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
- NCT05314114Recruiting
Skipping underarm surgery for some breast cancers after chemotherapy
This trial studies whether it’s safe to skip removing underarm lymph nodes (axillary surgery) for people with certain breast cancers after they respond to “NACT,” a type of chemotherapy. It also uses planned breast-conserving surgery and whole-breast radiation to see if outcomes stay similar while reducing surgery-related side effects.
Beijing, Beijing MunicipalityAges 18–70 - NCT04254263RecruitingPhase 3
Pyrotinib after breast cancer therapy for HER2-positive early disease
This trial studies whether adding pyrotinib after standard treatment helps prevent breast cancer from coming back in people with HER2-positive early-stage breast cancer. You may be eligible if you finished chemotherapy plus trastuzumab and still had signs of cancer in the tissue removed during surgery.
Shanghai, Shanghai MunicipalityAges 18–70 - NCT06696378Recruiting
Melatonin, exercise, and breast cancer wellness study
This study tests if taking melatonin and doing a supervised exercise program together can improve health and well-being in women who had breast cancer 5 or more years ago and have gone through menopause. It aims to find a safe, natural way to feel better after treatment.
Soria, SoriaAges 60–80 - NCT06656624RecruitingPhase 2
Ribociclib plus hormone therapy for advanced breast cancer
This trial tests a new approach: starting with a targeted pill (ribociclib) plus hormone therapy (an aromatase inhibitor), instead of immediate chemotherapy, for women with a specific type of breast cancer (ER low-positive, HER2-negative) that is growing quickly. If eligible, you would not have received any prior treatment for your advanced cancer.
Nanjing, JiangsuAges 18–99 - NCT06452485Recruiting
Re-irradiation with or without hyperthermia, or surgery only for recurrent breast cancer
This trial compares three treatment options for breast cancer that has come back in the chest or lymph nodes after previous radiation. It looks at adding hyperthermia (heating the tumor area) to re-irradiation, versus just re-irradiation or surgery alone, to see which offers better quality of life and survival with fewer side effects.
AmsterdamAges 18 years+ - NCT03417115Recruiting
Breast cancer registry study of treatment and outcomes
This is a registry study that collects real-world information about breast cancer care at the start of treatment. It may help researchers better understand which treatments work best for different groups of people.
Many LocationsAges 18 years+ - NCT04744506Recruiting
Targeted removal of armpit nodes after chemotherapy for breast cancer
This trial studies a more targeted surgery to remove cancer-involved lymph nodes in the armpit after you finish chemotherapy before surgery. It may help doctors better remove affected nodes while avoiding unnecessary tissue removal.
Hangzhou, ZhejiangAges 18–85 - NCT04771871RecruitingPhase 2
Study tiny RNA changes in triple-negative breast cancer
This trial studies patterns of microRNA (tiny gene-regulating molecules) in women with triple-negative breast cancer. By comparing these microRNA profiles, the study hopes to better understand the disease and potentially guide future treatment choices.
Ile-Ife, OshunAges 18–70 - NCT04947280RecruitingPhase 1/Phase 2
Radiation split into small doses for breast cancer bone spread
This trial studies a type of focused radiation given in smaller parts to treat bone metastases from breast cancer. It may help shrink tumors and improve control of pain or growth when standard treatments haven’t worked or surgery isn’t possible.
Shanghai, Shanghai MunicipalityAges Any age - NCT05327543Recruiting
Online yoga program for better quality of life
This study tests whether doing online yoga can improve quality of life in people with non-metastatic breast cancer. It’s meant to help with day-to-day well-being after cancer treatment.
Berlin, State of BerlinAges 18–75 - NCT05440149RecruitingPhase 3
Radiation after surgery for certain node-positive breast cancer
This study tests whether giving radiation after breast surgery can improve outcomes for people with breast cancer that has spread to nearby lymph nodes (N1). You may be a candidate if you’ve already had surgery and meet specific details about your lymph nodes and cancer type.
Seoul, Jongro-guAges 19 years+ - NCT05866458Recruiting
Radiation after lumpectomy for node-negative breast cancer
This trial studies whether a specific radiation approach after lumpectomy can be helpful for certain people with early breast cancer that did not spread to lymph nodes at diagnosis. It focuses on people who finish neoadjuvant (before-surgery) treatment and reach a full response on final pathology.
Cudgen, CudgenAges 50 years+ - NCT05909332RecruitingPhase 3
Tested antivascular drug plus chemo versus chemo alone for TNBC
This Phase 3 trial compares an “anti-blood-vessel” drug added to chemotherapy versus chemotherapy alone for people with stage II–IIIC triple-negative breast cancer that has been completely removed with surgery. The goal is to see if adding the study drug improves outcomes after surgery (adjuvant treatment).
Beijing, Beijing MunicipalityAges 18–70 - NCT06148038RecruitingPhase 1
CBD oil for breast cancer before surgery
This trial tests if taking CBD oil before surgery can help treat invasive breast cancer. It is for women with fast-growing tumors who are scheduled for surgery.
Charleston, South CarolinaAges 18 years+ - NCT06279364RecruitingPhase 3
Testing SKB264 vs standard chemo for advanced triple-negative breast cancer
This trial tests a new drug called SKB264 against standard chemotherapy options for people with advanced triple-negative breast cancer who have not yet received chemotherapy for their advanced disease. The goal is to see if SKB264 works better than the usual treatments.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT06398067Recruiting
Stress management for breast and gynecologic cancer patients
This trial tests a stress management program for women in Vietnam recently diagnosed with breast or gynecologic cancer. It aims to help you cope with treatment and recovery.
Can ThoAges 18 years+ - NCT06490536RecruitingPhase 3
Testing a new treatment for high-risk colon cancer after surgery
This trial tests a new treatment approach for people with certain high-risk colon cancers (stage II or III in the upper colon) after surgery. It aims to see if adding a study drug can help prevent the cancer from coming back.
BerlinAges 18 years+ - NCT06582017RecruitingPhase 1
Study of QXL138AM for advanced solid tumors and multiple myeloma
This trial tests an investigational drug called QXL138AM for people with advanced solid tumors or multiple myeloma that has not responded to standard treatments. The goal is to see if the drug is safe and effective.
Los Angeles, CaliforniaAges 18 years+ - NCT06603597Recruiting
HER2-positive breast cancer registry
This registry tracks people with HER2-positive breast cancer to learn more about the disease and how it's treated. You can join at any stage of cancer.
Overland Park, KansasAges 18 years+ - NCT06697158Recruiting
Lymphedema therapy and its effect on sleep and quality of life
This study tests a treatment called complex decongestive physiotherapy for women who have swelling in one arm after breast cancer surgery. It looks at whether this therapy can improve their sleep and overall quality of life.
BoluAges 18–85 - NCT06831955RecruitingPhase 2
Lifestyle program to boost chemo before breast cancer surgery
This trial tests whether a structured lifestyle program (diet and exercise) can make standard chemotherapy before surgery work better for triple-negative breast cancer. It looks at how the program affects your body’s response to treatment and your overall health.
AntwerpAges 18 years+ - NCT06911970Recruiting
Exercise and immune response in cancer treatment
This trial tests whether aerobic exercise can help your immune system fight cancer better during chemotherapy or immunotherapy. It is for people with breast or colon cancer that has not spread to other parts of the body.
Sherbrooke, QuebecAges 40–70 - NCT06920810RecruitingPhase 4
Mistletoe extract plus pembrolizumab for triple-negative breast cancer
This trial tests adding a mistletoe extract (Viscum album) to standard immunotherapy (pembrolizumab) for people with triple-negative breast cancer who have had surgery and radiation. The goal is to see if the combination works better than immunotherapy alone.
Goyang-si, Gyeonggi-doAges 19 years+ - NCT07019363RecruitingPhase 3
CDK4/6 inhibitor plus hormone therapy for high-risk breast cancer
This trial tests whether adding a CDK4/6 inhibitor (a type of targeted pill) to standard hormone therapy after surgery can lower the risk of breast cancer coming back in women with high-risk, hormone-receptor-positive, HER2-positive early breast cancer.
ShanghaiAges 18–70
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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.