Clinical Trials at Cancer Care Center of O'Fallon

As of July 2026, 88 paid clinical trials are recruiting at Cancer Care Center of O'Fallon, located at Cancer Care Specialists of IL, Cancer Care Center of O'Fallon, 321 Regency Park, O'Fallon, IL 62269, phone (618) 416-7970 in O'Fallon, Illinois. 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: July 17, 2026.

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88 clinical trials at Cancer Care Center of O'Fallon

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Ramucirumab and Paclitaxel or FOLFIRI in Advanced Small Bowel Cancers

for Metastatic Small Intestinal Adenocarcinoma

Sites in O'Fallon, Alton +397 more locations

Sponsor: SWOG Cancer Research Network

Sex: All·Age: 18+

Code: NCT04205968·Phase 2·Recruiting·Listed Dec 2019

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Myopenia and Mechanisms of Chemotherapy Toxicity in Older Adults With Colorectal Cancer

for Colorectal Cancer

Sites in O'Fallon, Mount Vernon +140 more locations

Sponsor: Wake Forest University Health Sciences

Sex: All·Age: 60+

Code: NCT03998202·Recruiting·Listed Jun 2019

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Testing Whether the Addition of Carboplatin Chemotherapy to Cabazitaxel Chemotherapy Will Improve Outcomes Compared to Cabazitaxel Alone in People With Castrate-Resistant Prostate Cancer That Has Spread Beyond the Prostate to Other Parts of the Body

for Castration-Resistant Prostate Carcinoma

Sites in O'Fallon, Centralia +172 more locations

Sponsor: SWOG Cancer Research Network

Sex: Male·Age: 18+

Code: NCT06470243·Phase 3·Recruiting·Listed Jun 2024

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Testing if High Dose Radiation Only to the Sites of Brain Cancer Compared to Whole Brain Radiation That Avoids the Hippocampus is Better at Preventing Loss of Memory and Thinking Ability

for Metastatic Lung Small Cell Carcinoma

Sites in O'Fallon, Centralia +146 more locations

Sponsor: NRG Oncology

Sex: All·Age: 18+

Code: NCT04804644·Phase 3·Recruiting·Listed Mar 2021

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S1501 Dual Observational and Randomized Cohort Study of Patients With Metastatic HER-2+ Breast Cancer at Risk of Cardiac Toxicity

for Cardiotoxicity

Sites in O'Fallon, Decatur +142 more locations

Sponsor: SWOG Cancer Research Network

Sex: All·Age: 18+

Code: NCT03418961·Phase 3·Recruiting·Listed Feb 2018

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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

Sites in O'Fallon, Alton +301 more locations

Sponsor: SWOG Cancer Research Network

Sex: All·Age: 18+

Code: NCT04511013·Phase 2·Recruiting·Listed Aug 2020

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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

Sites in O'Fallon, Alton +338 more locations

Sponsor: SWOG Cancer Research Network

Sex: All·Age: 18+

Code: NCT04510597·Phase 3·Recruiting·Listed Aug 2020

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Vitamin D for Prostate Endocrine Therapy

for Stage I Prostate Cancer AJCC v8

Sites in O'Fallon, Decatur +49 more locations

Sponsor: University of Rochester

Sex: Male·Age: 50+

Code: NCT05838716·Phase 3·Recruiting·Listed May 2023

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