COVID-19 Vaccine-Mediated Enhanced Disease (VMED)
COVID-19 Vaccine-Mediated Enhanced Disease and Vaccine Effectiveness in the Vaccine Safety Datalink VSD Study #1341 PROTOCOL VERSION: 1.2 DATE: 27 April 2021 KEY STUDY STAFF Marshfield Clinic Research Institute (MCRI) Principal Investigator Edward Belongia, MD Co-Investigators Thomas Boyce, MD, MPH James Donahue, DVM, PhD Dave McClure, PhD Biostatistician Burney Kieke Jr., MS Project Managers Kayla Hanson, MPH Hannah Berger, MPH Data Manager Erica Scotty, MS Project Administrator Bobbi Bradley, MPH, MBA Vaccine Safety Datalink Collaborating Site Investigators and Project Managers Denver Health Joshua Williams, MD Jonathan Block, MEd, PMP Harvard Pilgrim Katherine Yih, PhD, MD Jessica LeBlanc, MPH HealthPartners Malini DeSilva, MD, MPH Leslie Kuckler, MPH Kaiser Permanente Matt Daley, MD Colorado Jo Ann Shoup, PhD Kaiser Permanente Nicky Klein, MD, PhD Northern California Kristin Goddard, MPH (AIM 2) Kaiser Permanente Stephanie Irving, MHS Northwest Tia Kauffman, MPH Kaiser Permanente Bruno Lewin, MD Southern California Cheryl Carlson, MPH (AIM 2) Denison Ryan, MPH Kaiser Permanente Lisa Jackson, MD, MPH Washington Erika Kiniry, MPH Centers for Disease Control and Prevention (CDC) Investigators Immunization Safety Jonathan Duffy, MD, MPH Office Michael McNeil, MD, MPH COVID-19 VE Team TBN Page ii PROTOCOL CHANGE HISTORY Version/Date Summary of Change 1.0/26 March 2021 Original protocol 1.1/21 April 2021 Minor revisions to eligibility criteria, exposure classification, and covariates 1.2/27 April 2021 Minor revisions to data lag and Aim 2 endpoints PROTOCOL SYNOPSIS Title: COVID-19 VMED and Vaccine Effectiveness in the VSD Short name: COVID-19 VMED/VE Study Rationale Vaccine-mediated enhanced disease (VMED) can result from immune complex formation and Th2 biased cellular immune response when vaccinated individuals become infected with the target pathogen.
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