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Stomach Cancer clinical trials in St. Louis, MO

18 studies for Stomach Cancer are looking for participants at sites in and around St. Louis (within about 30 miles). Open a study to see who can join and how to contact the study team.

Recruiting for a study here? Feature it at the top of this page — $99 for 30 days →

The Vanguard Study: Testing a New Way to Screen for Cancer

RecruitingHealthy volunteers welcome
  • Washington University School of Medicine, St Louis
Ages 45 to 75 · All sexes · Updated Oct 5, 2026 · NCT06995898

Studying the PAGODA Algorithm for Chemotherapy Dose Changes to Prevent Unplanned Treatment Delays

RecruitingHealthy volunteers welcome
  • Mercy Infusion Center - Chippewa, St Louis
  • Mercy Hospital South, St Louis
  • Missouri Baptist Medical Center, St Louis
  • and 4 more
Ages 18 and older · All sexes · Updated Oct 2, 2026 · NCT07283939

Collecting Blood Samples From Patients With and Without Cancer to Evaluate Tests for Early Cancer Detection

RecruitingObservational studyHealthy volunteers welcome
  • Mercy Infusion Center - Chippewa, St Louis
  • Mercy Hospital South, St Louis
  • Missouri Baptist Medical Center, St Louis
  • and 4 more
Ages 40 to 75 · All sexes · Updated Oct 2, 2026 · NCT05334069

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

RecruitingPhase 2
  • Washington University, School of Medicine, St Louis
Ages 18 and older · All sexes · Updated Oct 1, 2026 · NCT06172478

A Study of LY4257496 in Participants With Cancer (OMNIRAY)

RecruitingPhase 1
  • Washington University, St Louis
Ages 18 and older · All sexes · Updated Sep 22, 2026 · NCT07114601

A Study of LY4337713 in Participants With FAP-Positive Solid Tumors

RecruitingPhase 1
  • Washington University School of Medicine in St. Louis, St Louis
Ages 18 and older · All sexes · Updated Sep 22, 2026 · NCT07213791

Study of AU-007, A Monoclonal Antibody That Binds to IL-2 and Inhibits IL-2Rα Binding, in Patients With Unresectable Locally Advanced or Metastatic Cancer

RecruitingPhase 1/2
  • Washington University, St Louis
Ages 18 and older · All sexes · Updated Sep 18, 2026 · NCT05267626

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

RecruitingPhase 1
  • Washington University School of Medicine, St Louis
Ages 18 and older · All sexes · Updated Sep 9, 2026 · NCT06253871

Ovarian-Sparing Adaptive Radiotherapy in Young Adult Women

RecruitingObservational study
  • Washington University School of Medicine, St Louis
Ages 18 to 50 · Women · Updated Sep 2, 2026 · NCT06904365

A Study to Investigate Safety of AZD6750 in Adult Participants With Select Advanced or Metastatic Solid Tumors

RecruitingPhase 1/2
  • Research Site, St Louis
Ages 18 and older · All sexes · Updated Aug 19, 2026 · NCT07115043

IDOV-Immune for Advanced Solid Tumors

RecruitingPhase 1
  • Washington University School of Medicine, St Louis
Ages 18 and older · All sexes · Updated Aug 5, 2026 · NCT06910657

A Study of Bispecific Antibody MCLA-158 in Patients With Advanced Solid Tumors

RecruitingPhase 1/2
  • Washington University School of Medicine at St Louis, St Louis
Ages 18 and older · All sexes · Updated Jul 29, 2026 · NCT03526835

Study of Orally Administered MOMA-341 in Participants With Advanced or Metastatic Solid Tumors

RecruitingPhase 1
  • Investigative Site #110, St Louis
Ages 18 and older · All sexes · Updated Jul 23, 2026 · NCT06974110

Lead-212 PSV359 Therapy for Patients With Solid Tumors

RecruitingPhase 1/2
  • Saint Louis University, St Louis
Ages 18 to 90 · All sexes · Updated Jul 6, 2026 · NCT06710756

CA-4948 in Combination With FOLFOX/PD-1 Inhibitor +/- Trastuzumab for Untreated Unresectable Gastric and Esophageal Cancer

RecruitingPhase 1
  • Washington University School of Medicine, St Louis
Ages 18 and older · All sexes · Updated Apr 27, 2026 · NCT05187182

A Phase Ⅲ Clinical Study of HLX22 in Combination With Trastuzumab and Chemotherapy for the Treatment of Gastroesophageal Junction and Gastric Cancer

RecruitingPhase 3
  • Washington University School of Medicine St. Louis, St Louis
Ages 18 and older · All sexes · Updated Feb 27, 2026 · NCT06532006

SYNERGY-AI: Artificial Intelligence Based Precision Oncology Clinical Trial Matching and Registry

RecruitingObservational study
  • Massive Bio SYNERGY-AI site, St Louis
All ages · All sexes · Updated Oct 28, 2025 · NCT03452774

About Stomach Cancer

Did you know risk factors for stomach (gastric) cancer include a diet high in salty or smoked food or having an H. pylori infection? Learn more here.

More about Stomach Cancer on MedlinePlus

Stomach Cancer trials in other cities

Other studies in St. Louis

From ClinicalTrials.gov, data retrieved Oct 6, 2026. Each study sets its own eligibility; the study team decides who can join.