secwatch.observer — SEC 8-K summary ====================================== Issuer: Senti Biosciences, Inc. (SNTI) CIK: 0001854270 Form: 8-K Filed at: 2025-12-09T23:59:59+00:00 Accession: 0001628280-25-055953 Event type: other_material Sentiment: positive Materiality: 0.80 Item codes: 7.01, 8.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Senti Bio reports SENTI-202 Phase 1 data: 50% ORR, 42% CR/CRh at RP2D; receives FDA RMAT designation -------------------------------------------------------------------------------- - In 18 evaluable R/R AML patients, SENTI-202 achieved 50% ORR and 42% CR/CRh at RP2D; 100% of CRs MRD negative and median duration of CR 7.6 months. - SENTI-202 was well-tolerated with no DLTs, no drug-related SAEs, and most AEs hematologic consistent with lymphodepletion. - FDA granted Regenerative Medicine Advanced Therapy (RMAT) designation for SENTI-202, adding to prior Orphan Drug Designation. - Logic Gate mechanism validated: selective killing of AML blasts/LSCs while sparing healthy hematopoietic stem/progenitor cells. - Company to host investor call Dec 9 at 8 AM ET; SENTI-202 potential for pivotal studies and expansion into newly diagnosed AML, pediatric AML, MDS. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1854270/000162828025055953/0001628280-25-055953-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1854270/000162828025055953/snti-20251209.htm HTML page: https://secwatch.observer/filing/0001628280-25-055953 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer