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 1,199 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06188520RecruitingPhase 1/Phase 2
Study of a new drug for advanced solid tumors in women
This trial tests a new drug, AZD8421, alone or with other treatments, for women with advanced solid tumors that have not responded to prior therapies. It aims to find a safe dose and see if it can help shrink or control the cancer.
St Louis, MissouriAges 18 years+ - NCT06081244RecruitingPhase 3
Testing sacituzumab govitecan with or without pembrolizumab for early triple-negative breast cancer
This trial tests a two-drug combination (sacituzumab govitecan and pembrolizumab) versus sacituzumab govitecan alone before surgery for low-risk, triple-negative breast cancer that hasn't spread. The goal is to see which approach works better at shrinking tumors.
Baden-Baden, Baden-WurttembergAges 18 years+ - NCT07287917RecruitingPhase 1/Phase 2
Testing a new drug combo for advanced breast cancer or melanoma
This trial tests a new combination of drugs (AMXT 1501, DFMO, and standard therapies) for people with advanced solid tumors, specifically breast cancer (ER+ HER2-) or melanoma that has progressed after other treatments. The goal is to see if this combination can help shrink tumors or slow their growth.
Tucson, ArizonaAges 18 years+ - NCT03784651Recruiting
How breast cancer treatment changes metabolism and bone
This study looks at how standard breast cancer treatments affect your body’s metabolism and bones in postmenopausal people with early-stage breast cancer. It may help doctors better predict and prevent bone and metabolic side effects from treatment.
Copenhagen, DanmarkAges 50–70 - NCT04824027Recruiting
Breast ultrasound testing during chemotherapy for breast cancer
This study looks at how breast tissue changes during chemotherapy given before surgery (neoadjuvant therapy). It may help doctors better understand treatment effects by taking special breast measurements.
New York, New YorkAges 18 years+ - NCT05416164Recruiting
Testes less radiation after a complete response to medicines
This study checks whether some people with breast cancer who have no remaining cancer after medicine (neoadjuvant systemic therapy) can safely receive less radiation. It may help reduce side effects while still keeping cancer controlled.
Amsterdam, North HollandAges 18 years+ - NCT06272864Recruiting
A study looking at genetics of certain advanced cancers
This study tests the genes of your cancer to learn more about advanced breast, lung, melanoma, or sarcoma tumors. It may help doctors find better ways to treat these cancers in the future.
Rogers, ArkansasAges 18 years+ - NCT06563999RecruitingPhase 2
Study of new drugs for stage III lung cancer with rare gene changes
This trial tests whether giving treatment before surgery (neoadjuvant therapy) can help people with stage III lung cancer that has certain rare gene changes. The goal is to see if this approach can shrink the tumor enough to allow surgery.
Guangzhou, GuangdongAges 18–75 - NCT06596018RecruitingPhase 1/Phase 2
Radiation therapy for breast cancer not responding to chemo
This trial tests whether adding a special type of radiation (SBRT) can help people whose breast cancer did not shrink after two rounds of standard chemotherapy. It's for people with stage II or III breast cancer that is still growing or stable.
Hangzhou, ZhejiangAges 18–75 - NCT07046455Recruiting
Trop-2 PET scan for advanced triple-negative breast cancer
This trial uses a special PET scan to find a protein called Trop-2 on your cancer cells. It helps doctors decide if a targeted treatment (Trop-2 ADC) might work for you.
BeijingAges 18–75 - NCT06674538Enrolling by invitationPhase 1
Antibody trial for advanced solid tumors
This trial tests an antibody treatment for people with stage IV cancer that has not responded to previous treatment. It aims to find a new option for patients with several types of advanced solid tumors.
Hershey, PennsylvaniaAges 18 years+ - NCT03375983RecruitingPhase 1/Phase 2
Immune treatment with malaria cells for advanced solid cancers
This early-phase study tests a “malaria-based” immune treatment to help the immune system fight advanced cancers. It’s designed for people whose cancer can be measured on scans and whose organs and blood counts are strong enough for immunotherapy.
Guangzhou, GuangdongAges 18–70 - NCT06769126RecruitingPhase 2
Personalized treatment study for extensive stage small cell lung cancer
This study uses biomarker tests on your tumor to find a personalized treatment after initial chemotherapy. You will be assigned to one of four treatment groups based on your biomarker results.
Loma Linda, CaliforniaAges 18 years+ - NCT04585490RecruitingPhase 3
Testing a personalized add-on treatment after stage III lung cancer
This phase 3 trial tests whether tailoring the next (add-on) treatments can improve outcomes after standard chemoradiation and immunotherapy for stage III, unresectable (not operable) non-small cell lung cancer. It specifically looks at giving durvalumab plus an additional drug (tremelimumab) and possibly other consolidation chemotherapy based on a personalized plan.
Stanford, CaliforniaAges 18 years+ - NCT05665920Recruiting
Shorter radiation after breast surgery for certain node-positive cancer
This trial compares a shorter, more concentrated radiation schedule versus a standard shorter schedule after breast-conserving surgery. It looks at whether the treatment works well and is safe, especially for women whose lymph nodes also need radiation.
São Paulo, São PauloAges 18 years+ - NCT05774678RecruitingPhase 3
Pre-surgery radiation options for invasive breast cancer
This trial compares two schedules of radiation given before mastectomy to see which works better for invasive breast cancer, followed by immediate breast reconstruction. It also studies tiny “biomarker” signals in tissue to learn why one radiation approach may help more.
Houston, TexasAges 18 years+ - NCT05885009Recruiting
Liquid biopsy test to guide treatment in metastatic prostate cancer
This study looks at using a simple blood test (liquid biopsy) to read tumor DNA and understand how it could affect treatment decisions. It is for adults with metastatic prostate cancer who are about to start, are receiving, or recently finished treatment.
BarcelonaAges 18 years+ - NCT03758976Recruiting
Study of scans in advanced breast cancer recurrence
This study looks at people with advanced breast cancer to better understand recurrence by using information from recent scans. It may help researchers improve how advanced disease is assessed and followed over time.
LundAges 18 years+ - NCT06114589Recruiting
Predicting radiation side effects in breast cancer
This study is looking for biomarkers (genetic clues) to predict how patients will react to radiation after breast-conserving surgery. It aims to create a model that can personalize treatment to reduce side effects.
Aviano, PordenoneAges 18 years+ - NCT05344209RecruitingPhase 2
Pembrolizumab plus or minus vaccine for advanced lung cancer
This Phase 2 trial studies pembrolizumab (an immune-boosting cancer medicine) alone or with an added investigational UV1 vaccine in people with advanced non-small cell lung cancer. It aims to see whether adding the vaccine improves safety and effectiveness, especially in tumors with high PD-L1 levels.
Drammen, AkershusAges 18 years+ - NCT06518135Recruiting
Sentinel node biopsy after chemo for initial node-positive breast cancer
This trial checks whether a less invasive sentinel lymph node biopsy (removing just a few nodes) can safely replace full lymph node removal for people whose breast cancer and underarm lymph nodes responded well to chemotherapy. It is for patients who initially had 1 to 3 involved nodes and now appear cancer-free in the armpit.
Henan, HenanAges 18–70 - NCT04476485Recruiting
Predicting breast cancer recurrence after extended hormone therapy
This trial looks at factors that may predict whether hormone receptor–positive breast cancer will come back after you’ve already completed 5 years of hormone (endocrine) therapy. It may help identify who benefits most from longer treatment and follow-up.
Harbin, HeilongjiangAges 18–70 - NCT06166953Recruiting
Smartphone education for breast reconstruction recovery
This study tests if a smartphone-based education program helps women who are recovering from breast reconstruction surgery after a mastectomy. If you are a Turkish speaker with a compatible smartphone, you may be able to join.
Ankara, ÇankayaAges 18–75 - NCT06992336RecruitingPhase 2
Circulating tumor DNA guided extra treatment for early triple-negative breast cancer
This trial tests whether using a blood test to detect leftover cancer DNA after initial treatment can help doctors decide if extra therapy is needed for people with early triple-negative breast cancer. It aims to improve outcomes for those with remaining disease after neoadjuvant therapy.
Guangzhou, GuangodngAges 18–70
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Common questions
- Are there clinical trials for breast cancer stage i?
- Yes. Clin2 currently lists 1,199 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.