April 2, 2019 Vimal Mehta Chief Executive Officer BioXcel Therapeutics, Inc. 555 Long Wharf Drive New Haven, CT 06511 Re: BioXcel Therapeutics, Inc. Registration Statement on Form S-3 Filed April 1, 2019 File No. 333-230674 Dear Dr. Mehta: 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 Dorrie Yale at 202-551-8776 with any questions. Sincerely, Division of Corporation Finance Office of Healthcare & Insurance cc: Stephen A. Cohen, Esq.