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
- NCT05507879Recruiting
Breast cancer heart monitoring to predict heart damage risk
This trial studies how a blood test marker (TRPC6) may help predict and prevent heart muscle damage and heart failure related to some breast cancer medicines. You may join if you’re starting or have received treatment that can stress the heart, or if you already have signs of treatment-related heart problems.
Gainesville, FloridaAges 18 years+ - NCT05479409RecruitingPhase 2
Radiation before surgery for advanced breast cancer
This trial tests whether giving radiation therapy before surgery helps people with locally advanced breast cancer that hasn't been removed with chemotherapy. It may offer a new option for those who cannot have surgery right away.
Shanghai, Shanghai MunicipalityAges 18–70 - NCT05145244Recruiting
Copenhagen observational study for lung or breast cancer data
This is an observational study that collects real-world information from adults with lung cancer or breast cancer. It may help doctors better understand how people do over time and how treatments and outcomes relate to details from your medical record and tests.
CopenhagenAges 18 years+ - NCT05190978Recruiting
Test mesh use for breast reconstruction above the muscle
This study tests whether using surgical mesh can be done safely and works well in breast reconstruction done right away, in front of the chest muscle (pre-pectoral) using tissue expanders. It may help improve how the reconstructed area holds up, but you’d need to meet specific surgical and health requirements.
Los Angeles, CaliforniaAges 22–75 - NCT05160480Enrolling by invitation
Total-body PET scan using FDA-approved tracers for prostate or NET cancer
This pilot study tests a total-body PET scan with approved tracer medicines to help detect cancer spread in people with suspected metastatic prostate cancer or certain neuroendocrine tumors (NETs). You may be able to join if recent scans already suggest metastasis and you can safely complete the scan timing and positioning.
Sacramento, CaliforniaAges 18 years+ - NCT04913064Recruiting
White button mushroom supplement for inflammation in high-risk breast cancer
This trial tests whether a white button mushroom powder supplement can lower inflammation in postmenopausal women who have a high risk of breast cancer. If it helps, it could improve early prevention strategies for people at higher risk.
Duarte, CaliforniaAges 21 years+ - NCT04144907Recruiting
Protein needs study for colorectal or breast cancer
This study tests how much protein people with colorectal or breast cancer need during treatment or recovery. It may help improve nutrition guidance and support for maintaining health during chemo or after surgery.
Edmonton, AlbertaAges 45–80 - NCT04119024RecruitingPhase 1
Gene-edited immune cells for advanced melanoma or solid tumors
This Phase 1 study tests a gene-modified immune cell treatment for advanced cancers that don’t have standard curative options. It may help by attacking cancer cells that show a specific marker called IL13Rα2 after patients receive “conditioning” chemotherapy to prepare the immune system.
Duarte, CaliforniaAges 18–75 - NCT02595957Recruiting
Study about how people understand genetic test results
This trial studies what people and families think and understand about genetic test results, especially when results suggest a higher risk for disease. It may also include interviews and follow-up, and in some cases additional family testing if it fits the study’s goals.
Bethesda, MarylandAges 1 month–105 years - NCT02541435Recruiting
Breast cancer radiotherapy side effects study
This study looks at heart and blood-vessel side effects after modern radiation treatment for breast cancer, both soon after and years later. It may help doctors understand who is at risk and how to monitor heart health over time.
ÅlesundAges 30–70 - NCT06885424Enrolling by invitation
Long-term follow-up for A2 Bio gene therapy patients
This study follows up with people who previously received a gene therapy product from A2 Biotherapeutics in an earlier trial. The goal is to monitor their health over time and check for any long-term effects.
Gilbert, ArizonaAges 18 years+ - NCT03392233RecruitingPhase 2
Targeted radiation for spinal metastases causing significant pain
This trial tests a focused form of radiation (stereotactic body radiation) to treat cancer spread to the spine, especially when it causes substantial pain. It may help shrink or control the spinal spots while limiting damage to surrounding tissues.
Shanghai, Shanghai MunicipalityAges 18–85 - NCT01173341Enrolling by invitation
Checking heart side effects of breast cancer treatments
This study looks at how breast cancer medicines affect the heart. It may help doctors better prevent, spot early, and manage heart side effects from trastuzumab and/or anthracycline chemotherapy.
Philadelphia, PennsylvaniaAges 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+ - NCT07259226RecruitingPhase 2
Studying resistance to antibody-drug conjugates in advanced cancer
This study is for people with advanced breast, bladder, lung, or stomach cancer who are about to start treatment with a type of targeted therapy called an antibody-drug conjugate (ADC). The trial will collect tumor samples and blood to understand how cancers become resistant to these drugs and to find better ways to predict treatment success.
VillejuifAges 18 years+ - NCT07459283RecruitingEarly Phase 1
Study of 177Lu-INN805 for advanced solid tumors
This trial tests a new treatment called 177Lu-INN805 for people with advanced solid tumors that have not responded to standard therapies. It aims to see if the drug is safe, where it goes in the body, and whether it can shrink tumors.
Wuxi, JiangsuAges 18–75 - NCT07447050RecruitingPhase 2
Riluzole to Prevent Chemo-Related Cognitive Problems
This pilot study tests whether the drug riluzole can help prevent the thinking and memory problems (often called 'chemobrain') that some people experience during chemotherapy. If you are about to start a chemo regimen containing an anthracycline or platinum drug, you may be able to join.
Orange, CaliforniaAges 18 years+ - NCT07592793Enrolling by invitation
Community Health Worker Perspectives on New Programs
This study asks community health center workers and partner staff about their experiences implementing a new health program. Your feedback helps researchers understand what works and what challenges exist in delivering care in community settings.
Boston, MassachusettsAges 18 years+ - NCT07391956Recruiting
Palliative care for advanced heart failure or cancer
This study tests whether special supportive care (called tiered palliative care) can help people with advanced heart failure or certain advanced cancers feel better and have fewer hospital visits. If you live in Manhattan or Queens, speak English or Spanish, and meet the other requirements, you may be able to join.
Astoria, New YorkAges 18 years+ - NCT06907095Recruiting
Early cancer detection study for high-risk individuals
This study tests if a simple blood or fluid test can find cancer early in people with a higher-than-average risk. If you have certain genetic mutations, a strong family history of cancer, or other high-risk conditions, you may be able to join.
VillejuifAges 18 years+ - NCT07748598Recruiting
Brain scan monitoring for HER2-positive breast cancer
This study is testing regular MRI brain scans to find any brain metastases early in people with HER2-positive breast cancer that has spread. It aims to see if early detection can help guide treatment and improve outcomes.
LiverpoolAges 16 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 - NCT05620329Recruiting
Pleural fluid registry for drainage in adults
This registry collects information from adults who have fluid around the lungs (pleural effusion) and need clinically indicated drainage because of infection or cancer. It helps researchers better understand these conditions and improve future care.
Chapel Hill, North CarolinaAges 18 years+ - NCT04282122Recruiting
Personalized radiation plan for older women with early breast cancer
This trial uses individual measures of how sensitive your body’s tissues are to radiation to guide after-surgery breast radiation treatment. It aims to keep treatment safe and effective while tailoring the plan to each person.
Montpellier, OccAges 65 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.