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 1,199 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06999798RecruitingPhase 1
A better ultrasound marker for lymph nodes in breast cancer
This trial tests a new ultrasound marker to help surgeons find and remove cancer-positive lymph nodes during breast cancer surgery. The marker makes the node easier to see on ultrasound so it can be taken out accurately.
Rochester, MinnesotaAges 18 years+ - NCT05874297Recruiting
Online nutrition coaching to help breast cancer chemo side effects
This study tests whether an online nutrition education program can reduce or lessen side effects from chemotherapy in people with breast cancer. If you qualify, you would complete online lessons and questionnaires through the rest of your chemotherapy.
Seattle, WashingtonAges 18 years+ - NCT07512271Recruiting
AI Education Tool for Breast Cancer Patients
This study tests a new computer-based education module created by artificial intelligence to help breast cancer patients understand their diagnosis and treatment options. The goal is to see if this tool helps patients feel more informed and prepared for their care.
San Francisco, CaliforniaAges 18 years+ - NCT06823414Recruiting
Robotic-assisted nipple-sparing mastectomy trial
This trial tests a robotic-assisted surgery technique for women who need a mastectomy but can keep their skin and nipple. It aims to improve outcomes for breast cancer patients and those at high risk.
A Coruña, GaliciaAges 18 years+ - NCT06781281Recruiting
Chemo plus immunotherapy for early HR+/HER2- breast cancer
This trial tests adding an immunotherapy drug (serplulimab) to standard chemotherapy for early-stage HR+/HER2- breast cancer. The goal is to see if the combination works better than chemo alone before surgery.
ZhengzhouAges 18 years+ - NCT06765707Enrolling by invitation
Monitoring symptoms to improve medication use in breast cancer
This trial tests if tracking how you feel and reporting your symptoms can help women with hormone receptor-positive breast cancer take their hormone-blocking medication more consistently. It may be a good fit if you have been prescribed aromatase inhibitors or similar therapy and have had trouble taking it as directed.
Chicago, IllinoisAges 18 years+ - NCT06534125Recruiting
Acupuncture to prevent joint pain from hormone therapy in Black women
This study tests whether acupuncture can prevent joint pain caused by a common hormone therapy pill (aromatase inhibitor) in Black women who have finished treatment for early-stage breast cancer.
Atlanta, GeorgiaAges 18 years+ - NCT06217185RecruitingPhase 4
Pyrotinib and trastuzumab with chemo for HER2+ advanced breast cancer
This trial tests a combination of two targeted medicines (pyrotinib and trastuzumab) with chemotherapy to treat HER2-positive advanced breast cancer that has returned or spread after stopping trastuzumab.
Shijiazhuang, HebeiAges 18–70 - NCT06026657RecruitingPhase 1/Phase 2
NK cells with or without naxitamab for GD2-positive breast cancer
This trial tests a new treatment using immune cells called NK cells combined with chemotherapy (gemcitabine) and possibly naxitamab for people with a certain type of advanced breast cancer that has spread. It aims to see if this approach can help when standard treatments have stopped working.
Columbus, OhioAges 18 years+ - NCT06042569RecruitingPhase 2
Lower-dose chemo for older women with HER2-negative breast cancer
This trial tests whether a lower dose of two chemotherapy drugs (docetaxel and cyclophosphamide) works well for women 65 and older with early-stage HER2-negative breast cancer. The goal is to maintain effectiveness while reducing side effects in this group.
Duarte, CaliforniaAges 65 years+ - NCT05910398RecruitingPhase 3
Extending anti-HER2 treatment after breast cancer surgery
This Phase 3 trial tests whether continuing or pausing the anti-HER2 medicine pyrotinib after surgery can lower the chance that invasive HER2-positive breast cancer comes back. It may help people who have recently finished trastuzumab or T-DM1 and are well enough to take tablets.
ShanghaiAges 18 years+ - NCT05834764RecruitingPhase 2
Pyrotinib for high-risk HER2-positive early breast cancer
This Phase 2 trial tests pyrotinib, a HER2-targeted cancer medicine, in people with high-risk, HER2-positive breast cancer after surgery. It aims to lower the chance the cancer comes back, especially when standard treatment did not fully clear the tumor.
Nanjing, JiangsuAges 18–75 - NCT05642897Recruiting
Mind program for women receiving breast cancer radiotherapy
This trial tests a “Mind Programme” designed to support women with breast cancer who are currently receiving radiation treatment. It may help with emotional well-being during radiotherapy, but you must meet specific health and language requirements.
CoimbraAges 18–70 - NCT05417867Recruiting
Tracking gut bacteria changes and nausea during chemo
This study looks at how changes in the gut “microbiome” (your gut bacteria) relate to fatigue and chemotherapy-induced nausea in people with early-stage breast cancer. It may help doctors better understand why nausea and fatigue happen and how to predict or manage them during treatment.
Scottsdale, ArizonaAges 20 years+ - NCT05460780Recruiting
Tissue device study for breast reconstruction after mastectomy
This first-time-in-humans study tests a tissue-engineering chamber called MATTISSE® to help the healing of breast reconstruction using specific tissue flaps after mastectomy for cancer. If you qualify, you would be assessed for safety and how well the reconstructed tissue heals.
Strasbourg, FranceAges 18 years+ - NCT05586256Recruiting
Shorter radiation for early breast cancer after breast surgery
This trial studies giving whole-breast radiation in a shorter, more concentrated way after breast-conserving surgery. It aims to see if this “ultra-short” schedule is effective and safe for people with early breast cancer.
PerugiaAges 18–99 - NCT05464810RecruitingEarly Phase 1
Letrozole with or without a cholesterol drug for early breast cancer
This early-phase study tests whether adding simvastatin to letrozole can improve outcomes in people with stage I–III breast cancer that grows with hormone signals (hormone receptor positive) and does not have HER2. It looks mainly at whether the approach is safe and useful for this specific breast cancer type.
Atlanta, GeorgiaAges 18 years+ - NCT05417308RecruitingEarly Phase 1
Minoxidil for hair loss from breast cancer hormone therapy
This early-phase study tests whether using minoxidil as a lotion (topical) or by mouth (oral) can improve hair loss caused by breast cancer hormone (endocrine) therapy. It may help you keep or regrow hair while continuing your cancer treatment.
Columbus, OhioAges 18 years+ - NCT06334354Recruiting
Thinking and memory changes in older breast cancer survivors
This study looks at how thinking and memory changes as you age, and whether having had breast cancer affects those changes. You will do computer tasks and answer questions to help researchers understand the connection between aging, breast cancer treatment, and cognitive health.
Basking Ridge, New JerseyAges 60–80 - NCT04985266RecruitingPhase 2
Watch blood DNA for early breast cancer return, then add palbociclib
This study checks for early signs that ER-positive, HER2-negative breast cancer may be coming back by testing your blood for cancer DNA. If signs are found, it tests whether adding palbociclib plus fulvestrant works better than standard hormone therapy alone to prevent recurrence.
AngersAges 18 years+ - NCT05595499RecruitingPhase 2
Fisetin for better walking and strength in breast cancer survivors
This study tests whether fisetin (a natural compound) can improve physical function, like walking ability, in breast cancer survivors who feel frail. It may help strengthen muscles and improve daily activity after treatment.
Alhambra, CaliforniaAges Any age - NCT04836156RecruitingPhase 1/Phase 2
Personalized pre-surgery treatment for HER2-negative early breast cancer
This study tests a treatment plan chosen using lab drug testing on a patient’s tumor (in a dish). It may help improve outcomes for people with early breast cancer that is HER2-negative by matching therapy to what the tumor seems sensitive to.
BeijingAges 18–75 - NCT05530057RecruitingPhase 2
Eribulin plus or minus trastuzumab for HER2-positive breast cancer
This trial tests whether adding trastuzumab to eribulin improves outcomes for people with HER2-positive breast cancer that has come back or spread. It’s meant for patients whose cancer has progressed after prior HER2 and chemotherapy treatments.
SeoulAges 18 years+ - NCT05259410Recruiting
Time-restricted eating during breast cancer chemotherapy
This trial studies whether time-restricted eating (eating only within certain hours) during breast cancer chemotherapy is safe and helpful. Researchers want to see if it improves chemotherapy outcomes and side effects for people with stage I–III breast cancer.
Chicago, IllinoisAges 25–99
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Common questions
- Are there clinical trials for breast cancer stage i?
- Yes. Clin2 currently lists 1,199 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.