Clinical trials
Breast cancer clinical trials
Cancer that forms in the cells of the breast, the most common cancer in women. We’re tracking 2,460 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05762900RecruitingPhase 2
Shorter breast radiation after surgery for low-risk breast cancer
This Phase 2 trial tests a shorter, focused radiation treatment after breast surgery, either alone or with an extra targeted boost. It’s for people with low-risk breast cancer and no spread to distant organs, aiming to keep results while reducing treatment time and side effects.
BeijingAges 35 years+ - NCT05766891RecruitingPhase 2/Phase 3
Nurse-led hypnosis to reduce opioid pain meds for breast surgery
This trial tests whether nurse-delivered hypnosis during breast cancer surgery can help you need less opioid pain medicine after surgery. It may make recovery more comfortable while aiming to lower opioid use.
Houston, TexasAges 18 years+ - NCT05798338Recruiting
Study blood samples and tiny cell particles in breast cancer
This study looks at tiny particles released by cells (called extracellular vesicles) in people with breast cancer. It may help researchers better understand breast cancer and how it behaves, which could improve future testing or treatments.
Pavia, LombardyAges 18–90 - NCT05816655RecruitingPhase 2
Test two hormone treatment combinations for metastatic breast cancer
This Phase 2 study compares two combinations of hormone-blocking drugs plus an anti-cancer targeted pill to see which works better for hormone-receptor positive, HER2-negative metastatic breast cancer. It may help by finding a more effective treatment plan when the cancer has spread.
SeoulAges 19–80 - NCT05894239RecruitingPhase 3
Tested targeted drug for HER2-positive breast cancer with PIK3CA changes
This Phase 3 study tests inavolisib plus Phesgo versus placebo plus Phesgo in people whose breast cancer has both HER2-positive and PIK3CA-mutated tumor markers. The goal is to see if adding inavolisib improves how well the treatment controls the cancer and how safe it is.
Gilbert, ArizonaAges 18 years+ - NCT05913713Recruiting
High-intensity exercise after breast cancer chemotherapy
This study tests whether a structured high-intensity interval exercise program after chemotherapy is safe and helpful for people with early-stage breast cancer. It may improve physical fitness and recovery while they are on typical cancer treatments.
Gainesville, FloridaAges 18–85 - NCT05961111RecruitingEarly Phase 1
Oncolytic virus injection for advanced solid tumors
This early-phase trial tests an injection of a virus designed to attack cancer cells in people with advanced solid tumors. It is meant for situations where standard treatments have not worked (or you can’t/won’t take them) and when doctors can directly deliver the treatment to a tumor spot.
Linyi, ShandongAges 18–75 - NCT05968677Recruiting
Amino acids and flavonoids to reduce chemotherapy side effects
This trial tests whether a specific nutrition supplement (amino acids and flavonoids) can lessen chemotherapy side effects, support nutrition, and improve quality of life in people with non-metastatic breast cancer. It focuses on women who are receiving certain chemotherapy medicines and can eat by mouth and attend regular visits.
PaviaAges 50–70 - NCT05974449RecruitingPhase 2
Probiotics for vaginal dryness in young breast cancer patients
This Phase 2 study tests Lactobacillus vaginal capsules to treat vaginal dryness and tissue changes during breast cancer treatment. It may help by improving vaginal health while you are receiving chemotherapy and ovarian-protecting medicines.
Nanjing, JiangsuAges 18–45 - NCT05976815Recruiting
Exercise added to chemotherapy before breast cancer surgery
This study tests whether adding a supervised physical exercise program around the time of “before-surgery” chemotherapy helps people with newly diagnosed breast cancer. You may be assigned to an exercise group or a usual-care group, and the researchers will compare outcomes between them.
Vila Nova de Gaia, Porto DistrictAges 18 years+ - NCT05981326Recruiting
Computer model to predict chemo response in early breast cancer
This study looks at how well a computer model can predict if breast cancer will completely respond to chemotherapy before surgery. It is for people with early-stage breast cancer who are about to start neoadjuvant chemotherapy.
AngersAges 18 years+ - NCT06037954Recruiting
Mental health support for older adults with cancer
This study offers mental health care for older adults (65+) with breast, colorectal, lung, or prostate cancer who are getting treatment or recently finished. It aims to help people who are also feeling depressed.
New York, New YorkAges 65 years+ - NCT06048835Recruiting
Studying tumor cells in breast cancer patients
This trial looks at tumor cells in the blood of women with breast cancer to understand them better. It may help doctors learn more about how the disease spreads.
Pavia, LombardyAges 18–90 - NCT06055881Recruiting
Using radiation to delay changing treatment for breast cancer
This trial tests whether giving radiation to a few growing spots (1-3) can let you stay on your current drug longer, instead of switching to a new one right away. It's for people with metastatic breast cancer whose disease has been stable for months but now shows limited progression.
Scottsdale, ArizonaAges 18 years+ - NCT06067503RecruitingPhase 2
PET scan to detect hormone therapy resistance in breast cancer
This trial tests a new PET scan (called FFNP) to see if it can find which breast cancers stop responding to hormone therapy early. It's for people with advanced hormone-receptor-positive breast cancer who are starting a new endocrine treatment.
Madison, WisconsinAges 18 years+ - NCT06073418Recruiting
Diet, nutrition, and physical activity in early breast cancer
This study looks at the eating habits, nutrition knowledge, and physical activity of women with early-stage breast cancer. It aims to understand how these factors relate to your health and recovery after surgery.
Aviano, PordononeAges 18 years+ - NCT06079983RecruitingPhase 3
JSKN003 vs. doctor's choice for HER2-low breast cancer
This trial compares a new experimental drug, JSKN003, to standard treatments chosen by your doctor for advanced breast cancer that tests as HER2-low (IHC 1+ or 2+ but not amplified). It's for people whose cancer has spread or can't be removed and who have already had one or two lines of chemotherapy.
Guangzhou, GuangdongAges 18 years+ - NCT06081959RecruitingPhase 3
Study of SKB264 for advanced HR+/HER2- breast cancer
This trial tests a new drug called SKB264 for people with a common type of breast cancer (HR+/HER2-) that has spread or come back and has not responded to at least one round of chemotherapy. It aims to see if this treatment can help shrink tumors or slow the disease.
Beijing, Beijing MunicipalityAges 18–75 - NCT06105684RecruitingPhase 2
Low-dose capecitabine for advanced breast cancer
This trial tests a lower dose of the chemotherapy drug capecitabine in people with advanced breast cancer that is HER2 negative. It aims to see if this gentler dose works well, especially for older or frailer patients who may have more difficulty with standard treatment.
Birmingham, AlabamaAges 60 years+ - NCT06107673RecruitingPhase 2
Pill vs chemo before breast cancer surgery
This study compares taking a daily pill (dalpiciclib with hormone therapy) versus standard chemotherapy before breast cancer surgery. It's for postmenopausal women with a common type of early breast cancer that is strongly hormone-receptor positive and HER2-negative.
Shijiazhuang, HebeiAges 18–75 - NCT06143553RecruitingPhase 3
Paclitaxel micelles for metastatic breast cancer
This trial tests a new form of paclitaxel (a chemotherapy drug) for metastatic breast cancer that is HER2-negative. It may be an option if your cancer has returned or not improved after 2 to 4 previous treatments.
Nanjing, JiangsuAges 18 years+ - NCT06155305Recruiting
Organoid drug test before breast cancer surgery
This trial uses a lab-grown mini-tumor (organoid) from your biopsy to test which chemotherapy drugs work best for your cancer before you have surgery. The goal is to personalize your treatment and improve outcomes.
Hangzhou, ZhejiangAges 18–70 - NCT06169072RecruitingPhase 2
Finding lymph nodes with a tiny dose of magnetic tracer in breast cancer
This trial is testing whether a very small amount of a magnetic tracer called Magtrace can help find lymph nodes that need to be checked for cancer spread during breast cancer surgery.
GothenburgAges 18 years+ - NCT06174363Recruiting
Pain Relief Study for Breast Cancer Surgery
This study tests a combination pain medicine (Maxigesic) to see how well it controls pain after breast cancer surgery. It may help you need fewer opioids after your operation.
SeoulAges 20–70
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Common questions
- Are there clinical trials for breast cancer?
- Yes. Clin2 currently lists 2,460 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.