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A Phase 2, open label, randomized study of neoadjuvant dostarlimab plus CAPEOX versus CAPEOX in participants with previously untreated T4N0 or Stage III MMRp/ MSS colon cancer

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2024-513441-36-00
Acronym
222892
Enrollment
170
Registered
2024-11-06
Start date
2024-11-27
Completion date
Unknown
Last updated
2025-12-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

MMRp/ MSS colon cancer

Brief summary

Proportion of participants with major pathological response determined by local assessment with protocol specific training/methods, defined as≤10% RVT., Frequency and severity of treatment emergent AEs, SAEs, imAEs, and AEs leading to death or discontinuation of study intervention.

Detailed description

Proportion of participants for whom primary tumour resection is not excluded by either: o Disease progression precluding surgery. o Treatment related toxicity that results in the participant not being suitable for surgery., Proportion of participants with pathological response determined by local assessment in the following categories: o Complete pathologic response (cPR) (0% RVT) o Major pathological response excluding cPR (>0% & ≤10% RVT) o Partial pathologic response (>10% & ≤50% RVT) o Negligible pathologic response (>50% RVT)

Interventions

DRUGCAPECITABINE ZENTIVA 150 mg
DRUGcomprimé pelliculé
DRUGOxaliplatin Bendalis 5 mg/ml Konzentrat zur Herstellung einer Infusionslösung
DRUGCapecitabine Zentiva 150 mg filmdragerade tabletter
DRUGJEMPERLI 500 mg concentrate for solution for infusion

Sponsors

Glaxosmithkline Research & Development Limited
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Proportion of participants with major pathological response determined by local assessment with protocol specific training/methods, defined as≤10% RVT., Frequency and severity of treatment emergent AEs, SAEs, imAEs, and AEs leading to death or discontinuation of study intervention.

Secondary

MeasureTime frame
Proportion of participants for whom primary tumour resection is not excluded by either: o Disease progression precluding surgery. o Treatment related toxicity that results in the participant not being suitable for surgery., Proportion of participants with pathological response determined by local assessment in the following categories: o Complete pathologic response (cPR) (0% RVT) o Major pathological response excluding cPR (>0% & ≤10% RVT) o Partial pathologic response (>10% & ≤50% RVT) o Negligible pathologic response (>50% RVT)

Countries

Belgium, Italy, Spain

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026