CLINICAL STUDY PROTOCOL Amendment #3 Document Title: Amendment #3 for a Phase IIb Randomized, Double-blind, Parallel Group, Placebo- and Active-controlled Study with Double-Blind Extension to Assess the Efficacy and Safety of Vamorolone in Ambulant Boys with Duchenne Muscular Dystrophy (DMD) Protocol Number: VBP15-004 Document Number: VBP15-004-A3 (Version 1.3) FDA IND No.: 118,942 Investigational Product: Vamorolone Sponsor: ReveraGen BioPharma, Inc. 155 Gibbs St. Suite 433 Rockville, MD 20850 Medical Monitors: Outside North America John van den Anker, M.D., Ph.D. Phone: (202) 309 3735 Email:
[email protected] North America Benjamin Schwartz, M.D., Ph.D. Phone: (314) 220 7067 Email:
[email protected] Document Date: 21 May 2019 This document represents proprietary information belonging to ReveraGen BioPharma, Inc. Unauthorized reproduction of the whole or part of the document by any means is strictly prohibited. This protocol is provided to you as a Principal Investigator, potential Investigator or consultant for review by you, your staff and Institutional Review Board or Independent Ethics Committee. The information contained in this document is privileged and confidential and, except to the extent necessary to obtain informed consent, must not be disclosed unless such disclosure is required by federal or state law or regulations. Persons to whom the information is disclosed in confidence must be informed that the information is confidential and must not be disclosed by them to a third party. Page 1 of 201 ReveraGen