BioDelivery Sciences International, Inc. announced that on May 12, 2020, Frank E. O'Donnell Jr, MD notified BioDelivery Sciences International, Inc. that he has decided to resign, effective as of May 12, 2020 as a member of the company's Board of Directors. There are no disagreements between Dr. O'Donnell and the Company on any matter relating to the Company's operations, policies or practices.