This excerpt taken from the ARIA 10-K filed Feb 18, 2005.
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in Registration Statement Nos. 33-90854, 333-36597, 333-63706, 333-90480 and 333-116996 of ARIAD Pharmaceuticals, Inc. on Form S-8 and Registration Statement No. 333-111401 of ARIAD Pharmaceuticals, Inc. on Form S-3 of our report dated February 17, 2005 appearing in this Annual Report on Form 10-K of ARIAD Pharmaceuticals, Inc. for the year ended December 31, 2004.
/s/ DELOITTE & TOUCHE LLP