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
- NCT05728268RecruitingPhase 2
Test dose-dense chemo before surgery for high-growth hormone-positive breast cancer
This Phase 2 study tests a faster, more frequent chemotherapy schedule given before surgery (neoadjuvant therapy) for certain breast cancers that grow quickly. It may help shrink the tumor before the operation and improve treatment response in people who fit the tumor and health criteria.
Shantou, GuangdongAges 18–70 - NCT05916755Recruiting
Testing tumor clues that predict response to immunotherapy
This study looks for “biomarkers,” or tumor clues, that may help predict who benefits from checkpoint inhibitor immunotherapy in triple-negative breast cancer. It may help doctors choose the right treatment approach in the future, especially when chemotherapy is planned.
BarcelonaAges 18 years+ - NCT06254690RecruitingPhase 2
Pyrotinib dosing study for HER2-positive advanced breast cancer
This trial tests different doses of pyrotinib, a targeted therapy, for women with HER2-positive advanced breast cancer that has not yet been treated for recurrence. It aims to find the best dosing regimen to control the cancer.
Nanjing, JiangsuAges 18–70 - NCT06492616RecruitingPhase 3
Elacestrant vs standard hormone therapy for high-risk early breast cancer
This trial tests a new hormone therapy pill (elacestrant) against standard hormone therapy for people with a common type of early breast cancer (ER+, HER2-) that has a higher chance of returning. You may qualify if you've already been on hormone therapy for 2 to 5 years and want to see if a different pill works better.
Daphne, AlabamaAges 18 years+ - NCT06679036RecruitingPhase 1/Phase 2
Combination therapy for advanced breast cancer
This trial tests new drug combinations for advanced or metastatic breast cancer. It aims to see if adding HRS-2189, HRS-6209, or HRS-1358 to standard treatments works better. Participants must have tried certain hormone therapies or chemotherapies before.
Harbin, HeilongjiangAges 18–75 - NCT06737926Recruiting
Balance exercises for chemotherapy nerve damage in breast cancer
This study tests whether special balance and coordination exercises can help reduce nerve damage side effects (like numbness or tingling) caused by chemotherapy in breast cancer patients. You may benefit if you have these symptoms and want to improve your balance and movement.
Lahore, Punjab ProvinceAges 30–65 - NCT06770296RecruitingPhase 1
Finding the best dose of pyrotinib for first-line advanced HER2 breast cancer
This study tests a new way to give pyrotinib, a targeted pill for HER2-positive breast cancer, to people whose cancer has spread or come back and who have not had other treatments for this stage. The goal is to find the best dose to control cancer while managing side effects.
Nanjing, JiangsuAges 18–75 - NCT06874933RecruitingPhase 2
Chemo plus anlotinib and benmelstobart for HR+/HER2- breast cancer
This trial tests adding anlotinib (a targeted therapy) and benmelstobart (an immunotherapy) to standard chemotherapy before surgery for a specific type of breast cancer. It may help shrink tumors and improve outcomes for patients whose tumors have certain markers.
Hangzhou, ZhejiangAges 18–75 - NCT06894173Recruiting
Early breast cancer treatment evolution study
This study looks back at treatments given to people with triple-negative or HER2-positive early breast cancer between 2016 and 2021. It aims to understand how treatment approaches have changed over time.
Aviano, PNAges 18 years+ - NCT07140172Recruiting
Radiation or surgery for node-positive breast cancer
This trial compares two treatments for people with breast cancer that has spread to the lymph nodes: radiation therapy to the armpit or surgery to remove the lymph nodes. The goal is to see which approach works best after a tailored surgery to remove the most suspicious lymph nodes.
Bethesda, MarylandAges 18 years+ - NCT06510127Enrolling by invitation
AI Predicts Chemo Effectiveness Before Breast Surgery
This study uses an AI model to predict how well chemotherapy will work before breast cancer surgery. It looks back at medical records and images from women who have already completed treatment to see if the AI can help guide future care.
Guangzhou, GuangdongAges Any age - NCT03451383Recruiting
Study brain changes in older breast cancer patients
This study follows older women with newly diagnosed breast cancer to see who might develop thinking or memory problems over time. It may help researchers understand early brain risk and how treatment and other factors relate to cognitive decline.
Washington D.C., District of ColumbiaAges 60–105 - NCT06906237Recruiting
Breast reconstruction study for early-stage breast cancer
This study looks at how well special breast-conserving surgery techniques work for women with early-stage breast cancer. It aims to see if these techniques provide good results and satisfaction over time.
PadovaAges 18 years+ - NCT06480513Recruiting
Yoga for joint pain from hormone therapy in breast cancer
This trial tests whether a yoga program can help reduce joint and muscle pain caused by hormone therapy (like tamoxifen or aromatase inhibitors) in people with breast cancer. You must have finished your main treatments at least 12 weeks ago and have had pain for more than 3 months.
UtrechtAges Any age - NCT03017573Recruiting
Cancer biobank study linking tumor, immune system, and environment
This study collects tumor and related samples from people with certain newly diagnosed cancers. Researchers use these samples to better understand how cancer cells, the surrounding tissue, and the immune system interact, which may guide better future treatments.
BordeauxAges 18 years+ - NCT04790253Recruiting
Check brain radiation timing or frequent MRI scans for SCLC
This study compares two ways to follow and treat small-cell lung cancer in the brain: preventive brain radiation versus close monitoring with MRI scans and treatment only if needed. It may help people avoid unnecessary brain treatment or choose the safer timing strategy.
GrazAges 18 years+ - NCT07123649RecruitingPhase 2
Customizing mammogram schedules for older breast cancer survivors
This study looks at how often older breast cancer survivors (80+) should get mammograms. It aims to make screening more personalized so women get the right amount of imaging.
Boston, MassachusettsAges 80 years+ - NCT06516289RecruitingPhase 2
Neoadjuvant treatment for BRCA-mutated HER2-negative breast cancer
This trial tests a combination of two oral medications (HRS-1167 and famitinib) with or without an immunotherapy drug (camrelizumab) before surgery for women with a BRCA gene mutation and HER2-negative breast cancer. It aims to see if these drugs can shrink tumors before surgery.
Shanghai, Shanghai MunicipalityAges 18–70 - NCT06185205RecruitingPhase 2
Accelerated high-dose radiation for early breast cancer
This trial tests a very short, high-dose radiation treatment given directly to the breast after lumpectomy. It aims to make radiation more convenient by finishing in just a few days instead of weeks, possibly with fewer side effects.
Richmond, VirginiaAges 45–79 - NCT04923542RecruitingPhase 1/Phase 2
Targeted drug plus focused brain radiation for breast cancer
This study tests whether abemaciclib (a targeted pill) given with focused radiation to brain tumors can control hormone receptor–positive, HER2-negative breast cancer in the brain. It’s designed to see if the combination helps shrink or slow the growth of brain metastases while keeping side effects manageable.
Tampa, FloridaAges 18 years+ - NCT06432036RecruitingPhase 1/Phase 2
Y90 Radioembolization for Early Kidney Cancer
This trial tests a treatment called Y90 radioembolization for people with early-stage kidney cancer who cannot have surgery or ablation. Tiny radioactive beads are delivered through a catheter to the tumor's blood supply to destroy it from the inside.
Los Angeles, CaliforniaAges 18 years+ - NCT05890287Recruiting
Chidamide plus hormone therapy after chemotherapy for breast cancer
This trial studies chidamide added to standard hormone (endocrine) therapy to help prevent breast cancer from coming back after initial chemotherapy. It may help by keeping cancer under control for longer in people with HR-positive, HER2-negative breast cancer who respond to first-line treatment.
TianjinAges 18–75 - NCT06240195Recruiting
Study of sacituzumab govitecan for advanced triple-negative breast cancer
This study is testing a drug called sacituzumab govitecan (SG) for people with advanced triple-negative breast cancer who have already had other treatments. The goal is to see how well the drug works and what side effects it causes, using your tumor samples to look for clues (biomarkers).
Rome, RomeAges 18 years+ - NCT07214532Recruiting
Guiding CDK4/6 inhibitor use by a blood test in breast cancer
This trial is for women and men with early-stage, hormone-positive, HER2-negative breast cancer. It uses a blood test (Signatera) to detect tiny amounts of cancer DNA and only starts a CDK4/6 inhibitor (ribociclib or abemaciclib) if the test shows cancer DNA is present.
Birmingham, AlabamaAges 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.