CancerDrs

Breast Cancer clinical trials in Missouri

42 actively recruiting breast cancer trials at 25 sites across Missouri.

Data from ClinicalTrials.gov · last refreshed

Payments from drug makers to the doctors running these trials

For 2 of the trials on this page, the pharmaceutical company funding the trial also disclosed payments to the physicians leading it — public data from the federal CMS Open Payments database. Paying clinical-trial investigators for site work is expected and necessary for industry-funded trials; the scale and source are simply useful context when you're deciding whether to enroll. See the full breast cancer transparency page →

Phase 3 Recruiting Academic/Other

Evaluating the Addition of Adjuvant Chemotherapy to Ovarian Function Suppression Plus Endocrine Therapy in Premenopausal Patients With pN0-1, ER-Positive/HER2-Negative Breast Cancer and an Oncotype Recurrence Score Less Than or Equal to 25

This Phase III Trial will determine whether adjuvant chemotherapy (ACT) added to ovarian function suppression (OFS) plus endocrine therapy (ET) is superior to OFS plus ET in improving invasive breast cancer-free survival (IBCFS) among prem…

Sponsor: NRG Oncology
NCT ID: NCT05879926
Sites in Missouri:
  • Mercy Oncology and Hematology - Clayton-Clarkson — Ballwin, Missouri
  • Central Care Cancer Center - Bolivar — Bolivar, Missouri
  • Cox Cancer Center Branson — Branson, Missouri
  • Mercy Cancer Center - Cape Girardeau — Cape Girardeau, Missouri
  • Saint Francis Medical Center — Cape Girardeau, Missouri
View on ClinicalTrials.gov →
Phase 3 Recruiting Academic/Other

ShortStop-HER2: 12 Months vs. 6 Months of HER2-targeted Medications for People With HER2+ Breast Cancer Who Had a Pathologic Complete Response After Chemotherapy Plus Trastuzumab

This phase III trial compares 6 months of human epidermal growth factor receptor 2 (HER2)-targeted therapy to 12 months of HER2-targeted therapy for the treatment of HER2-positive (+) breast cancer in patients that had a pathologic complet…

Sponsor: Alliance for Clinical Trials in Oncology
NCT ID: NCT06876714
Sites in Missouri:
  • Mercy Oncology and Hematology - Clayton-Clarkson — Ballwin, Missouri
  • Central Care Cancer Center - Bolivar — Bolivar, Missouri
  • Cox Cancer Center Branson — Branson, Missouri
  • Mercy Cancer Center - Cape Girardeau — Cape Girardeau, Missouri
  • Saint Francis Medical Center — Cape Girardeau, Missouri
View on ClinicalTrials.gov →
Phase 3 Recruiting Academic/Other

Testing Longer Duration Radiation Therapy Versus the Usual Radiation Therapy in Patients With Cancer That Has Spread to the Brain

This phase III trial compares the effectiveness of fractionated stereotactic radiosurgery (FSRS) to usual care stereotactic radiosurgery (SRS) in treating patients with cancer that has spread from where it first started to the brain. Radia…

Sponsor: NRG Oncology
NCT ID: NCT06500455
Sites in Missouri:
  • Siteman Cancer Center at Saint Peters Hospital — City of Saint Peters, Missouri
  • MU Health - University Hospital/Ellis Fischel Cancer Center — Columbia, Missouri
  • Siteman Cancer Center at West County Hospital — Creve Coeur, Missouri
  • Parkland Health Center - Farmington — Farmington, Missouri
  • Mercy Hospital Springfield — Springfield, Missouri
View on ClinicalTrials.gov →
Phase 3 Recruiting Industry

Study of Sacituzumab Govitecan-hziy and Pembrolizumab Versus Treatment of Physician's Choice in Patients With Triple Negative Breast Cancer Who Have Residual Invasive Disease After Surgery and Neoadjuvant Therapy (ASCENT-05/AFT-65 OptimICE-RD/GBG 119/NSABP B-63)

The goal of this study is to find out if the experimental product, sacituzumab govitecan-hziy (SG) in combination with pembrolizumab given after surgery, is effective and safe compared to the treatment of physician's choice (TPC) which inc…

Sponsor: Gilead Sciences
NCT ID: NCT05633654
Sites in Missouri:
  • Washington University School of Medicine — St Louis, Missouri
  • Baptist Clinical Research Institute — St Louis, Missouri
  • Mercy Hospital — St Louis, Missouri
View on ClinicalTrials.gov →
Phase 3 Recruiting Industry

An Adjuvant Endocrine-based Therapy Study of Camizestrant (AZD9833) in ER+/HER2- Early Breast Cancer (CAMBRIA-2)

This is a Phase III open-label study to assess if camizestrant improves outcomes compared to standard adjuvant endocrine therapy for patients with ER+/HER2- early breast cancer with intermediate-high or high risk for disease recurrence who…

Sponsor: AstraZeneca
NCT ID: NCT05952557
Sites in Missouri:
  • Research Site — Kansas City, Missouri
  • Research Site — St Louis, Missouri
  • Research Site — St Louis, Missouri
View on ClinicalTrials.gov →
Phase 3 Recruiting Industry

A Study of Tersolisib (LY4064809/STX-478) With Other Anti-Cancer Treatments in Participants With Advanced Breast Cancer With a Genetic Change (PIK3CA)

The purpose of the study is to assess the efficacy and safety of the addition of Tersolisib (LY4064809/STX-478) to other anti-cancer drugs as first treatment for advanced hormone receptor-positive (HR+)/human epidermal growth factor recept…

Sponsor: Eli Lilly and Company
NCT ID: NCT07174336
Sites in Missouri:
  • Saint Luke's Cancer Institute — Kansas City, Missouri
  • Oncology Hematology Associates — Springfield, Missouri
View on ClinicalTrials.gov →
Phase 3 Recruiting Industry

A Study to Learn About the Study Medicine Called PF-07248144 in Combination With Fulvestrant in People With HR-positive, HER2-negative Advanced or Metastatic Breast Cancer Who Progressed After a Prior Line of Treatment.

The purpose of this study is to learn about the safety and effects of the study medicine PF-07248144 when given along with fulvestrant for the possible treatment of HR-positive, HER2-negative advanced or metastatic breast cancer. HR-positi…

Sponsor: Pfizer
NCT ID: NCT07062965
Sites in Missouri:
  • Siteman Cancer Center - St Peters — City of Saint Peters, Missouri
  • Siteman Cancer Center - North County — Florissant, Missouri
  • Saint Luke's Hospital of Kansas City — Kansas City, Missouri
  • Siteman Cancer Center — St Louis, Missouri
View on ClinicalTrials.gov →
Phase 3 Recruiting Industry

Phase IIIb Study of Ribociclib + ET in Early Breast Cancer

The purpose of this open-label, multicenter, phase IIIb, single-arm study is to characterize the efficacy and safety of the combination of ribociclib and standard adjuvant endocrine therapy (ET) on invasive breast cancer-free survival (iBC…

Sponsor: Novartis Pharmaceuticals
NCT ID: NCT05827081
Sites in Missouri:
  • HCA Midwest Division — Kansas City, Missouri
  • WA Uni School Of Med — St Louis, Missouri
View on ClinicalTrials.gov →
Phase 3 Recruiting Industry

Capivasertib + CDK4/6i + Fulvestrant for Advanced/Metastatic HR+/HER2- Breast Cancer (CAPItello-292)

A Phase Ib/III Open-label, Randomised Study of Capivasertib plus CDK4/6 Inhibitors and Fulvestrant versus CDK4/6 Inhibitors and Fulvestrant in Hormone Receptor-Positive and Human Epidermal Growth Factor Receptor 2-Negative Locally Advanced…

Sponsor: AstraZeneca
NCT ID: NCT04862663
Sites in Missouri:
  • Research Site — Hannibal, Missouri
  • Research Site — St Louis, Missouri
View on ClinicalTrials.gov →
Phase 3 Recruiting Industry

Phase 3 Study to Evaluate the Efficacy and Safety of HER2/Neu Peptide GLSI-100 (GP2 + GM-CSF) in HER2/Neu Positive Subjects

This is a prospective, randomized, double-blinded, placebo-controlled, multi-center, Phase 3 study of GLSI-100 immunotherapy in HLA-A\*02 positive and HER2/neu positive subjects who are at high risk for disease recurrence and have complete…

Sponsor: Greenwich LifeSciences, Inc.
NCT ID: NCT05232916
Sites in Missouri:
  • Siteman Cancer Center - Washington University Medical Campus — St Louis, Missouri
View on ClinicalTrials.gov →
Phase 3 Recruiting Industry

Palazestrant in Combination With Ribociclib for the First-line Treatment of ER+/HER2- Advanced Breast Cancer

This phase 3 clinical trial compares the efficacy and safety of palazestrant with ribociclib to letrozole and ribociclib in women and men who have not received prior systemic anti-cancer treatment for advanced breast cancer.

Sponsor: Olema Pharmaceuticals, Inc.
NCT ID: NCT07085767
Sites in Missouri:
  • Clinical Trial Site — Kansas City, Missouri
View on ClinicalTrials.gov →
Phase 3 Recruiting Industry

ROSETTA Breast-01: The Effects and Safety of Pumitamig in Patients With Triple-Negative Breast Cancer

This is a Phase III trial where participants will be randomized to two treatment groups, which means participants will be assigned by equal chance to a treatment group. This trial will be double-blinded, which means neither the participant…

Sponsor: BioNTech SE
NCT ID: NCT07173751
Sites in Missouri:
  • Saint Luke's Hospital of Kansas City — Kansas City, Missouri
View on ClinicalTrials.gov →
Phase 2 Recruiting NIH

Targeted Therapy Directed by Genetic Testing in Treating Patients With Locally Advanced or Advanced Solid Tumors, The ComboMATCH Screening Trial

This ComboMATCH patient screening trial is the gateway to a coordinated set of clinical trials to study cancer treatment directed by genetic testing. Patients with solid tumors that have spread to nearby tissue or lymph nodes (locally adva…

Sponsor: National Cancer Institute (NCI)
NCT ID: NCT05564377
Sites in Missouri:
  • Saint Francis Medical Center — Cape Girardeau, Missouri
  • Saint Luke's Hospital — Chesterfield, Missouri
  • Siteman Cancer Center at Saint Peters Hospital — City of Saint Peters, Missouri
  • Siteman Cancer Center at West County Hospital — Creve Coeur, Missouri
  • Parkland Health Center - Farmington — Farmington, Missouri
View on ClinicalTrials.gov →
Phase 1, Phase 2 Recruiting Industry

Open-Label Umbrella Study To Evaluate Safety And Efficacy Of Elacestrant In Various Combination In Participants With Metastatic Breast Cancer

This is a multicenter, Phase 1b/2 trial in participants with estrogen receptor positive/human epidermal growth factor receptor 2 negative (ER+/HER2-) advanced/metastatic breast cancer. The phase 1b part of the trial will determine the reco…

Sponsor: Stemline Therapeutics, Inc.
NCT ID: NCT05563220
Sites in Missouri:
  • Washington University School of Medicine in St. Louis — St Louis, Missouri
View on ClinicalTrials.gov →
Phase 2 Recruiting Industry

A Study of Alisertib in Combination With Endocrine Therapy in Patients With HR-positive, HER2-negative Recurrent or Metastatic Breast Cancer

PUMA-ALI-1201 is a randomized, dose optimization, multicenter, Phase 2 study of alisertib administered in combination with endocrine therapy in participants with pathology-confirmed HR-positive/HER2-negative metastatic breast cancer (MBC) …

Sponsor: Puma Biotechnology, Inc.
NCT ID: NCT06369285
Sites in Missouri:
  • Missouri Cancer Associates — Columbia, Missouri
  • Saint Luke's Cancer Institute — Kansas City, Missouri
  • Oncology Hematology Associates — Springfield, Missouri
  • Washington University School of Medicine — St Louis, Missouri
View on ClinicalTrials.gov →
Phase 1, Phase 2 Recruiting Industry

A Clinical Study to Find the Optimal Dose of an Investigational Treatment Called BNT323 When Used in Combination With Another Investigational Treatment, BNT327, and to Test if That Combination Treatment is Safe and Beneficial for Patients With Advanced Breast Cancer

This is a Phase I/II, multi-site, open-label, two-part study designed to evaluate the efficacy, safety, optimized dose and contribution of components of BNT323 (also known as trastuzumab pamirtecan and DB-1303) in combination with BNT327 (…

Sponsor: BioNTech SE
NCT ID: NCT06827236
Sites in Missouri:
  • Saint Luke's Hospital of Kansas City — Kansas City, Missouri
  • Washington University School of Medicine — St Louis, Missouri
View on ClinicalTrials.gov →
Phase 1, Phase 2 Recruiting Industry

A Study of Sacituzumab Govitecan Given at an Alternative Dose and Schedule in Participants With Advanced Triple-Negative Breast Cancer

The goal of this clinical study is to learn more about the study drug sacituzumab govitecan-hziy (SG) given at an alternative dose and schedule, in participants with triple-negative breast cancer (TNBC). The primary objectives of this stud…

Sponsor: Gilead Sciences
NCT ID: NCT06926920
Sites in Missouri:
  • Siteman Cancer Center — St Louis, Missouri
View on ClinicalTrials.gov →
Phase 1, Phase 2 Recruiting Industry

Study of ECI830 Single Agent or in Combination in Patients With Advanced HR+/HER2- Breast Cancer and Other Advanced Solid Tumors

Phase I: Characterize safety and tolerability of ECI830 as a single agent and in combination with ribociclib and fulvestrant. Identify dose range for optimization/recommended dose for future studies. Phase II: Assess the anti-tumor activit…

Sponsor: Novartis Pharmaceuticals
NCT ID: NCT06726148
Sites in Missouri:
  • WA Uni School Of Med — St Louis, Missouri
View on ClinicalTrials.gov →
Phase 2 Recruiting Academic/Other

Trial of Neoadjuvant THP vs TCHP for HER2-Amplified/Positive Breast Cancer

This is a randomized phase II study to evaluate the pathological complete response (pCR) rate with two neoadjuvant regimens (Docetaxel+Carboplatin+Herceptin/Perjeta and Docetaxel+Herceptin/Perjeta) in HER2 amplified/positive early breast c…

Sponsor: University of Kansas Medical Center
NCT ID: NCT07220135
Sites in Missouri:
  • The University of Kansas Cancer Center - North — Kansas City, Missouri
  • KUCC - Lee's Summit — Lee's Summit, Missouri
View on ClinicalTrials.gov →
Phase 1, Phase 2 Recruiting Industry

A First-in-human Dose Escalation and Expansion Study to Evaluate the Safety, and Tolerability of AZD8421 Alone or in Combination in Participants With Selected Advanced or Metastatic Solid Tumors

This study is designed to evaluate AZD8421 alone and in combination with selected targeted anti-cancer drugs in patients with ER+HER2- advanced breast cancer, and patients with metastatic high-grade serious ovarian cancer.

Sponsor: AstraZeneca
NCT ID: NCT06188520
Sites in Missouri:
  • Research Site — St Louis, Missouri
View on ClinicalTrials.gov →
Phase 2 Recruiting Academic/Other

Prospective Evaluation Of High-Dose Systemic Methotrexate In Patients With Breast Cancer And Leptomeningeal Metastasis

This study is a prospective evaluation of systemic, intravenous high-dose methotrexate (HD-MTX, 8 g/m2) in patients with triple negative, HER2-positive, and hormone refractory breast cancer with leptomeningeal metastasis (LMD) with or with…

Sponsor: Wake Forest University Health Sciences
NCT ID: NCT02422641
Sites in Missouri:
  • Siteman Cancer Center- Washington University School of Medicine in St. Louis — St Louis, Missouri
View on ClinicalTrials.gov →

Showing 25 of 42 trials with sites in Missouri. See all breast cancer trials →

Medical disclaimer: This page aggregates public ClinicalTrials.gov data. It is not medical advice. Always confirm eligibility and enrollment details with the trial site or your oncologist.

Source: ClinicalTrials.gov API v2 · Last checked: 2026-05-25