secwatch.observer — SEC 8-K summary ====================================== Issuer: Moleculin Biotech, Inc. (MBRX) CIK: 0001659617 Form: 8-K Filed at: 2026-06-30T12:30:18+00:00 Accession: 0001437749-26-022088 Event type: other_material Sentiment: positive Materiality: 0.85 Item codes: 7.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Moleculin reports Annamycin CR rates 3x control in Phase 2/3 MIRACLE interim ---------------------------------------------------------------------------- - CR of 43% and 36% for Annamycin arms vs 12% control; CRc 50% and 57% vs 29% control (n=45, ITT). - iDMC unanimously recommended continuing; no statistical significance at interim per O'Brien-Fleming design. - Part A enrollment 67 of 90 (74%); trial remains powered at 80% for final analysis of ~282 subjects. - Results after single cycle; 75.6% of patients over 60, 31.1% pretreated with venetoclax. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1659617/000143774926022088/0001437749-26-022088-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1659617/000143774926022088/mbrx20260630_8k.htm HTML page: https://secwatch.observer/filing/0001437749-26-022088 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer