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
- NCT05977036Recruiting
Choosing breast cancer treatment with biomarker testing
This study helps doctors choose the best first or second treatment for breast cancer that has spread or can't be removed. It uses a blood test to look at your cancer's markers, which may help guide which therapy is right for you. The study is for people with HR-positive, HER2-negative breast cancer who are about to start treatment with hormone therapy plus a CDK4/6 inhibitor, or another type of therapy.
St Louis, MissouriAges 18 years+ - 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+ - NCT05964504Recruiting
Registry study for metastatic lobular breast cancer
This study collects health information from adults with invasive lobular breast cancer that has spread (metastatic) to help researchers understand factors linked to survival. Joining may help build better knowledge for future treatments and care planning.
San Diego, CaliforniaAges 18 years+ - NCT05941520RecruitingPhase 2
Acolbifene vs low-dose tamoxifen to prevent breast cancer
This Phase 2 trial compares acolbifene and low-dose tamoxifen to see which better lowers breast cancer risk in premenopausal women at high risk. You would be followed with health visits, blood tests, and a breast tissue sampling procedure.
Duarte, CaliforniaAges 35 years+ - NCT05919108RecruitingPhase 2
Neratinib before surgery for HER2-mutated invasive lobular breast cancer
This Phase 2 trial tests neratinib given before surgery to treat stage I–III invasive lobular breast cancer that has a specific HER2 mutation and is hormone-receptor positive. It may help shrink the tumor and improve control of cancer before and after surgery.
Atlanta, GeorgiaAges 18 years+ - NCT05930483Recruiting
Remote weight loss program for Hispanic/Latina breast cancer survivors
This trial tests a community-style, online (remote) weight loss program for people who finished breast cancer treatment and are now trying to improve health and weight. It may help by supporting safer weight loss through diet/energy reduction and physical activity.
Seattle, WashingtonAges 18 years+ - NCT05906407Recruiting
Genetic-guided treatment planning for high-risk early breast cancer
This study uses tumor genetic testing to help plan more precise treatment for people with early high-risk breast cancer. You may be asked to give a recent tumor sample so researchers can match your cancer features with the best available options.
AugsburgAges 18–80 - NCT05898789Recruiting
Virtual rehab program for cancer survivors
This trial tests a virtual (online) rehabilitation and exercise program for people after breast, colorectal, head and neck, or certain blood cancers. It may help improve recovery and daily functioning by supporting safe activity and targeted rehab after treatment.
Toronto, OntarioAges 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+ - NCT05874492Recruiting
Spa therapy for radiation-related skin fibrosis after cancer
This trial tests whether a spa therapy program can improve “fibrosis,” or stiffened/scarred tissue and related skin problems, after radiotherapy for breast cancer or upper head/neck cancers. It aims to see if treatment can improve quality of life for people who still have moderate-to-worse symptoms months after radiation.
BordeauxAges 18 years+ - NCT05877859Recruiting
Testing pembrolizumab with chemo before breast cancer surgery
This trial studies whether adding pembrolizumab (an immunotherapy) to standard chemotherapy before surgery improves immune and clinical responses in people with early-stage triple-negative breast cancer. You may benefit by getting a potentially more effective treatment plan, while the study team closely monitors your response.
Atlanta, GeorgiaAges 18 years+ - NCT00353483Recruiting
Testing treatment before or after breast cancer surgery
This trial studies how different cancer treatments given before or after standard therapy affect breast cancer cells in the blood and bone marrow. It may help doctors better understand how treatments work throughout the body, not just where the tumor is.
St Louis, MissouriAges 18 years+ - NCT05812807RecruitingPhase 3
Pembrolizumab versus monitoring after triple-negative breast cancer response
This trial checks whether giving pembrolizumab (an immunotherapy) after surgery helps people with triple-negative breast cancer reduce the chance of the cancer coming back, compared with close monitoring only. It’s for patients who had no remaining invasive cancer after neoadjuvant chemotherapy plus pembrolizumab.
Birmingham, AlabamaAges 18 years+ - NCT05837767Recruiting
Radiation study for tumors that spread to soft tissue areas
This study looks at how a planned form of palliative radiation therapy treats certain solid cancers that have spread outside the brain to larger soft-tissue areas. It may help shrink tumors and relieve symptoms, but it also asks you to meet specific safety and treatment-timing rules.
Basking Ridge, New JerseyAges 18 years+ - NCT05837455RecruitingPhase 2
Biomarker-guided treatment for early breast cancer before surgery
This trial looks at whether using tumor test results (biomarkers) can help guide the best hormone treatment and chemotherapy before surgery. It focuses on people with stage II or III, ER-positive, HER2-negative breast cancer, with the goal of improving how well the tumor responds before it is removed.
St Louis, MissouriAges 18 years+ - NCT05786664Recruiting
Breast cancer survivor study collecting your health samples
This study invites women who finished treatment for non-metastatic invasive breast cancer to share health information and biological samples for future research. It may help scientists understand survivorship and improve care after treatment.
Los Angeles, CaliforniaAges 18 years+ - NCT05795101RecruitingPhase 2
TRUDI trial for inflammatory breast cancer with HER2/low markers
This Phase 2 trial tests two medicines—durvalumab and trastuzumab deruxtecan—to treat stage III inflammatory breast cancer. It may help by controlling cancer growth using treatments aimed at specific breast cancer markers (HER2 positive or “HER2-low”).
Boston, MassachusettsAges 18 years+ - NCT05780814Recruiting
Treating insomnia to improve weight loss after breast cancer
This study looks at whether improving insomnia (trouble falling asleep or staying asleep) can help survivors of breast cancer lose weight more successfully through a structured behavioral weight loss program. It may help if sleep problems are making it harder to change eating and activity habits.
Washington D.C., District of ColumbiaAges 18 years+ - NCT05774951RecruitingPhase 3
Camizestrant for hormone-positive, HER2-negative early breast cancer
This trial tests camizestrant, a medicine that blocks estrogen signaling, to help prevent hormone-positive, HER2-negative early breast cancer from coming back. You may be eligible if your cancer has higher- or intermediate-risk features and you already completed at least 2 years of hormone therapy.
Birmingham, AlabamaAges 18–130 - NCT05753618RecruitingPhase 4
Skipping growth-factor shots during breast cancer chemotherapy
This trial tests whether patients can safely skip a preventive white-blood-cell growth shot (G-CSF) while receiving a common breast cancer chemotherapy regimen. It may help reduce injections and side effects, while watching closely for fevers and low white blood counts.
Kingston, OntarioAges 18 years+ - NCT05746325Recruiting
Tumor-pulse device for spinal cancer fluid spread
This trial tests whether Tumor Treating Fields (a non-surgical device that delivers treatment signals to cancer cells through the scalp/skin) can help people whose breast or lung cancer has spread into the fluid around the spine and brain. It focuses on people who have cancer cells found in spinal fluid and can safely use the device most of the day.
Jacksonville, FloridaAges 18 years+ - NCT05736367Recruiting
Study tumor metabolism in certain types of breast cancer surgery
This study looks at how breast cancer cells use energy and nutrients in hormone-receptor positive, HER2-negative tumors during planned surgery. It may help researchers understand the cancer better by comparing tumor tissue with nearby normal tissue.
New Brunswick, New JerseyAges 18 years+ - NCT05741164RecruitingPhase 2
Propranolol plus pembrolizumab for hard-to-treat breast cancer
This Phase 2 trial studies whether adding propranolol to pembrolizumab can “re-sensitize” tumors and slow cancer in triple-negative breast cancer that no longer responds to checkpoint immunotherapy. It may help some people whose cancer has grown despite prior pembrolizumab and chemotherapy.
Atlanta, GeorgiaAges 18 years+ - NCT05677802Recruiting
Stress-reduction program for newly diagnosed triple-negative breast cancer
This study tests whether a structured stress-reduction program can help people with newly diagnosed triple-negative breast cancer (stages I–III). The goal is to see if the program is practical and beneficial for patients during treatment.
Cleveland, OhioAges 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.