Zaloglanstat (ISC-27864) is a selective, orally active mPGES-1 inhibitor with an IC50 of 5 nM against human mPGES-1, demonstrating analgesic effects in osteoarthritis and inflammatory arthritis.
PF-4693627 is an effective and selective microsomal prostaglandin E synthase-1 inhibitor (IC50=3 nM). It is used for the treatment of inflammation caused by osteoarthritis (OA) and rheumatoid arthritis (RA).