secwatch.observer — SEC 8-K summary ====================================== Issuer: Moleculin Biotech, Inc. (MBRX) CIK: 0001659617 Form: 8-K Filed at: 2026-05-22T20:00:36+00:00 Accession: 0001437749-26-018242 Event type: other_material Sentiment: positive Materiality: 0.55 Item codes: 7.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Moleculin Biotech ASCO abstract on Annamycin cardiac safety shows no cardiotoxicity in 90 patients -------------------------------------------------------------------------------- - Abstract accepted for poster at 2026 ASCO Annual Meeting (May 29–June 2, Chicago). - Pooled safety analysis of 90 Annamycin patients; median cumulative dose 660 mg/m2. - No significant LVEF change from baseline (mean diff -0.12%, p=0.84); no dose correlation. - CEO highlights potential to provide anthracycline therapy without cardiotoxicity limits. - Company's Phase 1b/2 AML study previously showed 50% CR and median OS of 12.39 months. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1659617/000143774926018242/0001437749-26-018242-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1659617/000143774926018242/mbrx20260522_8k.htm HTML page: https://secwatch.observer/filing/0001437749-26-018242 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer