EX-16 2 ltrpwc.txt PricewaterhouseCoopers PricewaterhouseCoopers LLP 400 Campus Drive P.O. Box 988 Florham Park, NJ 07932 Telephone (973) 236-4000 Facsimile (973) 236-5000 January 26, 2005 Securities and Exchange Commission 450 Fifth Street, N.W. Washington, D.C. 20549 Commissioners: We have read the statements made by Cortech, Inc. (copy attached), which we understand will be filed with the Commission, purusuant to Item 4.01 of Form 8-K, as part of the Company's Form 8-K report dated January 20, 2005. We agree with the statements concerning our Firm in such Form 8-K. Very truly yours, /s/ PricewaterhouseCoopers LLP ------------------------------ PricewaterhouseCoopers LLP