Reparixin is a noncompetitive allosteric inhibitor of the inflammatory CXCL8 (IL-8) chemokine receptors CXCR1 and CXCR2 with IC50 values of 1 nM for CXCR1 and 100 nM for CXCR2. It is believed to prevent receptor signaling by locking CXCR1/R2 in an inactive conformation. Reparixin has been studied to prevent ischaemia-reperfusion injury and inflammation and is clinical trials for triple negative breast cancer and to prevent injury occurring after pancreatic islet transplantation.