1 Exhibit 23.1 The Board of Directors Epoch Pharmaceuticals, Inc.: We consent to incorporation by reference in the registration statements (No. 33-66742) on Form S-3 of Epoch Pharmaceuticals, Inc. of our report dated March 14, 1997, relating to the balance sheet of Epoch Pharmaceuticals, Inc. as of December 31, 1996, and the related statements of operations, shareholders' equity (deficit), and cash flows for each of the years in the two-year period ended December 31, 1996, which report appears in the December 31, 1996, annual report on Form 10-KSB of Epoch Pharmaceuticals, Inc. KPMG Peat Marwick LLP Seattle, Washington March 27, 1997