secwatch.observer — SEC 8-K summary ====================================== Issuer: Theriva Biologics, Inc. (TOVX) CIK: 0000894158 Form: 8-K Filed at: 2025-10-14T23:59:59+00:00 Accession: 0001104659-25-098882 Event type: other_material Sentiment: positive Materiality: 0.70 Item codes: 7.01, 8.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Theriva VIRAGE Phase 2b: VCN-01+GA OS 10.8mo (HR0.57, p=0.055), PFS 7.0mo (HR0.55, p=0.011) -------------------------------------------------------------------------------- - In FAS population, VCN-01 + GA improved median OS to 10.8 mo vs 8.6 mo (HR 0.57, p=0.055) and PFS to 7.0 vs 4.6 mo (HR 0.55, p=0.011). - Patients receiving 2 VCN-01 doses starting GA cycle 4 had OS 14.8 vs 11.6 mo (HR 0.44, p=0.046) and PFS 11.2 vs 7.4 mo (HR 0.48, p=0.017). - VCN-01 well tolerated; all 13 related serious adverse events resolved; common: flu-like symptoms (13.2%), transaminase increase (5.7%). - Data to be presented at ESMO 2025 mini oral session on Oct 20; abstract published. Study met primary endpoints. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/894158/000110465925098882/0001104659-25-098882-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/894158/000110465925098882/tm2528558d1_8k.htm HTML page: https://secwatch.observer/filing/0001104659-25-098882 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer