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Senior Management Team


Mark A. Sirgo, Pharm.D.

Mark A. Sirgo, Pharm. D.

President and Chief Executive Officer

Mark A. Sirgo, Pharm.D., has been our President since January 2005 and Chief Executive Officer and Director since August 2005. He joined our company in August 2004 as Senior Vice President of Commercialization and Corporate Development upon our acquisition of Arius Pharmaceuticals, of which he was a co-founder and Chief Executive Officer. He has also served as our Executive Vice President, Corporate and Commercial Development and our Chief Operating Officer. Dr. Sirgo has over 30 years of experience in the pharmaceutical industry, including 16 years in clinical drug development, 7 years in marketing, sales, and business development and 12 years in executive management positions. Prior to his involvement with Arius Pharmaceuticals from 2003 to 2004, he spent 16 years in a variety of positions of increasing responsibility in both clinical development and marketing at Glaxo, Glaxo Wellcome, and GlaxoSmithKline, including Vice President of International OTC Development and Vice President of New Product Marketing. Dr. Sirgo was responsible for managing the development and FDA approval of Zantac 75 while at Glaxo Wellcome, among other accomplishments. From 1996 to 1999, Dr. Sirgo was Senior Vice President of Global Sales and Marketing at Pharmaceutical Product Development, Inc., a leading contract service provider to the pharmaceutical industry. Dr. Sirgo served on the Board of Directors and as Chairman of the Compensation Committee of Salix Pharmaceuticals, Inc. (NASDAQ:SLXP), a specialty pharmaceutical company specializing in gastrointestinal products since 2008 until its sale in 2015. Dr. Sirgo is qualified to serve on our board of directors because of his extensive experience in specialty biopharmaceutical companies. Dr. Sirgo received his BS in Pharmacy from The Ohio State University and his Doctorate from Philadelphia College of Pharmacy and Science.


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Ernest R. De Paolantonio, CPA

Ernest R. De PaolantonioChief Financial Officer

Ernest R. De Paolantonio, CPA MBA, has been our Chief Financial Officer since October of 2013 and has over 35 years of varied financial and business experience in the pharmaceutical industry. Prior to joining the company, he served as the Chief Financial Officer of CorePharma LLC, a private specialty generic company, and was directly involved in the financial and commercial strategy to establish Core's proprietary labeled portfolio of products. In addition, he previously served in finance and controllers positions in roles of increasing responsibility at Colombia Laboratories, where he was also responsible for business development and logistics, including supply chain management for the company's first commercial product launch. Mr. De Paolantonio has served in various financial positions in senior management at Taro Pharmaceuticals where he was the Corporate Controller, Watson Pharmaceuticals where he was Executive Director of Finance, Group Controller and responsible for managing the Corporation's supply chain of Active Pharmaceutical Ingredients, and GlaxoSmithKline where began his career in finance and spent over 17 years in areas of increasing responsibility including; Manufacturing, Corporate Finance, R&D and U.S. Pharmaceuticals where he was Group Controller. Mr. De Paolantonio received his Bachelor of Arts Degree from Lycoming College, his MBA in Finance at Saint Joseph's University and is a licensed CPA.


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Niraj Vasisht, Ph.D.

Niraj Vasisht, Ph.D.

Senior Vice President and Chief Technology Officer

Niraj Vasisht, Ph.D. joined our company in February 2005 as the Vice President of Product Development. In October 2009, he was promoted to Senior Vice President of Product Development and Chief Technical Officer and later to Senior Vice President and Chief Technology Officer in January 2016.  Dr. Vasisht heads the Chemistry, Manufacturing and Controls (CMC) for our pipeline products, and has led the efforts on formulation development, process development, and manufacturing of ONSOLIS®, BELBUCA®, and BUNAVAIL® based on BEMA® Technology. In his new role, Dr. Vasisht will focus on selecting suitable drug delivery platforms and product where delivery is the differentiating feature to continue growing our product development pipeline, while continuing to lead the CMC and Quality Operations.  Dr. Vasisht will provide technical and strategic leadership to the business development function as he evaluates drug delivery platforms and candidate molecules.  Dr. Vasisht is known as a key-opinion-leader (KOL) in the field of microencapsulation-based controlled/sustained release and drug delivery technologies. Prior to joining the company, Dr. Vasisht served as the Director of Microencapsulation, Pharmaceutical Development and Nanomaterials at Southwest Research Institute where he developed several commercial formulations and lead a team of prolific researchers in product conceptualization, product development, engineering scale up and commercial manufacturing across pharmaceutical, consumer health, and nutraceutical industry.  Dr. Vasisht is the inventor for several patents that resulted in product commercialization. He received a Bachelor's degree in Chemical Engineering from the Indian Institute of Technology at Kanpur, a Master's of Science from the University of New Hampshire and a Doctorate in Chemical Engineering from Rensselaer Polytechnic Institute.


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Albert J. Medwar, M.B.A.

Albert J. Medwar, M.B.A.

Senior Vice President, Corporate and Business Development

Albert J. Medwar, M.B.A. joined the company in April 2007 and was our Vice President of Marketing and Corporate Development, with over 25 years of experience in marketing, sales, and marketing research, until promoted to Senior Vice President of Corporate and Business Development in 2015. Prior to joining the company, Mr. Medwar was the Head of Oncology Marketing at EMD Pharmaceuticals, the U.S. subsidiary of Merck KGaA, where he was responsible for developing the global market for a pipeline of oncology products. Mr. Medwar was also the Marketing Director for Triangle Pharmaceuticals, a start-up company focusing on the development and commercialization of compounds for HIV and hepatitis. Mr. Medwar’s pharmaceutical career began in sales at Burroughs Wellcome, which later became Glaxo Wellcome. After six years of sales experience, he took on marketing research responsibilities, and then played an important role in the launch of a short acting opioid analgesic, remifentanil, and held increasing marketing responsibility for a number of products including a portfolio of anesthetic/analgesic agents, Zofran, and Wellbutrin SR. Mr. Medwar received a Bachelor of Science degree from Cornell University and a Masters of Business Administration from Bentley College.


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Stephana Patton, Ph.D., J.D.

Stephana PattonVice President and General Counsel

Stephana Patton, Ph.D., J.D. has been our Vice President & General Counsel since joining the company in June 2015, with over 15 years of combined experience in the pharmaceutical industry and the law. Dr. Patton heads our legal, compliance and intellectual property functions. Prior to joining the company, Dr. Patton held various senior management positions, including Head of Intellectual Property and Licensing at Salix Pharmaceuticals, a publicly-traded, global pharmaceutical company acquired by Valeant Pharmaceuticals.  Prior to joining Salix, Dr. Patton was in private practice at a large international law firm known for its intellectual property expertise.  Her practice focused on counseling clients on intellectual property matters, including patent prosecution and litigation, as well as licensing transactions for biotechnology and pharmaceutical companies at varying stages of product development and company life cycle. Dr. Patton earned a Juris Doctor (J.D.) degree in law from the Boston University School of Law and a Ph.D. in Biochemistry, Cell and Developmental Biology from Emory University.

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Scott Plesha

Scott PleshaSenior Vice President, Sales and Marketing

Scott Plesha joined the company in August 2015 as our Senior Vice President, Sales, with more than 26 years of sales experience and over 18 years of sales management experience within the pharmaceutical and medical industries. Mr. Plesha assumed the additional responsibility of leading our Marketing department in December 2015. Mr. Plesha leads our Specialty Sales Force, Marketing, and Training departments. Prior to joining the company, Mr. Plesha was Senior Vice President, GI Sales Force & Training at Salix Pharmaceuticals, where since 2002 he led Salix’s top rated gastrointestinal (GI) sales forces, the sales training department as well as many other sales operations functions. During Mr. Plesha’s tenure at Salix he was responsible for launching or growing product sales as well as optimizing and expanding the sales force to accommodate the multiple companies and products that Salix acquired. Prior to joining Salix, Mr. Plesha was a Regional Sales Manager for the O’Classen Dermatologics division of Watson Pharmaceuticals, Inc. Mr. Plesha began his pharmaceutical sales career with Solvay Pharmaceuticals where he was a field as well institutional sales representative. Mr. Plesha received a Bachelor of Arts in Pre-Medical Studies from DePauw University.


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Mike Bullock

Mike BullockNational Director, Managed Markets

Michael Bullock has been our National Director, Managed Markets since joining the company in June 2015, with more than 25 years of Sales and 17 years of Managed Markets experience within the pharmaceutical and medical space. Mr. Bullock heads our Managed Markets department and is responsible for developing and implementing market access strategies and managing consultant relationships relating to managed markets, lobbying and government affairs. Prior to joining the company, Mr. Bullock was a Director, Managed Markets for Salix Pharmaceuticals, a GI pharmaceutical and medical device company, where he led a team of National and Regional Account Managers. While at Salix, Mr. Bullock was responsible for implementing market access strategies across various payer channels including Commercial, Medicaid, Medicare, GPO, Institutional, Long Term Care and Employer Group customers, as well as developing medical policy for devices. Prior to joining Salix, Mr. Bullock held managed markets positions with UCB, Celltech Pharmaceuticals and Medeva Pharmaceuticals and was a sales representative with Adams Laboratories. Mr. Bullock received his Bachelor of Science in Agricultural Economics from The Ohio State University.


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Joseph Lockhart

Joseph LockhartVice President, Manufacturing and Supply Chain

Joseph Lockhart has been our Vice President of Manufacturing and Supply Chain since joining the company in November 2015, with 29 years of experience in the pharmaceutical industry with specific focus in the areas of manufacturing, supply chain, product development, CMC (Chemistry, Manufacturing, and Controls), and quality. Mr. Lockhart heads our manufacturing and supply chain function, including both commercial production and scale-up/manufacturing support for products in the latter stages of development. Prior to joining the company, Mr. Lockhart was Vice President, Pharmaceutical Development and Manufacturing at Salix Pharmaceuticals, where since 2001 he established the Pharmaceutical Development and Manufacturing team and contributed to multiple NDA submissions, as well as multiple product acquisitions and launches. During Mr. Lockhart’s tenure at Salix he held positions of increasing responsibility and was responsible for managing the functional areas of manufacturing, technical operations, formulation development, and clinical trial material operations, and contributed to the expansion and optimization of the overall supply chain operation which included over 40 contract vendors. Prior to joining Salix, Mr. Lockhart served in various CMC-related roles and responsibilities throughout the first 15 years of his pharmaceutical career including Manufacturing Manager (Blue Ridge Pharmaceuticals) and Associate Director of Quality (Mayrand Pharmaceuticals). Mr. Lockhart began his pharmaceutical career with Baxter Healthcare as an analytical chemist. Mr. Lockhart received a Master of Business Administration degree from the University of North Carolina at Charlotte as well as a Bachelor of Arts degree in Chemistry from the University of North Carolina at Chapel Hill.


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Top News

BioDelivery Sciences Announces Preferred Formulary Status for BUNAVAIL on Texas Medicaid
BUNAVAIL moved from non-formulary to preferred status

BioDelivery Sciences Announces Additions to its Board of Directors
Timothy C. Tyson joins BDSI's board as an independent member with over 30 years of pharmaceutical experience

BioDelivery Sciences Cites Impressive Number of Physicians Granted Waiver to Increase Patient Limit for Opioid Dependence Treatment Following Recent HHS Rule
SAMHSA Reports 1,665 Clinicians Granted Waivers at the Increased Limit as of This Week

BioDelivery Sciences to Present at the Ladenburg Thalmann 2016 Healthcare Conference

BioDelivery Sciences Announces Three New Managed Care Agreements; Further Enhancing Access to BUNAVAIL
New contracts improve BUNAVAIL formulary status and give BUNAVAIL access to approximately 200,000 additional prescriptions for buprenorphine products for opioid dependence annually