Mofezolac (Synonyms: N-22)

Mofezolac, a non-steroidal anti-inflammatory drug (NSAID), is a selective, reversible and orally active COX-1 inhibitor with an IC50 of 1.44 nM. Mofezolac shows weak inhibitory activity on COX-2 (IC50 of 447 nM). Mofezolac can relieve pain and has anti-inflammatory activities[1].

Mofezolac inhibits platelet aggregation with an IC50 of 0.45 µM in human platelet rich plasma (hPRP) assay[2]. Mofezolac slightly increase Bortezomib cytotoxic effect on multiple myeloma (MM) cell lines (NCI-H929 and RPMI-8226) and affects MM cell cycle and apoptosis when co-administered with the proteasome inhibitor Bortezomib[2].

Mofezolac (1-30 mg/kg; oral administration; once) treatment results in the suppression of writhing induced by the intraperitoneal injection of phenyl-p-benzoquinone in mice[1].

References:
[1]. K Goto, et al. Analgesic effect of mofezolac, a non-steroidal anti-inflammatory drug, against phenylquinone-induced acute pain in mice. Prostaglandins Other Lipid Mediat. 1998 Jul;56(4):245-54.
[2]. Maria Laura Pati, et al. Translational impact of novel widely pharmacological characterized mofezolac-derived COX-1 inhibitors combined with bortezomib on human multiple myeloma cell lines viability. Eur J Med Chem. 2019 Feb 15;164:59-76.