SPER® 1 Company(Presentation Oppenheimer(Healthcare(Conference( March(20,(2019 Forward'looking-Statements 2 This presentation contains forward0looking statements as defined in the Private Securities Litigation Reform Act of 1995 regarding, among other things, the initiation, timing, progress and results of the Company's preclinical studies and clinical trials and its research and development programs, including management's assessment of such results; the anticipated timing of the opening of sites to suppor ...