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Study identifier: NCT06567782 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

A Study of Neoadjuvant Dostarlimab Plus Capecitabine Plus Oxaliplatin (CAPEOX) Vs CAPEOX With Previously Untreated T4N0 or Stage III Mismatch Repair Proficient (MMRp)/Microsatellite Stable (MSS) Colon Cancer

Condition: Neoplasms, Colon  ·  Sponsor: GlaxoSmithKline

PhasePhase 2
Planned participants120
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

The main goal of this study is to test a new treatment approach for colon cancer. The treatment involves dostarlimab along with a specific type of chemotherapy called CAPEOX (short for "capecitabine + oxaliplatin") to check if using these two together works better than using just CAPEOX by itself. This treatment is given before any surgery takes place; a method referred to as "neoadjuvant therapy." . The aim is to see if this new approach can show early signs of effectiveness in treating participants with a specific type of colon cancer known as mismatch repair proficient/ microsatellite stable (MMRp/MSS), where the cells have normal repair systems and stable DNA sequences. This study will also look at specific signs in the blood and tumor to see if they can help predict how well the treatment is working. This could help better understand how dostarlimab contributes to the response of the disease to treatment.

This description comes directly from the study's public registry record.

Talk to the study team

US GSK Clinical Trials Call Center  ·  877-379-3718  ·  GSKClinicalSupportHD@gsk.com

EU GSK Clinical Trials Call Center  ·  +44 (0) 20 89904466  ·  GSKClinicalSupportHD@gsk.com

Always discuss trial participation with your own doctor first.

Locations (33)

GSK Investigational SiteAalst, BelgiumRecruiting
GSK Investigational SiteBonheiden, BelgiumRecruiting
GSK Investigational SiteBrussels, BelgiumRecruiting
GSK Investigational SiteBrussels, BelgiumRecruiting
GSK Investigational SiteGhent, BelgiumRecruiting
GSK Investigational SiteLeuven, BelgiumRecruiting
GSK Investigational SiteLiège, BelgiumRecruiting
GSK Investigational SiteLiège, BelgiumRecruiting
GSK Investigational SiteOstend, BelgiumRecruiting
GSK Investigational SiteRoeselare, BelgiumRecruiting
GSK Investigational SiteTurnhout, BelgiumRecruiting
GSK Investigational SiteMilan, ItalyRecruiting

+ 21 more locations — full list on the registry record.

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Source record: clinicaltrials.gov/study/NCT06567782