Emergent BioSolutions's Single-Dose Chikungunya Vaccine Candidate Effective Even After Two Years of Vaccination

  • Emergent BioSolutions Inc EBS has announced two-year persistence data from its Phase 2 study evaluating its investigational chikungunya virus, virus-like particle (CHIKV VLP) vaccine candidate.
  • The CHIKV VLP vaccine is the only single-dose VLP-based vaccine currently in clinical development for active immunization against chikungunya disease, the company said.
  • Two years post-vaccination, serum neutralizing antibodies (SNA) responses were 19 times higher than pre-vaccination titers following a single adjuvanted 40 µg dose.
  • All subjects in the single-dose regimen remained seropositive at their one-year and two-year visits.
  • The vaccine candidate was well-tolerated, and no significant vaccine-related safety concerns were identified.
  • The majority of solicited adverse events were mild or moderate, and the most frequent were local injection site pain.
  • The company will publish the results of this study in the near term.
  • The CHIKV VLP vaccine candidate received the FDA Fast Track designation in May 2018 and EMA PRIME designation in September 2019.
  • Chikungunya virus is spread to people by infected mosquitoes.
  • Price Action: EBS shares are up 2.44% at $57.99 in the premarket session on the last check Wednesday.
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Posted In: BiotechNewsHealth CareGeneralBriefsChikungunya
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