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
- NCT05362760RecruitingPhase 4
Abemaciclib plus hormone therapy, with digital side-effect tracking
This trial tests whether adding abemaciclib to standard hormone (endocrine) therapy can improve outcomes for certain types of advanced breast cancer. It also uses a phone app to help you and the team track side effects so problems can be caught early.
AalenAges 18 years+ - NCT05363189Recruiting
Improving recovery after breast reconstruction with belly-tissue flap
This study looks at ways to help your recovery after breast reconstruction using tissue moved from your lower belly (a DIEP flap). You may be asked to complete a questionnaire during the recovery period.
GothenburgAges 18–100 - NCT05386108RecruitingPhase 1/Phase 2
Test abemaciclib plus elacestrant for breast cancer brain spread
This trial studies whether the combination of abemaciclib and elacestrant can slow or shrink ER-positive, HER2-negative breast cancer that has spread to the brain. It is designed for people whose cancer has progressed despite prior hormone (endocrine) treatment.
Fullerton, CaliforniaAges 18 years+ - NCT05388149RecruitingPhase 2
Neratinib plus Kadcyla to treat leftover HER2 breast cancer
This trial studies whether adding neratinib to Kadcyla (T-DM1) can help eliminate “molecular residual disease,” meaning tiny traces of cancer left after surgery and standard HER2 treatment. It’s for adults with HER2-positive breast cancer who still test positive after a short course of Kadcyla, with no signs of cancer returning or spreading on scans.
Toronto, OntarioAges 18 years+ - NCT05404321Recruiting
Collecting tumor samples to study triple-negative breast cancer treatments
This study collects tumor tissue from people with early-stage triple-negative breast cancer before they start neoadjuvant chemotherapy. The goal is to help researchers test new therapies and look for markers that may predict who benefits.
CaenAges 18 years+ - NCT05406232Recruiting
Radiation study to track immune changes in breast cancer
This study gives a short course of radiation to the breast or chest wall and measures how your immune system responds. It may help doctors better understand which immune changes happen after radiation and how this could improve palliative (symptom-relieving) care.
Houston, TexasAges 18 years+ - NCT05427071Recruiting
Tracking a breast cancer marker to guide lymph node surgery
This study tests a special “marker” technique to help surgeons find affected lymph nodes in the armpit after chemotherapy. It may support more targeted surgery and help avoid unnecessary removal of healthy lymph nodes.
Hong KongAges 18 years+ - NCT05430399RecruitingPhase 3
Utidelone vs docetaxel for HER2-negative breast cancer
This trial compares utidelone with docetaxel in people with HER2-negative advanced or metastatic breast cancer. It aims to see which treatment works better and is safer for controlling the cancer and helping patients live longer.
Guangzhou, GangdongAges 18 years+ - NCT05447988Recruiting
Breast reconstruction study using a new tissue expander
This trial studies a new device used during breast reconstruction after mastectomy, usually to stretch skin before placing a breast implant. It may help people who’ve had breast cancer and completed radiation at least a year ago by improving the reconstruction process and tracking outcomes.
RancaguaAges 18 years+ - NCT05455619RecruitingPhase 1/Phase 2
Targeted drugs for PI3K-altered, HR+/HER2- breast cancer
This Phase 1/2 trial tests how well a combination of targeted medicines works for advanced or returning HR+/HER2- breast cancer that has a PI3K pathway change (such as PIK3CA, PTEN, or AKT1). It may help by blocking growth signals in the cancer and is especially for people whose cancer has progressed after hormone therapy and a CDK4/6 inhibitor.
Loma Linda, CaliforniaAges 18 years+ - NCT05462457Recruiting
Tests adding a targeted approach for breast cancer with many involved nodes
This trial studies a treatment plan for early breast cancer that involves at least three suspicious lymph nodes on the ultrasound/imaging. It looks at whether a targeted technique—done before surgery with chemotherapy—can improve or guide care when surgery will remove the lymph nodes.
EssenAges 18 years+ - NCT05466786Recruiting
Testing gene changes and DNA damage in HER2-low breast cancer
This trial studies breast cancer tumors to see how specific gene changes and DNA damage patterns relate to the cancer in people with HER2-low disease. It may help doctors better predict which patients could benefit from treatments that target these pathways.
Guangzhou, GuangdongAges 18–70 - NCT05468034Recruiting
Exercise program for metastatic breast cancer using a phone
This trial studies how a supervised exercise program (with treadmill walking and phone tracking) affects people living with metastatic breast cancer. It may help by improving fitness and day-to-day ability, especially if you’re currently not meeting regular exercise goals.
New Haven, ConnecticutAges 18 years+ - NCT05472792RecruitingPhase 2
Testing breast radiation after lumpectomy with or without hormone pills
This Phase 2 trial compares different “after-surgery” treatment plans for certain older women with hormone-sensitive early breast cancer. It looks at whether a standard hormone-pills approach or a faster, smaller-area radiation approach (given after lumpectomy) works best to prevent cancer coming back.
Chapel Hill, North CarolinaAges 65 years+ - NCT05475678RecruitingPhase 2
Camrelizumab plus chemo before surgery for triple-negative breast cancer
This Phase 2 trial tests adding camrelizumab (an immune therapy) to standard chemotherapy before surgery for people with triple-negative breast cancer that has not spread. It aims to improve how much the tumor shrinks before and around the time of surgery.
Zhengzhou, HenanAges 18–70 - NCT05504707RecruitingPhase 1
Study drug for early-stage, HER2-negative, low-risk hormone breast cancer
This Phase 1 trial tests a new study drug called DC1 given before standard breast cancer treatments. It focuses on people with HER2-negative breast cancer that is “hormone negative” or “hormone low,” aiming to see if the treatment is safe and whether it may work before surgery or other local therapy.
Tampa, FloridaAges 18 years+ - NCT05505643Recruiting
Cryoablation versus lumpectomy for early breast cancer
This trial compares two ways to remove early-stage breast tumors: freezing (cryoablation) or surgery (lumpectomy). It may help find which option works as well or better for cancer control while keeping the breast looking more natural for some people.
St Louis, MissouriAges 50 years+ - NCT05559411Recruiting
Tests ways to find different breast lesions before surgery
This trial looks at different methods doctors can use to locate a breast lesion using imaging, so it can be removed accurately during breast-conserving surgery. It may help your care team choose the best localization approach for your type and location of lesion.
LübeckAges 18 years+ - NCT05570253RecruitingPhase 2
SDX-7320 plus eribulin for metastatic triple-negative breast cancer
This Phase 2 study tests whether adding SDX-7320 to eribulin can work better for people with triple-negative metastatic breast cancer. It focuses on patients who have had prior chemotherapy and who also show signs of metabolic imbalance such as higher body weight or higher HbA1c.
Miami, FloridaAges 18 years+ - NCT05579366RecruitingPhase 1/Phase 2
Study drug for advanced ovarian and other solid cancers
This Phase 1/2 trial studies Rinatabart Sesutecan to treat advanced cancers, with special focus on certain ovarian cancer types. It’s meant for people whose cancer has come back or has not responded to prior treatments.
Phoenix, ArizonaAges 18 years+ - NCT05595577Recruiting
Personalized exercise program to improve fitness during cancer care
This trial tests whether a tailored, home-based exercise plan can improve exercise capacity (how far and how safely you can be active) in people receiving cancer treatments that may affect the heart. It may help you build safer stamina while monitoring your heart health.
Winston-Salem, North CarolinaAges 18–85 - NCT05603078Recruiting
Breast cancer surgery with a tumor-bed boost and standard radiation
This study looks at whether adding extra targeted radiation to the tumor area before breast-conserving surgery, then using modern breast surgery techniques and whole-breast radiation afterward, improves outcomes for early-stage breast cancer. You may be offered a treatment plan designed to better treat the area where the tumor was removed.
Beijing, Beijing MunicipalityAges Up to 55 years - NCT05608252RecruitingPhase 1/Phase 2
Drug combination for advanced ER-positive, HER2-negative breast cancer
This Phase 1/2 study tests how well a new treatment combination (VS-6766, abemaciclib, and fulvestrant) works for metastatic or hard-to-remove breast cancer that is hormone-driven (ER/PR positive) and HER2 negative. It is mainly designed to find the safest dose and then see whether it can control the cancer after it has progressed on certain prior medicines.
Boston, MassachusettsAges 18 years+ - NCT05665920Recruiting
Shorter radiation after breast surgery for certain node-positive cancer
This trial compares a shorter, more concentrated radiation schedule versus a standard shorter schedule after breast-conserving surgery. It looks at whether the treatment works well and is safe, especially for women whose lymph nodes also need radiation.
São Paulo, São PauloAges 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.