Clinical trials
Primary Breast Cancer clinical trials
Below are recruiting primary breast cancer clinical trials, each written for real people, not researchers. We’re tracking 711 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06551220Recruiting
T-DXd for advanced breast cancer with various HER2 levels
This study looks at how well the drug T-DXd (Enhertu) works against breast cancer that has spread or can't be removed with surgery. It includes patients with any level of HER2 protein, so it might be an option even if your cancer has low HER2.
New Haven, ConnecticutAges 18–80 - NCT06230055RecruitingPhase 4
Chemotherapy for breast cancer that has spread to the spinal fluid
This trial tests a chemotherapy drug given directly into the spinal fluid for people with HER2-negative breast cancer that has spread to the lining of the brain and spinal cord (called leptomeningeal metastasis). It may help when standard treatments have stopped working or caused too many side effects.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT05933395RecruitingPhase 2
Targeted treatment for ER+ breast cancer after CDK4/6 therapy
This Phase 2 study tests a genetically guided treatment plan for ER-positive breast cancer that has progressed after CDK4/6 therapy. It may help by matching treatment to tumor genetic changes.
Lebanon, New HampshireAges 18 years+ - NCT05878314Recruiting
Testing how hormones and tumor markers guide breast cancer treatment
This study looks at how planned hormone (endocrine) treatment, the menstrual cycle, and lab markers from the tumor may help doctors choose the best treatment for early-stage, hormone-receptor–positive, HER2-negative breast cancer. It may help personalize decisions, including what to do before surgery.
TübingenAges 18 years+ - NCT06195306RecruitingPhase 2
Low dose tamoxifen and omega-3 for breast cancer prevention
This study tests whether low-dose tamoxifen (a breast cancer prevention drug) or omega-3 supplements can lower breast cancer risk in postmenopausal women who are overweight and have a higher chance of getting the disease. The study lasts about 6 months and involves blood draws and a breast fluid test to see how the treatment affects breast cells.
Kansas City, KansasAges 45–74 - NCT07503808RecruitingPhase 1
IDE034 for advanced solid tumors with B7-H3 or PTK7
This study tests a new drug called IDE034 for people with advanced solid tumors that have certain markers (B7-H3 and PTK7). The drug may help by targeting these markers on cancer cells, and the study checks if it is safe and effective.
Denver, ColoradoAges 18 years+ - NCT05746897RecruitingPhase 1
First-in-human test of an anti-PVRIG drug for advanced cancers
This early-phase study tests NM1F (an anti-PVRIG antibody) in people with advanced solid tumors to see if it’s safe and whether it may work. It also includes pembrolizumab (a PD-1 “checkpoint” medicine), aiming to boost the immune system against the cancer.
Dallas, TexasAges 18 years+ - NCT07245069RecruitingPhase 2
Can dapagliflozin protect the heart during breast cancer chemo?
This trial tests if the drug dapagliflozin can prevent heart damage caused by anthracycline chemotherapy in breast cancer patients. It aims to see if taking the drug during chemo helps keep your heart healthy.
LjubljanaAges 18 years+ - NCT07352930Recruiting
Fluorescence-guided system for breast cancer surgery margins
This trial tests a new imaging system that helps surgeons see if cancer cells remain after breast-conserving surgery. It may reduce the need for a second surgery by giving real-time feedback on the removed tissue.
Guangzhou, GuangdongAges 18 years+ - NCT05005403RecruitingPhase 1
Testing azirkitug for lung, head/neck, and other solid cancers
This Phase 1 study tests how a new medicine (azirkitug) behaves in the body and how safe it is, given by IV infusion alone or with other cancer drugs. It may help people with several advanced solid tumor cancers, especially after standard treatments have stopped working.
Duarte, CaliforniaAges 18 years+ - NCT06100263Recruiting
Breast cancer resilience exercise program for Black women
This study tests a personalized exercise program designed to help Black women build strength and resilience after breast cancer treatment. It aims to see if guided exercise can improve physical and emotional well-being.
Ann Arbor, MichiganAges 18 years+ - NCT07318051Recruiting
Sample collection for cancer research study
This study collects blood and tumor tissue samples from patients with certain untreated cancers to help researchers develop and improve tests. You may be eligible if you have one of the listed cancer types and have not yet started treatment.
Austin, TexasAges 18 years+ - NCT05076760RecruitingPhase 1
Study of a cancer-killing virus with standard treatments
This Phase 1 trial tests MEM-288, an oncolytic (cancer-killing) virus, either alone or combined with standard cancer medicines, in people with advanced solid tumors. It’s designed to see how the treatment works and how safe it is in different cancer types and after specific prior therapies.
Tampa, FloridaAges 18 years+ - NCT04158843Recruiting
Local surgery vs comfort treatment for limited breast cancer spread
This trial compares a more direct local treatment (targeting a small, limited spot) versus a comfort-focused palliative approach for breast cancer that has spread only to one side of the upper arm bone or breastbone area. It aims to see which approach works better while keeping side effects manageable.
Hangzhou, ZhejiangAges 18–75 - NCT06315868Recruiting
Breast cancer organoid study for tumor analysis
This study is testing a new way to understand your breast cancer by growing tiny tumor samples (called organoids) in the lab. It will help researchers learn more about your cancer type and could lead to better treatments.
RomaAges 18–70 - NCT07469267Recruiting
Armpit radiation vs more surgery for early breast cancer with node spread
This trial tests whether radiation to the lower armpit (level I-II axilla) works as well as more extensive surgery for women with early-stage breast cancer that has spread to one or two sentinel lymph nodes (with cancer size > 2 mm). It aims to find a gentler treatment that still keeps the cancer from coming back.
Guiyang, GuizhouAges 18 years+ - NCT06793332RecruitingPhase 2
Ivonescimab and Trodelvy for breast cancer with brain metastases
This trial tests two drugs (Ivonescimab and a Trop2 ADC) for people with triple-negative breast cancer that has spread to the brain. It aims to see if this combination can shrink brain tumors and help patients live longer.
Shanghai, Shanghai MunicipalityAges 18–70 - NCT07244094Recruiting
AI predicts breast cancer spread risk from tissue scans
This trial uses artificial intelligence to analyze images of your tumor tissue to predict if breast cancer might spread to other parts of the body. It may help doctors better understand your individual risk and guide treatment decisions.
Changchun, JilinAges 18–95 - NCT07130383RecruitingPhase 2
Study of two experimental drugs for advanced breast cancer and other solid tumors
This trial tests a combination of two investigational drugs, MHB036C and MHB039A, in people with advanced breast cancer or other solid tumors that have spread. The goal is to see if this combination can shrink tumors and help patients live longer.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT07104266RecruitingPhase 2
Celecoxib for early triple-negative breast cancer
This research study tests whether adding a drug called celecoxib (an anti-inflammatory pill) can help treat early-stage triple-negative breast cancer after surgery, before or during radiation therapy. You may be eligible if your cancer was removed cleanly and you do not have other health issues like stomach ulcers, kidney problems, or a history of allergic reactions to certain pain relievers.
Sherbrooke, QuebecAges 18 years+ - NCT05634889Recruiting
Personalized breast radiation for limited lymph-node spread
This trial studies a tailored form of radiation treatment for some people with early breast cancer whose sentinel lymph-node biopsy shows cancer in 1–2 nodes. It may help improve local control while guiding the best radiation approach for your specific situation.
HelsinkiAges 18 years+ - NCT01042548Recruiting
Testing blood and tissue markers in breast surgery patients
This study looks at proteins and imaging patterns (from tissue, fluid near the tumor, and blood) to better understand breast cancer markers. It may help researchers find clues that doctors can use to evaluate breast nodules and newly diagnosed invasive breast cancer.
Pittsburgh, PennsylvaniaAges 18 years+ - 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 - NCT07253987Recruiting
Cancer Survivors Program for Breast or Prostate Cancer
This study offers a program to help people who have completed their main treatment for early-stage breast or prostate cancer. It focuses on follow-up and support during survivorship, and you are still eligible if you are on certain maintenance therapies like hormone therapy.
BrnoAges 18 years+
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Common questions
- Are there clinical trials for primary breast cancer?
- Yes. Clin2 currently lists 711 recruiting primary 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 primary 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 primary 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.