United States securities and exchange commission logo April 3, 2024 James F. Oliviero Chief Executive Officer Checkpoint Therapeutics, Inc. 95 Sawyer Road, Suite 110 Waltham, MA 02453 Re: Checkpoint Therapeutics, Inc. Registration Statement on Form S-3 Filed March 29, 2024 File No. 333-278397 Dear James F. Oliviero: This is to advise you that we have not reviewed and will not review your registration statement. Please refer to Rules 460 and 461 regarding requests for acceleration. 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. Please contact Tyler Howes at 202-551-3370 with any questions. Sincerely, Division of Corporation Finance Office of Life Sciences cc: Matthew W. Mamak, Esq.