secwatch.observer — SEC 8-K summary ====================================== Issuer: ARVINAS, INC. (ARVN) CIK: 0001655759 Form: 8-K Filed at: 2026-03-18T23:59:59+00:00 Accession: 0001628280-26-019026 Event type: other_material Sentiment: positive Materiality: 0.70 Item codes: 7.01, 8.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Arvinas reports Phase 1 ARV-102 shows >50% LRRK2 degradation in CSF in Parkinson's patients -------------------------------------------------------------------------------- - ARV-102 achieved approximately 50% or greater LRRK2 reduction in CSF across all doses (20–80 mg) by day 14, maintained through day 28. - Treatment was well tolerated; all adverse events were mild, with no serious adverse events, discontinuations, or deaths. - Endolysosomal and neuroinflammatory biomarkers (e.g., CD68, GPNMB) were reduced in cerebrospinal fluid. - Mean plasma half-life of ARV-102 was 68 hours; CSF exposure increased dose-dependently indicating brain penetration. - Company plans Phase 1b trial in progressive supranuclear palsy in Q2 2026, with potential registrational trial in late 2026. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1655759/000162828026019026/0001628280-26-019026-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1655759/000162828026019026/arvn-20260318.htm HTML page: https://secwatch.observer/filing/0001628280-26-019026 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer