In Vitro: T-26c significantly inhibits the breakdown of collagen (87.4% inhibition at 0.1 μM) in IL-1β and oncostatin M stimulated cartilage.
In Vivo: T-26c is well absorbed in all species at the oral dose of 10–20 mg/kg. Oral administration of the disodium salt formulations of T-26c to guinea pigs results in significant increases in AUC (8357 ng h/mL) and Cmax (1445 ng/ mL) compared with those of the free acid T-26c (AUC = 6478 ng h/ mL and Cmax= 911 ng/mL).