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
- NCT04293796Recruiting
Skipping breast surgery after complete response
This trial looks at whether some people with breast cancer can safely avoid breast surgery after they respond completely to treatment before surgery. If you have no remaining cancer in the tissue and lymph node tests, this study checks whether the “watch-and-wait” approach is feasible and safe.
Saint PetersburgAges 18–70 - NCT07309952RecruitingPhase 2
Chemo, immunotherapy and targeted radiation before surgery for advanced lung cancer
This trial tests a new approach for people with certain advanced non-small cell lung cancer (NSCLC) that has spread to lymph nodes in the chest but might still be removed. It combines a short course of high-precision radiation, immunotherapy (sintilimab), and standard chemotherapy before surgery to see if it can improve outcomes.
Guangzhou, GuangdongAges 18–75 - NCT05263570Recruiting
Real-world treatment planning for stage II–III HR+ HER2+ breast cancer
This trial looks at how well a standard “neoadjuvant” treatment plan works in real-world patients. It is for people newly diagnosed with stage II–III HR+ breast cancer and aims to see whether treatment gives expected outcomes in everyday care.
Shenyang, LiaoningAges 18 years+ - NCT05721976Recruiting
Grandmother–daughter lifestyle program for certain cancer survivors
This pilot study tests a supportive program for grandmothers who finished breast, endometrial, or ovarian cancer treatment and their adult daughters. It aims to encourage healthier habits, including physical activity, using phone-based support and Spanish/English materials.
Miami, FloridaAges 21 years+ - NCT05935384Recruiting
Blood tests to track response to cancer therapy
This study follows how cancer responds to standard (usual) treatment by using blood samples and de-identified health data. It may help researchers understand whether “liquid biopsy” blood testing can reflect how well therapy is working.
Skokie, IllinoisAges 18 years+ - NCT07532434Recruiting
Risk-Reducing Surgery for Hereditary Ovarian Cancer
This study follows women who carry gene mutations that increase ovarian cancer risk to understand how preventive surgery affects their health, quality of life, and peace of mind. Researchers will track your outcomes over 3 years to help inform future treatment decisions for others at similar risk.
Beijing, Beijing MunicipalityAges 18 years+ - NCT03815890RecruitingPhase 2
Pre-surgery nivolumab for certain types of breast cancer
This trial tests whether giving nivolumab before surgery (neoadjuvant treatment) can improve outcomes for people with certain resectable breast cancers. It focuses on tumor types linked to immune activity (like triple-negative and specific lab markers).
AmsterdamAges 18 years+ - NCT07330544RecruitingPhase 2
Study of entinostat with anlotinib or fulvestrant for advanced breast cancer
This trial tests adding entinostat (a drug that may help hormone therapy work better) to anlotinib or fulvestrant for people with HR-positive, HER2-negative advanced breast cancer that has worsened after prior hormone therapy and a CDK4/6 inhibitor. It aims to find a new treatment option for those who cannot use chemotherapy yet.
Zhejiang, HangzhouAges 18 years+ - NCT06127979Recruiting
Hormone therapy before surgery for breast cancer
This study looks at how a hormone-blocking medicine (endocrine therapy) given before surgery affects a marker called Ki67 in your breast cancer cells. The goal is to see if the medicine can slow the growth of the cancer, which may help doctors choose the best treatment for you.
New York, New YorkAges 18 years+ - NCT06555588Recruiting
Supportive talk therapy for advanced cancer symptoms
This study tests a supportive talk therapy program (called Engage) delivered via video calls. It aims to help people with advanced cancer manage tough symptoms like pain, fatigue, and distress and improve daily functioning.
Durham, North CarolinaAges 18 years+ - NCT07061964RecruitingPhase 2
Immunotherapy and radiation to save the bladder
This trial tests whether combining immunotherapy and low-dose radiation after chemotherapy can help you avoid bladder removal. It's for people whose muscle-invasive bladder cancer has shrunk significantly after initial treatment.
Birmingham, AlabamaAges 18 years+ - NCT05487846Recruiting
Peer support during genetic testing for metastatic prostate cancer
This trial offers support from a trained peer to help African American men understand and go through genetic testing for prostate cancer. It may help you feel less overwhelmed and better prepared during the testing and decision-making process.
Philadelphia, PennsylvaniaAges 18 years+ - NCT04109079Recruiting
Best surgery plan for breast cancer lymph nodes after chemotherapy
This study looks at the safest and most useful way to remove and check breast-cancer lymph nodes in the armpit after you finish chemotherapy given before surgery. It may help you avoid unnecessary surgery while still getting accurate information about how well the treatment worked.
DublinAges 18 years+ - NCT07546695Recruiting
Axillary lymph node surgery choices for HER2+ and triple-negative breast cancer
This study examines the best surgical approach for removing underarm lymph nodes in patients with HER2-positive or triple-negative breast cancer who have received chemotherapy before surgery and still have cancer in their lymph nodes. The goal is to understand whether removing more lymph nodes improves outcomes for these patients.
BaselAges Any age - NCT06908668RecruitingPhase 2
Adebrelimab plus chemo with or without radiation before breast cancer surgery
This trial tests adding a drug called adebrelimab to standard chemotherapy and possibly radiation, given before surgery for breast cancer that is HER2-negative and locally advanced. The goal is to see if this combination helps shrink tumors more effectively, potentially allowing for breast-conserving surgery.
BeijingAges 18–70 - NCT05570825RecruitingPhase 2
Study drug SX-682 with pembrolizumab for advanced lung cancer
This trial tests SX-682 plus pembrolizumab (an immunotherapy) to treat metastatic or recurrent non-small cell lung cancer (NSCLC). It aims to see how well the combination works and whether it can shrink or control the cancer in people whose tumors have enough PD-L1.
Seattle, WashingtonAges 18 years+ - NCT06709872Recruiting
Study to tell borderline from early ovarian cancer
This study uses ultrasound and blood tests to help doctors tell the difference between a borderline ovarian tumor and an early-stage invasive ovarian cancer. If you have a cyst found on your ovary that might be one of these types, joining could help improve diagnosis.
Leuven, Flemish BrabantAges 18 years+ - NCT04687956Recruiting
Preventing arm swelling after breast cancer lymph node surgery
This study looks at ways to prevent arm swelling (lymphedema) related to breast cancer after surgery to remove lymph nodes. It may help people who are getting axillary lymph node dissection lower the chance of long-term swelling.
SeoulAges 19 years+ - NCT04750122RecruitingPhase 1/Phase 2
Drug-screening guided treatment before surgery for HER2 breast cancer
This trial tests a treatment plan that is chosen using drug-testing in a lab (to see which medicines may work best) before surgery. It is for people with early-stage HER2-positive breast cancer, aiming to improve outcomes by guiding the right treatment early.
Beijing, Beijing MunicipalityAges 18–75 - NCT05420779RecruitingPhase 2
TSL-1502 for breast cancer with BRCA gene mutations
This Phase 2 trial tests TSL-1502 capsules, a targeted medicine for breast cancer, in people whose blood test shows a harmful BRCA gene mutation. It aims to see whether it can control the cancer and how safe it is after prior treatment.
BeijingAges 18–75 - NCT06454864Recruiting
Exercise and Diet for Breast Cancer Survivors
This study tests whether a 6-month program combining weekly supervised exercise and dietary advice can improve health in breast cancer survivors who have completed initial treatments. It aims to help with weight, heart health, and overall well-being.
Toronto, OntarioAges Any age - NCT06856200Recruiting
Sirolimus plus palbociclib and fulvestrant for advanced breast cancer
This trial tests a new combination of three drugs (sirolimus, palbociclib, and fulvestrant) for people with a certain type of advanced breast cancer that is hormone receptor-positive and HER2-negative. The goal is to see if adding sirolimus can help control the cancer when standard hormone therapy is no longer working.
ShanghaiAges 18 years+ - NCT05575804RecruitingPhase 1/Phase 2
GQ1001 plus pyrotinib for HER2-positive metastatic breast cancer
This trial tests a combination of two targeted drugs, GQ1001 and pyrotinib, for people with HER2-positive breast cancer that has spread to other parts of the body and has not responded to at least one prior treatment. The goal is to see if this combination can shrink tumors or slow cancer growth.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT06555068RecruitingPhase 1/Phase 2
Study of HRS-6209 combinations for advanced breast cancer
This trial tests a new drug, HRS-6209, combined with different hormone treatments (fulvestrant, letrozole, HRS-8080, or HRS-1358) for people with advanced breast cancer that has spread or cannot be surgically removed and has worsened after previous treatments.
Shanghai, Shanghai MunicipalityAges 18–75
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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.