secwatch.observer — SEC 8-K summary ====================================== Issuer: Tyra Biosciences, Inc. (TYRA) CIK: 0001863127 Form: 8-K Filed at: 2025-06-30T23:59:59+00:00 Accession: 0001193125-25-152016 Event type: other_material Sentiment: neutral Materiality: 0.50 Item codes: 8.01 LLM model: deepseek-v4-flash:cloud@v2 Tyra Biosciences doses first patient in Phase 2 study of TYRA-300 for low-grade, intermediate risk NMIBC -------------------------------------------------------------------------------- - SURF302 open-label Phase 2 study of TYRA-300 in FGFR3-altered low-grade IR NMIBC; up to 90 participants at US sites. - Primary endpoint: complete response rate at three months; initial CR data expected first half 2026. - Patients randomized to 50 mg QD or 60 mg QD; additional dosing cohort may be evaluated. - TYRA-300 also being studied in pediatric achondroplasia in BEACH301 Phase 2; first child dosing expected H2 2025. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1863127/000119312525152016/0001193125-25-152016-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1863127/000119312525152016/d11524d8k.htm HTML page: https://secwatch.observer/filing/0001193125-25-152016 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer