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
- NCT07441460RecruitingPhase 3
KN026 plus HB1801 after surgery for HER2-positive breast cancer
This trial tests a combination of two drugs (KN026 and HB1801) given after surgery to prevent breast cancer from coming back in people with HER2-positive breast cancer that had spread to lymph nodes. It aims to improve cure rates with a targeted approach.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT07646171Recruiting
Everolimus After Alpelisib for Advanced Breast Cancer
This trial tests a drug called everolimus in women with hormone receptor-positive metastatic breast cancer who have already tried alpelisib (a PI3K inhibitor) combined with hormone therapy. The goal is to see if this next treatment can help control cancer growth.
Tel AvivAges 21 years+ - NCT07047365RecruitingPhase 3
New drug for HER2-positive advanced breast cancer
This trial tests a new medicine called TQB2930 for people with advanced breast cancer that is HER2-positive. It is for those who have already had at least two prior anti-HER2 treatments and are willing to also receive chemotherapy chosen by their doctor.
Bengbu, AnhuiAges 18–75 - NCT07340398RecruitingPhase 2
Testing new drug combos for HER2-positive breast cancer not responding to first therapy
This trial tests a new combination of drugs for people with HER2-positive early breast cancer whose tumors did not respond well to the first round of standard targeted therapy plus chemo. The goal is to see if switching to trastuzumab-rezetecan plus pertuzumab or a different chemo combo (nab-paclitaxel, carboplatin, trastuzumab, and pyrotinib) can shrink the tumor before surgery.
HangzhouAges 18–75 - NCT07396324RecruitingPhase 2
A new drug before surgery for HR+ HER2- breast cancer
This trial tests whether the drug QL1706, given before surgery, can help treat hormone receptor positive and HER2-negative breast cancer. It is for people who have not yet had cancer spread to other parts of the body.
ShanghaiAges 18 years+ - NCT06225505Recruiting
Early detection of triple-negative breast cancer return
This trial uses blood tests to look for signs of cancer returning early in women who had triple-negative breast cancer. If caught early, doctors can start treatment sooner.
AvignonAges 18 years+ - NCT06130826RecruitingPhase 1
Immune therapy and radiation for advanced colorectal or breast cancer
This trial tests a combination of stereotactic body radiation therapy (SBRT) and an immune-boosting drug (M5A-IL2) for colorectal or breast cancer that has spread and is no longer responding to standard treatments. The goal is to activate your immune system to fight the cancer.
Duarte, CaliforniaAges 18 years+ - NCT07401381RecruitingPhase 1
Injectable vs. oral letrozole in early breast cancer
This study compares a new injectable form of the drug letrozole with the standard oral pill. It aims to find out if the injection works as well as the pill for women who have already taken letrozole for their early breast cancer and have finished their initial treatment.
MurciaAges 18–80 - NCT03804944RecruitingPhase 2
Vaccine trial for hormone-positive breast cancer
This Phase 2 study tests an individualized vaccine made from your tumor information to help your immune system fight hormone-positive breast cancer. You may be able to participate if you meet specific hormone-receptor, health, and treatment-timing requirements.
Los Angeles, CaliforniaAges 18–90 - NCT03829553RecruitingPhase 3
Radiation to breast lymph nodes versus standard breast cancer care
This Phase 3 trial tests whether a shorter, more focused radiation treatment to the regional lymph nodes works as well as the current standard approach for certain breast cancers. It may help patients by potentially improving treatment efficiency while keeping cancer control effective.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT03990896RecruitingPhase 2
Talazoparib for metastatic breast cancer with BRCA body DNA changes
This Phase 2 trial tests talazoparib, a targeted cancer medicine, in people with metastatic breast cancer that has a harmful BRCA1 or BRCA2 mutation found in tumor DNA circulating in the blood. If you qualify, the goal is to see how well this treatment works when the mutation is detected this specific way.
San Francisco, CaliforniaAges 18 years+ - 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 - NCT04677816RecruitingPhase 2
Vitamin D supplements for triple-negative breast cancer before surgery
This trial tests whether taking high-dose vitamin D during pre-surgery (neoadjuvant) chemotherapy can increase the chance of having no remaining cancer found at surgery. It focuses on people with vitamin D deficiency and triple-negative breast cancer.
Winston-Salem, North CarolinaAges 18 years+ - NCT04872166RecruitingPhase 1
BTX-A51 for advanced solid tumors and breast cancer patients
This Phase 1 study tests BTX-A51, an experimental treatment, in people with advanced cancers that can’t be cured with standard options. It mainly focuses on safety, side effects, and whether the drug can start helping certain tumors.
Lake Mary, FloridaAges 18 years+ - NCT04925856Recruiting
Monitoring the immune system during breast cancer drug treatment
This study looks at how your immune system changes while you receive standard breast cancer treatments. The researchers measure immune-related signals during your treatment to better understand what may be happening in triple-negative or certain hormone-receptor breast cancers.
BesançonAges 18–85 - NCT06976944RecruitingPhase 2
Pembrolizumab, Paclitaxel, and Bevacizumab for Triple-Negative Breast Cancer
This trial tests a combination of the immunotherapy drug pembrolizumab, the chemotherapy paclitaxel, and possibly the targeted drug bevacizumab for people with triple-negative breast cancer that has returned after treatment. It aims to see if adding bevacizumab improves outcomes for patients whose tumors are PD-L1 positive.
Nagoya, Aichi-kenAges 18 years+ - NCT05212454RecruitingPhase 3
Capecitabine added after surgery for high-risk ER-positive breast cancer
This Phase 3 study tests whether adding capecitabine (a chemotherapy pill) after breast cancer surgery can lower the chance the cancer comes back. It targets people with hormone-receptor–positive and HER2-negative breast cancer who are considered “high risk.”
Hanzhou, ZhejiangAges 18–70 - NCT05225428Recruiting
Video education program based on personal genetic result disclosure
This study tests a video-based education approach that shares information differently depending on someone’s genetic test results. It may help people better understand cancer-related genetic information and what it could mean for them.
Boston, MassachusettsAges 18 years+ - NCT05297617RecruitingPhase 2
Shorter hormone therapy for low-risk postmenopausal breast cancer
This Phase 2 trial studies whether women with very low-risk, hormone-receptor positive breast cancer can safely take hormone therapy for a shorter time. It may help reduce side effects if shorter treatment works as well as the longer standard plan.
LimogesAges 51 years+ - NCT05334732Recruiting
Helping Black breast cancer survivors stick to treatment
This study looks at whether better communication can help newly diagnosed Black breast cancer patients start and follow their recommended treatment plan (like chemotherapy or hormone therapy). It may help you feel more supported so treatment is taken as intended.
Washington D.C., District of ColumbiaAges 18 years+ - NCT05406635Recruiting
Imaging vs blood tests to guide heart-safe HER2 treatment
This trial compares whether special heart imaging or blood tests better helps monitor heart safety while you receive HER2-targeted therapy (like trastuzumab, with or without pertuzumab) plus chemotherapy. It may help doctors catch early heart stress and choose the safest treatment plan for you.
AalborgAges 18–90 - NCT05461768RecruitingPhase 1
BL-M07D1 for HER2-positive or HER2-low breast cancer
This Phase 1 study tests BL-M07D1, a new investigational medicine, in people with HER2-positive or HER2-low breast cancer (and other solid tumors) that can’t be operated on or has spread. It aims to find a safe dose and learn how well the treatment may work based on HER2 levels in tumor tissue.
Fuzhou, FujianAges 18–75 - NCT05470348RecruitingPhase 1
Test drug BL-B01D1 for advanced breast and other solid cancers
This Phase 1 trial tests BL-B01D1 in people with advanced (unresectable or metastatic) breast cancer and certain other solid tumors that have not worked with standard treatment. The goal is to learn if the drug can be given safely and to see whether it shows signs of benefit.
Guangzhou, GuangdongAges 18–75 - NCT05658341Recruiting
Program of exercise, nutrition, and support for breast cancer survivors
This study tests a combined program of physical activity, nutrition guidance, and supportive resources to improve quality of life for breast cancer survivors. It may help you feel better physically and emotionally after completing (or nearly completing) treatment.
La Rochelle, Charentes-maritimesAges 18–72
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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.