{"schema_version":"secwatch.filing_event.v1","accession":"0001628280-25-048827","form_type":"8-K","ticker":"VTGN","cik":"0001411685","company_name":"Vistagen Therapeutics, Inc.","filed_at":"2025-11-04T23:59:59+00:00","discovered_at":"2026-05-14T18:02:39.343085+00:00","generated_at":"2026-05-17T00:35:28.734675+00:00","sec_items":["7.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Vistagen completes PALISADE-3 Phase 3 trial; topline results due by year end","bullets":["Last patient completed randomized, double-blind, placebo-controlled portion of PALISADE-3 for fasedienol in social anxiety disorder; open-label extension ongoing.","Topline results for PALISADE-3 expected in Q4 2025; PALISADE-4 topline anticipated in H1 2026.","PALISADE-3 uses same design as positive PALISADE-2 trial (SUDS primary endpoint); FDA Fast Track designation in place.","Successful PALISADE-3 or -4 could support NDA submission for first acute treatment for social anxiety disorder (over 30M patients)."],"urls":{"canonical":"https://secwatch.observer/filing/0001628280-25-048827","json":"https://secwatch.observer/filing/0001628280-25-048827.json","markdown":"https://secwatch.observer/filing/0001628280-25-048827.md","text":"https://secwatch.observer/filing/0001628280-25-048827.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1411685/000162828025048827/0001628280-25-048827-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1411685/000162828025048827/vtgn-20251103.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T00:35:28.734675+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}