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
- NCT06924788Enrolling by invitation
Stress management for breast cancer survivors via video
This study tests if stress management and relaxation training through video calls can help breast cancer survivors who live in under-resourced neighborhoods. It aims to improve emotional well-being and coping.
Birmingham, AlabamaAges 19 years+ - NCT06768268Enrolling by invitationPhase 1/Phase 2
Better lymph node imaging for breast cancer
This trial tests whether adding two common fluids (Mannitol and Voluven) before an ICG dye injection can help surgeons better see the lymph nodes that need to be removed during breast cancer surgery. It aims to make sentinel lymph node biopsies more accurate and safer.
Hsinchu CountyAges 20–70 - NCT06671691Enrolling by invitationPhase 1
Single-dose radiation for low-risk breast cancer
This trial tests a single, high-precision dose of radiation to the tumor instead of standard surgery or multiple radiation sessions. It is for women with a small, low-risk breast cancer who cannot or choose not to have surgery.
Palma, Balearic IslandsAges Any age - 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 - NCT04488614Enrolling by invitation
Biobank study for early-stage breast cancer samples
This study collects and stores biological samples (like tissue or blood) from people with early-stage breast cancer to help future research. It’s mainly for people with a specific type of early breast cancer called high-grade DCIS.
Stavanger, RogalandAges 18–85 - NCT03424005RecruitingPhase 1/Phase 2
Testing new drug combinations for advanced breast cancer
This study tests how well and how safely different combinations of cancer drugs work for people with metastatic or inoperable locally advanced breast cancer. It may help by finding a better treatment option and collecting information to guide future care.
Duarte, CaliforniaAges 18 years+ - NCT07427394RecruitingPhase 2
Camizestrant and atirmociclib for advanced breast cancer
This trial tests two experimental drugs—camizestrant and atirmociclib—for women with advanced ER-positive breast cancer that has worsened after prior treatment. The goal is to see if the combination is safe and tolerable.
St Louis, MissouriAges 18 years+ - NCT06478589RecruitingPhase 2
Survivorship care priorities for older breast cancer survivors
This study looks at what matters most to older breast cancer survivors who have finished treatment. It helps doctors design care plans that fit your personal priorities and health needs.
Bellaire, TexasAges 65–100 - NCT05256745RecruitingPhase 1/Phase 2
A medicine to protect the heart during breast cancer chemotherapy
This early-phase study tests azeliragon to lower the risk of chemotherapy-related heart damage in women with early-stage breast cancer. Participants get their planned standard chemotherapy, plus the study medicine, and are monitored for safety and heart health.
Washington D.C., District of ColumbiaAges 18 years+ - NCT04824014RecruitingPhase 2
PET imaging for ER+ advanced breast cancer
This trial uses a special PET scan called 4FMFES-PET to take detailed pictures of ER-positive breast cancer that has spread. It helps doctors see where the cancer is and how active it is, which may guide treatment decisions.
Sherbrooke, QuebecAges 18 years+ - NCT05982678RecruitingPhase 2
Study of a drug for breast cancer that has spread to a few spots
This trial tests a drug for people with HER2-positive breast cancer that has spread to only a few places in the body (up to 5 spots). It aims to see if the treatment works well before starting stronger therapies.
AmsterdamAges 18 years+ - NCT07216495Recruiting
Exercise study for early-stage triple-negative breast cancer patients
This study tests if aerobic exercise can help women and men with stage 2 or 3 triple-negative breast cancer who are getting chemotherapy and immunotherapy before surgery. It aims to see if exercise improves treatment outcomes and quality of life.
Houston, TexasAges 18 years+ - NCT05848141Recruiting
Rowing program after breast cancer treatment
This study looks at whether supervised rowing exercise after breast cancer treatment is safe and helpful for recovery and health. You may be able to join if you finished treatment within the last 6–24 months and have no major exercise-limiting heart or health problems.
Gainesville, FloridaAges 40–80 - NCT07310420RecruitingPhase 1
Zoladex injection for ovarian suppression in advanced breast cancer
This trial tests a single injection of Zoladex (goserelin) to see how well it suppresses ovarian function in premenopausal women with HR+, HER2- advanced breast cancer. It may be an option if you are still having periods and your cancer has spread or cannot be removed by surgery.
Hot Springs, ArkansasAges 18–55 - NCT05827081RecruitingPhase 3
Ribociclib plus endocrine therapy for early breast cancer
This trial studies whether adding ribociclib to standard hormone (endocrine) therapy lowers the risk of breast cancer coming back in early-stage, hormone-receptor–positive cancer. It mainly looks at safety and how well the treatment controls cancer after surgery and (sometimes) prior hormone treatment.
Birmingham, AlabamaAges 18–100 - NCT07706556Recruiting
Remote activity program for breast cancer survivors
This trial tests a new program to help breast cancer survivors become more active. The program is delivered remotely using a smartphone app, and it adjusts based on your progress. It may be a good fit if you finished treatment less than 5 years ago and are not very active yet.
Lebanon, New HampshireAges 18 years+ - NCT04333706RecruitingPhase 1/Phase 2
Sarilumab plus capecitabine for certain breast cancers
This trial studies whether adding sarilumab to capecitabine can shrink or control metastatic or high-risk breast cancer that lacks HER2 and is either triple-negative or hormone-resistant. It aims to find a safe dose first, then look at how well the treatment works compared with historical results.
Los Angeles, CaliforniaAges 18–99 - NCT04383275RecruitingPhase 2
De-escalation trial for early HER2+ breast cancer
This Phase 2 study tests whether people with early-stage HER2-positive breast cancer may be treated with less intensive therapy, without losing effectiveness. You may be considered if your tumor is small, lymph nodes are negative, and your hormone (ER/PR) status and HER2 test results match the study groups.
Shanghai, Shanghai MunicipalityAges 18–70 - NCT04472845Recruiting
Shorter or longer breast radiation after surgery for high-risk cancer
This trial compares two schedules of radiation after breast surgery in people with high-risk, node-positive breast cancer. The goal is to see whether giving radiation in 1 week or 2 weeks works well and is safe after standard treatments.
ChandigarhAges 18 years+ - NCT04843865Recruiting
Chinese herbal add-on for joint pain from letrozole
This trial studies whether Chinese herbs, used alongside letrozole, can reduce ongoing joint and muscle pain or stiffness in postmenopausal women with hormone-receptor positive breast cancer. It’s mainly for people whose pain started or worsened after beginning letrozole and who have completed cancer treatments.
Bukit Bintang, Kuala LumpurAges 18 years+ - NCT04914663Recruiting
Exercise program during breast cancer chemotherapy
This study tests whether supervised exercise during chemotherapy is safe and helpful for people with early-stage breast cancer. It may support physical function and well-being while you are receiving cancer treatment.
Gainesville, FloridaAges 18–85 - NCT05074290RecruitingPhase 1/Phase 2
Testing safety and drug levels of a breast cancer drug plus taxane
This early-phase study tests how epidiferphane works in the body and whether it is safe when combined with standard chemotherapy “taxanes” (paclitaxel or docetaxel) for breast cancer. If you qualify, you may be starting a new taxane treatment plan at the study site, and you would be followed closely for side effects and drug levels.
Gainesville, FloridaAges 18–99 - NCT05404321Recruiting
Collecting tumor samples to study triple-negative breast cancer treatments
This study collects tumor tissue from people with early-stage triple-negative breast cancer before they start neoadjuvant chemotherapy. The goal is to help researchers test new therapies and look for markers that may predict who benefits.
CaenAges 18 years+ - NCT05501704RecruitingPhase 2
Testosterone-blocking therapy for male breast cancer
This Phase 2 study tests an oral treatment (called “ET”) to treat hormone-receptor–positive, HER2-negative invasive breast cancer in men. It may help shrink or control cancer without using standard cancer treatments first.
Washington D.C., District of ColumbiaAges 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.