{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-227505","form_type":"8-K","ticker":"TSHA","cik":"0001806310","company_name":"Taysha Gene Therapies, Inc.","filed_at":"2025-10-02T23:59:59+00:00","discovered_at":"2026-05-14T18:02:40.524740+00:00","generated_at":"2026-05-17T04:57:20.300049+00:00","sec_items":["8.01","9.01"],"event_type":"regulatory","sentiment":"positive","materiality_score":0.85,"calibrated_materiality_score":0.85,"confidence":"high","headline":"FDA grants Breakthrough Therapy designation for TSHA-102 in Rett syndrome; pivotal trial protocol finalized","bullets":["FDA Breakthrough Therapy designation for TSHA-102 based on Part A data from 12 patients showing 100% response rate on milestone gain.","FDA alignment finalized on REVEAL pivotal trial protocol and SAP; 6-month interim analysis could expedite BLA by at least two quarters.","Pivotal trial to enroll 15 females aged 6-22 with primary endpoint of milestone gain; enrollment on track for Q4 2025.","Clinical data also showed dose-dependent improvements on R-MBA and CGI-I; safety generally well-tolerated."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-227505","json":"https://secwatch.observer/filing/0001193125-25-227505.json","markdown":"https://secwatch.observer/filing/0001193125-25-227505.md","text":"https://secwatch.observer/filing/0001193125-25-227505.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1806310/000119312525227505/0001193125-25-227505-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1806310/000119312525227505/d61846d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T04:57:20.300049+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"}