Vaxxinity Reports Fourth Quarter and Full-Year 2023 Financial Results and Provides Corporate Updates

Vaxxinity, Inc.
Vaxxinity, Inc.

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CAPE CANAVERAL, Fla., March 27, 2024 (GLOBE NEWSWIRE) -- Vaxxinity, Inc. (Nasdaq: VAXX), a U.S. company pioneering the development of a new class of immunotherapeutic vaccines, today reported financial results for the fourth quarter and full year ended December 31, 2023, and provided a corporate update.

“2024 will prove to be a critical year for Vaxxinity as we refocus our efforts on our neurodegeneration programs and move closer to obtaining our company’s first approval,” said Mei Mei Hu, CEO of Vaxxinity. “Just this month, we presented exploratory biomarker data from our Phase 1 trial of UB-312 in Parkinson’s patients: a first of its kind demonstrating target engagement of toxic alpha-synuclein in the CNS and a potential correlation with clinical efficacy. This represents a major step for our platform in neurodegeneration where the safe engagement of aberrant protein targets in the CNS remains critical, and new hope for the Parkinson’s community. We also seek to advance UB-311, our anti-Aβ Alzheimer’s candidate, as we resume dialogue with regulatory authorities and partners. Finally, we’re looking forward to the readout from the Phase 1 trial of VXX-401, our vaccine candidate for hypercholesterolemia, as well as the potential marketing authorization of UB-612, our heterologous booster vaccine candidate for COVID-19.”

2023 and Recent Clinical Pipeline Developments

UB-312 in Parkinson’s disease (PD) and other synucleinopathies

  • UB-312 targets toxic forms of aggregated α-synuclein (aSyn).

  • Two exploratory CSF biomarkers show promise as measures of disease progression:

    • aggregated aSyn, as measured by an aSyn Seed Amplification Assay developed in collaboration with Mayo Clinic, UTHealth Houston, and Amprion, with funding from The Michael J. Fox Foundation.

    • phosphorylated aSyn (pS129-aSyn).

  • PD patients with UB-312-induced antibodies in CSF had significantly less aSyn aggregation (p = 0.0183) and pS129-aSyn (p = 0.0351) as compared to placebo.

  • PD patients with UB-312-induced antibodies in CSF showed significant improvement in the clinical MDS-UPDRS II activities of daily living scale as compared to placebo (p = 0.0062).

  • Anti-aSyn antibody titer levels in CSF correlate with reduction in aggregated aSyn, which correlated with improvement in MDS-UPDRS II.

  • In March 2024, JC Dodart, Chief Scientific Officer, presented these exploratory analyses at AD/PD 2024 in Lisbon, Portugal.

VXX-401 in hypercholesterolemia

  • VXX-401 targets proprotein convertase subtilisin/kexin type 9 (PCSK9) to reduce LDL cholesterol.

  • All six cohorts of the Phase 1 trial of VXX-401 are fully enrolled.

  • In February 2024, results from multiple preclinical studies of VXX-401 in non-human primates, demonstrating robust, sustained reduction in LDL-C, were published in the Journal of Lipid Research.

  • The company anticipates topline Phase 1 data by mid-2024.