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
- NCT04022616Recruiting
Study immune cells in breast cancer patients
This study looks at how certain immune cells behave in people with breast cancer. It may help researchers understand the disease and how the immune system affects it.
Columbus, OhioAges 18 years+ - NCT04025164Recruiting
Shorter vs standard breast radiation after lumpectomy
This study compares a shorter course of radiation to a standard longer course after breast-conserving surgery (lumpectomy). It’s meant to see which schedule works just as well while focusing on safety and cancer control.
Guiyang, GuizhouAges 18–70 - NCT04050423Recruiting
Ultrasound scans to better study breast lumps
This study tests whether special ultrasound pictures and “spectroscopy” measurements can help characterize breast masses that may be cancer. It may help doctors tell more about what a lump is and guide next steps.
Toronto, OntarioAges Any age - NCT04050228Recruiting
Ultrasound test to tailor chemotherapy for breast cancer
This trial tests whether a special ultrasound measurement can help doctors choose the right chemotherapy plan during treatment for breast cancer. It may help avoid under- or over-treatment by adjusting care based on the ultrasound results.
Toronto, OntarioAges 18 years+ - NCT04052893Recruiting
Surgery comparison for extensive breast duct cancer after mastectomy
This trial studies whether two different surgery approaches after modified radical mastectomy improve long-term disease control and quality of life for people with extensive breast duct cancer. It may help you understand which surgery plan could lead to better outcomes and recovery.
Benxi, LiaoningAges 45–75 - NCT04065321Recruiting
Blood test for tumor cells in certain early breast cancers
This trial looks at a blood test that may detect “circulating tumor cells” (cancer cells that can travel in the bloodstream) in people with a specific type of breast cancer. It may help doctors better track the disease and guide treatment for people whose tumors have certain hormone and growth-factor features.
Shenyang, LiaoningAges 18–60 - NCT04069884Recruiting
Avoid extra lymph-node radiation for certain node-positive breast cancers
This trial tests a way to decide whether you can safely receive less radiation to lymph nodes after surgery for breast cancer that has spread to nearby nodes. If you qualify as “low risk,” the goal is to reduce radiation exposure while keeping cancer control safe.
Guangzhou, GuangdongAges 18–70 - NCT04075305Recruiting
Study measuring radiation treatment outcomes with an MR-Linac
This study follows what happens when radiation treatment is guided using an MR-Linac (a special machine that combines MRI imaging with radiation). It may help improve how radiation therapy is planned and assessed, especially for people who can safely have MRI scans.
Pittsburgh, PennsylvaniaAges 18 years+ - NCT04079049RecruitingPhase 3
Local treatment for breast cancer spread to the liver
This study tests a local (targeted) approach for breast cancer that has spread to the liver. It looks at whether treating liver metastases with planned liver surgery, along with standard cancer treatment before and after, can improve outcomes.
UmeåAges 18 years+ - NCT04101656Recruiting
Shorter breast radiation for early breast cancer
This trial studies a radiation technique that treats only part of the breast using a faster schedule. It may help some people with early breast cancer after breast-conserving surgery by delivering effective treatment with less radiation to the rest of the breast.
SevilleAges 40 years+ - NCT04134780Recruiting
Ultrasound tests to spot early breast cancer treatment response
This study uses special ultrasound imaging (and may use MRI results) to look for early signs of how locally advanced breast cancer responds to chemotherapy, with or without radiation. If the imaging changes early, it could help doctors adjust treatment sooner.
Houston, TexasAges 18 years+ - NCT04136782RecruitingPhase 4
Tests two chemo drug combinations for triple-negative breast cancer
This Phase 4 trial compares two chemotherapy combinations to treat stage II–III triple-negative breast cancer. It looks for which regimen works better and is tolerated in people with measurable tumors and good overall health.
Harbin, HeilongjiangAges 18–70 - 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 - NCT04158843Recruiting
Local surgery vs comfort treatment for limited breast cancer spread
This trial compares a more direct local treatment (targeting a small, limited spot) versus a comfort-focused palliative approach for breast cancer that has spread only to one side of the upper arm bone or breastbone area. It aims to see which approach works better while keeping side effects manageable.
Hangzhou, ZhejiangAges 18–75 - NCT04159142RecruitingPhase 2
Testing two chemo combos for advanced triple-negative breast cancer
This Phase 2 trial compares two chemotherapy combinations to see which works better for advanced triple-negative breast cancer. You would be asked to join one treatment arm based on study assignment and be followed for response and side effects.
Shijiazhuang, HebeiAges 18–70 - NCT04159818RecruitingPhase 2
Adding immune treatments to improve checkpoint drug response in TNBC
This Phase 2 trial tests strategies meant to “prime” the immune system so that immune checkpoint medicines may work better in people with triple-negative breast cancer that has spread (or can’t be fully cured). You might be considered if your cancer has measurable areas that can be biopsied and you meet specific health and prior-treatment rules.
AmsterdamAges 18 years+ - NCT04215003RecruitingPhase 1/Phase 2
Study breast cancer treatment guided by tumor pathway tests
This trial tests new treatment given before surgery for certain stage IIb–IIIc breast cancers. It uses results from your tumor to guide the treatment plan and aims to improve how well the therapy works before the operation.
Shanghai, Please SelectAges 18–70 - NCT04234386Recruiting
Short-course targeted radiation for early breast cancer
This trial tests a radiation plan called GammaPod to treat early breast cancer with precise targeting. It may help patients by delivering the treatment in a more focused way, while checking safety and tumor control in the smallest, well-defined cancers.
Baltimore, MarylandAges 45 years+ - NCT04261244RecruitingPhase 3
Neoadjuvant radiation study for one-sided breast cancer
This Phase 3 study tests a specific plan that combines chemotherapy (and sometimes targeted medicines) with radiation before surgery for one breast. It may help shrink breast cancer and improve treatment timing, based on how well tumors respond.
AhausAges 18 years+ - NCT04263298RecruitingPhase 3
Fulvestrant or capecitabine after chemo for metastatic breast cancer
This Phase 3 trial compares two medicines—fulvestrant versus capecitabine—as “maintenance” treatment after your first chemo helps control metastatic breast cancer. It aims to see which one helps people live longer with better disease control.
Guangzhou, GuangdongAges 18–75 - NCT04265937Recruiting
Genetic screening for breast cancer risk in Chinese communities
This study checks certain genes using blood or mouth (oral) samples in people who already have breast cancer. The goal is to better understand genetic risk in Chinese communities and help guide future care.
Shanghai, Shanghai MunicipalityAges Any age - NCT04282122Recruiting
Personalized radiation plan for older women with early breast cancer
This trial uses individual measures of how sensitive your body’s tissues are to radiation to guide after-surgery breast radiation treatment. It aims to keep treatment safe and effective while tailoring the plan to each person.
Montpellier, OccAges 65 years+ - NCT04289935Recruiting
Vacuum biopsy before surgery to check treatment response
This trial studies a special vacuum-assisted biopsy taken just before breast surgery to see how well pre-surgery (neoadjuvant) chemotherapy worked. It may help doctors understand whether patients truly had a complete or near-complete response on scans, which can guide next steps.
SalzburgAges 18 years+ - NCT04303988RecruitingPhase 2
Trial for brain metastases from triple-negative breast cancer
This Phase 2 study tests a treatment for people with triple-negative breast cancer that has spread to the brain. It’s designed for situations where the cancer can’t be safely cured with surgery or focused radiation.
Shanghai, Shanghai MunicipalityAges 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.