Clinical trials
Breast cancer clinical trials
Cancer that forms in the cells of the breast, the most common cancer in women. We’re tracking 2,472 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06120283RecruitingPhase 1
Study of BGB-43395 alone or with other drugs for advanced solid tumors
This study tests a new drug called BGB-43395 alone or with other treatments for advanced solid tumors, especially breast cancer. The goal is to find the best dose and see how well it works. It may be an option if your cancer has not responded to other treatments.
Denver, ColoradoAges 18 years+ - NCT06058377RecruitingPhase 3
Adding immunotherapy to chemo for stage II-III breast cancer
This trial tests whether adding the immunotherapy drug durvalumab to standard chemotherapy works better than chemo alone for people with hormone receptor positive, HER2 negative breast cancer that is stage II or III and has a high-risk genetic score (MammaPrint High Risk 2).
Birmingham, AlabamaAges 18 years+ - NCT07391774RecruitingPhase 3
Hormone therapy with or without chemo for early breast cancer
This trial tests whether skipping chemotherapy and using only hormone therapy with a drug called ribociclib works as well as chemotherapy followed by hormone therapy with ribociclib for certain early breast cancers that have a low risk of coming back.
Jonesboro, ArkansasAges 18 years+ - NCT07310420RecruitingPhase 1
Evaluating ovarian suppression with ZOLADEX in premenopausal breast cancer
This trial tests a medication (ZOLADEX) to suppress ovarian function in premenopausal women with hormone receptor-positive breast cancer, either early-stage or advanced. The goal is to see how well it works and how safe it is.
Hot Springs, ArkansasAges 18–55 - NCT07227831Recruiting
TheraBionic device for advanced hormone-positive breast cancer
This trial tests a device called TheraBionic P1, which uses low-level radiofrequency energy to treat advanced breast cancer that has stopped responding to standard treatments. It may offer a new option for people who have exhausted other therapies.
Bay City, MichiganAges 22 years+ - NCT04589468Recruiting
Exercise for cancer survivors at high risk
This study tests whether a structured exercise program can help prevent cancer from coming back in people who have been treated for certain solid tumors (colorectal, ovarian, lung, or breast cancer). If you've completed surgery and adjuvant therapy within the past 2 years and are currently not exercising much, you may be eligible. Participation involves following an exercise plan and regular check-ins.
Durate, CaliforniaAges 18 years+ - NCT06827236RecruitingPhase 1/Phase 2
Testing a new combination treatment for advanced breast cancer
This study tests two experimental drugs, BNT323 and BNT327, together in people with advanced breast cancer. The goal is to find the best dose and see if the combination is safe and helpful.
Beverly Hills, CaliforniaAges 18 years+ - NCT04501419Recruiting
Mobile ultrasound test to help diagnose breast cancer
This study checks whether a tablet-based ultrasound can find breast lumps that look suspicious for cancer. If it works well, it could help diagnose breast cancer faster in Nigeria where patients may need a biopsy or surgery next.
Ile-IfeAges 18 years+ - NCT06949410RecruitingPhase 1
HER2 vaccine study for high-risk breast cancer
This trial tests a vaccine designed to help the immune system fight remaining HER2-positive breast cancer cells after standard treatment. It is for people who have completed at least six months of HER2-targeted therapy and still have a high risk of the cancer coming back.
Indianapolis, IndianaAges 18 years+ - NCT07630961RecruitingPhase 1
New PET Imaging Scans for Advanced Solid Tumors
This trial tests two new radioactive imaging scans (called PET scans) designed to better detect certain advanced cancers like pancreatic, lung, breast, colon, or soft-tissue tumors. The goal is to see if these scans help doctors find and track cancer more accurately than standard imaging.
Odense CAges 18 years+ - NCT06123988Recruiting
Fasting and exercise for advanced breast cancer
This study looks at whether fasting overnight and/or doing exercise can help improve fatigue and other quality-of-life measures in women with advanced hormone receptor positive breast cancer who are already taking a CDK4/6 inhibitor. Participation may involve following a fasting or exercise plan for a period of time.
Phoenix, ArizonaAges 18 years+ - NCT07383506RecruitingPhase 1
Study of a targeted pill for PIK3CA-mutated advanced cancers
This trial tests a new pill (CGT6297) that targets cancer cells with a specific PIK3CA gene change. It may be an option for people with certain advanced solid tumors, including endometrial or breast cancer, after standard treatments have stopped working.
Scottsdale, ArizonaAges 18 years+ - NCT07109817RecruitingPhase 2
Desloratadine to prevent nerve damage from taxane chemo in breast cancer
This trial tests if the allergy medicine desloratadine can prevent nerve damage (numbness, tingling, pain) caused by taxane chemotherapy in people with early-stage breast cancer. Taking desloratadine daily during chemo may help protect your nerves.
The Bronx, New YorkAges 18 years+ - NCT05483491RecruitingPhase 1
TCR cell therapy for select metastatic cancers
This Phase 1 trial tests a personalized immune-cell treatment (TCR-T cells) for certain metastatic cancers. It targets cancers that carry a specific marker and requires patients to have a specific immune-system match, aiming to improve cancer control when standard options were already tried.
New Brunswick, New JerseyAges 18 years+ - NCT07102381RecruitingPhase 2
Zanidatamab plus chemo before surgery for HER2+ breast cancer
This trial tests a new drug called zanidatamab combined with chemotherapy to shrink HER2-positive breast cancer before surgery. It may help improve treatment outcomes for people with stage 2 or 3 breast cancer that has not spread.
Long Beach, CaliforniaAges 18 years+ - NCT07766018RecruitingPhase 2
Elacestrant for advanced or metastatic breast cancer
This trial tests a new hormone therapy pill, elacestrant, for people with a specific type of breast cancer (ER+, HER2-) that has a certain genetic change (ESR1 mutation) and has grown despite previous hormone therapy. The goal is to see if this drug can help control the cancer.
IseharaAges 18 years+ - NCT07776301Recruiting
One-stop radiation therapy for breast cancer using a CT-Linac machine
This study tests a faster, all-in-one radiation therapy approach for breast cancer using a CT-Linac machine. It aims to make treatment more convenient and may be an option if you need radiation before, after, or instead of surgery.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT07776613RecruitingPhase 2
Bone strengthening drug for breast cancer with osteoporosis
This study tests a new drug called romosozumab, which may help strengthen bones and reduce fractures in people with breast cancer that has spread to the bones and who also have osteoporosis. If you are on hormone therapy and have weak bones, this could help protect your bones.
Basking Ridge, New JerseyAges 18 years+ - NCT05269381RecruitingPhase 1/Phase 2
Personalized cancer vaccine with pembrolizumab for advanced solid tumors
This trial tests a personalized vaccine made from your tumor's unique markers, combined with the drug pembrolizumab, to help your immune system fight cancer. It is for people with advanced solid tumors who have already tried standard treatments.
Jacksonville, FloridaAges 16 years+ - NCT07780240Recruiting
Understanding arm band pain after breast cancer surgery
This study looks at how common axillary web syndrome (a rope-like band in the armpit after breast cancer surgery) is, who gets it, and how it affects arm function. It aims to help doctors better predict and manage this condition.
Istanbul, BAGCILARAges 18–80 - NCT07067138Recruiting
Genetic testing to guide treatment for advanced breast cancer
This study looks at the genes in your cancer to find a treatment that might work better for you. It tests your tumor sample to match you with a drug that targets your cancer's specific weaknesses.
Bethesda, MarylandAges 18–120 - NCT07641985Recruiting
Fat grafting for breast reconstruction after cancer and radiation
This study compares two ways to rebuild the breast after mastectomy and radiation using your own tissue: fat grafting alone, or a more complex surgery using abdominal tissue. The goal is to see which method gives better results and quality of life.
Maastricht, LimburgAges 18 years+ - NCT06382948RecruitingPhase 3
Elacestrant and everolimus for ESR1-mutant advanced breast cancer
This trial tests a new combination of two oral targeted therapy pills (elacestrant and everolimus) for people with a specific type of advanced breast cancer. It is for those whose cancer has an ESR1 mutation and has stopped responding to CDK4/6 inhibitors and hormone therapy.
InnsbruckAges 18 years+ - NCT07191717RecruitingPhase 2
Imlunestrant and abemaciclib for early ER+ breast cancer
This trial tests whether adding two targeted drugs, imlunestrant and abemaciclib, to your usual hormone therapy can lower the chance of your breast cancer coming back. It is for people with early-stage ER+ breast cancer who have no signs of cancer on scans but have tiny amounts of tumor DNA in their blood (called ctDNA).
Los Angeles, CaliforniaAges 18 years+
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Breast cancer trials by city
Studies with a site in or near these metro areas.
Breast cancer trials by state
Studies with a site anywhere in these states.
Common questions
- Are there clinical trials for breast cancer?
- Yes. Clin2 currently lists 2,472 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.