secwatch.observer — SEC 8-K summary ====================================== Issuer: OMEROS CORP (OMER) CIK: 0001285819 Form: 8-K Filed at: 2021-10-18T23:59:59+00:00 Accession: 0001558370-21-013245 Event type: regulatory Sentiment: negative Materiality: 0.90 Item codes: 5.02, 7.01, 8.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Omeros receives FDA Complete Response Letter for narsoplimab BLA; director Ray Aspiri retires -------------------------------------------------------------------------------- - Ray Aspiri retired from Omeros board effective Oct 14, 2021, with no disagreement with the company. - FDA issued a Complete Response Letter for narsoplimab BLA for HSCT-TMA, citing difficulty estimating treatment effect. - FDA stated additional information is needed to support regulatory approval of narsoplimab for HSCT-TMA. - No CMC, safety, or non-clinical issues precluding approval were raised in the FDA Complete Response Letter. - Omeros plans to request a Type A meeting with FDA to discuss the most expeditious path for narsoplimab approval. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1285819/000155837021013245/0001558370-21-013245-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1285819/000155837021013245/omer-20211014x8k.htm HTML page: https://secwatch.observer/filing/0001558370-21-013245 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer