Crystalline polymorph forms of 2-(5-bromo-4-(4-cyclopropyl naphthalen-l-yl)-4H-l,2,4-triazol- 3-ylthio)acetic acid are described. Pharmaceutical compositions and the uses of such compounds, compound forms, and compositions for the treatment of a variety of diseases and conditions are also presented.Linvention concerne des formes polymorphes cristallines de lacide 2-(5-bromo-4-(4-cyclopropylnaphtalen-1-yl)-4H-1,2,4-triazol-3-ylthio) acétique. Linvention concerne également des compositions pharmaceutiques et les utilisations de tels composés, formes de composés et compositions pour le traitement de diverses maladies et divers troubles.