Definition

An orally bioavailable, small molecule inhibitor of the enzyme leukotriene A4 hydrolase (LTA4H), with potential anti-inflammatory activity. Upon oral administration, acebilustat targets and inhibits the activity of LTA4H, thereby inhibiting the synthesis of the pro-inflammatory mediator leukotriene B4 (LTB4). This may reduce inflammation in various inflammatory disorders including cystic fibrosis and serious pulmonary inflammatory diseases. LTA4H catalyzes a major and rate-limiting step in LTB4 production, and LTB4 plays an important role in pulmonary and systemic inflammation.