secwatch.observer — SEC 8-K summary ====================================== Issuer: Transcode Therapeutics, Inc. (RNAZ) CIK: 0001829635 Form: 8-K Filed at: 2025-10-14T23:59:59+00:00 Accession: 0001104659-25-099029 Event type: other_material Sentiment: positive Materiality: 0.75 Item codes: 8.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 TransCode completes Phase 1a of TTX-MC138; 44% stable disease rate, moves to Phase 2a -------------------------------------------------------------------------------- - 16 patients treated across 4 dose levels; no dose-limiting toxicities or significant safety events observed. - Median treatment duration of 4 months (range 2–12); three patients remain on trial. - 44% (7/16) achieved stable disease lasting ≥4 months per RECIST; one thyroid cancer patient had undetectable thyroglobulin. - Recommended Phase 2 dose established; company plans to initiate Phase 2a efficacy trial. - PK profile shows predictable exposure; pharmacodynamic effects consistent with preclinical models and prior Phase 0. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1829635/000110465925099029/0001104659-25-099029-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1829635/000110465925099029/tm2528668d1_8k.htm HTML page: https://secwatch.observer/filing/0001104659-25-099029 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer