TEXT-EXTRACT 2 filename2.txt United States securities and exchange commission logo January 2, 2024 Thomas P. Kelly Chief Financial Officer Deciphera Pharmaceuticals, Inc. 200 Smith Street Waltham, MA 02451 Re: Deciphera Pharmaceuticals, Inc. Form 10-K for the Year Ended December 31, 2022 Filed February 7, 2023 File No. 001-38219 Dear Thomas P. Kelly: We have completed our review of your filing. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Sincerely, Division of Corporation Finance Office of Life Sciences