secwatch.observer — SEC 8-K summary ====================================== Issuer: Arcturus Therapeutics Holdings Inc. (ARCT) CIK: 0001768224 Form: 8-K Filed at: 2022-12-13T23:59:59+00:00 Accession: 0001193805-22-001712 Event type: other_material Sentiment: positive Materiality: 0.75 Item codes: 7.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Arcturus' COVID-19 vaccine ARCT-154 enters Phase III trial in Japan; CSL collaboration effective -------------------------------------------------------------------------------- - Meiji Seika Pharma initiated a Phase III trial of ARCT-154 (self-amplifying mRNA COVID-19 vaccine) in Japan with 780 participants; half receive ARCT-154 as a booster. - The trial will evaluate non-inferiority of ARCT-154 as a booster series compared to a comparator group. - CSL Seqirus announced that the previously disclosed collaboration agreement (Nov 1, 2022) with Arcturus became effective on December 8, 2022. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1768224/000119380522001712/0001193805-22-001712-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1768224/000119380522001712/e618105_8k-arct.htm HTML page: https://secwatch.observer/filing/0001193805-22-001712 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer