Clinical Trials at Mercy Hospital Saint Louis

As of June 2026, 95 paid clinical trials are recruiting at Mercy Hospital Saint Louis, located at Mercy Hospital St Louis, 615 S New Ballas Rd, St. Louis, MO 63141, phone (314) 251-6000 in St Louis, Missouri. Compensation typically covers time, travel, and study visits — most studies also offer study-related medical care at no cost to participants.

Recruiting trial data synced daily from ClinicalTrials.gov. Last sync: June 12, 2026.

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95 clinical trials at Mercy Hospital Saint Louis

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A Study to Test the Addition of the Drug Cabozantinib to Chemotherapy in Patients With Newly Diagnosed Osteosarcoma

for High Grade Osteosarcoma

Drug: Cabozantinib

175 locations incl. Birmingham

Sponsor: National Cancer Institute (NCI)

Sex: All·Age: Up to 40

Code: NCT05691478·Phase 2, Phase 3·Recruiting

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Testing the Addition of Stereotactic Radiation Therapy With Immune Therapy for the Treatment of Patients With Unresectable or Metastatic Renal Cell Cancer, SAMURAI Trial

for Metastatic Renal Cell Carcinoma

313 locations incl. Birmingham

Sponsor: NRG Oncology

Sex: All·Age: 18+

Code: NCT05327686·Phase 2·Recruiting

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mFOLFIRINOX Versus mFOLFOX With or Without Nivolumab for the Treatment of Advanced, Unresectable, or Metastatic HER2 Negative Esophageal, Gastroesophageal Junction, and Gastric Adenocarcinoma

for Advanced Esophageal Adenocarcinoma

Drug: Nivolumab

785 locations incl. Birmingham

Sponsor: Alliance for Clinical Trials in Oncology

Sex: All·Age: 18+

Code: NCT05677490·Phase 3·Recruiting

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Testing the Addition of Herceptin Hylecta or Phesgo to the Usual Chemotherapy for HER2 Positive Endometrial Serous Carcinoma or Carcinosarcoma

for Endometrial Carcinoma

403 locations incl. Birmingham

Sponsor: National Cancer Institute (NCI)

Sex: Female·Age: 18+

Code: NCT05256225·Phase 3·Recruiting

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

for Acute Lymphoblastic Leukemia

746 locations incl. Anchorage

Sponsor: Alliance for Clinical Trials in Oncology

Sex: All·Age: 40 - 75·Accepts healthy volunteers

Code: NCT05334069·Recruiting

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Chemotherapy for the Treatment of Patients With Newly Diagnosed Very Low-Risk and Low Risk Fusion Negative Rhabdomyosarcoma

for Embryonal Rhabdomyosarcoma

165 locations incl. Birmingham

Sponsor: Children's Oncology Group

Sex: All·Age: Up to 21

Code: NCT05304585·Phase 3·Recruiting

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Colon Adjuvant Chemotherapy Based on Evaluation of Residual Disease

for Stage III Colon Cancer

1021 locations incl. Birmingham

Sponsor: NRG Oncology

Sex: All·Age: 18+

Code: NCT05174169·Phase 2, Phase 3·Recruiting

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A Study of the Drug Selinexor With Radiation Therapy in Patients With Newly-Diagnosed Diffuse Intrinsic Pontine (DIPG) Glioma and High-Grade Glioma (HGG)

for Malignant Glioma

Drug: Selinexor

109 locations incl. Birmingham

Sponsor: National Cancer Institute (NCI)

Sex: All·Age: 12 Months - 21

Code: NCT05099003·Phase 1, Phase 2·Recruiting

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Testing the Use of Chemotherapy After Surgery for High-Risk Pancreatic Neuroendocrine Tumors

for Metastatic Malignant Neoplasm in the Liver

446 locations incl. Anchorage

Sponsor: SWOG Cancer Research Network

Sex: All·Age: 18+

Code: NCT05040360·Phase 2·Recruiting

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The Pediatric Acute Leukemia (PedAL) Screening Trial - A Study to Test Bone Marrow and Blood in Children With Leukemia That Has Come Back After Treatment or Is Difficult to Treat - A Leukemia & Lymphoma Society and Children's Oncology Group Study

for Acute Lymphoblastic Leukemia

164 locations incl. Birmingham

Sponsor: PedAL BCU, LLC

Sex: All·Age: Up to 22

Code: NCT04726241·Phase 1, Phase 2·Recruiting

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Reaching Rural Cancer Survivors Who Smoke Using Text-Based Program

for Cigarette Smoking-Related Carcinoma

222 locations incl. Kingman

Sponsor: Alliance for Clinical Trials in Oncology

Sex: All·Age: 18+

Code: NCT05008848·Phase 3·Recruiting

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Thoracotomy Versus Thoracoscopic Management of Pulmonary Metastases in Patients With Osteosarcoma

for Metastatic Malignant Neoplasm in the Lung

219 locations incl. Birmingham

Sponsor: Children's Oncology Group

Sex: All·Age: Up to 50

Code: NCT05235165·Phase 3·Recruiting

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Five or Ten Year Colonoscopy for 1-2 Non-Advanced Adenomatous Polyps

for Adenocarcinoma of the Colon

472 locations incl. Fairbanks

Sponsor: NRG Oncology

Sex: All·Age: 45 - 70

Code: NCT05080673·Recruiting

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Testing the Addition of MEDI4736 (Durvalumab) to Chemotherapy Before Surgery for Patients With High-Grade Upper Urinary Tract Cancer

for Renal Pelvis and Ureter Urothelial Carcinoma

Drug: Durvalumab

258 locations incl. Kingman

Sponsor: National Cancer Institute (NCI)

Sex: All·Age: 18+

Code: NCT04628767·Phase 2, Phase 3·Recruiting

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Improving Adolescent and Young Adult Self-Reported Data in ECOG-ACRIN Trials

for Breast Cancer, NOS

347 locations incl. Fairbanks

Sponsor: Eastern Cooperative Oncology Group

Sex: All·Age: 18 - 39

Code: NCT05108298·Recruiting

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Immune Checkpoint Inhibitor Toxicity Risk Prediction in Solid Tumors

for Malignant Solid Neoplasm

843 locations incl. Anchorage

Sponsor: SWOG Cancer Research Network

Sex: All·Age: 18+

Code: NCT04871542·Recruiting

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A Study of a New Way to Treat Children and Young Adults With a Brain Tumor Called NGGCT

for Central Nervous System Nongerminomatous Germ Cell Tumor

149 locations incl. Birmingham

Sponsor: Children's Oncology Group

Sex: All·Age: 3 - 29

Code: NCT04684368·Phase 2·Recruiting

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

for Stage I Breast Cancer

812 locations incl. Birmingham

Sponsor: NRG Oncology

Sex: All·Age: 50 - 70

Code: NCT04852887·Phase 3·Recruiting

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APOLLO: A Randomized Phase II Double-Blind Study of Olaparib Versus Placebo Following Curative Intent Therapy in Patients With Resected Pancreatic Cancer and a Pathogenic BRCA1, BRCA2 or PALB2 Mutation

for Pancreatic Acinar Cell Carcinoma

452 locations incl. Anchorage

Sponsor: National Cancer Institute (NCI)

Sex: All·Age: 18+

Code: NCT04858334·Phase 2·Recruiting

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Testing What Happens When an Immunotherapy Drug (Pembrolizumab) is Given by Itself Compared to the Usual Treatment of Chemotherapy With Radiation After Surgery for Recurrent Head and Neck Squamous Cell Carcinoma

for Recurrent Head and Neck Squamous Cell Carcinoma

178 locations incl. Birmingham

Sponsor: National Cancer Institute (NCI)

Sex: All·Age: 18 - 79

Code: NCT04671667·Phase 2·Recruiting

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Comparing the Outcome of Immunotherapy-Based Drug Combination Therapy With or Without Surgery to Remove the Kidney in Metastatic Kidney Cancer, the PROBE Trial

for Metastatic Clear Cell Renal Cell Carcinoma

387 locations incl. Birmingham

Sponsor: SWOG Cancer Research Network

Sex: All·Age: 18+

Code: NCT04510597·Phase 3·Recruiting

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Testing Early Treatment for Patients With High-Risk Chronic Lymphocytic Leukemia (CLL) or Small Lymphocytic Leukemia (SLL), EVOLVE CLL/SLL Study

for Chronic Lymphocytic Leukemia

621 locations incl. Birmingham

Sponsor: National Cancer Institute (NCI)

Sex: All·Age: 18+

Code: NCT04269902·Phase 3·Recruiting

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Testing the Use of Combination Therapy in Adult Patients With Newly Diagnosed Multiple Myeloma, the EQUATE Trial

for Plasma Cell Myeloma

642 locations incl. Anchorage

Sponsor: ECOG-ACRIN Cancer Research Group

Sex: All·Age: 18+

Code: NCT04566328·Phase 3·Recruiting

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Testing the Addition of Radiation Therapy to the Usual Immune Therapy Treatment (Atezolizumab) for Extensive Stage Small Cell Lung Cancer, The RAPTOR Trial

for Extensive Stage Lung Small Cell Carcinoma

Drug: Atezolizumab

416 locations incl. Birmingham

Sponsor: National Cancer Institute (NCI)

Sex: All·Age: 18+

Code: NCT04402788·Phase 2, Phase 3·Recruiting

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A Study to Compare the Administration of Encorafenib + Binimetinib + Nivolumab Versus Ipilimumab + Nivolumab in BRAF-V600 Mutant Melanoma With Brain Metastases

for Acral Lentiginous Melanoma

Drug: Ipilimumab

331 locations incl. Birmingham

Sponsor: SWOG Cancer Research Network

Sex: All·Age: 18+

Code: NCT04511013·Phase 2·Recruiting

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Osimertinib With or Without Bevacizumab as Initial Treatment for Patients With EGFR-Mutant Lung Cancer

for Advanced Lung Non-Squamous Non-Small Cell Carcinoma

Drug: Bevacizumab

604 locations incl. Anchorage

Sponsor: National Cancer Institute (NCI)

Sex: All·Age: 18+

Code: NCT04181060·Phase 3·Recruiting

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A Study to Compare Blinatumomab Alone to Blinatumomab With Nivolumab in Patients Diagnosed With First Relapse B-Cell Acute Lymphoblastic Leukemia (B-ALL)

for Down Syndrome

Drug: Nivolumab

202 locations incl. Birmingham

Sponsor: National Cancer Institute (NCI)

Sex: All·Age: 1 - 30

Code: NCT04546399·Phase 2·Recruiting

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A Study of Combination Chemotherapy for Patients With Newly Diagnosed DAWT and Relapsed FHWT

for Anaplastic Kidney Wilms Tumor

177 locations incl. Birmingham

Sponsor: Children's Oncology Group

Sex: All·Age: Up to 30

Code: NCT04322318·Phase 2·Recruiting

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Treating Prostate Cancer That Has Come Back After Surgery With Apalutamide and Targeted Radiation Based on PET Imaging

for Biochemically Recurrent Prostate Carcinoma

Drug: Apalutamide

342 locations incl. Anchorage

Sponsor: ECOG-ACRIN Cancer Research Group

Sex: Male·Age: 18+

Code: NCT04423211·Phase 3·Recruiting

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A Study to Compare Two Surgical Procedures in Individuals With BRCA1 Mutations to Assess Reduced Risk of Ovarian Cancer

for Ovarian Carcinoma

539 locations incl. Birmingham

Sponsor: NRG Oncology

Sex: Female·Age: 35 - 50

Code: NCT04251052·Recruiting

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A Study to Compare Standard Chemotherapy to Therapy With CPX-351 and/or Gilteritinib for Patients With Newly Diagnosed AML With or Without FLT3 Mutations

for Acute Myeloid Leukemia

185 locations incl. Birmingham

Sponsor: Children's Oncology Group

Sex: All·Age: Up to 21

Code: NCT04293562·Phase 3·Recruiting

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Testing the Addition of a Type of Drug Called Immunotherapy to the Usual Chemotherapy Treatment for Non-small Cell Lung Cancer, an ALCHEMIST Treatment Trial (Chemo-IO [ACCIO])

for Lung Non-Small Cell Carcinoma

1150 locations incl. Anchorage

Sponsor: National Cancer Institute (NCI)

Sex: All·Age: 18+

Code: NCT04267848·Phase 3·Recruiting

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Ramucirumab and Paclitaxel or FOLFIRI in Advanced Small Bowel Cancers

for Metastatic Small Intestinal Adenocarcinoma

536 locations incl. Anchorage

Sponsor: SWOG Cancer Research Network

Sex: All·Age: 18+

Code: NCT04205968·Phase 2·Recruiting

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Testing the Addition of the Drug Apalutamide to the Usual Hormone Therapy and Radiation Therapy After Surgery for Prostate Cancer, INNOVATE Trial

for Prostate Adenocarcinoma

Drug: Apalutamide

345 locations incl. Phoenix

Sponsor: NRG Oncology

Sex: Male·Age: 18+

Code: NCT04134260·Phase 3·Recruiting

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Collection of Research Data and Samples From Patients Who Experience Immunotherapy Side Effects

for Malignancy

626 locations incl. Anchorage

Sponsor: Alliance for Clinical Trials in Oncology

Sex: All·Age: All ages

Code: NCT04242095·Recruiting

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Inotuzumab Ozogamicin and Post-Induction Chemotherapy in Treating Patients With High-Risk B-ALL, Mixed Phenotype Acute Leukemia, and B-LLy

for B Acute Lymphoblastic Leukemia

203 locations incl. Birmingham

Sponsor: Children's Oncology Group

Sex: All·Age: 365 Days - 25

Code: NCT03959085·Phase 3·Recruiting

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Lenalidomide, and Dexamethasone With or Without Daratumumab in Treating Patients With High-Risk Smoldering Myeloma

for Smoldering Plasma Cell Myeloma

Drug: Daratumumab

741 locations incl. Birmingham

Sponsor: ECOG-ACRIN Cancer Research Group

Sex: All·Age: 18+

Code: NCT03937635·Phase 3·Recruiting

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Comparing Proton Therapy to Photon Radiation Therapy for Esophageal Cancer

for Clinical Stage I Esophageal Adenocarcinoma AJCC v8

95 locations incl. Phoenix

Sponsor: NRG Oncology

Sex: All·Age: 18+

Code: NCT03801876·Phase 3·Recruiting

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Testing the Effectiveness of Two Immunotherapy Drugs (Nivolumab and Ipilimumab) With One Anti-cancer Targeted Drug (Cabozantinib) for Rare Genitourinary Tumors

for Bladder Adenocarcinoma

Drug: Cabozantinib

578 locations incl. Birmingham

Sponsor: National Cancer Institute (NCI)

Sex: All·Age: 18+

Code: NCT03866382·Phase 2·Recruiting

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Inotuzumab Ozogamicin and Blinatumomab With or Without Ponatinib in Treating Patients With Newly Diagnosed, Recurrent, or Refractory CD22-Positive B-Lineage Acute Lymphoblastic Leukemia

for B Acute Lymphoblastic Leukemia, Philadelphia Chromosome Negative

275 locations incl. Birmingham

Sponsor: National Cancer Institute (NCI)

Sex: All·Age: 18+

Code: NCT03739814·Phase 2·Recruiting

Apply to this trial