eFFECTOR Therapeutics, Inc. is a clinical-stage biopharmaceutical company, which focuses on the development of a new class oncology drugs known as selective translation regulator inhibitors (STRIs). Its STRI product candidates target the eIF4F complex and its activating kinase, mitogen-activated protein kinase 1/2 (MNK 1/2). The company was founded by Kevan Shokat, Davide Ruggero, and Siegfried Reich on May 1, 2012 and is headquartered in Solana Beach, CA.