Clinical trials
Breast Cancer Stage I clinical trials
Below are recruiting breast cancer stage i clinical trials, each written for real people, not researchers. We’re tracking 1,170 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07188246RecruitingPhase 2
Radiation and immunotherapy before chemo for breast cancer
This trial tests a new approach for breast cancer that combines a short course of focused radiation (SBRT) with an injection of the immunotherapy drug pembrolizumab directly into the tumor, followed by standard chemotherapy before surgery. The goal is to see if this combination helps shrink the tumor more effectively before surgery.
London, OntarioAges 18 years+ - NCT06225284RecruitingPhase 2
Chemotherapy with or without hormone drug for premenopausal TNBC
This trial tests whether adding a hormone-blocking drug (GnRH agonist) to standard chemotherapy before surgery helps premenopausal women with triple-negative breast cancer. It aims to improve treatment outcomes by targeting hormones that may fuel tumor growth.
TaipeiAges 18 years+ - NCT07179744Recruiting
Skipping radiation for low-risk node-positive breast cancer
This trial tests whether some women with low-risk breast cancer that has spread to a few lymph nodes can safely skip radiation therapy after surgery. It aims to reduce side effects while keeping the cancer from coming back.
Guangzhou, GuangdongAges 18–70 - NCT07164976RecruitingPhase 1/Phase 2
Ribociclib for advanced HR+ HER2- breast cancer
This trial tests a new combination of ribociclib and anastrozole as a first treatment for advanced hormone receptor-positive, HER2-negative breast cancer that has not been treated before. It may help if you have not received any prior therapy for metastatic disease.
NagoyaAges 18 years+ - NCT04625023Recruiting
Study of breast cancer biology using mechanics in the body
This trial looks at how breast cancer works in the body, using new “mechanics” measurements to better guide treatment. It may be most helpful if you have (or may have) breast cancer and can take part in study visits and procedures.
Bergamo, BergamoAges 18 years+ - NCT07158021RecruitingPhase 2
Comparing two ovarian suppression drugs for breast cancer
This trial tests two hormone-blocking injections (leuprolide and goserelin) to suppress ovarian function in premenopausal women with breast cancer. It aims to see how well these drugs work when taken with standard hormone pills.
Ann Arbor, MichiganAges 18 years+ - NCT07159451RecruitingPhase 2
Elacestrant for premenopausal women with early breast cancer
This trial tests a new hormone therapy pill, elacestrant, given alone or with another drug to suppress ovarian function before surgery. It's for premenopausal women with early-stage, hormone receptor-positive, HER2-negative breast cancer to see if it can shrink the tumor.
VillejuifAges 18 years+ - NCT07152782RecruitingPhase 2
T-DXd with or without neratinib for HER2+ breast cancer brain metastases
This trial tests whether adding neratinib to T-DXd (trastuzumab deruxtecan) works better than T-DXd alone for women with HER2-positive breast cancer that has spread to the brain. It is for those who have not had these specific drugs before.
ShanghaiAges 18–70 - NCT07150208RecruitingPhase 2
T-DXd with or without Avastin for HER2-low breast cancer that spread to the brain
This trial tests a combination of two targeted drugs (T-DXd and bevacizumab) for people with HER2-low breast cancer that has spread to the brain. It aims to see if adding bevacizumab helps the main drug work better against brain metastases.
ShanghaiAges 18–70 - NCT07140679RecruitingPhase 2
Immunotherapy after surgery for certain colon cancers
This trial tests whether giving an immunotherapy drug called toripalimab after surgery can lower the chance of colon cancer coming back. It is for people whose tumors have a specific genetic feature called mismatch repair deficiency (dMMR) and who have had their cancer completely removed.
Atlanta, GeorgiaAges 18 years+ - NCT07116642Recruiting
Scar placement after breast-conserving surgery for breast cancer
This study compares how different scar placements after breast-conserving surgery affect your recovery and quality of life. By joining, you help doctors learn which scar location leads to the best outcomes for patients like you.
Leeds, West YorkshireAges 18 years+ - NCT07121595RecruitingPhase 2
Personalized neck radiation for mouth cancer with sentinel node biopsy
This study tests whether a personalized approach to radiation therapy after surgery, guided by a special lymph node biopsy (sentinel node biopsy), can effectively treat mouth cancer while reducing side effects. It is for people whose cancer is on one side of the mouth and has not spread to the other side of the neck or beyond.
Ann Arbor, MichiganAges 18 years+ - NCT06902051Recruiting
Side-lying position for left breast cancer radiation
This trial tests whether lying on your right side during radiation therapy for left breast cancer can reduce side effects. It is for women who have had surgery for newly diagnosed left breast cancer and need radiation.
Guangzhou, Guangdong ProvinseAges 18–70 - NCT07112053RecruitingPhase 2
Vaccine with hormone therapy or chemo for advanced breast cancer
This trial tests a vaccine (STEMVAC) given with your standard hormone therapy or chemotherapy. It is for people with advanced hormone receptor-positive, HER2-negative breast cancer who are already on certain treatments. The goal is to see if adding the vaccine can help control the cancer better.
Seattle, WashingtonAges 18 years+ - NCT07111728Recruiting
Checking tumor margins during breast cancer surgery
This study tests a new imaging tool that helps surgeons see if any cancer cells are left behind during a lumpectomy. It may reduce the need for a second surgery.
Pavia, LombardyAges 18–85 - NCT07106632RecruitingPhase 3
Genomic test to guide chemotherapy in young women with breast cancer
This trial uses a genomic test called Prosigna to help decide whether young women with hormone-sensitive breast cancer need chemotherapy after surgery. It aims to avoid unnecessary chemotherapy in those who can safely skip it.
BrusselsAges 35–45 - NCT07107594Recruiting
Exercise, nutrition and support program for early breast cancer
This trial tests a program combining physical exercise, psychological support and nutritional advice before chemotherapy to see if it can improve treatment response in early breast cancer patients.
BarcelonaAges 18 years+ - NCT07109817RecruitingPhase 2
Desloratadine to prevent nerve damage from taxane chemo in breast cancer
This trial tests if the allergy medicine desloratadine can prevent nerve damage (numbness, tingling, pain) caused by taxane chemotherapy in people with early-stage breast cancer. Taking desloratadine daily during chemo may help protect your nerves.
The Bronx, New YorkAges 18 years+ - NCT07102381RecruitingPhase 2
Zanidatamab plus chemo before surgery for HER2+ breast cancer
This trial tests a new drug called zanidatamab combined with chemotherapy to shrink HER2-positive breast cancer before surgery. It may help improve treatment outcomes for people with stage 2 or 3 breast cancer that has not spread.
Long Beach, CaliforniaAges 18 years+ - NCT07095023Recruiting
Oral chemo and targeted therapy before breast cancer surgery
This trial tests a combination of an oral chemotherapy pill (paclitaxel) with two targeted antibodies (pertuzumab and trastuzumab) given before surgery for HER2-positive breast cancer. The goal is to shrink the tumor and make surgery more effective.
Beijing, Beijing MunicipalityAges 18–75 - NCT07095114Recruiting
Disappearing markers for daily breast radiation
This study tests whether small disappearing ink marks can be used to guide daily radiation treatments for breast cancer. It may help make radiation more precise and comfortable.
Detroit, MichiganAges 18 years+ - 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 - NCT07078604RecruitingPhase 2
Vaccine with chemotherapy for advanced triple-negative breast cancer
This trial tests a cancer vaccine called STEMVAC combined with chemotherapy in people with a type of breast cancer that has spread and does not have certain markers. The goal is to see if adding the vaccine helps the chemotherapy work better.
Seattle, WashingtonAges 18 years+ - NCT07076485RecruitingPhase 2
Shorter radiation after surgery for node-positive breast cancer
This trial tests shorter radiation schedules for people with breast cancer that has spread to lymph nodes or is high-risk. It aims to find a shorter course of radiation that is just as effective after surgery.
Loveland, ColoradoAges 18 years+
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Common questions
- Are there clinical trials for breast cancer stage i?
- Yes. Clin2 currently lists 1,170 recruiting breast cancer stage i 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 stage i 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 stage i 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-stage 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.