United States securities and exchange commission logo March 18, 2024 Bo Cumbo Chief Executive Officer Solid Biosciences Inc. 500 Rutherford Avenue, Third Floor Charlestown, MA 02129 Re: Solid Biosciences Inc. Registration Statement on Form S-3 Filed March 13, 2024 File No. 333-277871 Dear Bo Cumbo: 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 Jimmy McNamara at 202-551-7349 with any questions. Sincerely, Division of Corporation Finance Office of Life Sciences cc: Caroline Dotolo