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Invivyd Provides Detailed Virology Data and Analysis of SARS-CoV-2 Structural Biology Predicting Anticipated Neutralization Activity for PEMGARDA™ (pemivibart)
Independent evaluation of KP.3.1.1 and LB.1 variants shows in vitro pseudovirus neutralization potency of PEMGARDA in-line with prior variants
About this update from Invivyd, Inc.
[{"type":"text","content":"Independent evaluation of KP.3.1.1 and LB.1 variants shows in vitro pseudovirus neutralization potency of PEMGARDA in-line with prior variants testedProprietary, ongoing SARS-CoV-2 spike analyses demonstrate consistent structural stability of the pemivibart binding site to date, which has routinely predicted sustained pemivibart in vitro neutralization activity Potential emerging variants, such as XEC and LP.1, encode mutations that are distal from the pemivibart binding site, and, therefore, are also not expected to meaningfully alter pemivibart activity; routine neutralization analysis will follow in ordinary course to assess potential for epistasis or allostery WALTHAM, Mass., Sept. 23, 2024 (GLOBE NEWSWIRE) -- Invivyd, Inc. (Nasdaq: IVVD), a biopharmaceutical company devoted to delivering protection from serious viral infectious diseases, today provided detailed virology data supporting previously communicated neutralization activity results, along with a genetic and structural analysis of past and present SARS-CoV-2 variant spike proteins, including the established molecular target of pemivibart. As part of Invivyd’s ongoing monitoring of antiviral activity, Invivyd contracts with LabCorp’s Monogram Biosciences lab to provide independent, robust virology assessments in a consistent lineal chain that allows for consideration of potential changing pemivibart potency as SARS-CoV-2 evolves. Pemivibart potency against contemporary viruses KP.3.1.1 and LB.1 remains in-line with the totality of predominant variants dating back to 2022, including isolates identified during the conduct of the CANOPY Phase 3 clinical trial from late 2023 to early 2024. Data Table 1, below, provides relevant comparative values drawn from the PEMGARDA Healthcare Providers Fact Sheet. “Quantitative neutralization assays exhibit marked intrinsic variability. Since discovery, pemivibart has exhibited impressively stable neutralization results across a wide range of SARS-CoV-2 variants, including and through contemporary variants tested,” said Robert Allen, Ph.D., Chief Scientific Officer of Invivyd. “The values we observe thus far generally fall within the expected variability of the assay systems we employ.” Invivyd also provided an update to ongoing structural analysis showing no meaningful mutational change in the pemivibart binding site since the Omic...