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
- NCT06650423Recruiting
Staying on hormone therapy for early breast cancer
This study looks at how well patients take their hormone-lowering pills (aromatase inhibitors, with or without abemaciclib) for early-stage breast cancer. It aims to understand adherence patterns and help improve support for patients.
LjubljanaAges 18–99 - NCT06650748Enrolling by invitationPhase 2
A study of hormone therapy with or without a targeted drug for breast cancer
This trial tests if adding a targeted drug (CDK4/6 inhibitor) to hormone therapy works better than hormone therapy alone for women with a certain type of breast cancer (HR+/HER2-). The study measures the activity of tumor cells (Ki-67) to help decide treatment.
BeijingAges 18–70 - NCT06637150RecruitingPhase 3
Dalpiciclib with hormone therapy for early breast cancer
This trial tests whether adding the drug dalpiciclib to standard hormone therapy improves outcomes for people with a certain type of early breast cancer (hormone receptor-positive, HER2-negative). It may help lower the risk of the cancer coming back.
ShanghaiAges 18–70 - NCT06637306RecruitingEarly Phase 1
Testing dupilumab with chemo for advanced triple-negative breast cancer
This trial adds dupilumab (a targeted immune treatment) to standard chemotherapy before surgery for patients with advanced triple-negative breast cancer. The goal is to see if this combination helps shrink tumors more effectively.
New York, New YorkAges 18 years+ - NCT06635980RecruitingPhase 2
Radiation before or after breast cancer surgery
This trial compares two ways of giving radiation for breast cancer that has not spread: before or after surgery. It aims to see if giving radiation first might work as well or better.
Scottsdale, ArizonaAges 18 years+ - NCT06601621Recruiting
Acupuncture and self-massage for quality of life during breast cancer chemo
This trial tests whether combining electroacupuncture with self-acupressure can improve quality of life for people with early-stage breast cancer during chemotherapy. The treatment is non-invasive and aims to reduce side effects.
Xining, QinghaiAges 18–75 - NCT06610565Recruiting
Fasting-mimicking diet for breast cancer side effects
This study tests if a special diet that mimics fasting can help reduce side effects from hormone therapy (aromatase inhibitors) in women with breast cancer. The diet is a low-calorie meal plan designed to lower cholesterol and improve well-being.
Milan, ItalyAges 18 years+ - NCT06616987RecruitingPhase 2
Preventing neutropenia from sacituzumab govitecan in TNBC
This trial tests whether a drug called sacituzumab govitecan can help prevent a low white blood cell count (neutropenia) in people with metastatic triple-negative breast cancer. It is for patients who have already received some chemotherapy but need a new treatment option.
SeoulAges 19 years+ - NCT06606730RecruitingPhase 3
Personalized pembrolizumab after strong chemo response for early triple-negative breast cancer
This trial is for people with early triple-negative breast cancer who had a strong response to chemotherapy combined with pembrolizumab before surgery. It aims to find the best way to continue using pembrolizumab after surgery to reduce the risk of cancer coming back.
BrusselsAges 18 years+ - NCT06568705RecruitingPhase 2
Shorter adaptive radiation for early breast cancer
This trial tests a shorter, more targeted course of daily radiation for early-stage breast cancer. The radiation plan is adjusted each day to better fit your body, which may reduce side effects.
BeijingAges 35–70 - NCT06582615Recruiting
MIND diet for better brain health during breast cancer treatment
This study tests whether a special diet (called the MIND diet) can help with thinking and memory in women being treated for triple negative breast cancer. Participants will receive nutrition coaching and support to see if it improves brain function.
New Haven, ConnecticutAges 40–65 - NCT05900206RecruitingPhase 2
Trastuzumab deruxtecan vs standard chemotherapy before breast surgery
This Phase 2 study compares trastuzumab deruxtecan to standard chemotherapy given before surgery for HER2-positive breast cancer. It aims to see which treatment works better to shrink the tumor and spread before the operation.
MalmöAges 18 years+ - NCT06545331RecruitingPhase 1
A study of XB010 for advanced solid tumors
This trial tests an investigational drug called XB010 for people with solid tumors that have spread or cannot be removed by surgery. It aims to see if XB010 is safe and effective for several cancer types, including lung, breast, head and neck, and esophageal cancers.
Irvine, CaliforniaAges 18 years+ - NCT06535893RecruitingPhase 2
Testing new treatments for early breast cancer
This trial tests new treatments for early breast cancer (stage II or III). It aims to find better therapies that can stop the cancer from coming back, and you may receive a promising new drug.
Nagoya, Aichi-kenAges 18–80 - NCT06536881Recruiting
Diet and gut health during breast cancer chemo
This study looks at how changing your diet during chemotherapy affects side effects and your body's energy use. It involves providing stool samples to study gut bacteria.
Washington D.C., District of ColumbiaAges 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+ - NCT06532279RecruitingPhase 2
Testing BMX-001 with chemoradiation for head and neck cancer
This trial tests whether adding BMX-001 (a drug that may protect healthy tissues) to standard chemoradiation can reduce side effects and improve outcomes for people with head and neck cancer. It's a randomized study, so you would have a 50/50 chance of getting BMX-001 or a placebo.
Gilbert, ArizonaAges 18 years+ - NCT06518837RecruitingPhase 2
Tirzepatide for weight loss in early breast cancer
This study tests if tirzepatide (a weight loss drug) can help women and men with early-stage hormone receptor-positive breast cancer who are overweight or obese. The goal is to see if losing weight can improve outcomes after completing their initial breast cancer treatment.
Elizabeth, New JerseyAges 18 years+ - NCT06525766RecruitingPhase 2
Adaptive capecitabine therapy for metastatic ER+ HER2− breast cancer
This trial tests whether adjusting the dose of the oral chemotherapy capecitabine over time can control metastatic breast cancer that is estrogen-receptor positive (ER+) and HER2−. It is designed for patients who are starting capecitabine or have just started it, and the study will monitor blood changes and tumor response closely.
Scottsdale, ArizonaAges 18 years+ - NCT06531135Enrolling by invitation
Counseling to help you adjust to breast cancer
This trial tests a counseling program to help people with breast cancer feel more positive and cope better. It's designed for newly diagnosed patients who can read and write Chinese.
TaipeiAges 20–70 - NCT06518057RecruitingPhase 2
Sparing memory during brain radiation for leptomeningeal metastases
This trial tests a special type of radiation that avoids the memory center of the brain (the hippocampus) while treating cancer that has spread to the lining of the brain and spinal cord. It may help reduce side effects on thinking and memory for people with breast or lung cancer.
San Francisco, CaliforniaAges 18 years+ - NCT05957068Recruiting
Exercise program for breast cancer after surgery
This study tests an exercise intervention for people with early-to-mid stage breast cancer soon after curative breast surgery (and after chemo and/or radiation if you had it). It may help improve recovery, physical strength, and overall wellbeing by making exercise safer and more structured during this period.
SingaporeAges 21–99 - NCT06498635RecruitingPhase 3
Immunotherapy after surgery for lung cancer with no remaining cancer
This trial tests whether giving immunotherapy (durvalumab) after surgery can help prevent lung cancer from coming back if you already had a complete response to chemo and immunotherapy before surgery. It is for people with early-stage non-small cell lung cancer who had no cancer left after treatment.
Jonesboro, ArkansasAges 18 years+ - NCT06500481RecruitingPhase 3
Proton vs standard radiation for cancer spread to brain/spine lining
This trial compares a newer type of radiation (proton therapy) to standard radiation for people whose breast or lung cancer has spread to the lining of the brain and spinal cord. It aims to see if proton therapy can better control the disease while causing fewer side effects.
Phoenix, ArizonaAges 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.