45
Participants
Start Date
November 10, 2022
Primary Completion Date
April 16, 2025
Study Completion Date
September 30, 2026
Adenoviral Tumor-specific Neoantigen Priming Vaccine GAd-209-FSP
Given IM
Biospecimen Collection
Undergo blood sample collection
Endoscopic Biopsy
Undergo endoscopy with biopsy
MVA Tumor-specific Neoantigen Boosting Vaccine MVA-209-FSP
Given IM
Questionnaire Administration
Ancillary studies
Fox Chase Cancer Center, Philadelphia
M D Anderson Cancer Center, Houston
City of Hope Comprehensive Cancer Center, Duarte
University of Puerto Rico, San Juan
National Cancer Institute (NCI)
NIH