{"schema_version":"secwatch.filing_event.v1","accession":"0001558370-25-011954","form_type":"8-K","ticker":"AVBP","cik":"0001868279","company_name":"ArriVent BioPharma, Inc.","filed_at":"2025-09-09T23:59:59+00:00","discovered_at":"2026-05-14T18:02:45.454357+00:00","generated_at":"2026-05-17T07:21:53.678382+00:00","sec_items":["7.01","8.01","9.01"],"event_type":"other_material","sentiment":"positive","materiality_score":0.8,"calibrated_materiality_score":0.8,"confidence":"high","headline":"ArriVent reports 16.0-month mPFS with firmonertinib in EGFR PACC NSCLC Phase 1b final analysis","bullets":["Median PFS 16.0 months by BICR with firmonertinib 240 mg once daily in first-line EGFR PACC NSCLC.","Confirmed ORR 68.2% at 240 mg; median DOR 14.6 months by BICR; responses across multiple PACC mutation types.","CNS confirmed ORR 42.9% (6/14) with 35.7% CNS complete responses by BICR in evaluable patients.","First patient enrollment in global pivotal Phase 3 ALPACCA trial expected in H2 2025.","Safety profile maintained; most common TEAEs: diarrhea, hepatic enzyme elevation, rash; no new signals."],"urls":{"canonical":"https://secwatch.observer/filing/0001558370-25-011954","json":"https://secwatch.observer/filing/0001558370-25-011954.json","markdown":"https://secwatch.observer/filing/0001558370-25-011954.md","text":"https://secwatch.observer/filing/0001558370-25-011954.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1868279/000155837025011954/0001558370-25-011954-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1868279/000155837025011954/avbp-20250909x8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T07:21:53.678382+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"}