CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We hereby consent to the incorporation by reference in this registration statement on Form S-3 pertaining to the common stock, preferred stock, debt securities, warrants, subscription rights and units of Achieve Life Sciences, Inc. of our report dated March 1, 2018 relating to the consolidated financial statements, which appears in Achieve Life Sciences, Inc.’s Annual Report on Form 10-K for the year ended December 31, 2017. We also consent to the reference to us under the heading “Experts” in such registration statement.
/s/ PricewaterhouseCoopers LLP
Chartered Professional Accountants
Vancouver, Canada
December 26, 2018