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
- NCT05762900RecruitingPhase 2
Shorter breast radiation after surgery for low-risk breast cancer
This Phase 2 trial tests a shorter, focused radiation treatment after breast surgery, either alone or with an extra targeted boost. It’s for people with low-risk breast cancer and no spread to distant organs, aiming to keep results while reducing treatment time and side effects.
BeijingAges 35 years+ - NCT05913713Recruiting
High-intensity exercise after breast cancer chemotherapy
This study tests whether a structured high-intensity interval exercise program after chemotherapy is safe and helpful for people with early-stage breast cancer. It may improve physical fitness and recovery while they are on typical cancer treatments.
Gainesville, FloridaAges 18–85 - NCT06048835Recruiting
Studying tumor cells in breast cancer patients
This trial looks at tumor cells in the blood of women with breast cancer to understand them better. It may help doctors learn more about how the disease spreads.
Pavia, LombardyAges 18–90 - NCT06079983RecruitingPhase 3
JSKN003 vs. doctor's choice for HER2-low breast cancer
This trial compares a new experimental drug, JSKN003, to standard treatments chosen by your doctor for advanced breast cancer that tests as HER2-low (IHC 1+ or 2+ but not amplified). It's for people whose cancer has spread or can't be removed and who have already had one or two lines of chemotherapy.
Guangzhou, GuangdongAges 18 years+ - NCT06081959RecruitingPhase 3
Study of SKB264 for advanced HR+/HER2- breast cancer
This trial tests a new drug called SKB264 for people with a common type of breast cancer (HR+/HER2-) that has spread or come back and has not responded to at least one round of chemotherapy. It aims to see if this treatment can help shrink tumors or slow the disease.
Beijing, Beijing MunicipalityAges 18–75 - NCT06107673RecruitingPhase 2
Pill vs chemo before breast cancer surgery
This study compares taking a daily pill (dalpiciclib with hormone therapy) versus standard chemotherapy before breast cancer surgery. It's for postmenopausal women with a common type of early breast cancer that is strongly hormone-receptor positive and HER2-negative.
Shijiazhuang, HebeiAges 18–75 - NCT06143553RecruitingPhase 3
Paclitaxel micelles for metastatic breast cancer
This trial tests a new form of paclitaxel (a chemotherapy drug) for metastatic breast cancer that is HER2-negative. It may be an option if your cancer has returned or not improved after 2 to 4 previous treatments.
Nanjing, JiangsuAges 18 years+ - NCT06155305Recruiting
Organoid drug test before breast cancer surgery
This trial uses a lab-grown mini-tumor (organoid) from your biopsy to test which chemotherapy drugs work best for your cancer before you have surgery. The goal is to personalize your treatment and improve outcomes.
Hangzhou, ZhejiangAges 18–70 - NCT06282796Recruiting
Early heart risk monitoring for breast cancer chemo
This study tests a method to predict and warn about heart damage from a common type of breast cancer chemotherapy. If you have HER2-positive breast cancer and will receive anthracycline drugs, this trial may help monitor your heart health.
Fuzhou, FujianAges 18–80 - NCT06341894RecruitingPhase 2
Dalpiciclib and hormone therapy for early breast cancer
This trial tests a new pill (dalpiciclib) combined with hormone therapy for women with early-stage, hormone receptor positive/HER2-negative breast cancer. The goal is to see if this combination can lower the chance of cancer coming back after surgery.
Nanjing, JiangsuAges 18–75 - NCT06404697RecruitingPhase 2
Extra radiation to lymph nodes above collarbone for high-risk breast cancer
This trial tests giving a focused, higher dose of radiation to the lymph nodes above the collarbone after breast cancer treatment. It is for patients whose cancer did not fully disappear from those nodes after pre-surgery chemotherapy, to see if extra radiation can help prevent recurrence.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT06452394RecruitingPhase 2
Testing doxycycline with chemo for breast cancer
This trial tests whether adding the antibiotic doxycycline to standard chemotherapy before surgery can better target breast cancer stem cells in people with ER-positive, HER2-negative breast cancer. The goal is to improve treatment response.
Sankt Gallen, Canton of St. GallenAges 18 years+ - NCT06537752Recruiting
Study on symptoms of ethanol in breast cancer patients
This trial checks how breast cancer patients react to ethanol (alcohol) during chemotherapy with docetaxel. It aims to understand side effects and safety for people getting this treatment.
SeoulAges 19 years+ - NCT06545045Recruiting
Thinking and memory help after breast cancer treatment
This trial tests a cognitive rehabilitation program for breast cancer survivors who have ongoing problems with thinking, memory, or concentration after finishing treatment. The goal is to help improve daily mental function.
Columbia, MissouriAges 20–75 - NCT06633380Recruiting
Different physical activity strategies for breast cancer survivors
This study tests different ways to add physical activity into your daily routine to help manage side effects from breast cancer treatment. The goal is to see if simple, practical strategies can improve your health and well-being while you are on aromatase inhibitors.
Toronto, OntarioAges Any age - NCT06639178Recruiting
Cream to prevent hand-foot syndrome from capecitabine in breast cancer
This trial tests whether a special cream containing N-acetylcysteine and urea can prevent the painful hand-foot syndrome often caused by the chemotherapy drug capecitabine. If you have breast cancer and are about to start capecitabine, this study may help reduce side effects.
Aviano, PordenoneAges 18 years+ - NCT06641544RecruitingPhase 4
Testing different drug combos for HER2-positive breast cancer
This trial tests different combinations of the drug Inetetamab as a first treatment for breast cancer that has spread and is HER2-positive. It aims to find which combo works best and is safe for newly diagnosed metastatic patients.
Shanwei, GuangdongAges 18–70 - NCT06649565Recruiting
AI model to predict breast cancer treatment response
This trial uses an artificial intelligence model to predict how well breast cancer responds to neoadjuvant therapy (treatment before surgery). It aims to improve treatment planning by analyzing MRI scans taken before and after therapy.
Beijing, Beijing MunicipalityAges 18 years+ - NCT06728579RecruitingPhase 2
Group therapy for joint pain in breast cancer survivors
This study tests two supportive group programs—one using mindfulness skills, the other providing supportive talk therapy—to help breast cancer survivors manage joint pain caused by hormone-blocking pills. If you have ongoing joint pain and are taking an aromatase inhibitor, you may be able to join a free, video-based group.
San Diego, CaliforniaAges 18 years+ - NCT06761196Recruiting
Quality of life after breast cancer surgery
This study looks at how breast cancer surgery affects your quality of life. It includes people with any stage of breast cancer (or at high risk) who need breast surgery under general anesthesia. The goal is to learn how to better support your recovery and well-being.
ColmarAges 18 years+ - NCT06811870RecruitingPhase 1/Phase 2
Hyperbaric oxygen before surgery for breast cancer
This trial tests adding hyperbaric oxygen (breathing pure oxygen in a pressurized chamber) before standard chemotherapy for breast cancer. The goal is to see if it helps shrink the tumor more effectively before surgery.
Guangzhou, GuangdongAges 18–60 - NCT06831838Recruiting
Pain management program for breast cancer survivors with joint pain
This trial tests a cognitive behavioral therapy (CBT) based program to help relieve joint and muscle pain caused by aromatase inhibitors, a common hormone therapy for breast cancer. It aims to improve your quality of life and reduce symptoms.
Jacksonville, FloridaAges 18 years+ - NCT06896162Recruiting
Genetic test to guide first or second treatment for advanced cancer
This study looks at whether using a detailed genetic test of your tumor can help pick the best first or second treatment for advanced lung, colon, breast, or bladder cancer. The goal is to see if this personalized approach helps people live longer.
Chapel Hill, North CarolinaAges 18 years+ - NCT07007169RecruitingPhase 2
Mediterranean diet study for early breast cancer
This trial tests whether eating a Mediterranean-style diet (rich in vegetables, fruits, whole grains, and healthy fats) can help improve outcomes for women with early breast cancer who are receiving chemotherapy. You will be asked to follow this diet and keep a food diary using an online tool.
EsbjergAges 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.