-B, which helps people who have had breast surgery make informed choices about their follow-up care. You may be eligible if you had a mastectomy or lumpectomy in the past 8 years for breast cancer or to lower your risk.
Chapel Hill, North CarolinaAges 18 years+ - NCT05621837Recruiting
Biomarker study to guide treatment for several advanced cancers
This study measures how strongly your immune system is being suppressed and uses that information to help personalize cancer treatment. It mainly looks at people with certain advanced cancers and needs tumor tissue and follow-up to check possible immune-related markers.
MilanAges 18–90 - NCT05872295RecruitingPhase 1
Study drug for HER2-positive advanced cancers
This Phase 1 trial tests IKS014 to see how safe it is and how well it works in advanced solid tumors that have HER2. You may be eligible if your tumor is HER2-positive (including certain “low HER2” types) and your body’s blood counts and organ function are strong enough.
Newport Beach, CaliforniaAges 18 years+ - NCT07218003Enrolling by invitationPhase 1
Study of RNDO-564 alone or with pembrolizumab for bladder cancer
This trial tests an experimental drug, RNDO-564, either by itself or combined with another drug (pembrolizumab), for people with advanced bladder cancer or other solid tumors that have stopped responding to standard treatments. The goal is to see if it can shrink tumors or slow cancer growth.
San Francisco, CaliforniaAges 18 years+ - NCT03987633Recruiting
Study links health records and samples to understand health gaps
This study asks people affected by a specific illness (or their family member) to share saliva (and sometimes blood) and answer health and quality-of-life questions. The goal is to better understand and reduce health inequality by matching new information with medical records.
Wolverhampton, West MidlandsAges 6 years+ - NCT07307664Recruiting
Increasing genetic testing for cancer patients
This trial aims to increase the use of genetic testing (germline testing) among cancer patients by working with healthcare providers like oncologists and nurses. If you are an oncology care team member treating adults with breast, pancreatic, or colorectal cancer, this study may be for you.
Los Angeles, CaliforniaAges Any age - NCT07517198RecruitingPhase 1
EXS74539 Study for Advanced Solid Tumors
This is an early-stage study testing a new cancer drug called EXS74539 to find the right dose and see how well it works in people with various advanced solid tumors. The drug may help patients whose cancers have stopped responding to standard treatments.
Los Angeles, CaliforniaAges 18 years+ - NCT07446452RecruitingPhase 2
Combination treatment for HER2-low advanced breast cancer
This trial tests a combination of two drugs, disitamab vedotin and bevacizumab, for people with a specific type of advanced breast cancer called HER2-low. It is designed for those who have already been treated with a drug called T-DXd and need further options.
Nanjing, JiangsuAges 18–75 - NCT05800275RecruitingPhase 2
Tucatinib and capecitabine plus spinal trastuzumab for HER2+ cancer
This Phase 2 trial tests a combination of tucatinib and capecitabine (taken by mouth) plus trastuzumab delivered into the spinal fluid, to treat breast cancer that has spread to the leptomeninges (lining around the brain/spinal cord). It may help reduce cancer activity in the spinal fluid and improve symptoms.
BordeauxAges 18 years+ - NCT06125080RecruitingPhase 2
Study of utidelone plus tirelizumab and bevacizumab for advanced triple-negative breast cancer
This trial is testing a combination of three drugs (utidelone, tirelizumab, and bevacizumab) for people with advanced or metastatic triple-negative breast cancer that has not responded to at least one prior chemotherapy. The goal is to see if this combination can shrink tumors or slow the disease.
Wuhan, HubeiAges 18–70 - NCT06636981RecruitingPhase 2
Combination therapy for advanced triple negative breast cancer
This trial tests a new combination of a vitamin A derivative (all-trans retinoic acid), an immunotherapy drug (toripalimab), and chemotherapy for people with advanced triple negative breast cancer that cannot be removed by surgery or has spread. The goal is to see if this combination helps shrink or control the cancer better than current treatments.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT06998108RecruitingPhase 3
A new drug with fulvestrant for HR+/HER2- advanced breast cancer
This trial tests a new investigational drug called BEBT-209 combined with fulvestrant (a hormone therapy) versus placebo with fulvestrant for people with a type of breast cancer that is hormone receptor-positive and HER2-negative. It is for those whose cancer has worsened after previous hormone therapy and has spread locally or to other parts of the body.
Beijing, Beijing MunicipalityAges 18 years+ - NCT07111832RecruitingPhase 3
Study of SHR-A1811 for triple-negative breast cancer
This study tests a new drug called SHR-A1811 for people with triple-negative breast cancer that has spread or come back. It looks at whether the drug can help shrink tumors or slow the cancer's growth.
Beijing, Beijing MunicipalityAges 18–75 - NCT04799535Recruiting
Imaging study to detect and monitor breast changes
This study tests special ultrasound and/or MRI imaging to better detect and track breast cancer and related changes over time. You may be asked to have scans around the time of biopsy or during treatment to help doctors see small blood-vessel changes in the breast.
Rochester, MinnesotaAges 18 years+
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Common questions
- Are there clinical trials for breast cancer?
- Yes. Clin2 currently lists 2,472 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.