CancerDrs

Breast Cancer clinical trials in Missouri

35 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 1 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 Network

Shorter Chemo-Immunotherapy Without Anthracycline Drugs for Early-Stage Triple Negative Breast Cancer

This phase III trial compares the effects of shorter chemotherapy (chemo)-immunotherapy without anthracyclines to usual chemo-immunotherapy for the treatment of early-stage triple negative breast cancer. Paclitaxel is in a class of medicat…

Sponsor: SWOG Cancer Research Network
NCT ID: NCT05929768
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

De-Escalation of Breast Radiation Trial for Hormone Sensitive, HER-2 Negative, Oncotype Recurrence Score Less Than or Equal to 18 Breast Cancer (DEBRA)

This Phase III Trial evaluates whether breast conservation surgery and endocrine therapy results in a non-inferior rate of invasive or non-invasive ipsilateral breast tumor recurrence (IBTR) compared to breast conservation with breast radi…

Sponsor: NRG Oncology
NCT ID: NCT04852887
Sites in Missouri:
  • Saint Francis Medical Center — Cape Girardeau, 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
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

A Study of Elacestrant Versus Standard Endocrine Therapy in Women and Men With ER+,HER2-, Early Breast Cancer With High Risk of Recurrence

The primary goal of this study is to evaluate the effectiveness of elacestrant versus standard endocrine therapy in participants with node-positive, Estrogen Receptor-positive (ER+), Human Epidermal Growth Factor-2 negative (HER2-) early b…

Sponsor: Stemline Therapeutics, Inc.
NCT ID: NCT06492616
Sites in 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

A Phase III Study of Dato-DXd With or Without Durvalumab Compared With Investigator's Choice of Chemotherapy in Combination With Pembrolizumab in Patients With PD-L1 Positive Locally Recurrent Inoperable or Metastatic Triple-negative Breast Cancer (TROPION-Breast05)

This is a Phase III, randomised, open-label, 3-arm, multicentre, international study assessing the efficacy and safety of Dato-DXd with or without durvalumab compared with investigator's choice chemotherapy in combination with pembrolizuma…

Sponsor: AstraZeneca
NCT ID: NCT06103864
Sites in Missouri:
  • Research Site — St Louis, Missouri
View on ClinicalTrials.gov →
Phase 3 Recruiting Industry

A Study to Evaluate Efficacy and Safety of Giredestrant Compared With Fulvestrant (Plus a CDK4/6 Inhibitor), in Participants With ER-Positive, HER2-Negative Advanced Breast Cancer Resistant to Adjuvant Endocrine Therapy (pionERA Breast Cancer)

This is a Phase III, randomized, open-label multicenter study that will evaluate the efficacy and safety of giredestrant compared with fulvestrant, both in combination with the investigator's choice of a CDK4/6 inhibitor (palbociclib, ribo…

Sponsor: Hoffmann-La Roche
NCT ID: NCT06065748
Sites in Missouri:
  • HCA Midwest Division — Kansas City, Missouri
  • Cancer Care Center of O'Fallon — O'Fallon, Missouri
View on ClinicalTrials.gov →
Phase 3 Recruiting Industry

A Clinical Study of Sacituzumab Tirumotecan (Sac-TMT, MK-2870) in People With Breast Cancer (MK-2870-032)

Researchers are looking for new ways to treat types of breast cancer that are both: * High-risk, which means the cancer may have a higher chance of getting worse or coming back after treatment * Early-stage, which means the cancer is in th…

Sponsor: Merck Sharp & Dohme LLC
NCT ID: NCT06966700
Sites in Missouri:
  • Saint Luke's Cancer Institute ( Site 0059) — Kansas City, Missouri
  • Washington University Siteman Cancer Center ( Site 0031) — St Louis, Missouri
View on ClinicalTrials.gov →
Phase 3 Recruiting Industry

A Study Evaluating the Efficacy and Safety of Inavolisib Plus CDK4/6 Inhibitor and Letrozole vs Placebo + CDK4/6i and Letrozole in Participants With Endocrine-Sensitive PIK3CA-Mutated, Hormone Receptor-Positive, HER2-Negative Advanced Breast Cancer

This study will evaluate the efficacy and safety of the combination of inavolisib plus a cyclin-dependent kinase 4 and 6 inhibitor (CDK4/6i) and letrozole versus placebo plus a CDK4/6i and letrozole in the first-line setting in participant…

Sponsor: Hoffmann-La Roche
NCT ID: NCT06790693
Sites in Missouri:
  • HCA Midwest Health — Kansas City, Missouri
View on ClinicalTrials.gov →
Phase 3 Recruiting Academic/Other

Testing Proton Craniospinal Radiation Therapy Versus the Usual Radiation Therapy for Leptomeningeal Metastasis, RADIATE-LM Trial

This phase III trial compares proton craniospinal irradiation (pCSI) to involved-field radiation therapy (IFRT) for the treatment of breast or non-small cell lung cancer that has spread from where it first started to the cerebrospinal flui…

Sponsor: NRG Oncology
NCT ID: NCT06500481
Sites in Missouri:
  • Siteman Cancer Center at Saint Peters Hospital — City of Saint Peters, Missouri
  • Siteman Cancer Center at West County Hospital — Creve Coeur, Missouri
  • University of Kansas Cancer Center - North — Kansas City, Missouri
  • University of Kansas Cancer Center - Lee's Summit — Lee's Summit, Missouri
  • Mercy Hospital Springfield — Springfield, 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

A Study Comparing the Efficacy and Safety of Zanidatamab to Trastuzumab, Each in Combination With Physician's Choice Chemotherapy, for the Treatment of Participants With Metastatic HER2-positive Breast Cancer

The efficacy and safety of zanidatamab in combination with physician's choice of chemotherapy compared with trastuzumab in combination with physician's choice of chemotherapy will be evaluated for the treatment of participants with metasta…

Sponsor: Jazz Pharmaceuticals
NCT ID: NCT06435429
Sites in Missouri:
  • Saint Luke's Cancer Institute — Kansas City, Missouri
View on ClinicalTrials.gov →
Phase 3 Recruiting Industry

Evaluation of Lasofoxifene Combined With Abemaciclib Compared With Fulvestrant Combined With Abemaciclib in Locally Advanced or Metastatic ER+/HER2- Breast Cancer With an ESR1 Mutation

The goal of this clinical trial is to assess the efficacy, safety and tolerability of the combination of lasofoxifene and abemaciclib compared to fulvestrant and abemaciclib for the treatment of pre- and postmenopausal women and men who ha…

Sponsor: LeonaBio
NCT ID: NCT05696626
Sites in Missouri:
  • Saint Luke's Cancer Institute — Kansas City, Missouri
  • Washington University School of Medicine — St Louis, Missouri
View on ClinicalTrials.gov →
Phase 3 Recruiting Industry

Phase 3 Study of Gedatolisib as First-Line Treatment for Patients With HR-Positive, HER2-Negative Advanced Breast Cancer (VIKTORIA-2)

This is a Phase 3, open-label, randomized, clinical trial evaluating the efficacy and safety of gedatolisib and palbociclib plus endocrine therapy for the treatment of patients with locally advanced or metastatic HR+/HER2- advanced breast …

Sponsor: Celcuity Inc
NCT ID: NCT06757634
Sites in Missouri:
  • Saint Luke's Cancer Institute — Kansas City, Missouri
  • Washington University School of Medicine in Saint Louis — St Louis, 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 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 2 Recruiting Industry

A Study of HER3-DXd in Subjects With Locally Advanced or Metastatic Solid Tumors

This is a proof-of-concept study designed to investigate HER3-DXd monotherapy in locally advanced unresectable or metastatic solid tumors. The study is enrolling cohorts of participants with melanoma \[cutaneous/acral\], squamous cell carc…

Sponsor: Daiichi Sankyo
NCT ID: NCT06172478
Sites in Missouri:
  • Washington University, School of Medicine — St Louis, Missouri
View on ClinicalTrials.gov →
Phase 1, Phase 2 Recruiting Academic/Other

Zunsemetinib in Combination With Capecitabine in Patients With Hormone Receptor-Positive and HER2-Negative Metastatic Breast Cancer With Bone Metastasis

This is a phase Ib/II study evaluating the safety and efficacy of zunsemetinib (ATI-450) with capecitabine in patients with hormone receptor-positive and HER2-negative (HR+/HER2-) metastatic breast cancer (MBC).

Sponsor: Washington University School of Medicine
NCT ID: NCT06374459
Sites in Missouri:
  • Washington University School of Medicine — St Louis, Missouri
View on ClinicalTrials.gov →
Phase 1 Recruiting Industry

A Phase 1/1b Study of IAM1363 in HER2 Cancers

This is a Phase 1/1b open-label, multi-center dose escalation and dose optimization study designed to evaluate the safety and preliminary efficacy of IAM1363 in participants with advanced cancers that harbor HER2 alterations.

Sponsor: Iambic Therapeutics, Inc
NCT ID: NCT06253871
Sites in Missouri:
  • Saint Luke's Cancer Institute — Kansas City, Missouri
  • Washington University School of Medicine — St Louis, Missouri
View on ClinicalTrials.gov →
Phase 1 Recruiting Industry

A Study of LY4257496 in Participants With Cancer (OMNIRAY)

The main purpose of this study is to evaluate safety, tolerability, and efficacy of LY4257496 alone and as part of relevant standard of care (SOC) combination therapy in participants with Gastrin-releasing Peptide Receptor (GRPR)-positive …

Sponsor: Eli Lilly and Company
NCT ID: NCT07114601
Sites in Missouri:
  • Washington University — St Louis, Missouri
View on ClinicalTrials.gov →
Phase 1 Recruiting Industry

Study of XB010 in Subjects With Solid Tumors

This is a FIH study is to evaluate the safety, tolerability, PK, immunogenicity, and preliminary antitumor activity of XB010 as a single agent and in combination with pembrolizumab in subjects with locally advanced or metastatic solid tumo…

Sponsor: Exelixis
NCT ID: NCT06545331
Sites in Missouri:
  • Siteman Cancer Center — St Louis, Missouri
View on ClinicalTrials.gov →

Showing 25 of 35 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: 2026-08-17