Dexter Sullivan

Experience

• 

  ENVIRON International Corporation

  May 2004 - Jan 2010

  Associate

  Developed hazard assessments for industrial and regulatory clients.Evaluated data on mechanisms of toxicity for pesticides and metals.Served as toxicological researcher for toxic tort litigation projects.

• 

  ICF Consulting

  Jan 2010 - May 2012

  Senior Associate

  Served as a primary author and provided technical advice on the development of regulatory documents for branches of the United States Environmental Protection Agency including the Superfund Technical Support Center (STSC) of the National Center for Environmental Assessment (NCEA), Office of Pesticides Antimicrobial Division (OPP/AD) and the Office of Water

• 

  Gad Consulting Services

  May 2012 - now

  -Evaluates safety of drug formulations or materials for pharmaceuticals and medical devices including development of 510(k) Premarket Notifications, Investigational Device Exemptions (IDEs) Informational Brochures (IBs), Investigational New Drug (IND) applications, and Pre-IND meeting brochures -Performs Qualification Works - calculation of Permissible Daily Exposure (PDE), Tolerable Exposure (TE), Tolerable Intake (TI), etc. using ICH guidelines (Impurities, Degradant, Residual Solvents, etc)-Evaluates Leachables/Extractables for medical devices and drugs delivered (determination of allowable limits for substances leached from medical devices)-Utilizes Quantitative Structure Activity Relationship (QSAR) programs (DEREK, METEOR, EPA TEST, and Leadscope) to predict toxic responses and metabolic fates of chemicals.-Conducts F-Value assessments of pharmaceuticals to comply with child-resistant testing requirements for unit dose packaging Show less

  • Senior Director of Toxicology

    Dec 2022 - now

  • Senior Toxicologist

    May 2012 - Dec 2022