Clinical trials
Breast cancer clinical trials
Cancer that forms in the cells of the breast, the most common cancer in women. We’re tracking 2,418 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04159818RecruitingPhase 2
Adding immune treatments to improve checkpoint drug response in TNBC
This Phase 2 trial tests strategies meant to “prime” the immune system so that immune checkpoint medicines may work better in people with triple-negative breast cancer that has spread (or can’t be fully cured). You might be considered if your cancer has measurable areas that can be biopsied and you meet specific health and prior-treatment rules.
AmsterdamAges 18 years+ - NCT06043466RecruitingPhase 1
CAR-T cell therapy for CEA-positive advanced solid tumors
This trial tests a new cell therapy called CAR-T that targets cancer cells with a protein called CEA. It is for people with certain advanced cancers that have not responded to standard treatments.
Hangzhou, ZhejiangAges 18 years+ - NCT07264985Recruiting
Gut bacteria and diarrhea in breast cancer patients on pyrotinib
This study looks at how gut bacteria relate to diarrhea in breast cancer patients who are taking a drug called pyrotinib. By understanding this link, doctors hope to better manage side effects in the future.
Wuhan, HubeiAges 18–75 - NCT06993506Recruiting
SKB264 alone or combined for advanced HER2- breast cancer
This study is a real-world treatment trial for people with advanced HER2-negative breast cancer (either triple-negative or HR+/HER2-). It tests a drug called SKB264, given alone or with other therapies, and aims to see how well it works in everyday clinical practice.
Hefei, AnhuiAges 18 years+ - NCT06910657RecruitingPhase 1
IDOV-Immune vaccine for advanced solid tumors
This trial tests an experimental virus-based treatment for people with advanced solid tumors that have stopped responding to standard therapies. The treatment is designed to infect and destroy cancer cells while boosting the immune system.
St Louis, MissouriAges 18 years+ - NCT06774963RecruitingPhase 1
Study of LNCB74 for advanced solid tumors
This trial tests a new drug called LNCB74 for people with advanced solid tumors that have not responded to other treatments. It aims to see if the drug is safe and effective.
Newport Beach, CaliforniaAges 18 years+ - NCT06766058Recruiting
Can aromatherapy reduce distress before breast cancer radiotherapy?
This trial tests if inhaling certain scents (aromatherapy) can help calm and reduce distress in breast cancer patients just before their first radiotherapy session.
SingaporeAges 21–99 - NCT06440005RecruitingPhase 1
Testing AGX101 for advanced solid tumors
This study tests a new drug called AGX101 for people with advanced solid tumors that have not responded to other treatments. The goal is to see if it is safe and if it can shrink tumors or slow their growth.
Los Angeles, CaliforniaAges 18 years+ - NCT00823654Recruiting
Blood tests during treatment to track ovarian egg supply
This study measures blood biomarkers to understand how breast cancer treatment affects a person’s future fertility (ovarian reserve). It may help patients learn more about egg supply changes after chemotherapy and hormone-related treatments.
Basking Ridge, New JerseyAges 18–44 - NCT06053086Recruiting
Adaptive radiation therapy for breast cancer patients at high risk
This trial tests a new way to deliver radiation therapy that adapts to each patient's body changes during treatment. It is for women who had breast cancer surgery and need radiation to the whole breast and nearby lymph nodes, and who have been identified as being at risk for breast fibrosis.
MontpellierAges 18 years+ - NCT05130801RecruitingPhase 1/Phase 2
MRI and pHLIP dye during breast surgery to map tumors
This trial tests whether a special MRI and an injected light-activated dye (pHLIP® ICG) can help doctors see and target breast cancer during surgery. You may be offered this approach around the time of breast-conserving surgery, to improve how well the tumor area is identified.
Montvale, New JerseyAges 18 years+ - NCT05000294RecruitingPhase 1/Phase 2
Atezolizumab plus tivozanib for hard-to-treat “cold” cancers
This early-stage study tests whether combining atezolizumab and tivozanib can shrink advanced, hard-to-treat cancers that do not strongly activate the immune system (“immunologically cold”). It is for people whose cancer has already been treated or has no good standard options.
Gainesville, FloridaAges 18–99 - NCT02906943Recruiting
Testing cancer tissue to guide targeted treatment choices
This trial studies advanced solid tumors by using stored tumor samples to look for molecular clues. The goal is to help doctors better choose cancer treatments that may work for your specific tumor.
Hamilton, OntarioAges 18 years+ - NCT06162559RecruitingPhase 1
Targeted therapy before surgery for HER2+ breast cancer
This trial tests a combination of three targeted drugs (trastuzumab, pertuzumab, and tucatinib) without chemotherapy before surgery for HER2-positive breast cancer. It aims to see if this approach can shrink tumors effectively while avoiding chemotherapy side effects.
AmsterdamAges 18 years+ - NCT07658170Recruiting
Fat graft with platelet-rich fibrin for breast reconstruction after lumpectomy
This trial tests using a patient's own fat plus a special blood product (platelet-rich fibrin) to rebuild the breast right after a lumpectomy for breast cancer. It may help improve healing and appearance for women with early-stage, hormone-sensitive breast cancer.
Saint PetersburgAges 18–69 - NCT07601178RecruitingPhase 2
Immunotherapy and targeted drugs for advanced triple-negative breast cancer
This trial tests a combination of four drugs—two immunotherapies (QL1706), an anti-angiogenic agent (anlotinib), and chemotherapy (nab-paclitaxel)—as a first-line treatment for advanced triple-negative breast cancer. The goal is to see if this combination slows or stops cancer growth better than standard treatment alone.
Nanjing, JiangsuAges 18–75 - NCT07593820RecruitingPhase 1
CAR-T Cell Study for Advanced HER2-Positive Cancers
This early-stage trial tests a new type of immune cell therapy called CAR-T cells, which are designed to recognize and attack cancer cells that have a protein called HER2. The cells are made from your own immune cells, trained in the laboratory, and given back to you. The study evaluates how safe the treatment is and whether it can shrink tumors.
Barcelona, CataloniaAges 18 years+ - NCT07416630Recruiting
Web app for tracking radiation side effects in cancer patients
This study is testing a web-based app to help track side effects from radiation therapy in people with gynecologic, urologic, or breast cancer. If you join, you would use the app on your phone or computer to report how you're feeling, which may help your care team better manage your symptoms.
LjubljanaAges 18 years+ - NCT07252986Recruiting
AI study of breast cancer that has spread
This study uses artificial intelligence to analyze tissue samples from breast cancer that has spread to distant organs, like the liver or lungs. The goal is to develop a tool that predicts how breast cancer might spread, helping doctors personalize treatment.
Hangzhou, ZhejiangAges Any age - NCT07016399RecruitingPhase 2
Darolutamide before surgery for AR-positive triple-negative breast cancer
This trial tests a drug called darolutamide, alone or with standard chemotherapy, before surgery for a type of breast cancer that is triple-negative but has a high level of the androgen receptor (AR). It is for people with stage II or IIIA breast cancer that can be removed surgically.
Nashville, TennesseeAges 18 years+ - NCT06839547Recruiting
Testing a new drug with radiation for advanced breast cancer brain tumors
This study looks at how well a new anti-tumor drug works when given along with radiation therapy for people whose advanced breast cancer has spread to the brain. It may help the radiation work better and control the cancer longer.
BeijingAges 18 years+ - NCT06666270RecruitingPhase 1
SYN818 for advanced solid tumors with DNA repair defects
This trial tests a new drug called SYN818 for people with advanced breast, ovarian, prostate, or other solid tumors that have stopped responding to standard treatments. It is designed for patients whose tumors have a specific DNA repair problem (BRCA mutation or other HR pathway deficiency).
Zhengzhou, HenanAges 18 years+ - NCT06638294Recruiting
Study for breast cancer spread to brain lining
This study is for people with breast cancer that has spread to the lining of the brain or spinal cord (called leptomeningeal metastasis). Researchers want to understand how to treat this condition and offer care to those who qualify.
Washington D.C., District of ColumbiaAges 4 months+ - NCT06223022Enrolling by invitation
Nurse phone calls after cancer treatment ends
This trial tests whether regular phone calls from a nurse can help patients after they finish their main cancer treatment. It focuses on breast, colorectal, or prostate cancer that was treated with a goal to cure.
UmeåAges 18 years+
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Common questions
- Are there clinical trials for breast cancer?
- Yes. Clin2 currently lists 2,418 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.