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
- NCT05044689Recruiting
Study to find risk factors for breast and colon cancer
This study is trying to understand what factors might raise the risk of breast cancer and colon (large bowel) cancer. You may be enrolled either if you have a confirmed cancer diagnosis (cases) or if you do not have cancer (controls).
Ile-Ife, Osun StateAges Any age - NCT05056350Recruiting
Coaching to help you return to work after breast cancer
This study tests whether a tailored coaching program can help people with non-metastatic breast cancer return to work in a way that fits their physical and emotional needs. It’s for people who have finished most cancer treatments and are dealing with job-related difficulties.
MontpellierAges 18 years+ - NCT05057598Recruiting
Online study for women with breast cancer experiences
This study asks women with breast cancer to take part in an online, before-and-after research project. It may help researchers understand your experiences and improve support for people living with breast cancer, including those with relapse or spread to other parts of the body.
Milan, MIAges 18–90 - NCT05056857Recruiting
Study immune-web changes in ER+ breast cancer on tamoxifen
This trial studies how the immune system forms “neutrophil extracellular traps” (immune web material) in people with ER-positive breast cancer who take tamoxifen. It aims to understand whether tamoxifen changes this immune activity over time, which may help explain how it works.
Houston, TexasAges 18 years+ - NCT05058183Recruiting
Testing shorter chemotherapy for early HER2 or triple‑negative breast cancer
This study looks at whether some people with stage 1 HER2-positive or “triple-negative” breast cancer may safely need less (de-escalated) chemotherapy after surgery. The goal is to keep the cancer risk low while reducing treatment intensity, using special blood testing over time.
LondonAges 18 years+ - NCT05059379RecruitingPhase 3
Different radiation fields after breast cancer surgery
This trial compares two ways of giving radiation to lymph node areas near the collarbone after surgery for invasive breast cancer. It aims to see which radiation approach works better and is safer for preventing cancer returning in these lymph nodes.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT05063136RecruitingPhase 3
Metronomic capecitabine with hormone therapy after breast cancer
This trial studies whether a low-dose “metronomic” chemotherapy medicine (capecitabine) added to standard hormone therapy can reduce breast cancer coming back. It is for people with hormone-receptor–positive, HER2-negative breast cancer after surgery and chemo.
Zhengzhou, HenanAges 18–70 - NCT05074290RecruitingPhase 1/Phase 2
Testing safety and drug levels of a breast cancer drug plus taxane
This early-phase study tests how epidiferphane works in the body and whether it is safe when combined with standard chemotherapy “taxanes” (paclitaxel or docetaxel) for breast cancer. If you qualify, you may be starting a new taxane treatment plan at the study site, and you would be followed closely for side effects and drug levels.
Gainesville, FloridaAges 18–99 - NCT05076682RecruitingPhase 2
Study for hard-to-treat triple-negative breast cancer that keeps growing
This Phase 2 trial tests a treatment plan for triple-negative breast cancer that has come back or kept progressing after prior immunotherapy (sometimes along with targeted therapy or chemotherapy). It may help by trying to make the cancer more controllable when it has become resistant to earlier treatment.
ShanghaiAges 18–70 - NCT05095207RecruitingPhase 1/Phase 2
Abemaciclib and bicalutamide for HER2-negative metastatic breast cancer
This Phase 1/2 trial tests whether combining abemaciclib with bicalutamide can slow or shrink HER2-negative, androgen receptor–positive (AR-positive) metastatic breast cancer. It mainly looks at safety and side effects, and also whether the combination can help patients with this type of breast cancer.
New York, New YorkAges 18–90 - 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+ - NCT05159193RecruitingPhase 3
Pre-surgery chemotherapy and antibodies for HER2 breast cancer
This phase 3 trial compares two pre-surgery treatment plans for people with HER2-positive invasive breast cancer that has spread to nearby lymph nodes. It aims to see which plan works better to shrink the tumor before surgery and improve outcomes.
Guandong, GuangdongAges 18–70 - NCT05181033RecruitingPhase 2
Lenvatinib plus letrozole versus fulvestrant for metastatic breast cancer
This Phase 2 study compares a combination medicine (lenvatinib plus letrozole) against fulvestrant to treat metastatic estrogen-receptor positive, HER2-negative breast cancer after the cancer has grown despite hormone therapy plus a CDK4/6 inhibitor. It may help by finding a more effective treatment option after your first lines have stopped working.
SingaporeAges 18–99 - NCT05184582Recruiting
Exercise program during chemotherapy for breast cancer
This trial studies whether a structured exercise program during pre-surgery chemotherapy can be safely done and may help people feel and function better during treatment. You may join if you have invasive breast cancer and can commit to the exercise plan while on chemotherapy.
MelbourneAges 18–100 - NCT05187832RecruitingPhase 1
Study drug for ER-positive, HER2-negative breast cancer in postmenopausal women
This Phase 1 trial tests AND019, a new study drug, in postmenopausal women with advanced or metastatic ER-positive and HER2-negative breast cancer. It aims to see if the drug is safe and can control the cancer when other standard treatments have stopped working.
Nashville, TennesseeAges 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 - NCT05205200RecruitingPhase 2
Immune therapy for HR-positive, HER2-negative metastatic breast cancer
This Phase 2 trial studies an immune-based treatment for women with HR-positive and HER2-negative breast cancer that has spread or returned and can’t be cured with local treatment alone. The goal is to see whether the therapy can shrink tumors and improve disease control with acceptable safety.
ShanghaiAges 18–75 - NCT05206331RecruitingPhase 4
Cut biopsy numbers for less concerning breast findings
This study tests a plan meant to reduce how often people get a breast biopsy when the abnormality looks suspicious but not highly worrisome. It may help more people avoid unnecessary procedures while still keeping close medical follow-up.
Pittsburgh, PennsylvaniaAges 30 years+ - NCT05212454RecruitingPhase 3
Capecitabine added after surgery for high-risk ER-positive breast cancer
This Phase 3 study tests whether adding capecitabine (a chemotherapy pill) after breast cancer surgery can lower the chance the cancer comes back. It targets people with hormone-receptor–positive and HER2-negative breast cancer who are considered “high risk.”
Hanzhou, ZhejiangAges 18–70 - NCT05216900Recruiting
Breast reconstruction with radiation given before surgery
This study looks at how breast reconstruction works when radiation is planned around the time of surgery, including in some people before surgery depending on lymph node results. It may help improve safety and outcomes for people needing mastectomy and chest/radiation therapy.
Bilthoven, UtrechtAges 18–75 - NCT05222100Recruiting
Study how breast implants affect mammogram screening
This trial looks at whether having breast implants changes what happens during routine breast cancer screening with mammograms. It may help improve how screening is done and understood for people with implants.
GothenburgAges 40–75 - NCT05241405Recruiting
American ginseng to reduce fatigue after cancer treatment
This study tests whether taking American ginseng for 8 weeks can lessen long-lasting tiredness (fatigue) in people who recently finished certain breast or gynecologic cancer treatments. It may help reduce fatigue when other causes have been ruled out.
AmiensAges 18 years+ - NCT05245812Recruiting
Robotic nipple-sparing mastectomy safety and feasibility study
This trial looks at whether a robotic technique for nipple-sparing mastectomy is safe and practical to do. It may help your care team understand whether this approach works well for people who are candidates for nipple-sparing surgery.
Dallas, TexasAges 18–80 - NCT05263570Recruiting
Real-world treatment planning for stage II–III HR+ HER2+ breast cancer
This trial looks at how well a standard “neoadjuvant” treatment plan works in real-world patients. It is for people newly diagnosed with stage II–III HR+ breast cancer and aims to see whether treatment gives expected outcomes in everyday care.
Shenyang, LiaoningAges 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.