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About

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Andrew D. Ewens, PhD, DABT

 

  • PhD in pharmacology

    • Since 2004​

  • Board certified toxicologist

    • American Board of Toxicology

      • Since 2009

      • >20 hours continuing education/year

  • Biomedical science experience

    • Since 1994

  • 15 years as government contract toxicologist

    • National Toxicology Program

      • National Institute of Environmental Health Sciences

    • Centers for Disease Control and Prevention

    • National Cancer Institute

    • National Library of Medicine

    • Environmental Protection Agency

  • 10 years of institutional research experience

    • Developed curative immunotherapy for cancer in mice

    • Developed a technique to detecting genetic damage

    • Clone NAD(P)H:quinone oxoreductase enzyme

    • Developed structure activity relationships of taxane-induced Pgp inhibition

    • Developed method to measure Ran GTP binding protein activity

    • Characterize tetramerization site of GlpR protein

  • ​Independent research

    •  

      Since 2011

      • Conducting studies on SDST/DRE evaluations

      • Conducting studies on CBD oil

      • Conducting studies on mouth alcohol

      • Conducting studies on “alcohol” smell on the breath

      • Building a liquid chromotagraphy/raman spectroscopy instrument

      • Conducting studies on bias of interpreting drug testing results

  • Expert witness experience

    • Since 2014

  • Testifying 

    • Since 2015 

    • Qualified for

      • Toxicology/Pharmacology

        • Drug use​

        • Drug-induced impairment

        • Drug-induced death

      • SFST/Impairment detection

        • Drug-induced impairment​

      • Breath alcohol detection

        • Drug use​

        • Drug-induced impairment

    • Qualified in

      • United States

        • CA, CO, Federal, MD, MI, MT, NC, OR, TX, VA

      • Internationally

        • Norway

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