Clinical trials
Breast clinical trials
Below are recruiting breast clinical trials, each written for real people, not researchers. We’re tracking 2,691 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07616453RecruitingPhase 2
New Drug Plus Hormone Therapy for Hormone-Responsive Breast Cancer
This trial tests whether a new drug called culmerciclib, combined with hormone therapy, works better than hormone therapy alone for early-stage breast cancer that grows quickly and responds to estrogen. The goal is to shrink tumors before surgery and improve outcomes.
Hangzhou, ZhejiangAges 18–75 - NCT07602374Recruiting
Written vs. Video Education for Breast Reconstruction Surgery
This study compares two ways of learning about breast reconstruction options after mastectomy—reading written materials versus watching videos. Researchers want to see which method helps patients make better-informed decisions and feel more confident about their choice.
San Francisco, CaliforniaAges 18 years+ - NCT04281641Recruiting
Testing marker-guided treatment before surgery for HER2-positive breast cancer
This trial studies how well a HER2-focused treatment plan works before surgery (“neoadjuvant” therapy) for operable HER2-positive breast cancer. It also uses tumor tissue tests to find markers that may predict who benefits most.
Shanghai, Shanghai MunicipalityAges 18–70 - NCT07616427RecruitingPhase 2
New drug plus hormone therapy for HER2-positive breast cancer
This study tests a new drug called fovinaciclib combined with hormone therapy and HER2-targeting drugs for early-stage breast cancer that has specific markers (HR-positive and HER2-positive). The goal is to shrink tumors before surgery and improve outcomes.
Nanjing, JiangsuAges 18–75 - 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 - NCT05975359Recruiting
Testing a fluid-drain device during breast implant reconstruction
This study tests a new way to measure and manage fluid drainage during immediate breast reconstruction with implants. It may help surgeons reduce complications and improve the reconstruction experience after mastectomy.
Palo Alto, CaliforniaAges 18–65 - NCT07597629RecruitingPhase 2
SYS6023 combination therapy for advanced breast cancer
This trial tests a new drug combination (SYS6023) for advanced breast cancer that has spread or cannot be surgically removed. The treatment targets a protein called HER3, which may help stop cancer growth in patients whose cancer has progressed despite previous treatments.
Harbin, HeilonjiangAges 18 years+ - NCT07180082RecruitingPhase 2
Pyrotinib for HER2-positive advanced breast cancer
This trial tests whether taking pyrotinib continuously or intermittently can help people with HER2-positive advanced breast cancer that has spread. It is for those who have already received prior treatment for their advanced disease.
ShanghaiAges 18 years+ - NCT05759572RecruitingPhase 2
Apatinib plus hormone therapy for advanced breast cancer
This Phase 2 study tests whether apatinib combined with a CDK4/6 inhibitor and hormone therapy can better control advanced hormone receptor–positive, HER2-negative breast cancer. It may help shrink tumors or slow their growth, especially in cases that can’t be fully treated with surgery or radiation.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT05975372Recruiting
Smart breast expander device for two-stage breast reconstruction
This study tests a new “smart” expander device used during two-step breast reconstruction or breast augmentation. It may help doctors improve how tissue expanders are managed before a final implant is placed.
Palo Alto, CaliforniaAges 18–65 - 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+ - NCT06696378Recruiting
Melatonin, exercise, and breast cancer wellness study
This study tests if taking melatonin and doing a supervised exercise program together can improve health and well-being in women who had breast cancer 5 or more years ago and have gone through menopause. It aims to find a safe, natural way to feel better after treatment.
Soria, SoriaAges 60–80 - NCT07130383RecruitingPhase 2
Study of two experimental drugs for advanced breast cancer and other solid tumors
This trial tests a combination of two investigational drugs, MHB036C and MHB039A, in people with advanced breast cancer or other solid tumors that have spread. The goal is to see if this combination can shrink tumors and help patients live longer.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT05901428RecruitingPhase 3
Check if two breast cancer treatments work better after surgery
This trial compares two treatment approaches in people with high-risk hormone-positive, HER2-negative breast cancer that has spread to certain lymph nodes. It looks at which option works best to lower cancer returning and to control the disease after surgery and initial chemotherapy.
Shanghai, Shanghai MunicipalityAges 18–70 - NCT06711055Recruiting
Taxane plus targeted therapy for early HER2-positive breast cancer
This trial tests a taxane chemotherapy combined with a targeted therapy for women with early-stage, HER2-positive breast cancer that has not spread to lymph nodes. It aims to provide a tailored treatment based on tumor size and risk factors.
Beijing, Beijing MunicipalityAges Any age - NCT06671262RecruitingPhase 2
Immunotherapy plus radiation before breast cancer surgery
This trial tests combining two treatments—an immunotherapy drug (Toripalimab) and radiation—before surgery for a certain type of breast cancer (HR+, HER2-negative) that has spread to lymph nodes. The goal is to see if this combination helps shrink the tumor more than standard therapy alone.
Hangzhou, ZhejiangAges 18–85 - NCT05831878Recruiting
Drug RC48 for HER2-low or HER2-ultralow breast cancer
This trial tests RC48, an antibody-drug treatment, for people with advanced breast cancer that cannot be cured or removed, specifically HER2-low (or HER2-ultralow) tumors. It may help by targeting cancer cells with this “HER2-low” trait while limiting spread in the body.
ShanghaiAges 18 years+ - NCT06056583RecruitingPhase 4
How cimetidine passes into breast milk
This study looks at how the drug cimetidine gets into breast milk after healthy mothers take it. The goal is to find out how much reaches the baby and how it affects their body.
Seattle, WashingtonAges 2 weeks–50 years - NCT07135596Recruiting
OviTex PRS mesh for breast reconstruction after mastectomy
This study tests a special mesh called OviTex PRS used during immediate breast reconstruction after mastectomy. The goal is to see if it is safe and effective for supporting the new breast implant.
Bowling Green, KentuckyAges 22–75 - NCT06776458Recruiting
Aromatase inhibitor effects on heart and brain health in breast cancer
This study looks at how aromatase inhibitors (a type of hormone therapy for breast cancer) affect your heart and brain health over time. It compares women with breast cancer who have taken these drugs to healthy women of similar age.
Toronto, OntarioAges Any age - 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+ - NCT06100263Recruiting
Breast cancer resilience exercise program for Black women
This study tests a personalized exercise program designed to help Black women build strength and resilience after breast cancer treatment. It aims to see if guided exercise can improve physical and emotional well-being.
Ann Arbor, MichiganAges 18 years+ - NCT07591090RecruitingPhase 2
Drug combination study for advanced HER2-negative breast cancer
This study tests whether combining two new drugs (AK146D1 and AK112) can help people with advanced breast cancer that is HER2-negative (a type that doesn't have too much of a specific growth protein). The goal is to see if this combination can shrink tumors and improve survival.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT05761470RecruitingPhase 2
Test before-surgery cancer treatment for breast tumors with DNA repair gene changes
This trial tests a combination of medications given before surgery (neoadjuvant therapy) for early breast cancer. It is designed for tumors with certain “DNA repair” gene mutations and aims to improve treatment results while shrinking or controlling the cancer.
Guangzhou, GuangdongAges 18–75
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Common questions
- Are there clinical trials for breast?
- Yes. Clin2 currently lists 2,691 recruiting breast 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 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 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.