secwatch.observer — SEC 8-K summary ====================================== Issuer: Krystal Biotech, Inc. (KRYS) CIK: 0001711279 Form: 8-K Filed at: 2025-07-09T23:59:59+00:00 Accession: 0001711279-25-000065 Event type: other_material Sentiment: positive Materiality: 0.65 Item codes: 7.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Krystal Biotech doses first patient in Phase 1/2 trial of KB801 for neurotrophic keratitis -------------------------------------------------------------------------------- - First patient dosed in Phase 1/2 EMERALD-1 trial of KB801, a redosable eye-drop gene therapy for neurotrophic keratitis. - Study enrolls up to 27 adults with Stage 2 or 3 NK; 2:1 randomized to KB801 or placebo twice weekly for 8 weeks. - Primary endpoint: safety/tolerability; secondary: complete durable corneal healing at week 8. - NK diagnosed claims in US rose 115% from ~31,000 (2020) to ~68,000 (2024), per claims data. - Investor call/webcast July 9 at 8:30am ET to discuss KB801 program and trial design. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1711279/000171127925000065/0001711279-25-000065-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1711279/000171127925000065/krys-20250709.htm HTML page: https://secwatch.observer/filing/0001711279-25-000065 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer