Core Viewpoint - Invivyd, Inc. has received guidance from the U.S. FDA regarding the LIBERTY Phase 3 clinical trial for VYD2311, a monoclonal antibody candidate aimed at preventing COVID-19, which will compare its safety and immunologic profile against mRNA COVID vaccines [1][2][5] Group 1: LIBERTY Trial Overview - The LIBERTY trial will assess the safety and immunologic profile of VYD2311 compared to commercially available mRNA COVID vaccines, including the simultaneous administration of both [1][5] - The trial is designed to provide insights into the safety and tolerability of monoclonal antibody-mediated prophylaxis versus mRNA vaccines, building on the previous DECLARATION trial [2][5] - Total enrollment for the LIBERTY trial is expected to be around 210 participants [7] Group 2: Background on VYD2311 - VYD2311 is a novel monoclonal antibody candidate developed to address the need for new COVID-19 prevention options, with a focus on delivering effective titer levels through intramuscular administration [4][6] - The antibody was engineered using Invivyd's proprietary technology platform, optimized for neutralizing contemporary virus lineages [6] Group 3: Regulatory Context and Safety Monitoring - The FDA has requested specific monitoring for adverse events of special interest, particularly myocarditis and pericarditis, in the LIBERTY trial due to concerns raised during the COVID pandemic regarding mRNA vaccines [2][5] - No similar monitoring requests have been made for other Invivyd trials that do not include an mRNA vaccine arm [2][5] Group 4: DECLARATION Trial Details - The DECLARATION trial is a Phase 3, randomized, triple-blind, placebo-controlled study evaluating the efficacy and safety of VYD2311 in preventing symptomatic COVID-19, with an expected enrollment of 1770 participants [3][8] - Participants will receive either a single or monthly dose of VYD2311 via intramuscular injection, compared to a placebo [3][8]