Patent 7666874 was granted and assigned to Novartis on February, 2010 by the United States Patent and Trademark Office.
The present invention relates to the use of pyrimidylaminobenzamide derivatives for the preparation of a drug for the treatment of FIP1L1-PDGFRα-induced or TEL-PDGFRβ-induced myeloproliferative diseases, especially for the curative and/or prophylactic treatment of hypereosinophilic syndrome and hypereosinophilic syndrome with resistance to imatinib, and to a method of treating hypereosinophilic syndrome, chronic eosinophilic leukemia and hypereosinophilic syndrome with resistance to imatinib, or other diseases associated with FIP1L1-PDGFRα, TEL-PDGFRβ or similar mutations that activate PDGFR.