SUSTAINED RELEASE FORMULATIONS OF AROMATASE INHIBITORS

摘要

The invention discloses microparticles or nanoparticles comprising an aro matase inhibitor, preferably letrozole, in a polymeric matrix, preferably po ly(lactide-co-glycolide) glucose. The invention also discloses sustained rel ease formulations containing said microparticles and the use of said formula tions in treating cancer.