ArticleScientific reports2025
Accelerated vaccine process development by orthogonal protein characterization.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors.
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Abstract
The COVID-19 pandemic altered the vaccine development paradigm with accelerated timelines from concept through clinical safety and efficacy. Characterization and release assays for vaccine programs were developed under similar time constraints to support bioprocess development, scaleup and formulation. During the development of these vaccines, SARS-CoV-2 variants of concern (VOCs) emerged requiring integration of additional antigens into the target product profile. Biochemical testing to support the addition of new antigen variants (identity, quantity, antigenicity/potency) needed substantial re-development. Here we present a reversed-phase high-performance liquid-chromatography method for antigen purity with orthogonal identification characterization comprising of Simple Wes and liquid-chromatography tandem mass spectrometry (LC/MS/MS) to support accelerated process development for recombinant protein vaccines. This suite of assays was deployed to support rapid, scientific decision-making enabling the transition from completion of a placebo-controlled dose-ranging Phase 2 study to the start of the global Phase 3 safety and efficacy trial in less than 2 weeks.
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