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 1,194 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05766410RecruitingPhase 2
Testing three CDK4/6 pills to change the immune response
This phase 2 trial compares ribociclib, palbociclib, and abemaciclib to see how each one affects your body’s immune response in estrogen- and/or progesterone-receptor–positive, HER2-negative early breast cancer. If you fit the stage and health requirements, joining could help doctors learn which treatment best “modulates” the immune system.
TaipeiAges 20 years+ - NCT05831397Recruiting
Study tests tiny blood “packages” during breast cancer chemotherapy
This trial studies small particles in the blood (called extracellular vesicles) in people receiving chemotherapy before surgery for breast cancer. It may help doctors learn more about what those particles can tell them during neoadjuvant treatment.
Pavia, LombardyAges 18–80 - NCT05862064RecruitingPhase 3
Adding an immune drug and anti-blood-vessel treatment to chemo
This study tests whether adding an immune therapy (a PD-1 antibody) plus a blood-vessel–blocking treatment to standard chemo improves outcomes for people with surgically treated triple-negative breast cancer. Everyone gets chemotherapy, but some will also get the added drugs to try to reduce cancer coming back.
Shanghai, Shanghai MunicipalityAges 18–70 - NCT05891093RecruitingPhase 3
Fluzoparib plus hormone therapy after surgery for breast cancer
This Phase 3 trial tests whether fluzoparib added to standard hormone (endocrine) therapy after early breast cancer surgery can improve outcomes and safety. It may help patients whose tumors are ER-positive, HER2-negative, and a specific SNF3 subtype.
Beijing, Beijing MunicipalityAges 18–70 - NCT05989347RecruitingPhase 1
Dapagliflozin with chemo for breast cancer
This trial tests whether adding the drug dapagliflozin (a pill that lowers blood sugar) to standard chemotherapy before breast cancer surgery can improve outcomes. It is for women with high insulin levels and a higher BMI who are about to start chemotherapy.
New Haven, ConnecticutAges 18 years+ - NCT06085274Recruiting
SHINE: Using a special dye to find lymph nodes after breast cancer chemo
This study tests whether a special dye called indocyanine green (ICG) can help find sentinel lymph nodes during breast cancer surgery after chemotherapy. It may offer a safer and more effective way to check if cancer has spread.
Toronto, OntarioAges 18–80 - NCT06299202Recruiting
Predicting breast cancer treatment response with special mammogram
This study uses a special type of mammogram with contrast dye to see if it can predict how well breast cancer responds to chemotherapy before surgery. It's for people with HER2-positive or triple-negative breast cancer.
LyonAges 35 years+ - NCT06349512Recruiting
PET scan to predict treatment response in triple-negative breast cancer
This trial uses a special PET scan (68Ga-FAPI-46) to see if it can predict how well chemotherapy plus immunotherapy (pembrolizumab) works in people with triple-negative breast cancer before surgery. It aims to help doctors understand if the treatment is effective earlier.
AntonyAges 18 years+ - NCT06455904Recruiting
Cycling exercise during chemo for breast cancer
This trial tests whether a special cycling exercise program during chemotherapy can help women with breast cancer. It is for patients who are about to start a common type of chemotherapy and want to add physical activity to their treatment plan.
ColmarAges 18 years+ - NCT06493864RecruitingPhase 1
BL-B16D1 for advanced breast cancer and solid tumors
This trial tests a new drug called BL-B16D1 for people with advanced breast cancer or other solid tumors that have not responded to standard treatments. The goal is to see if the drug is safe and how well it works.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT06503783RecruitingPhase 1
Study of BL-M17D1 for advanced breast cancer and solid tumors
This trial tests a new drug, BL-M17D1, for people with advanced breast cancer (HER2 positive or negative) or other solid tumors that have spread. It aims to see if the drug is safe and effective.
Harbin, HeilongjiangAges 18–75 - NCT06560385Recruiting
Probiotics for hair loss in breast cancer patients
This study tests whether a special mix of probiotics (good bacteria) can help prevent or reduce hair loss caused by chemotherapy for breast cancer. You would take the probiotic powder every day during chemotherapy.
Hong KongAges 18–60 - NCT06609187RecruitingPhase 1
Study of GNC-077 for advanced breast cancer and other solid tumors
This trial tests a new drug called GNC-077 for people with advanced breast cancer or other solid tumors that have spread. It aims to see if the drug is safe and effective.
Beijing, Beijing MunicipalityAges 18 years+ - NCT06757621RecruitingPhase 3
Shorter Radiation for Intermediate-Risk Breast Cancer
This trial is testing a shorter course of radiation (called hypofractionated radiation) to the lymph nodes around the breast area after surgery for women with intermediate-risk breast cancer. The goal is to see if this approach works as well as standard radiation while possibly reducing side effects.
Beijing, Beijing MunicipalityAges 45 years+ - NCT07032545Recruiting
Broccoli microgreens study for obese breast cancer survivors
This trial tests if eating broccoli microgreens can improve metabolism in obese breast cancer survivors. Participants will avoid other cruciferous vegetables during the study to see how the microgreens affect their health.
Baltimore, MarylandAges Any age - NCT07087691Recruiting
Testing a device to mark breast cancer for surgery and monitoring
This trial tests a device called OneMark that helps doctors find and track breast cancer during surgery and follow-up. It may help make sure the cancer is removed completely.
La Jolla, CaliforniaAges 18 years+ - NCT07137793RecruitingPhase 2
Pentoxifylline to protect the heart during breast cancer chemo
This trial tests if a medicine called pentoxifylline can help prevent heart damage caused by doxorubicin, a common chemotherapy drug for breast cancer. If you are starting doxorubicin for the first time, this study may offer added heart protection.
DamanhūrAges 18–60 - NCT07237256RecruitingPhase 3
Testing less chemo for HR+ HER2- breast cancer with ribociclib
This trial tests whether some people with hormone receptor-positive, HER2-negative early breast cancer can safely receive less chemotherapy when also taking the targeted drug ribociclib after surgery. You may qualify if you have a specific stage of breast cancer and are planning to take hormone therapy for at least 5 years.
AmiensAges 18 years+ - NCT00437879Recruiting
Ultrasound and MRI scans to track breast cancer response early
This study uses ultrasound and/or MRI scans to see how breast cancer responds early while you start “neoadjuvant” treatment (chemotherapy, with or without radiation before surgery). It may help doctors spot response sooner and better understand which imaging changes match treatment benefit.
Toronto, OntarioAges Any age - NCT02422641RecruitingPhase 2
High-dose methotrexate for breast cancer in the brain lining
This Phase 2 trial tests whether giving high-dose methotrexate into the bloodstream can help treat breast cancer that has spread to the thin lining covering the brain and spinal cord. It may help reduce cancer in the leptomeningeal (brain-lining) area and control symptoms.
Baltimore, MarylandAges 18 years+ - NCT07461454RecruitingPhase 3
Comparing YL202 to other treatments for HR+/HER2- breast cancer
This trial tests a new drug called YL202 against other treatments chosen by your doctor for people with a certain type of advanced breast cancer (HR+/HER2-). It aims to see if YL202 works better. You may join if your cancer has spread, you've already tried chemotherapy, and you meet other health criteria.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT07500012Recruiting
Ear nerve stimulation for breast cancer pain
This study tests whether gentle electrical stimulation of a nerve in your ear (called taVNS) can help reduce pain and improve symptoms for breast cancer survivors. You would need to have finished your main treatments, have ongoing pain, and be willing to provide stool samples and undergo brain scans.
Tallahassee, FloridaAges 18–79 - NCT07551050Recruiting
Sacituzumab Govitecan for Advanced HER2-Negative Breast Cancer
This trial studies how well sacituzumab govitecan (a targeted cancer drug) works for metastatic breast cancer that is HER2-negative. The study focuses on real-world patient experiences and quality of life in Chinese patients.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT06459245Enrolling by invitation
Resistance training to prevent arm swelling after breast cancer surgery
This study tests whether doing resistance exercises (like light lifting) can help prevent arm swelling (lymphedema) after breast cancer surgery. If you had lymph nodes removed, you may benefit from learning safe ways to move and strengthen your arm.
BeijingAges 18 years+
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Common questions
- Are there clinical trials for breast cancer stage i?
- Yes. Clin2 currently lists 1,194 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.