secwatch.observer — SEC 8-K summary ====================================== Issuer: Aldeyra Therapeutics, Inc. (ALDX) CIK: 0001341235 Form: 8-K Filed at: 2023-06-21T23:59:59+00:00 Accession: 0001157523-23-001018 Event type: regulatory Sentiment: negative Materiality: 0.85 Item codes: 8.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 FDA issues Complete Response Letter for Aldeyra's ADX-2191 NDA for PVRL ----------------------------------------------------------------------- - FDA cited lack of substantial evidence due to no adequate well-controlled studies in literature-based NDA. - No safety or manufacturing issues identified in the Complete Response Letter. - Aldeyra plans Expanded Access Program discussions with FDA due to methotrexate shortage and no approved PVRL therapy. - ADX-2191 also under development for proliferative vitreoretinopathy and retinitis pigmentosa. - Top-line Phase 2 results in retinitis pigmentosa expected to be announced June 2023. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1341235/000115752323001018/0001157523-23-001018-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1341235/000115752323001018/a53427165.htm HTML page: https://secwatch.observer/filing/0001157523-23-001018 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer