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Study identifier: NCT06353854 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Prospective National Cohort Evaluating Predictive Biomarkers of Resistance to Immunotherapy in Patients With MSI/dMMR Metastatic Colorectal Cancer (CORESIM)

Condition: Colorectal Cancer Metastatic · Microsatellite Instability-High Colorectal Cancer  ·  Sponsor: Federation Francophone de Cancerologie Digestive

PhaseN/A
Planned participants600
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

The Keynote 117 phase III trial demonstrated the superiority of pembrolizumab (anti-PD1 monoclonal antibody) versus chemotherapy +/- targeted therapy in first-line treatment of dMMR/MSI metastatic colorectal cancer (mCRC). However, primary resistance to pembrolizumab was observed in approximately 20-30% of patients treated in the Keynote 177 study. Therefore, the identification of biomarkers predictive of resistance to immunotherapy for dMMR/MSI mCRC is necessary to better select patients who benefit the most from immunotherapy, and those for whom other therapeutic approaches should be favored.

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

Talk to the study team

Aziz ZAANAN, MD, PhD  ·  03 80 66 80 13  ·  aziz.zaanan@aphp.fr

Leathicia NDONG, MD  ·  0661804266  ·  cohorte.coresim@ffcd.fr

Always discuss trial participation with your own doctor first.

Locations (20)

Ch - Centre Hospitalier de La Côte BasqueBayonne, FranceNot Yet Recruiting
Ch - Ch BeauvaisBeauvais, FranceNot Yet Recruiting
CH Jean MinjozBesançon, FranceNot Yet Recruiting
Polyclinique Saint PrivatBoujan-sur-Libron, FranceRecruiting
Ch - DuchenneBoulogne-sur-Mer, FranceNot Yet Recruiting
Ch - Centre Hospitalier Metropole SavoieChambéry, FranceNot Yet Recruiting
Ch - Centre Hospitalier de CholetCholet, FranceNot Yet Recruiting
CH - CompiegneCompiègne, FranceNot Yet Recruiting
Ch - Chd VendéeLa Roche-sur-Yon, FranceNot Yet Recruiting
CH - Louis PasteurLe Coudray, FranceNot Yet Recruiting
Centre Hospitalier Regional et Universitaire de LilleLille, FranceRecruiting
CH Saint Joseph - Saint LucLyon, FranceNot Yet Recruiting

+ 8 more locations — full list on the registry record.

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Source record: clinicaltrials.gov/study/NCT06353854