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Toxicological Time Travel: Retrospective Datamining of Analytical Time-of-Flight Mass Spectrometry (TOFMS) Data for Evaluating the Rise and Fall of Novel Opioid and Other Drug Use in the United States
Monday, March 08, 2021: 3:45 PM - 4:05 PM
Speaker(s)
Description
This presentation will describe an approach developed to use keysentinel pieces of information from forensic seized drug and toxicology casework to rapidly identify emerging NPS compounds. Samples from death investigation cases from forty-six states were submitted to NMS Labs for analysis for therapeutic drugs, legacy drugs of abuse and emerging NPS. Data acquisition was performed in non-targeted mode allowing comprehensive high mass accuracy data to be archived for subsequent data mining. Through various drug intelligence channels including gas chromatography/mass spectrometry analysis of seized drug exhibits from criminal investigations, and from drug seizures at international express mail ports of entry, new drug candidates were identified, and the data archive was retrospectively queried to determine the date of first appearance of the substance. This allowed the construction of a time series and geographic heat maps of the proliferation of the new drug into areas from which toxicological specimens had been submitted. This data was provided to public health and public safety agencies and was used to support scheduling actions of these new substances by the Drug Enforcement Administration (DEA). During the study, over 180,000 TOF data files were reprocessed each month using a library that at the conclusion of the project contained over 120 emerging opioids. Through this approach a real-time monitoring system and early warning system was developed for opioid and other drug trends in the US. The project retrospectively identified twelve emerging opioids in 2018, and five in 2019, in forensic toxicology casework. The presentation will include a description of the use of this approach to track the rise and fall of the novel opioid isotonitazene which was identified in Q3 2019, and to which over 300 deaths were attributed to through the second quarter of 2020. Isotonitazene was scheduled in August 2020, based in part on this data.
Additional Info
Keywords: Please select up to 4 keywords ONLY:
Chromatography - Other,Clinical/Toxicology,Data Analysis and Manipulation,Mass Analyzers
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