Clinical trials · St. Louis, MO
Metastatic Breast Cancer clinical trials in St. Louis
We’re tracking 91 recruiting metastatic breast cancer studies with a site in or near St. Louis — including Phase 1, Phase 1/Phase 2, Phase 2 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies near St. Louis
- NCT05863195RecruitingPhase 3
Testing a liver pump with standard chemo for colorectal cancer that spread to the liver
This trial tests whether adding a special chemotherapy pump implanted in your liver (hepatic arterial infusion) to standard chemotherapy works better than standard chemotherapy alone for people whose colorectal cancer has spread only to the liver and cannot be removed by surgery. The pump delivers high doses of chemo directly to the liver to shrink tumors and possibly control the disease longer.
St Louis, MissouriAges 18 years+ - NCT05879926RecruitingPhase 3
Testing chemo after hormone therapy in premenopausal early breast cancer
This Phase 3 trial checks whether adding chemotherapy after standard hormone-blocking treatment works better for some premenopausal women with early-stage, ER-positive, HER2-negative breast cancer. It targets patients with limited lymph node spread and a lower-to-intermediate tumor “recurrence” risk score.
St Louis, MissouriAges 18–60 - 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+ - NCT05633654RecruitingPhase 3
Test drug combo versus standard care for triple-negative breast cancer
This trial tests a cancer antibody-drug combination plus pembrolizumab (immunotherapy) versus standard treatment. It’s for people with triple-negative breast cancer that still has invasive disease in the breast or lymph nodes after surgery and chemotherapy before surgery.
St Louis, MissouriAges 18 years+ - NCT06058377RecruitingPhase 3
Adding immunotherapy to chemo for stage II-III breast cancer
This trial tests whether adding the immunotherapy drug durvalumab to standard chemotherapy works better than chemo alone for people with hormone receptor positive, HER2 negative breast cancer that is stage II or III and has a high-risk genetic score (MammaPrint High Risk 2).
St Louis, MissouriAges 18 years+ - NCT07115043RecruitingPhase 1/Phase 2
Study of AZD6750 for advanced solid tumors
This trial tests a new drug called AZD6750 for people with advanced solid tumors that have not responded to standard treatments. It aims to see if the drug is safe and effective.
St Louis, MissouriAges 18 years+ - NCT07287098RecruitingPhase 2
Imlunestrant for premenopausal women with ER+/HER2- early breast cancer
This trial tests a new hormone-blocking pill (imlunestrant) in premenopausal women with early-stage ER+/HER2- breast cancer. Depending on whether you've had prior hormone therapy, the study will see if this treatment works better than standard options.
St Louis, MissouriAges 18 years+ - NCT07225946RecruitingPhase 3
Study of pasritamig with docetaxel for advanced prostate cancer
This trial tests a new drug called pasritamig combined with the chemotherapy docetaxel, compared to docetaxel alone, in men with prostate cancer that has spread and is no longer responding to hormone therapy.
St Louis, MissouriAges 18 years+ - NCT07222267RecruitingPhase 1
Study of BG-75202 for advanced solid tumors
This trial tests a new drug called BG-75202, alone or with other drugs, for people with advanced breast cancer or other solid tumors that have stopped responding to standard treatments. It may offer a new option when other treatments have failed.
St Louis, 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+ - 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.
St Louis, MissouriAges 18 years+ - NCT06748222RecruitingPhase 3
Online mindfulness program for breast cancer survivors
This trial tests a 6-week online mindfulness program to help breast cancer survivors manage mild to moderate depression. You may qualify if you finished active treatment within the last 5 years and can use a digital device.
St Louis, MissouriAges 18–50 - NCT05372614RecruitingPhase 1
Testing trastuzumab deruxtecan and neratinib for HER2-positive cancers
This trial tests a combination of two targeted drugs, trastuzumab deruxtecan (Enhertu) and neratinib, for people with solid tumors that have a HER2 gene change. The goal is to see if the combination is safe and works well for cancers that have not responded to at least one prior treatment.
St Louis, MissouriAges 18 years+ - NCT06876714RecruitingPhase 3
Shorter vs Longer HER2 Therapy for Breast Cancer with Complete Response
This trial compares 6 months versus 12 months of HER2-targeted therapy for people with HER2+ breast cancer who had a complete response after chemo and trastuzumab. The goal is to see if a shorter treatment is just as effective.
St Louis, MissouriAges 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+ - NCT06726148RecruitingPhase 1/Phase 2
Study of ECI830 for advanced breast cancer and solid tumors
This trial is testing a new drug called ECI830, either alone or with another drug, for people with advanced breast cancer or other solid tumors that have not responded to standard treatments. It may be an option if you have HR+/HER2- breast cancer, small cell lung cancer, or a tumor with a specific gene change (CCNE1 amplification).
St Louis, MissouriAges 18–100 - NCT04981119Recruiting
Test apheresis for CAR T manufacturing in HLA-A2 solid tumors
This trial studies how a process called apheresis is used to make CAR T cells for people with certain solid tumors. It is designed for tumors that have lost a specific immune marker (HLA-A*02), which may affect how well CAR T therapies work.
St Louis, MissouriAges 18 years+ - NCT06618287RecruitingPhase 1/Phase 2
Testing BMS-986507 for advanced lung and breast cancers
This study tests a new drug called BMS-986507, given in different combinations, for people with advanced solid tumors (lung cancer or breast cancer that has spread). It looks at safety, how the drug works in the body, and if it helps shrink tumors.
St Louis, MissouriAges 18 years+ - NCT06757634RecruitingPhase 3
A study of gedatolisib for first-line advanced breast cancer
This trial tests a new targeted therapy called gedatolisib for people with HR-positive, HER2-negative advanced breast cancer who have not yet received treatment for metastatic disease. It aims to see if adding this drug to standard hormone therapy can help control the cancer longer.
St Louis, MissouriAges 18 years+ - NCT06827236RecruitingPhase 1/Phase 2
Testing a new combination treatment for advanced breast cancer
This study tests two experimental drugs, BNT323 and BNT327, together in people with advanced breast cancer. The goal is to find the best dose and see if the combination is safe and helpful.
St Louis, MissouriAges 18 years+ - 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+ - 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+ - NCT05812807RecruitingPhase 3
Pembrolizumab versus monitoring after triple-negative breast cancer response
This trial checks whether giving pembrolizumab (an immunotherapy) after surgery helps people with triple-negative breast cancer reduce the chance of the cancer coming back, compared with close monitoring only. It’s for patients who had no remaining invasive cancer after neoadjuvant chemotherapy plus pembrolizumab.
St Louis, MissouriAges 18 years+ - NCT06103864RecruitingPhase 3
Study of Dato-DXd with or without durvalumab for advanced triple-negative breast cancer
This trial is testing whether a new drug combination (Dato-DXd with or without durvalumab) works better than standard chemotherapy plus pembrolizumab for people with a certain type of advanced triple-negative breast cancer that has a protein called PD-L1. The study aims to find a more effective treatment option for this specific group.
St Louis, MissouriAges 18 years+
Hear when a new Metastatic Breast Cancer trial opens near St. Louis, MO
We’ll email you when one opens near St. Louis, MO — at most once a week, no account needed, unsubscribe anytime.
Metastatic Breast Cancer trials in other cities
Where these studies are running near St. Louis
Institutions with a site for the recruiting metastatic breast cancer studies listed above.
- Washington University in St. Louis · 14 studies
- Missouri Baptist Medical Center · 6 studies
- Cancer Care Center of O'Fallon · 5 studies
- Memorial Hospital East · 5 studies
- Mercy Hospital South · 5 studies
- Siteman Cancer Center · 5 studies
- Siteman Cancer Center at Saint Peters Hospital · 5 studies
- Siteman Cancer Center at West County Hospital · 5 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.
Looking wider? See all recruiting metastatic breast cancer studies in Missouri.
Common questions
- Are there metastatic breast cancer clinical trials near St. Louis?
- Yes. We're currently tracking 91 recruiting metastatic breast cancer studies with a site near St. Louis, 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 near St. Louis?
- 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 St. Louis to take part?
- Not necessarily. These studies have a site near St. Louis, 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 near St. Louis regularly. Set up a health profile and we’ll quietly watch for studies that fit you and email you when one opens.