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
- NCT07371585RecruitingPhase 2
Trastuzumab Deruxtecan for first-line HER2-positive advanced breast cancer
This trial tests a targeted therapy called Trastuzumab Deruxtecan (T-DXd) for people with HER2-positive breast cancer that has spread or cannot be removed. It is for those who have not yet received any chemotherapy or HER2-targeted treatment for metastatic disease. The study also focuses on managing side effects early, using digital tools to track symptoms.
VillejuifAges 18 years+ - NCT07373782RecruitingPhase 2/Phase 3
CPAP mask during radiation for breast cancer
This trial tests whether using a CPAP mask during daily radiation treatments for breast cancer can help protect your heart. It is for women who had a lumpectomy and need radiation to the left breast or to the right breast with lymph nodes.
LeuvenAges 40–80 - NCT07372261Enrolling by invitation
Predicting breast cancer spread risk
This study tests a method to predict if early-stage breast cancer might spread to other parts of the body. It uses leftover tumor tissue to help doctors plan your treatment.
San Giovanni Rotondo, FGAges 18 years+ - NCT07365267Recruiting
3D printed mesh for breast reconstruction after mastectomy
This trial tests a new 3D printed biodegradable mesh used during breast reconstruction right after a mastectomy for breast cancer. It aims to see how well the mesh works for cosmetic results and safety.
Xi'an, ShaanxiAges 18–70 - NCT07366112RecruitingPhase 2
CDK4/6 inhibitor plus hormone therapy before breast cancer surgery
This trial tests a combination of a CDK4/6 inhibitor (a type of targeted therapy) with hormone therapy given before surgery for early-stage breast cancer that is hormone receptor-positive and HER2-negative. It aims to see if this approach can shrink tumors and improve outcomes.
Beijing, Beijing MunicipalityAges 18–75 - NCT05020860RecruitingPhase 2
Study how early breast cancer responds on imaging and under a microscope
This Phase 2 study looks at how well early breast cancer shrinks with treatment and how that matches with what doctors find after surgery under the microscope. The goal is to learn better ways to predict and assess treatment success.
Houston, TexasAges 18 years+ - NCT07354165Recruiting
Financial burden in early breast cancer patients
This study looks at the financial challenges people with early-stage breast cancer face during treatment. Researchers want to understand how costs affect patients so they can find ways to help.
NaplesAges Any age - NCT07357298RecruitingPhase 3
Brain MRI surveillance for stage IV breast cancer
This trial tests whether regular brain MRI scans can help detect brain metastases early in patients with stage IV breast cancer who do not yet have any known brain metastases. The goal is to see if early detection improves outcomes.
Miami, FloridaAges 18 years+ - NCT07349069RecruitingPhase 3
HRS-8080 vs. standard hormone therapy for early breast cancer
This trial tests a new oral drug (HRS-8080) against standard hormone therapy for women with intermediate- or high-risk early breast cancer who have already completed 2 to 5 years of hormone treatment. It aims to see if the new drug can reduce the risk of cancer coming back.
Nanjing, JiangsuAges 18–75 - NCT07341503Recruiting
Sleep after breast cancer study
This study looks at how sleep changes during breast cancer treatment and how those changes relate to certain markers in the body. It aims to help improve sleep and overall health for people with hormone receptor positive breast cancer.
Columbus, OhioAges 18 years+ - NCT07327021RecruitingPhase 2
MRI-Guided treatment reduction for stage 2-3 triple-negative breast cancer
This trial tests if using MRI scans can safely reduce the amount of chemotherapy and immunotherapy needed before surgery for triple-negative breast cancer. All patients will receive the standard KEYNOTE-522 regimen, but the treatment may be tailored based on MRI results.
Tel AvivAges 18 years+ - NCT07331506Recruiting
Early detection of breast cancer with a blood test
This trial tests a new blood test called Oncoliq to see if it can find breast cancer early. It compares results from people with breast cancer and people without cancer.
Buenos Aires, Buenos AiresAges 40–70 - NCT07327970Recruiting
AI test to predict breast cancer treatment response
This study tests whether an AI tool can predict how well breast cancer responds to chemotherapy given before surgery. Your tumor sample from a needle biopsy will be analyzed to see if the AI's prediction matches your actual treatment outcome.
IncheonAges 18 years+ - NCT06035679Recruiting
Combination therapy before surgery for HER2-positive breast cancer
This trial tests a combination of targeted therapies and chemotherapy given before surgery for HER2-positive breast cancer. It aims to see if this approach helps shrink tumors and improve outcomes.
Fuzhou, FujianAges 18–75 - NCT07310420RecruitingPhase 1
Evaluating ovarian suppression with ZOLADEX in premenopausal breast cancer
This trial tests a medication (ZOLADEX) to suppress ovarian function in premenopausal women with hormone receptor-positive breast cancer, either early-stage or advanced. The goal is to see how well it works and how safe it is.
Hot Springs, ArkansasAges 18–55 - NCT07314073RecruitingPhase 2
A PET scan to find hidden spread in slow-growing breast cancer
This trial is testing a special PET scan (18F-FES PET/CT) to see if it can find distant cancer spread in women with a slow-growing, estrogen receptor-positive, stage III breast cancer. The goal is to find out whether this imaging test can detect hidden metastases better than standard scans.
SeoulAges 19 years+ - NCT07312786Recruiting
Virtual app for breast and colorectal cancer survivors
This study tests if a virtual app can help people who have finished treatment for breast or colorectal cancer feel supported and stay healthy. It looks at whether using the app is easy and helpful for cancer survivors.
Saint John, New BrunswickAges 18 years+ - NCT07304934Recruiting
New blood test model to check lymph node status in breast cancer
This study uses a blood test and imaging to predict whether breast cancer has spread to underarm lymph nodes, helping guide surgery. It may reduce unnecessary lymph node removal.
Hangzhou, ZhejiangAges 18 years+ - NCT07281833RecruitingPhase 3
Testing capivasertib with hormone therapy for advanced breast cancer
This trial tests a new oral drug called capivasertib combined with standard hormone therapy for people with advanced breast cancer that is HR-positive and HER2-negative. It is for those whose cancer has progressed on previous hormone therapy and who have a specific gene change (PIK3CA, AKT1, or PTEN).
AnderlechtAges 18 years+ - NCT05460780Recruiting
Tissue device study for breast reconstruction after mastectomy
This first-time-in-humans study tests a tissue-engineering chamber called MATTISSE® to help the healing of breast reconstruction using specific tissue flaps after mastectomy for cancer. If you qualify, you would be assessed for safety and how well the reconstructed tissue heals.
Strasbourg, FranceAges 18 years+ - NCT05485766RecruitingPhase 2
Pembrolizumab with cancer medicines for BRCA-mutated triple negative breast cancer
This Phase 2 trial studies a treatment plan given before surgery (neoadjuvant) and after surgery (adjuvant) for people with BRCA1/2-mutated triple negative breast cancer that has not spread. It aims to improve how well the cancer responds and how long people stay cancer-free.
Gifu, GifuAges 18 years+ - NCT05332561RecruitingPhase 2
Personalized treatment after surgery for early breast cancer
This Phase 2 study checks whether adding a personalized (biomarker-matched) medicine after standard chemotherapy and surgery lowers the risk of breast cancer coming back. Your study drug choice depends on tumor test results (from your tumor’s genetics and immune markers).
Heidelberg, Baden-WurttembergAges 18 years+ - NCT07273357Recruiting
CDK4/6 inhibitors for older breast cancer patients
This study looks at how well older breast cancer patients (70 years and older) do when treated with a type of drug called a CDK4/6 inhibitor along with hormone therapy after surgery. The goal is to use simple health checks to help doctors decide if this treatment is right for you.
GävleAges 70 years+ - NCT07273812Recruiting
AI phone app to help with chemotherapy side effects in breast cancer
This trial tests a mobile app that uses artificial intelligence to help women with early-stage breast cancer manage symptoms during their first chemotherapy. The app is in Arabic and is designed to make it easier to report how you're feeling and get support.
BaghdadAges 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.