Mail Stop 6010 Via Facsimile and U.S. Mail 	April 19, 2006 Mr. Michael P. Gray Vice President of Finance and Chief Financial Officer Curis, Inc. 61 Moulton Street Cambridge, MA 02138 Re:	Curis, Inc. 	Form 10-K for Fiscal Year Ended December 31, 2004 	File No. 000-30347 Dear Mr. Gray: We have completed our review of your Form 10-K and have no further comments at this time. 								Sincerely, 								Joseph J. Roesler 							Accounting Branch Chief