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
- NCT04914663Recruiting
Exercise program during breast cancer chemotherapy
This study tests whether supervised exercise during chemotherapy is safe and helpful for people with early-stage breast cancer. It may support physical function and well-being while you are receiving cancer treatment.
Gainesville, FloridaAges 18–85 - NCT04921137RecruitingPhase 4
Testing benefits and side effects of hormone therapy in older breast cancer patients
This study looks at the potential harms and benefits of hormone (endocrine) therapy in people age 70 and older with early-stage, hormone-receptor–positive breast cancer. It may help doctors choose which hormone treatment approach is safest and most helpful for older patients.
Edmonton, AlbertaAges 70 years+ - NCT04923542RecruitingPhase 1/Phase 2
Targeted drug plus focused brain radiation for breast cancer
This study tests whether abemaciclib (a targeted pill) given with focused radiation to brain tumors can control hormone receptor–positive, HER2-negative breast cancer in the brain. It’s designed to see if the combination helps shrink or slow the growth of brain metastases while keeping side effects manageable.
Tampa, 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 - NCT04933266Recruiting
Nerve block plan for breast surgery
This trial studies a type of pain-control injection (a nerve block) to help with anesthesia during breast cancer surgery. It may help improve comfort and reduce pain around the operation.
Sheung Shui, New TerritoriesAges 18–80 - NCT07117630RecruitingPhase 2
A new drug combo for advanced breast cancer after standard treatment
This trial tests a new drug combination for women with a certain type of advanced breast cancer (HR-positive, HER2-negative) that has worsened after standard treatments like CDK4/6 inhibitors and hormone therapy. It aims to see if the combination can help when other options have stopped working.
ShanghaiAges 18 years+ - 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+ - NCT06889610RecruitingPhase 2
Ablation plus drug therapy for advanced solid tumors
This trial tests combining a liver tumor ablation procedure with systemic drugs for people with advanced colorectal, breast, or melanoma cancer that has spread to the liver. The goal is to see if this approach can help when standard treatments have stopped working.
ShanghaiAges 18–80 - NCT06726148RecruitingPhase 1/Phase 2
Study of ECI830 for advanced breast cancer and solid tumors
This trial is testing a new drug called ECI830, either alone or with another drug, for people with advanced breast cancer or other solid tumors that have not responded to standard treatments. It may be an option if you have HR+/HER2- breast cancer, small cell lung cancer, or a tumor with a specific gene change (CCNE1 amplification).
Los Angeles, CaliforniaAges 18–100 - NCT07624617Recruiting
Fasting and Breast Cancer Treatment Study
This study looks at whether periods of fasting (eating for shorter time windows) might help improve how well a breast cancer medication called capivasertib works. You'll wear a glucose monitor, track your food, and follow fasting schedules while continuing your regular cancer treatment.
Minneapolis, MinnesotaAges 18 years+ - NCT07238894Recruiting
Freezing and heating breast cancer without surgery
This study tests a combination of freezing and heating (cryoablation and thermal ablation) to treat breast cancer in patients who cannot have surgery. It may help shrink or control tumors while avoiding general anesthesia.
BeijingAges 18–80 - NCT04947189RecruitingPhase 1/Phase 2
Seviteronel plus chemo for advanced triple-negative breast cancer
This trial tests seviteronel together with standard chemotherapy to treat certain types of advanced breast cancer that has spread. It’s looking to see how well the combination works and how safe it is, especially for cancers that are androgen-receptor positive.
Darlinghurst, New South WalesAges 18 years+ - NCT04947280RecruitingPhase 1/Phase 2
Radiation split into small doses for breast cancer bone spread
This trial studies a type of focused radiation given in smaller parts to treat bone metastases from breast cancer. It may help shrink tumors and improve control of pain or growth when standard treatments haven’t worked or surgery isn’t possible.
Shanghai, Shanghai MunicipalityAges Any age - NCT04965064RecruitingPhase 2
Neratinib plus capecitabine for HER2-negative breast cancer brain mets
This study tests whether neratinib plus capecitabine can slow or shrink breast cancer that has spread to the brain. It is for people whose cancer shows an “overactive HER2 signal” on a specific tumor test, even though their cancer is labeled HER2-negative.
Rochester, New YorkAges 18 years+ - NCT04983121RecruitingPhase 2
Neoadjuvant pyrotinib plus ARX788 for HER2-positive breast cancer
This Phase 2 trial studies whether combining pyrotinib with ARX788 given before surgery can work better and be safe in people with HER2-positive breast cancer. It’s designed for tumors that did not respond well enough to earlier trastuzumab and pertuzumab treatment.
Shenyang, LiaoningAges 18–75 - NCT04985032Recruiting
Radiation after lumpectomy for selected breast tumors
This trial tests a shorter, focused type of radiation (APBI using SBRT) after lumpectomy for certain early breast cancers. It may help by targeting only the part of the breast where the tumor was, rather than treating the whole breast, while keeping safety and cancer control in mind.
Stuart, FloridaAges 50–100 - NCT04985058Recruiting
Study of abemaciclib plus hormone therapy in breast cancer
This study uses real-world health records to learn about outcomes in people with hormone-receptor positive, HER2-negative breast cancer who were treated with abemaciclib along with hormone (endocrine) therapy. It may help doctors better understand how well this treatment works outside of clinical trials.
AthensAges 18 years+ - NCT04990921RecruitingPhase 2
Palliative radiation plus pembrolizumab for metastatic breast cancer
This trial studies whether adding a focused, comfort-focused form of radiation (SBRT) to pembrolizumab can help people with stage IV breast cancer that cannot be removed with surgery. You may be eligible if you can receive palliative SBRT and have measurable tumors, and if you meet prior-therapy and blood/health criteria.
Louisville, KentuckyAges 18 years+ - NCT05007379Recruiting
Testing new immune cells on breast cancer samples in the lab
This trial studies whether newly made immune cells (“CAR-macrophages”) can attack breast cancer when tested on your tumor samples grown in the lab (“organoids”). If you need surgery or a tumor biopsy as part of your usual care, your sample may be used to test this approach.
LilleAges 18–100 - NCT05010356Recruiting
Testing insulin sensitivity after breast cancer treatment
This study looks at how well your body uses insulin (a hormone that helps move sugar from the blood into cells) after breast cancer treatment. It may help researchers understand whether insulin sensitivity changes after chemotherapy and could guide future health monitoring.
Copenhagen, DKAges 20–45 - NCT05013255RecruitingPhase 2
Pioglitazone to treat fatigue in hormone-positive breast cancer
This Phase 2 study tests whether pioglitazone can reduce fatigue in people with certain types of breast cancer. You may be eligible if your cancer is estrogen- and progesterone-positive (ER+/PR+) and you plan surgery soon.
Morgantown, West VirginiaAges 18 years+ - NCT05020574RecruitingPhase 2
Study how the microbiome may affect breast implant infections
This Phase 2 study looks at whether changes in the body’s “microbiome” (the normal germs in and on the body) are linked to infections after breast surgery with implants. It may help doctors better predict and prevent implant infections in people undergoing mastectomy with immediate implant placement.
San Francisco, CaliforniaAges 18 years+ - NCT05032768Recruiting
Study links between skin bacteria and radiation skin reactions
This study looks at how changes in the skin’s normal bacteria (microbiome) relate to getting redness, irritation, or rash after breast radiation. It may help doctors predict who is more likely to have skin side effects after reconstruction and radiation.
Shanghai, Shanghai MunicipalityAges 18–70 - NCT05035836RecruitingPhase 2
Test drug after early HER2-positive breast cancer surgery
This trial tests zanidatamab, a type of targeted antibody treatment, in people with early-stage HER2-positive breast cancer to see how well it works and how safe it is. Because it’s a single-arm pilot study, everyone in the study gets the drug, and you’ll likely be asked to undergo standard surgery if appropriate.
Houston, TexasAges 18 years+
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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.