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
- NCT06097156Recruiting
Automated blood test for breast cancer monitoring
This trial tests an automated device that prepares blood samples to detect cancer-related changes. It aims to improve how doctors monitor breast cancer that has spread, without needing a tissue biopsy every time.
MilanAges 18 years+ - NCT06104371Recruiting
Magnetic markers to find lymph nodes before chemo for breast cancer
This trial tests a new method using magnetic markers (Magtrace and Magseed) to find lymph nodes before chemotherapy. It may help doctors better target the lymph nodes that need to be removed during breast cancer surgery.
GothenburgAges 18–85 - NCT06082206Recruiting
Nerve blocks to prevent long-term pain after breast cancer surgery
This study compares two types of nerve blocks (pectoral nerve block vs. paravertebral block) to see which one better prevents long-term pain after breast cancer surgery.
AsyutAges 20–65 - NCT06073106Recruiting
Frailty prevention study for older Asian adults
This trial tests a program to prevent frailty in people aged 50 and older of Asian descent who have recently been diagnosed with a stroke, traumatic brain injury, knee osteoarthritis, or breast cancer. The goal is to help you stay strong and healthy as you recover.
Singapore, SingaporeAges 50 years+ - NCT06078384RecruitingPhase 2
Pembrolizumab and chemo for early-stage triple-negative breast cancer
This trial studies whether adding pembrolizumab (an immunotherapy) to standard chemotherapy after surgery can improve outcomes for people with early-stage triple-negative breast cancer. The treatment you receive depends on the level of immune cells (TILs) found in your tumor.
AmiensAges 18 years+ - NCT05559164RecruitingPhase 2
Statins to protect the heart during HER2 breast cancer treatment
This trial tests whether a cholesterol medicine (a statin) can lower the risk of heart damage in people receiving HER2-targeted breast cancer therapy. If you qualify, you may be given a statin and followed with heart tests and blood work to watch for safety and benefit.
Elizabeth, New JerseyAges 18 years+ - NCT06032390Recruiting
AI in mammogram screening for breast cancer
This study tests whether artificial intelligence (AI) can help radiologists read mammograms (breast X-rays) more accurately during routine breast cancer screening. It aims to see if AI can catch more cancers early while reducing unnecessary follow-up exams.
OsloAges 50–69 - NCT05146778Recruiting
Opioid-free anesthesia to reduce long-term post-mastectomy pain
This study tests whether a pain-control approach without opioids (strong pain medicines) can lower persistent pain after mastectomy. It may help people avoid long-term pain and opioid side effects.
SeoulAges 19–80 - NCT05921253RecruitingEarly Phase 1
Check a brain-heart device to reduce chemo heart risk
This early-phase study tests a “neuromodulation” device (stimulating nerves that may affect the heart and blood vessels) to help lower cardiovascular risks after certain cancer chemotherapy. It may be most relevant if you recently had an anthracycline-based treatment and also have other heart-risk factors.
Oklahoma City, OklahomaAges 18–99 - NCT05782686Recruiting
Shaving wound skin regularly after breast-conserving surgery
This study looks at whether regularly removing (shaving) small amounts of skin during recovery can improve surgical healing and outcomes. It focuses on people having breast-conserving surgery for certain early breast cancers.
L'Hospitalet de Llobregat, BarcelonaAges 18 years+ - NCT05768139RecruitingPhase 1/Phase 2
Testing a new targeted drug for advanced solid tumors with PI3Kα mutation
This trial tests tersolisib, a new targeted medicine, in adults with advanced or hard-to-remove solid cancers. It focuses on tumors that have a specific genetic change (PI3Kα mutation) to see how well the treatment works and what side effects it causes.
Los Angeles, CaliforniaAges 18 years+ - NCT05749588RecruitingPhase 2
Study for advanced triple-negative breast cancer after prior treatments
This Phase 2 trial tests a treatment for people with triple-negative breast cancer that has come back or spread and has continued to progress despite earlier therapies. It may help by trying a new approach in patients who still have enough health to safely receive more treatment.
ShanghaiAges 18 years+ - NCT05739591Recruiting
Long-term follow-up for people treated in a breast cancer trial
This study checks how well a previous early breast cancer treatment works over the long term and monitors safety. It may help you and future patients by providing long-term results from the original trial.
Innsbruck, TriolAges 18 years+ - NCT05740787Recruiting
Study of thinking changes after chemotherapy for breast cancer
This study looks at how chemotherapy may affect thinking and memory in people with HER2-negative breast cancer. It uses brain scans during or after chemotherapy to understand these changes and potentially guide support in the future.
AberdeenAges 18 years+ - NCT05693766RecruitingPhase 2
Gene test guides treatment for hormone-positive breast cancer
This trial studies whether a gene-signature test can help guide treatment choices for people with hormone receptor–positive (ER and/or PR) breast cancer that has spread or can’t be fully removed. It may help find the best therapy approach after prior hormone therapy and targeted cancer medicine.
Birmingham, AlabamaAges 18 years+ - NCT05598879Recruiting
New heart-cancer visit registry for adults
This study is a “registry,” meaning it collects health information from adults who are getting a new heart (cardio) evaluation related to cancer. It helps doctors better understand heart risks and care needs for different cancer types and treatments.
Weston, FloridaAges 18 years+ - NCT05525767RecruitingPhase 4
Bevacizumab plus chemo before surgery for HER2-negative breast cancer
This trial studies whether adding bevacizumab (an anti-blood-vessel medicine) to chemotherapy before surgery improves treatment outcomes for people with HER2-negative breast cancer. It’s mainly for tumors that are stage II to IIIC and have not had prior cancer treatment.
Shijiazhuang, HebeiAges 18 years+ - NCT05496829Recruiting
Improving how people take breast-cancer and heart medicines
This trial tests an intervention to help improve how equitably people take their prescribed breast cancer hormone therapy and heart-related prevention medicines. It may help if you have had trouble taking these medications as directed.
New York, New YorkAges 18–99 - NCT05464082RecruitingPhase 2
Collect tumor samples to guide early breast cancer recurrence care
This Phase 2 study tests a “precision” approach using tumor sample testing to help predict, prevent, and treat early metastatic recurrence in triple-negative or hormone-receptor–low, HER2-negative breast cancer. If you qualify, you’ll be asked to provide tumor tissue before (or in place of) standard chemotherapy, so researchers can learn which tumor features matter most.
Salt Lake City, UtahAges 18 years+ - NCT05432856Recruiting
Track metabolic health habits during breast cancer treatment
This study follows how “metabolic health” patterns (like eating timing and daily activity) change over time during breast cancer care. It may help researchers learn which habit patterns are linked to better outcomes and comfort during chemotherapy.
Edmonton, AlbertaAges 18 years+ - NCT05366699Recruiting
Procedure to help prevent arm swelling after breast surgery
This trial studies a new procedure meant to lower the chance of getting lymphedema (arm swelling) after breast cancer surgery that removes lymph nodes in the armpit. It may help patients reduce the risk of long-term arm swelling, especially after lymph node dissection.
San Francisco, CaliforniaAges 18–75 - NCT05291507RecruitingEarly Phase 1
MRI-guided focused ultrasound for breast cancer during surgery
This early study tests whether a device that uses focused ultrasound (guided by MRI) can be safely used during surgery for women with invasive breast cancer. It mainly looks at feasibility—whether the treatment can be delivered as planned and is safe.
Salt Lake City, UtahAges 18 years+ - NCT05293470Recruiting
Tracking the real-world effects of Piqray in Korea
This study monitors how well and how safely Piqray works for people in Korea in routine care. You may be invited if your breast cancer matches specific genetic and receptor test results and you are starting Piqray for the first time.
Cheonan Si, Chungcheongnam-doAges 18–100 - NCT05232916RecruitingPhase 3
Vaccine for HER2-positive breast cancer after standard treatment
This trial tests a vaccine (GLSI-100) that may help prevent the return of HER2-positive breast cancer. It is given to patients who still had cancer cells after initial treatment with trastuzumab, or who had stage III disease and achieved a complete response.
Mobile, AlabamaAges 18–100
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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.