eFFECTOR Therapeutics, Inc. is a clinical-stage biopharmaceutical company. The Company is focused on the development of oncology drugs, such as selective translation regulator inhibitors (STRIs). The Company uses a selective translation regulation technology platform to internally discover a portfolio of small molecule STRI product candidates. Its product candidates target the eIF4F complex and its activating kinase, MNK. The Company’s lead product candidate, tomivosertib, is an inhibitor of MNK, and is being evaluated in combination with KEYTRUDA (pembrolizumab), an FDA-approved inhibitor of programmed cell death protein 1 (PD-1) in a randomized Phase 2b clinical trial in patients with metastatic non-small cell lung cancer (NSCLC). Its second product candidate, zotatifin, is an inhibitor of eIF4A, a component of the eIF4F complex, and is being evaluated in a Phase 1/2 clinical trial in patients with certain solid tumors. Its third program is focused on developing inhibitors of eIF4E.