Clinical trials
Early Breast Cancer clinical trials
Below are recruiting early breast cancer clinical trials, each written for real people, not researchers. We’re tracking 430 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07661927RecruitingPhase 2
Skipping hormone therapy for low-risk breast cancer
This trial tests whether women with very low-risk, early-stage breast cancer can safely skip hormone therapy after surgery. It is designed for women who are 60 or older and whose cancer shows no spread to lymph nodes and has favorable biology.
AngersAges 60 years+ - NCT05827081RecruitingPhase 3
Ribociclib plus endocrine therapy for early breast cancer
This trial studies whether adding ribociclib to standard hormone (endocrine) therapy lowers the risk of breast cancer coming back in early-stage, hormone-receptor–positive cancer. It mainly looks at safety and how well the treatment controls cancer after surgery and (sometimes) prior hormone treatment.
Birmingham, AlabamaAges 18–100 - NCT03201861RecruitingPhase 3
Cisplatin added after surgery for high-risk breast cancer
This trial checks whether adding cisplatin to standard chemotherapy after surgery helps women with high-risk early-stage breast cancer lower the chance of the cancer coming back. You would be followed to see how well treatment works and whether it is tolerated.
Shanghai, Shanghai MunicipalityAges 18–70 - NCT03536897Recruiting
Radiation registry after lumpectomy for certain early breast cancers
This study collects information about people with early-stage, hormone-receptor–positive breast cancer who have a lumpectomy and radiation. It may help doctors understand outcomes after this standard treatment and improve care for future patients.
Columbus, OhioAges 65 years+ - NCT03643861Recruiting
Radiation after lumpectomy for certain early breast cancers
This trial tests a short, highly targeted radiation plan given in five sessions after lumpectomy for early-stage breast cancer. It may help treat the remaining breast area while aiming to limit exposure to healthy tissue.
Birmingham, AlabamaAges 18–99 - NCT03646955Recruiting
Partial breast radiation versus no radiation after lumpectomy
This trial compares giving radiation only to part of the breast versus not giving radiation at all after breast-conserving surgery. It’s meant for women with early, hormone-driven breast cancer to see if skipping radiation can be safe and reduce treatment burden.
SantiagoAges 60 years+ - NCT03936478RecruitingPhase 2
MRI-guided partial breast radiation in three short treatments
This study tests a faster, targeted type of radiation for early breast cancer, using real-time MRI to help plan and guide treatment. It may help deliver the same cancer-fighting effect while limiting radiation to the rest of the breast.
Madison, WisconsinAges 40 years+ - NCT04134780Recruiting
Ultrasound tests to spot early breast cancer treatment response
This study uses special ultrasound imaging (and may use MRI results) to look for early signs of how locally advanced breast cancer responds to chemotherapy, with or without radiation. If the imaging changes early, it could help doctors adjust treatment sooner.
Houston, TexasAges 18 years+ - NCT04234386Recruiting
Short-course targeted radiation for early breast cancer
This trial tests a radiation plan called GammaPod to treat early breast cancer with precise targeting. It may help patients by delivering the treatment in a more focused way, while checking safety and tumor control in the smallest, well-defined cancers.
Baltimore, MarylandAges 45 years+ - NCT04291378Recruiting
Proton versus standard radiation for early breast cancer
This trial compares two types of radiation—proton therapy and standard photon therapy—for early breast cancer after surgery. It’s mainly for people whose usual radiation plan would put a higher dose to the heart and/or lungs, aiming to reduce that exposure.
AalborgAges 18 years+ - NCT04353557Recruiting
Blood test monitoring in early-stage breast cancer
This trial uses a special blood test to track cancer signals (called ctDNA) during and after treatment for early breast cancer. It aims to see whether monitoring these signals can help guide follow-up and treatment decisions.
Chongqing, Chongqing MunicipalityAges 18–80 - NCT04354064Recruiting
Blood DNA test to see early treatment response in solid tumors
This study looks at circulating tumor DNA, which is tiny bits of DNA found in blood, to help assess how solid tumors are responding early. It uses blood samples from healthy adults who are willing to donate.
St Louis, MissouriAges 18 years+ - NCT04427293RecruitingPhase 1
Testing lenvatinib and pembrolizumab before breast cancer surgery
This early-phase trial tests whether lenvatinib plus pembrolizumab given before surgery can help treat early-stage triple-negative breast cancer. If you qualify, you would receive study medicines before your planned operation to remove the tumor and nearby lymph nodes.
Chicago, IllinoisAges 18 years+ - NCT04434040RecruitingPhase 2
Atezolizumab and sacituzumab to prevent breast cancer return
This trial tests two medicines after surgery and chemotherapy to help lower the risk that triple-negative breast cancer comes back. It’s for people whose cancer still showed “residual” invasive disease after neoadjuvant (before-surgery) chemotherapy, and whose blood test shows traces of tumor DNA.
San Francisco, CaliforniaAges 18 years+ - NCT04469296Recruiting
Diet changes before surgery for hormone-receptor breast cancer
This trial tests whether changing your diet before your breast surgery can help people with early, hormone-receptor (ER/PR+) breast cancer. It focuses on patients who have not started treatment yet and want to keep surgery as the main treatment.
Montpellier, HeraultAges 18–80 - NCT04526587Recruiting
Study of breast cancer markers after CDK4/6 inhibitor treatment
This study looks at lab markers and clinical features in people with certain types of breast cancer who are being treated with, or have already been treated with a CDK4/6 inhibitor like abemaciclib (ciclib-based therapy). It aims to understand patterns that may help doctors better characterize breast cancer after these treatments.
Buffalo, New YorkAges 18 years+ - NCT04543799Recruiting
Sleep quality study in prostate and early breast cancer patients
This trial studies how sleep quality changes while people with prostate cancer or early breast cancer receive standard treatments. It may help doctors understand which treatment factors affect sleep and identify who might benefit from support for sleep problems.
BellinzonaAges 18 years+ - NCT04553770RecruitingPhase 2
Trastuzumab deruxtecan with or without anastrozole for early breast cancer
This Phase 2 study tests whether trastuzumab deruxtecan alone or combined with anastrozole can control early-stage breast cancer that is HER2-low and hormone-receptor positive. It aims to improve outcomes after initial surgical treatment by targeting cancer cells that may have low levels of HER2.
Fullerton, CaliforniaAges 18 years+ - NCT04603209Recruiting
Check-in registry for radiation during breast-conserving surgery
This registry study tracks people with early-stage, single-area breast cancer to understand outcomes when radiation is given during breast-conserving surgery. It may help doctors improve treatment planning for patients like you.
Santa Monica, CaliforniaAges 18 years+ - NCT04669873Recruiting
Partial breast radiation vs whole breast radiation after lumpectomy
This trial studies whether treating only part of the breast with radiation works as well as treating the whole breast in people with early breast cancer after lumpectomy. It may help reduce radiation exposure to healthy tissue, while still controlling the cancer.
São Paulo, São PauloAges 50–90 - NCT04671511Recruiting
Check targeted lymph node surgery for early breast cancer
This study tests a more focused surgery approach to remove lymph nodes in the armpit for people with early breast cancer that has been found in 1–2 axillary lymph nodes. It may help guide more precise treatment while checking how well this approach works.
Montreal, QuebecAges 18 years+ - NCT04679454Recruiting
One-dose pre-surgery radiation for early breast cancer
This study tests whether giving a single dose of radiation before breast surgery can be safe and effective for early-stage breast cancer. It may help by shrinking or treating the tumor right before the operation, depending on your case.
MilanAges 18 years+ - NCT04740697Recruiting
Complementary therapies to help people stay on tamoxifen
This study looks at whether adding alternative or complementary supports can improve how well people stick with tamoxifen treatment for early hormone-related breast cancer. If it helps adherence, it may help people benefit more reliably from their prescribed therapy.
ToulouseAges 1.5 years+ - NCT04790305RecruitingPhase 4
Huaier granules with standard therapy for early triple-negative breast cancer
This trial looks at whether adding Huaier granules to usual after-surgery treatment can improve outcomes for people with high-risk early-stage triple-negative breast cancer. It focuses on whether the added supplement is safe and helpful after standard care.
Hefei, AnhuiAges 18–70
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Common questions
- Are there clinical trials for early breast cancer?
- Yes. Clin2 currently lists 430 recruiting early 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 early 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 early 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.