Clinical trials
Early-stage Breast Cancer clinical trials
Below are recruiting early-stage breast cancer clinical trials, each written for real people, not researchers. We’re tracking 123 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- 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+ - 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+ - 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 - NCT04891068RecruitingPhase 2
Pre-surgery low-dose azacitidine for high-risk early breast cancer
This trial studies whether giving a low dose of azacitidine before surgery can shrink or control high-risk early breast cancer. It’s meant for adults whose cancer has not yet spread to distant organs.
Chicago, IllinoisAges 18 years+ - NCT06970912RecruitingPhase 2
ctDNA-Guided Reduced Chemo in HR+/HER2- Breast Cancer
This study is testing whether using a ctDNA blood test can help doctors decide if patients with hormone receptor-positive, HER2-negative breast cancer can safely receive less intensive chemotherapy after surgery. The goal is to reduce side effects while still preventing the cancer from coming back.
Beijing, Beijing MunicipalityAges 18–75 - NCT07366112RecruitingPhase 2
CDK4/6 inhibitor plus hormone therapy before breast cancer surgery
This trial tests a combination of a CDK4/6 inhibitor (a type of targeted therapy) with hormone therapy given before surgery for early-stage breast cancer that is hormone receptor-positive and HER2-negative. It aims to see if this approach can shrink tumors and improve outcomes.
Beijing, Beijing MunicipalityAges 18–75 - NCT05332561RecruitingPhase 2
Personalized treatment after surgery for early breast cancer
This Phase 2 study checks whether adding a personalized (biomarker-matched) medicine after standard chemotherapy and surgery lowers the risk of breast cancer coming back. Your study drug choice depends on tumor test results (from your tumor’s genetics and immune markers).
Heidelberg, Baden-WurttembergAges 18 years+ - NCT05345860Recruiting
Using MRD results to guide extra treatment after breast surgery
This trial checks “MRD” (tiny leftover cancer signals after surgery) to help decide the best additional treatment for early-stage breast cancer. It may help tailor therapy so you get the most useful medicines while avoiding unnecessary treatment.
Beijing, Beijing MunicipalityAges 18 years+ - NCT05386719Recruiting
Cardiometabolic screening for people after early breast cancer
This trial tests a screening program to look for heart- and metabolism-related health risks in people who have completed treatment for early breast cancer. It may help catch problems earlier so you can get timely care.
Baltimore, MarylandAges 18 years+ - NCT05502523Recruiting
Blood test DNA levels after lung surgery
This study looks at how different lung surgical techniques affect levels of tumor DNA in the blood before and after surgery for early-stage lung cancer. It may help doctors choose surgical approaches and use a blood test to monitor cancer after surgery.
Abington, PennsylvaniaAges 18 years+ - NCT05504707RecruitingPhase 1
Study drug for early-stage, HER2-negative, low-risk hormone breast cancer
This Phase 1 trial tests a new study drug called DC1 given before standard breast cancer treatments. It focuses on people with HER2-negative breast cancer that is “hormone negative” or “hormone low,” aiming to see if the treatment is safe and whether it may work before surgery or other local therapy.
Tampa, FloridaAges 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+ - NCT05582499RecruitingPhase 2
Neoadjuvant treatment study for certain breast cancers
This Phase 2 study tests a “precision platform” approach—treatment before surgery—based on specific test results from your breast tumor. It may help determine whether the treatment plan works better for people with particular breast cancer subtypes and healthy organ function.
Shanghai, Shanghai MunicipalityAges 18–70 - NCT05753618RecruitingPhase 4
Skipping growth-factor shots during breast cancer chemotherapy
This trial tests whether patients can safely skip a preventive white-blood-cell growth shot (G-CSF) while receiving a common breast cancer chemotherapy regimen. It may help reduce injections and side effects, while watching closely for fevers and low white blood counts.
Kingston, OntarioAges 18 years+ - NCT05760612RecruitingPhase 3
After breast cancer surgery, test neratinib plus trastuzumab
This trial studies whether adding neratinib to standard trastuzumab treatment after neoadjuvant (before-surgery) therapy lowers the risk of breast cancer coming back. It is for people whose breast cancer is hormone-receptor positive and HER2 positive, with residual cancer found after neoadjuvant treatment.
GuangzhouAges 18–70 - NCT05774951RecruitingPhase 3
Camizestrant for hormone-positive, HER2-negative early breast cancer
This trial tests camizestrant, a medicine that blocks estrogen signaling, to help prevent hormone-positive, HER2-negative early breast cancer from coming back. You may be eligible if your cancer has higher- or intermediate-risk features and you already completed at least 2 years of hormone therapy.
Birmingham, AlabamaAges 18–130 - NCT05833659Recruiting
Comparing two breast reconstruction positions after mastectomy
This trial compares two surgical techniques for breast reconstruction: placing the implant under the chest muscle versus in front of it. It may help people understand which approach works better for comfort and healing after mastectomy.
Beijing, Beijing MunicipalityAges 18–70 - NCT05877859Recruiting
Testing pembrolizumab with chemo before breast cancer surgery
This trial studies whether adding pembrolizumab (an immunotherapy) to standard chemotherapy before surgery improves immune and clinical responses in people with early-stage triple-negative breast cancer. You may benefit by getting a potentially more effective treatment plan, while the study team closely monitors your response.
Atlanta, GeorgiaAges 18 years+ - NCT05906407Recruiting
Genetic-guided treatment planning for high-risk early breast cancer
This study uses tumor genetic testing to help plan more precise treatment for people with early high-risk breast cancer. You may be asked to give a recent tumor sample so researchers can match your cancer features with the best available options.
AugsburgAges 18–80 - NCT05957068Recruiting
Exercise program for breast cancer after surgery
This study tests an exercise intervention for people with early-to-mid stage breast cancer soon after curative breast surgery (and after chemo and/or radiation if you had it). It may help improve recovery, physical strength, and overall wellbeing by making exercise safer and more structured during this period.
SingaporeAges 21–99 - NCT05978648RecruitingPhase 2
Trilaciclib for early-stage HR-negative breast cancer after surgery
This trial tests if adding trilaciclib to standard chemotherapy after surgery can help people with hormone receptor-negative breast cancer. It aims to reduce side effects and improve treatment outcomes.
Guangzhou, GangdongAges 18 years+ - NCT06035016Recruiting
Pyrotinib and capecitabine after surgery for HER2+ breast cancer
This study tests whether taking pyrotinib (a daily pill) with capecitabine (another pill) after breast cancer surgery can help prevent HER2-positive early-stage breast cancer from coming back. It is for women who have already had their cancer removed and meet certain risk criteria.
Beijing, Beijing MunicipalityAges 18–75 - 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+ - NCT06150898RecruitingPhase 2
Ketorolac and pregabalin for estrogen receptor positive breast cancer before surgery
This trial tests whether two medications, ketorolac (a pain reliever) and pregabalin (a nerve pain drug), can help treat estrogen receptor (ER) positive breast cancer when taken before surgery. It may offer better pain control and possibly improve cancer outcomes.
Brussels, Brussels CapitalAges 18–70
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Common questions
- Are there clinical trials for early-stage breast cancer?
- Yes. Clin2 currently lists 123 recruiting early-stage 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-stage 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-stage 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
- Breast Cancer Early Stage Breast Cancer (Stage 1-3)
- Breast Cancer (Triple Negative Breast Cancer (TNBC))
- Anatomic Stage IV Breast Cancer AJCC v8
- Anatomic Stage III Breast Cancer AJCC v8
- Anatomic Stage II Breast Cancer AJCC v8
- Anatomic Stage I Breast Cancer AJCC v8
- Early Breast Cancer
- Breast Cancer Stage III
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.