secwatch.observer — SEC 8-K summary ====================================== Issuer: Apexigen, Inc. (—) CIK: 0001814140 Form: 8-K Filed at: 2022-11-14T23:59:59+00:00 Accession: 0000950170-22-024985 Event type: other_material Sentiment: positive Materiality: 0.75 Item codes: 4.01, 8.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Apexigen reports positive Phase 2 data for sotigalimab in liposarcoma; mPFS 12.45 mo -------------------------------------------------------------------------------- - Sotigalimab + doxorubicin achieved median PFS of 12.45 months in liposarcoma patients vs historical <5 months for doxorubicin alone. - Apexigen plans to expand LPS cohort by 10 patients to inform potential Phase 3 registration-enabling trial. - Favorable safety profile observed; data supports further development in first-line liposarcoma. - Study is investigator-sponsored trial in collaboration with Columbia University (Gary Schwartz, PI). Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1814140/000095017022024985/0000950170-22-024985-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1814140/000095017022024985/apgn-20221108.htm HTML page: https://secwatch.observer/filing/0000950170-22-024985 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer