secwatch.observer — SEC 8-K summary ====================================== Issuer: Dyne Therapeutics, Inc. (DYN) CIK: 0001818794 Form: 8-K Filed at: 2022-09-12T23:59:59+00:00 Accession: 0000950170-22-018315 Event type: other_material Sentiment: neutral Materiality: 0.65 Item codes: 8.01 LLM model: deepseek-v4-flash:cloud@v2 Dyne doses first patient in DYNE-251 DMD trial, initiates DYNE-101 DM1 trial, defers FSHD IND -------------------------------------------------------------------------------- - First patient dosed in Phase 1/2 DELIVER trial of DYNE-251 for DMD exon 51 skipping; registrational trial targeting ~46 patients. - Initiated Phase 1/2 ACHIEVE trial for DYNE-101 in DM1; first patient expected in September 2022; target ~64 adult patients. - Deferring IND submission for DYNE-301 (FSHD) originally planned for H2 2022; update expected in 2023. - Cash runway extended through 2024 due to FSHD program deferral, based on existing cash and equivalents. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1818794/000095017022018315/0000950170-22-018315-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1818794/000095017022018315/dyn-20220906.htm HTML page: https://secwatch.observer/filing/0000950170-22-018315 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer