Clinical trials · Missouri
HER2 + Breast Cancer clinical trials in Missouri
We’re tracking 65 recruiting her2 + breast cancer studies with a site in Missouri — including Phase 1, Phase 2, Phase 2/Phase 3 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies in Missouri
- 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+ - NCT07214532Recruiting
Guiding CDK4/6 inhibitor use by a blood test in breast cancer
This trial is for women and men with early-stage, hormone-positive, HER2-negative breast cancer. It uses a blood test (Signatera) to detect tiny amounts of cancer DNA and only starts a CDK4/6 inhibitor (ribociclib or abemaciclib) if the test shows cancer DNA is present.
St Louis, MissouriAges 18 years+ - NCT04862663RecruitingPhase 3
Capivasertib plus hormone therapy for HR+ breast cancer after progression
This Phase 3 trial studies capivasertib (a targeted pill) plus fulvestrant (a hormone injection) together with a CDK4/6 inhibitor to treat HR+ / HER2- advanced breast cancer that has returned or grown despite earlier hormone therapy. It may help by blocking growth signals linked to cancer cell survival.
Hannibal, MissouriAges 18–99 - 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.
Ballwin, MissouriAges 18–60 - NCT07173751RecruitingPhase 3
Pumitamig for advanced triple-negative breast cancer
This study tests a new drug called pumitamig for people with a type of breast cancer that is triple-negative or has very low hormone receptors and has come back or spread. It aims to see if pumitamig works better than standard treatment and how safe it is for people who cannot get PD(L)-1 immunotherapy with chemo.
Kansas City, 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+ - NCT06966700RecruitingPhase 3
Study of Sac-TMT in Early High-Risk Breast Cancer
This study tests a new drug called Sacituzumab Tirumotecan (Sac-TMT) for people with early-stage, high-risk breast cancer that hasn't spread. The drug is given before surgery to see if it can shrink tumors and improve outcomes.
Kansas City, MissouriAges 18 years+ - NCT07174336RecruitingPhase 3
Testing Tersolisib with other treatments for advanced breast cancer
This trial tests a new study drug called Tersolisib combined with other anti-cancer treatments for people with advanced breast cancer that has a specific gene change (PIK3CA). The goal is to see if the combination can help shrink or slow the cancer.
Kansas City, 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+ - NCT05307705RecruitingPhase 1
Testing LOXO-783 for PIK3CA-mutated cancers
This trial tests an experimental drug (LOXO-783) for people with advanced breast cancer or other solid tumors that have a specific change in the PIK3CA gene. The goal is to see if the drug can shrink or slow the growth of the cancer.
St Louis, MissouriAges 18 years+ - NCT06926868RecruitingPhase 2/Phase 3
Study of a new drug versus chemotherapy for advanced triple-negative breast cancer
This trial tests a new investigational drug called izalontamab brengitecan against standard chemotherapy for people with advanced triple-negative breast cancer who cannot receive immunotherapy. The goal is to see if the new drug works better at shrinking or slowing the cancer.
Kansas City, MissouriAges 18 years+ - NCT07046923RecruitingPhase 1
A study of LY4175408 for advanced cancer
This trial tests a new targeted drug (LY4175408) for people with certain advanced solid tumors (lung, endometrial, or triple negative breast cancer) who have already tried standard treatments. The goal is to see if the drug is safe and effective.
St Louis, MissouriAges 18 years+ - NCT07114601RecruitingPhase 1
Study of LY4257496 for people with GRPR-positive solid tumors
This trial tests a new drug, LY4257496, in people with certain types of cancer that have a protein called GRPR on their cells. The study aims to see if the drug can help shrink tumors or slow the cancer's growth.
St Louis, MissouriAges 18 years+ - NCT05408845RecruitingPhase 2
Study drug vs standard care for HER2 salivary gland cancer
This Phase 2 trial tests how well ado-trastuzumab emtansine (and compares to two standard treatment options) works for salivary gland cancers that are HER2-positive or HER2-low. It aims to see whether the study drug can control cancer better and with acceptable side effects.
City of Saint Peters, MissouriAges 18 years+ - 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+ - NCT06126276RecruitingPhase 2
Testing neratinib with or without palbociclib for HER2+ solid tumors
This trial tests two targeted drugs—neratinib alone or with palbociclib—for people with HER2-positive solid tumors (other than breast cancer) that have returned or not gone away. The goal is to see if blocking HER2 and CDK4/6 can shrink or slow the tumor.
Cape Girardeau, MissouriAges 18 years+ - NCT05256225RecruitingPhase 3
Adding Herceptin medicines to chemo for HER2-positive endometrial cancer
This Phase 3 trial tests whether adding Herceptin Hylecta or Phesgo to standard chemotherapy works better than chemotherapy alone for HER2-positive serous endometrial cancer or carcinosarcoma. It may help by improving how well treatment controls or shrinks the cancer.
Columbia, MissouriAges 18 years+
Where these studies are running in Missouri
Institutions with a site for the recruiting her2 + breast cancer studies listed above.
- Washington University in St. Louis · 11 studies
- Saint Luke's Cancer Institute · 5 studies
- CoxHealth South Hospital · 2 studies
- Ellis Fischel Cancer Center / MU Health - University Hospital · 2 studies
- Mercy Hospital Saint Louis · 2 studies
- Missouri Baptist Medical Center · 2 studies
- Phelps Health Delbert Day Cancer Institute · 2 studies
- Saint Francis Medical Center · 2 studies
What taking part in a her2 + 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.
HER2 + Breast Cancer trials in other states
Common questions
- Are there her2 + breast cancer clinical trials in Missouri?
- Yes. We're currently tracking 65 recruiting her2 + 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 her2 + 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 her2 + 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 her2 + 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.