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Study identifier: NCT03953235 Synced from ClinicalTrials.gov · July 27, 2026
● Completed

A Study of a Personalized Cancer Vaccine Targeting Shared Neoantigens

Condition: Non-Small Cell Lung Cancer · Colorectal Cancer · Pancreatic Cancer  ·  Sponsor: Gritstone bio, Inc.

PhasePhase 1/Phase 2
Planned participants39
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

The purpose of this study is to evaluate the dose, safety, immunogenicity and early clinical activity of GRT-C903 and GRT-R904, a neoantigen-based therapeutic cancer vaccine, in combination with immune checkpoint blockade, in patients with advanced or metastatic non-small cell lung cancer, microsatellite stable colorectal cancer, pancreatic cancer, and shared neoantigen-positive tumors. Based on the Phase 1 data, an updated vaccine candidate (SLATE-KRAS or version 2) was developed that removed 16 of the 20 mutations included in the original vaccine (version 1) and solely targets KRAS mutations.

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

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Contact details are listed per location below or on the registry record.

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Locations (12)

Mayo Clinic ArizonaPhoenix, Arizona, United States
UCLA Medical CenterSanta Monica, California, United States
Mayo Clinic FloridaJacksonville, Florida, United States
University of Chicago Medicine, Comprehensive Cancer CenterChicago, Illinois, United States
Mayo Clinic RochesterRochester, Minnesota, United States
Columbia University Medical Center, Herbert Irving Comprehensive Cancer CenterNew York, New York, United States
Memorial Sloan Kettering Cancer CenterNew York, New York, United States
The Ohio State University Comprehensive Cancer CenterColumbus, Ohio, United States
Fox Chase Cancer CenterPhiladelphia, Pennsylvania, United States
Tennessee OncologyNashville, Tennessee, United States
MD Anderson Cancer CenterHouston, Texas, United States
Virginia Cancer SpecialistsFairfax, Virginia, United States

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Source record: clinicaltrials.gov/study/NCT03953235