Clinical trials
Breast cancer clinical trials
Cancer that forms in the cells of the breast, the most common cancer in women. We’re tracking 2,417 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07511933Recruiting
New PET scan to detect tumor regrowth vs. scar tissue in brain
This study tests a new type of PET scan (a special imaging test) that uses a radioactive tracer to help doctors tell the difference between scar tissue from past radiation and cancer that has come back in the brain. This could help avoid unnecessary surgery or additional treatment.
AmsterdamAges Any age - NCT06184750RecruitingPhase 2
Finding the best tamoxifen dose to lower breast cancer risk
This trial tests different doses of tamoxifen to find the best one for lowering breast cancer risk in premenopausal women. It aims to see if a lower dose works as well as the standard dose with fewer side effects.
Tucson, ArizonaAges 18–55 - NCT06835426Recruiting
Imaging removed tissue during cancer surgery
This study tests a high-resolution PET-CT scanner that takes pictures of tissue removed during surgery to help doctors see if all the cancer has been removed. You might qualify if you are having surgery for a range of cancers including breast, prostate, thyroid, skin, gastrointestinal, or brain tumors.
Ghent, Oost VlaanderenAges 18 years+ - NCT06450873RecruitingPhase 2
Turkey tail mushroom before breast cancer surgery
This trial tests whether taking a turkey tail mushroom supplement before breast cancer surgery can help the immune system fight the cancer. It is for post-menopausal women with a common type of breast cancer (ER-positive, HER2-negative) that is growing at a moderate or faster rate (Ki-67 score of 10% or more).
Scottsdale, ArizonaAges 18 years+ - NCT06817226Recruiting
Breast cancer decision tool study for Latinas
This study tests a decision-making tool for Latina breast cancer survivors or those at high risk. It aims to help you make informed choices about breast surgery and reconstruction options.
Chapel Hill, North CarolinaAges 18 years+ - NCT07540572RecruitingPhase 1
Testing IDE574 safety and effectiveness in advanced solid tumors
This early-stage trial tests a new drug called IDE574 to see if it is safe and effective in treating advanced cancers that have spread or stopped responding to standard treatments. The trial focuses mainly on hormone-receptor positive breast cancer, but also includes lung, prostate, and colorectal cancers.
Plantation, FloridaAges 18–99 - NCT05086692RecruitingPhase 1/Phase 2
Beta-only IL-2 therapy for advanced solid tumors
This Phase 1/2 study tests a beta-only version of IL-2, an immune-stimulating treatment, to shrink or control advanced or metastatic solid tumors. It’s mainly designed to check safety and to see if it can help patients by improving tumor response.
San Diego, CaliforniaAges 18 years+ - NCT07264790RecruitingPhase 1
Minoxidil for Better Blood Flow in Breast Reconstruction
This trial tests whether applying minoxidil (a hair growth medication) to breast tissue during surgery can improve blood flow to the reconstructed breast. It is for women who are having both breasts removed to prevent cancer and have reconstruction on the same day.
Durham, North CarolinaAges 18 years+ - NCT07264998Recruiting
Gut bacteria study in breast cancer patients on Abemaciclib
This study looks at how gut bacteria changes in people taking Abemaciclib (a breast cancer drug) and whether that relates to diarrhea. It may help find ways to prevent or manage this side effect.
Wuhan, HubeiAges 18–75 - NCT07321015RecruitingPhase 2
Fluzoparib after platinum for advanced triple-negative breast cancer
This trial tests the PARP inhibitor fluzoparib as a maintenance treatment for women with advanced triple-negative breast cancer whose disease responded or stabilized after platinum-based chemotherapy. The goal is to see if taking fluzoparib daily can delay cancer growth.
TianjinAges 18–75 - NCT03784651Recruiting
How breast cancer treatment changes metabolism and bone
This study looks at how standard breast cancer treatments affect your body’s metabolism and bones in postmenopausal people with early-stage breast cancer. It may help doctors better predict and prevent bone and metabolic side effects from treatment.
Copenhagen, DanmarkAges 50–70 - NCT06272864Recruiting
A study looking at genetics of certain advanced cancers
This study tests the genes of your cancer to learn more about advanced breast, lung, melanoma, or sarcoma tumors. It may help doctors find better ways to treat these cancers in the future.
Rogers, ArkansasAges 18 years+ - NCT07287917RecruitingPhase 1/Phase 2
Testing a new drug combo for advanced breast cancer or melanoma
This trial tests a new combination of drugs (AMXT 1501, DFMO, and standard therapies) for people with advanced solid tumors, specifically breast cancer (ER+ HER2-) or melanoma that has progressed after other treatments. The goal is to see if this combination can help shrink tumors or slow their growth.
Tucson, ArizonaAges 18 years+ - NCT07270679Recruiting
Genetic markers for ovarian damage after chemo
This study is looking for genetic markers that may help predict how chemotherapy affects the ovaries. It's for women who had breast cancer or lymphoma, froze their ovarian tissue before treatment, and finished that treatment at least 6 months ago.
Bologna, BolognaAges 18–38 - NCT05416164Recruiting
Testes less radiation after a complete response to medicines
This study checks whether some people with breast cancer who have no remaining cancer after medicine (neoadjuvant systemic therapy) can safely receive less radiation. It may help reduce side effects while still keeping cancer controlled.
Amsterdam, North HollandAges 18 years+ - NCT07113613RecruitingPhase 2
Can some breast cancer patients skip extra radiation after surgery?
This trial tests whether women who have a complete response to chemotherapy before breast-conserving surgery can safely skip a special radiation boost to the tumor bed. It aims to reduce unnecessary treatment side effects while maintaining good outcomes.
Nanjing, JiangsuAges 30–75 - NCT07046455Recruiting
Trop-2 PET scan for advanced triple-negative breast cancer
This trial uses a special PET scan to find a protein called Trop-2 on your cancer cells. It helps doctors decide if a targeted treatment (Trop-2 ADC) might work for you.
BeijingAges 18–75 - NCT04824027Recruiting
Breast ultrasound testing during chemotherapy for breast cancer
This study looks at how breast tissue changes during chemotherapy given before surgery (neoadjuvant therapy). It may help doctors better understand treatment effects by taking special breast measurements.
New York, New YorkAges 18 years+ - NCT06841354RecruitingPhase 3
Sac-TMT alone or with pembrolizumab for advanced triple-negative breast cancer
This trial tests a new drug, Sac-TMT, given alone or with an immunotherapy drug (pembrolizumab) for people with advanced triple-negative breast cancer who have not yet received any treatment for advanced disease. The goal is to see if this combination can shrink tumors or slow the cancer's growth.
Mobile, AlabamaAges 18 years+ - NCT06636370Recruiting
Extra screening for women with dense breast tissue
This trial offers extra screening (MRI or contrast-enhanced mammogram) for women with extremely dense breast tissue who have had a normal mammogram. The goal is to see if these extra tests can find cancers that might be missed by standard mammography.
UtrechtAges 49–72 - NCT06596018RecruitingPhase 1/Phase 2
Radiation therapy for breast cancer not responding to chemo
This trial tests whether adding a special type of radiation (SBRT) can help people whose breast cancer did not shrink after two rounds of standard chemotherapy. It's for people with stage II or III breast cancer that is still growing or stable.
Hangzhou, ZhejiangAges 18–75 - NCT06291896Recruiting
Testing microwave imaging for breast cancer screening
This study tests a new, safe microwave-based device (MammoWave) to screen for breast cancer. It compares the device's results with standard mammograms to see if it can find cancer early in women at average risk.
Genova, GenovaAges 45–74 - NCT06188520RecruitingPhase 1/Phase 2
Study of a new drug for advanced solid tumors in women
This trial tests a new drug, AZD8421, alone or with other treatments, for women with advanced solid tumors that have not responded to prior therapies. It aims to find a safe dose and see if it can help shrink or control the cancer.
St Louis, MissouriAges 18 years+ - NCT06081244RecruitingPhase 3
Testing sacituzumab govitecan with or without pembrolizumab for early triple-negative breast cancer
This trial tests a two-drug combination (sacituzumab govitecan and pembrolizumab) versus sacituzumab govitecan alone before surgery for low-risk, triple-negative breast cancer that hasn't spread. The goal is to see which approach works better at shrinking tumors.
Baden-Baden, Baden-WurttembergAges 18 years+
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Common questions
- Are there clinical trials for breast cancer?
- Yes. Clin2 currently lists 2,417 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.