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
- NCT04261829Recruiting
Full method for breast reconstruction after mastectomy
This trial tests a “full breast reconstruction” approach for people who are planning or have had a breast removal (mastectomy). It may help improve how reconstruction is done and whether you can use the external expansion device as part of the process.
Maastricht, LimburgAges 18 years+ - NCT04291378Recruiting
Proton versus standard radiation for early breast cancer
This trial compares two types of radiation—proton therapy and standard photon therapy—for early breast cancer after surgery. It’s mainly for people whose usual radiation plan would put a higher dose to the heart and/or lungs, aiming to reduce that exposure.
AalborgAges 18 years+ - NCT04333706RecruitingPhase 1/Phase 2
Sarilumab plus capecitabine for certain breast cancers
This trial studies whether adding sarilumab to capecitabine can shrink or control metastatic or high-risk breast cancer that lacks HER2 and is either triple-negative or hormone-resistant. It aims to find a safe dose first, then look at how well the treatment works compared with historical results.
Los Angeles, CaliforniaAges 18–99 - NCT04342546Recruiting
Radiation skin side-effect test after mastectomy with implant
This trial looks at a test meant to predict how likely you are to develop side effects from radiation to the chest wall after mastectomy. It is designed for people getting immediate breast reconstruction using an implant, so treatment planning may be safer and more personalized.
DijonAges 18 years+ - NCT04356209RecruitingPhase 2
Pravastatin for severe radiation breast scar tissue, with e-reports
This trial tests whether pravastatin can improve severe radiation-related breast scarring and breast-related quality of life. It also studies whether using an electronic patient questionnaire (e-PRO) helps patients’ outcomes and support during treatment.
MontpellierAges 18 years+ - NCT04428528Recruiting
Ultrasound-like pictures that track breast tumors during chemotherapy
This study uses a special light-based imaging scan to learn more about breast masses and how tumors may respond to chemotherapy before surgery. The scan is meant to help doctors better characterize tumors and potentially track treatment response.
Toronto, OntarioAges Any age - NCT04590560Recruiting
Best timing for breast screening in women ages 45–49 and 70–74
This study looks at the best time interval for breast cancer screening (mammograms) for women in two age groups. The goal is to reduce missed cancers while avoiding unnecessary tests.
Meldola (FC), FCAges 45–49 - NCT04616300Recruiting
Exercise program to support brain function during breast cancer chemo
This trial studies whether a structured exercise program can help protect or improve thinking and memory in people with breast cancer while they are starting chemotherapy after surgery. It may help with “chemo brain” by targeting brain function during treatment.
Toronto, OntarioAges 18–65 - NCT04665882Recruiting
Prediction tool for arm swelling after breast cancer surgery
This trial tests a prediction tool (a “nomogram”) to estimate who is at risk of developing breast cancer–related lymphedema, or long-term arm swelling, after surgery. If you fit the surgery and lymph node criteria, your information may help personalize follow-up and prevention.
Wuhan, HubeiAges 18–80 - NCT04671511Recruiting
Check targeted lymph node surgery for early breast cancer
This study tests a more focused surgery approach to remove lymph nodes in the armpit for people with early breast cancer that has been found in 1–2 axillary lymph nodes. It may help guide more precise treatment while checking how well this approach works.
Montreal, QuebecAges 18 years+ - NCT04690439Recruiting
Light therapy to treat breast cancer–related arm swelling
This trial studies whether a noninvasive light-based treatment (photobiomodulation) can reduce breast cancer–related lymphedema, which is swelling in the arm or chest area due to lymph fluid buildup. If you qualify, you’ll be asked to follow a set treatment and follow-up schedule to see if symptoms improve safely.
Hasselt, LimburgAges 18 years+ - NCT04703244Recruiting
Testing patient tumor samples to create research models in breast cancer
This study collects tumor-related samples from people with invasive breast cancer who are having surgery after treatment before surgery. Researchers use your samples to create lab models (called PDX and organoids) to help study breast cancer and find better future treatments.
Rochester, MinnesotaAges 18 years+ - NCT04771520RecruitingPhase 2
Avapritinib for tumors with specific KIT or PDGFRA changes
This Phase 2 trial studies avapritinib, a targeted medicine, for people whose cancer has specific KIT or PDGFRA genetic changes. It may help shrink or slow growth of certain advanced cancers, including some brain tumors, when standard treatments have not worked or for specific glioblastoma cases.
Houston, TexasAges 18 years+ - 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+ - NCT04852887RecruitingPhase 3
Testing shorter breast radiation after low-risk hormone breast cancer
This Phase 3 trial studies whether “less intense” radiation can work as well as standard radiation for certain early-stage hormone receptor–positive, HER2-negative breast cancers that have a low Oncotype DX score. It may help reduce treatment burden while keeping cancer control strong.
Birmingham, AlabamaAges 50–70 - NCT07600164RecruitingPhase 4
Real-world study of pyrotinib treatment for advanced HER2-positive breast cancer
This study follows patients with advanced breast cancer that has a protein called HER2 to see how well pyrotinib (a targeted drug) works when used in routine clinical practice. You'd be tracked over time to understand how this treatment affects your cancer and quality of life.
Beijing, Beijing MunicipalityAges 18 years+ - NCT04960839Recruiting
Preventive radiation to the other breast after breast cancer surgery
This study looks at whether “preventive” radiation to your other (opposite) breast can lower the chance of future breast cancer in people at higher genetic risk. You must have had surgery for early-stage breast cancer and agree to avoid removing the other breast and ovaries.
Jiangxi, JiangxiAges 30–70 - NCT04965766RecruitingPhase 2
Study drug for HER2-negative, advanced breast cancer after prior treatment
This Phase 2 trial tests patritumab deruxtecan (U3-1402) in people with HER2-negative, hormone-receptor positive (HR+) breast cancer that cannot be removed by surgery or has spread. It’s for cancers that have progressed despite endocrine therapy plus a CDK4/6 inhibitor, aiming to shrink tumors and control the disease.
DijonAges 18 years+ - NCT04993014RecruitingPhase 2
De-escalating treatment after HER2-positive breast cancer responds
This study looks at whether some people with HER2-positive breast cancer can safely receive less (de-escalated) treatment after they finish chemotherapy plus HER2-targeted drugs before surgery. It specifically focuses on people whose cancer shows a complete response on the surgery pathology report.
São PauloAges 18 years+ - NCT05029999RecruitingPhase 1
Test drugs for HER2-negative advanced breast cancer
This Phase 1 trial tests a combination of immune-targeting drugs (a CD40 medicine and a substance that helps immune cells act) plus chemotherapy in people with HER2-negative advanced breast cancer that has progressed. It aims to find a safer dose and see whether the treatment can shrink tumors or slow the cancer.
Chicago, IllinoisAges 18–99 - NCT05035745RecruitingPhase 1/Phase 2
Selinexor plus talazoparib for advanced triple-negative breast cancer
This trial tests selinexor plus talazoparib in people with advanced, treatment-resistant solid tumors and, separately, advanced triple-negative breast cancer. It aims to see whether this combination can shrink tumors or slow their growth when standard options have not worked.
SingaporeAges 18–99 - NCT05142475RecruitingEarly Phase 1
Study of GC101 tumor-infiltrating cells for advanced breast cancer
This early-phase study tests an experimental cell therapy made from your tumor’s immune cells (TILs) for advanced breast cancer. It may help shrink tumors or improve how long people stay in remission, but it’s still being studied for safety and effectiveness.
ShanghaiAges 18–75 - NCT05318469RecruitingPhase 1/Phase 2
Ivermectin with immunotherapy for metastatic triple-negative breast cancer
This trial studies whether ivermectin, given together with immunotherapy (balstilimab or pembrolizumab), can help treat metastatic triple-negative breast cancer. It mainly looks at safety first, and may also explore how well the treatment works for people whose cancer has spread.
Los Angeles, CaliforniaAges 18 years+ - NCT05346510Recruiting
Prone CT and ultrasound to check underarm lymph nodes
This study checks how well CT scans and ultrasound (done while lying face-down) can identify underarm lymph node involvement in people with breast cancer before surgery. If accurate, this may help guide whether additional lymph node surgery is needed.
Shenyang, LiaoningAges 18–70
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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.