Clinical trialNCT05855200RecruitingPhase 3Interventional

Study of Perioperative Dostarlimab in Participants With Untreated T4N0 or Stage III dMMR/MSI-H Resectable Colon Cancer

SponsorGlaxoSmithKlineEnrollment892Colonic NeoplasmsNeoplasms, Colon

View the registry record on ClinicalTrials.gov

Summary

The registered summary isn't in our current data snapshot. Read it on the ClinicalTrials.gov record ↗. Why? →

Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

GSK Clinical Trials
GlaxoSmithKline
Study Director
clinicaltrials.gov ↗

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

266 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

Argentina

Gsk Investigational Site
Buenos Aires, Argentina
Dolores Gomez Bradley
Recruiting
Gsk Investigational Site
Buenos Aires, Argentina
Guillermo Mendez
Recruiting
Gsk Investigational Site
Buenos Aires, Argentina
Patricio Servienti
Recruiting
Gsk Investigational Site
Capital Federal, Argentina
Federico Esteso
Recruiting
Gsk Investigational Site
Ciudad Autonoma de Buenos Aire, Argentina
Completed
Gsk Investigational Site
Córdoba, Argentina
Chong Hun Kim
Recruiting
Gsk Investigational Site
Mar del Plata, Argentina
Marcos Flores
Recruiting
Gsk Investigational Site
Rosario, Argentina
Miriam Raimondo
Recruiting
Gsk Investigational Site
San Miguel de Tucumán, Argentina
Ruben Segovia
Recruiting
Gsk Investigational Site
Santa Fe, Argentina
Cesar Blajman
Recruiting

Australia

Gsk Investigational Site
Newcastle, New South Wales, Australia
Jordan Cohen
Recruiting
Gsk Investigational Site
St Leonards, New South Wales, Australia
Withdrawn
Gsk Investigational Site
Woolangabba, Queensland, Australia
Kate Roberts
Recruiting
Gsk Investigational Site
Heidelberg, Victoria, Australia
Niall Tebbutt
Recruiting
Gsk Investigational Site
Melbourne, Victoria, Australia
Withdrawn

Belgium

Gsk Investigational Site
Aalst, Belgium
Koenraad A.M. Hendrickx
Recruiting
Gsk Investigational Site
Brussels, Belgium
Francesco Sclafani
Recruiting
Gsk Investigational Site
Brussels, Belgium
Marc Van den Eynde
Recruiting
Gsk Investigational Site
Edegem, Belgium
Hans Prenen
Recruiting
Gsk Investigational Site
Ghent, Belgium
Karen Geboes
Recruiting
Gsk Investigational Site
Leuven, Belgium
Sabine Tejpar
Recruiting
Gsk Investigational Site
Liège, Belgium
Joëlle Collignon
Recruiting
Gsk Investigational Site
Roeselare, Belgium
Sofie De Meulder
Recruiting

Brazil

Gsk Investigational Site
Barretos, Brazil
Arinilda Bragagnoli
Recruiting
Gsk Investigational Site
Belém, Brazil
Bruno Fernandes
Recruiting
Gsk Investigational Site
Campo Grande, Brazil
Cristina Sampaio
Recruiting
Gsk Investigational Site
Lages, Brazil
Maite de Liz Vassen Schurmann
Recruiting
Gsk Investigational Site
Natal, Brazil
Sulene Oliveira
Recruiting
Gsk Investigational Site
Porto Alegre, Brazil
Caroline da Silva
Recruiting
Gsk Investigational Site
Salvador, Brazil
Livia Maria Andrade
Recruiting
Gsk Investigational Site
São José do Rio Preto, Brazil
Kathia Cristina Abdalla
Recruiting
Gsk Investigational Site
São Paulo, Brazil
Rodrigo Taboada
Recruiting
Gsk Investigational Site
São Paulo, Brazil
Maria Ignez Braghiroli
Recruiting
Gsk Investigational Site
Teresina, Brazil
Claudio Lima Rocha
Recruiting
Gsk Investigational Site
Vitória, Brazil
GLAUCIO BERTOLLO
Recruiting

Canada

Gsk Investigational Site
Edmonton, Alberta, Canada
Withdrawn
Gsk Investigational Site
Halifax, Nova Scotia, Canada
Katerina Neumann
Recruiting
Gsk Investigational Site
Ottawa, Ontario, Canada
Rebecca Auer
Recruiting
Gsk Investigational Site
Toronto, Ontario, Canada
Eric Chen
Recruiting
Gsk Investigational Site
Montreal, Quebec, Canada
Jamil Asselah
Recruiting

226 more sites on the registry record.ClinicalTrials.gov ↗

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

No drug or biological interventions are in our data for this study — it may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start: 1 Aug 2023
Primary completion: 19 Mar 2029
Completion: 27 Mar 2031
Last update posted: 23 Jan 2026
Registered enrollment: 892
Registry id: NCT05855200

Cross-registrations

EU-CTR / CTIS (EudraCT)2023-503265-27-00

clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 12 Jul 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.