Clinical trials · Missouri
Metastatic Breast Cancer clinical trials in Missouri
We’re tracking 97 recruiting metastatic breast cancer studies with a site in Missouri — including Phase 1, Phase 1/Phase 2, Phase 2 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies in Missouri
- NCT03418961RecruitingPhase 3
Study of heart-risk management for metastatic HER2 breast cancer
This trial follows people with metastatic HER2-positive breast cancer who are at higher risk for heart damage while on HER2-targeted therapy. Some participants are randomly assigned to different monitoring/heart-protection approaches to see what best helps keep the heart safe.
Kansas City, MissouriAges 18 years+ - NCT03452774Recruiting
AI matches your cancer tests to possible treatment trials
This trial uses an AI system to help match people with certain cancer types and specific tumor test results (like gene or protein markers) to relevant clinical trials. It may help you and your doctor find studies that fit your cancer biology faster.
St Louis, MissouriAges Any age - NCT03606967RecruitingPhase 2
Individualized vaccine added to standard treatment for metastatic triple-negative breast cancer
This Phase 2 trial tests whether adding a personalized cancer vaccine to durvalumab (an immunotherapy), tremelimumab (another immunotherapy), and chemotherapy can improve outcomes for people with metastatic triple-negative breast cancer. It may help your immune system recognize your specific tumor features.
City of Saint Peters, MissouriAges 18 years+ - NCT07137416RecruitingPhase 1
Testing a new combination of cancer drugs for HER2-positive tumors and breast cancer
This trial tests the safety of combining two drugs, CX-5461 (Pidnarulex) and Trastuzumab Deruxtecan (T-DXd), in people with HER2-positive solid tumors or certain types of breast cancer. If you have advanced cancer that hasn't responded to other treatments, this study may be an option.
St Louis, MissouriAges 18 years+ - NCT05216432RecruitingPhase 1
RLY-2608 for PIK3CA-mutant advanced solid tumors and breast cancer
This early study (Phase 1) tests RLY-2608, a targeted cancer drug for tumors with a PIK3CA mutation. It studies the drug alone and combined with hormone therapy (and sometimes CDK4/6 or CDK4 medicines) to see safety, dose, and whether it can shrink tumors.
St Louis, MissouriAges 18 years+ - NCT05505643Recruiting
Cryoablation versus lumpectomy for early breast cancer
This trial compares two ways to remove early-stage breast tumors: freezing (cryoablation) or surgery (lumpectomy). It may help find which option works as well or better for cancer control while keeping the breast looking more natural for some people.
St Louis, MissouriAges 50 years+ - NCT05508906RecruitingPhase 1
Test drug OP-1250 with other medicines in ER-positive breast cancer
This Phase 1b study tests OP-1250 (palazestrant) combined with other targeted medicines for ER-positive, HER2-negative advanced or metastatic breast cancer. It mainly looks at safety and correct dosing, but may also help shrink tumors or slow growth.
St Louis, MissouriAges 18 years+ - NCT05696626RecruitingPhase 3
Test a new pill plus abemaciclib versus standard therapy
This Phase 3 study compares lasofoxifene plus abemaciclib versus fulvestrant plus abemaciclib for ER-positive, HER2-negative breast cancer that has an ESR1 mutation. It looks for better tumor control in people whose cancer has progressed on hormone therapy (an aromatase inhibitor) and who meet specific safety and testing requirements.
Kansas City, MissouriAges 18 years+ - NCT05774951RecruitingPhase 3
Camizestrant for hormone-positive, HER2-negative early breast cancer
This trial tests camizestrant, a medicine that blocks estrogen signaling, to help prevent hormone-positive, HER2-negative early breast cancer from coming back. You may be eligible if your cancer has higher- or intermediate-risk features and you already completed at least 2 years of hormone therapy.
Independence, MissouriAges 18–130 - NCT05837455RecruitingPhase 2
Biomarker-guided treatment for early breast cancer before surgery
This trial looks at whether using tumor test results (biomarkers) can help guide the best hormone treatment and chemotherapy before surgery. It focuses on people with stage II or III, ER-positive, HER2-negative breast cancer, with the goal of improving how well the tumor responds before it is removed.
St Louis, MissouriAges 18 years+ - NCT05972343Recruiting
Cooling treatment to shrink breast tumors without surgery
This trial tests a cooling-based procedure (called cryoablation) to destroy a breast cancer tumor in people who cannot or do not want surgery. It may help shrink the visible tumor without needing an operating room.
St Louis, MissouriAges 18 years+ - NCT05977036Recruiting
Biomarker test to guide early treatment for HR+ HER2- breast cancer
This study uses a lab “biomarker” test to help doctors choose the best first treatment for people with HR+ (hormone-receptor positive), HER2-negative metastatic or unresectable breast cancer. The goal is to see if this biomarker-guided approach can improve which therapy you start with.
St Louis, MissouriAges 18 years+ - NCT06312176RecruitingPhase 3
Study of new drugs for HR+/HER2- advanced breast cancer
This trial tests two new drugs (sacituzumab tirumotecan and pembrolizumab) against standard treatments for a type of advanced breast cancer that is hormone receptor positive and HER2 negative. It's for people whose cancer has worsened despite hormone therapy with a CDK4/6 inhibitor.
Kansas City, MissouriAges 18 years+ - NCT06374459RecruitingPhase 1/Phase 2
Zunsemetinib and capecitabine for breast cancer with bone spread
This trial tests a new drug called zunsemetinib combined with the chemotherapy capecitabine for people with hormone receptor-positive, HER2-negative breast cancer that has spread to the bones. The goal is to see if this combination can better control the cancer.
St Louis, MissouriAges 18 years+ - NCT06440005RecruitingPhase 1
Testing AGX101 for advanced solid tumors
This study tests a new drug called AGX101 for people with advanced solid tumors that have not responded to other treatments. The goal is to see if it is safe and if it can shrink tumors or slow their growth.
St Louis, MissouriAges 18 years+ - NCT06500455RecruitingPhase 3
Standard vs longer radiation for brain metastases
This trial compares the usual short course of radiation therapy (one session) to a longer course (up to 5 sessions) for people with cancer that has spread to the brain. The goal is to see if the longer course works better and causes fewer side effects.
City of Saint Peters, MissouriAges 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.
City of Saint Peters, MissouriAges 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.
St Louis, MissouriAges 18 years+ - NCT06625775RecruitingPhase 1
Study of BBO-10203 for advanced solid tumors
This trial tests a new drug called BBO-10203, alone or combined with other cancer treatments, for people with certain advanced breast, colorectal, or lung cancers. It aims to see if the drug is safe and effective.
Kansas City, MissouriAges 18 years+ - NCT04968964Recruiting
Monitoring test for CDK4/6 drugs in metastatic breast cancer
This study follows people with hormone receptor–positive, HER2-negative metastatic breast cancer who are taking CDK4/6 inhibitor treatment (with or without an added blood test called DiviTum®). The goal is to see how well the standard treatment is working and whether DiviTum® (a serum TK1 activity test) can help guide monitoring.
St Louis, MissouriAges 18 years+ - NCT06774963RecruitingPhase 1
Study of LNCB74 for advanced solid tumors
This trial tests a new drug called LNCB74 for people with advanced solid tumors that have not responded to other treatments. It aims to see if the drug is safe and effective.
St Louis, MissouriAges 18 years+ - NCT07029399RecruitingPhase 1
Study of NKT5097 for advanced solid tumors
This trial tests an experimental oral drug (NKT5097) for people with advanced solid tumors that have not responded to other treatments. It may also be an option for people with a specific type of breast cancer (HR+/HER2-). The goal is to see if the drug is safe and effective.
St Louis, MissouriAges 18 years+ - NCT07062965RecruitingPhase 3
PF-07248144 with fulvestrant for HR+ HER2- advanced breast cancer
This trial tests a new study medicine (PF-07248144) combined with fulvestrant in people with a certain type of advanced breast cancer (HR-positive, HER2-negative) that has worsened after previous treatments. It may be an option if you've already tried a CDK4/6 inhibitor and endocrine therapy.
Kansas City, MissouriAges 18 years+ - NCT07220135RecruitingPhase 2
Comparing two drug combos before surgery for HER2+ breast cancer
This trial tests two different combinations of chemotherapy and targeted therapy given before surgery for HER2-positive breast cancer. The goal is to see which combination works better at shrinking the tumor.
Lee's Summit, MissouriAges 18 years+
Metastatic Breast Cancer trials by city in Missouri
Where these studies are running in Missouri
Institutions with a site for the recruiting metastatic breast cancer studies listed above.
- Washington University in St. Louis · 19 studies
- Siteman Cancer Center · 6 studies
- Siteman Cancer Center at Saint Peters Hospital · 5 studies
- Siteman Cancer Center at West County Hospital · 4 studies
- Mercy Hospital Springfield · 3 studies
- Saint Luke's Hospital of Kansas City · 3 studies
- University of Kansas Cancer Center - North · 3 studies
- Mercy Hospital Saint Louis · 2 studies
What taking part in a metastatic breast cancer study involves
A screening visit first
Before anything else, the study team checks whether you fit — usually a visit with some tests. You can stop at any point, and screening is typically free.
Care at a nearby site
Study visits happen at a clinic or hospital taking part. Many studies cover the cost of the study treatment and related visits, and some reimburse travel.
You stay in control
Taking part is voluntary and you can leave a study at any time, for any reason, without affecting your regular care.
The team decides eligibility
Our fit check is a helpful first read, not a decision. The study team makes the final call after reviewing your health history.
Metastatic Breast Cancer trials in other states
Common questions
- Are there metastatic breast cancer clinical trials in Missouri?
- Yes. We're currently tracking 97 recruiting metastatic breast cancer studies with a site in Missouri, each rewritten in plain language so you can see what it's testing and who it's for.
- How do I find out if I qualify for a metastatic breast cancer study in Missouri?
- Each study lists its eligibility rules — age, diagnosis, prior treatments. On every trial page we explain these in plain language and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Do I have to live in Missouri to take part?
- Not necessarily. These studies have a site in Missouri, but eligibility is about your health, not your address — some people travel to take part, and a few studies reimburse travel. The study team can tell you what's required.
- Does it cost anything to join a metastatic breast cancer trial?
- Using Clin2 is always free. Many trials cover the study treatment and related visits; some reimburse travel. The study team explains exactly what's covered before you decide.
Not the right time?
New metastatic breast cancer studies open in Missouri regularly. Set up a health profile and we’ll quietly watch for studies that fit you and email you when one opens.
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.