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Mohr ALA, Logan BK, Fogarty MF, Krotulski AJ, Papsun DM, Kacinko SL, Huestis MA, Ropero-Miller JD. Reports of Adverse Events Associated with Use of Novel Psychoactive Substances, 2017-2020: A Review. J Anal Toxicol 2022; 46:e116-e185. [PMID: 35445267 PMCID: PMC9282356 DOI: 10.1093/jat/bkac023] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 03/17/2022] [Accepted: 04/20/2022] [Indexed: 12/15/2022] Open
Abstract
An important role of modern forensic and clinical toxicologists is to monitor the adverse events of novel psychoactive substances (NPS). Following a prior review from 2013 to 2016, this critical literature review analyzes and evaluates published case reports for NPS from January 2017 through December 2020. The primary objective of this study is to assist in the assessment and interpretation of these cases as well as provide references for confirmation methods. Chemistry, pharmacology, adverse events and user profiles (e.g., polypharmacy) for NPS are provided including case history, clinical symptoms, autopsy findings and analytical results. Literature reviews were performed in PubMed and Google Scholar for publications using search terms such as NPS specific names, general terms (e.g., ‘designer drugs’ and ‘novel psychoactive substances’), drug classes (e.g., ‘designer stimulants’) and outcome-based terms (e.g., ‘overdose’ and ‘death’). Government and website drug surveillance databases and abstracts published by professional forensic science organizations were also searched. Toxicological data and detailed case information were extracted, tabulated, analyzed and organized by drug category. Case reports included overdose fatalities (378 cases), clinical treatment and hospitalization (771 cases) and driving under the influence of drugs (170 cases) for a total of 1,319 cases providing details of adverse events associated with NPS. Confirmed adverse events with associated toxidromes of more than 60 NPS were reported including synthetic cannabinoid, NPS stimulant, NPS hallucinogen, NPS benzodiazepine and NPS opioid cases. Fifty of these NPS were reported for the first time in January 2017 through December 2020 as compared to the previous 4 years surveyed. This study provides insight and context of case findings described in the literature and in digital government surveillance databases and websites during a recent 4-year period. This review will increase the awareness of adverse events associated with NPS use to better characterize international emerging drug threats.
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Affiliation(s)
- Amanda L A Mohr
- Center for Forensic Science Research and Education at the Fredric Rieders Family Foundation, 2300 Stratford Ave, Willow Grove, PA, 19090, USA
| | - Barry K Logan
- Center for Forensic Science Research and Education at the Fredric Rieders Family Foundation, 2300 Stratford Ave, Willow Grove, PA, 19090, USA.,NMS Labs, 200 Welsh Rd, Horsham, PA, 19044, USA
| | - Melissa F Fogarty
- Center for Forensic Science Research and Education at the Fredric Rieders Family Foundation, 2300 Stratford Ave, Willow Grove, PA, 19090, USA
| | - Alex J Krotulski
- Center for Forensic Science Research and Education at the Fredric Rieders Family Foundation, 2300 Stratford Ave, Willow Grove, PA, 19090, USA
| | | | | | - Marilyn A Huestis
- Center for Forensic Science Research and Education at the Fredric Rieders Family Foundation, 2300 Stratford Ave, Willow Grove, PA, 19090, USA.,Institute of Emerging Health Professions, Thomas Jefferson University, Philadelphia, PA, 19107, USA
| | - Jeri D Ropero-Miller
- RTI International, Center for Forensic Sciences, 3040 East Cornwallis Rd, Research Triangle Park, NC, 27709, USA
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Xu F, Wei W, Shan X, Wang R, Liu L. Identification and characterization of novel synthetic cannabinoid ethyl-2-(1-(5-fluoropentyl)-1H-indole-3-carboxamido)-3,3-dimethylbutanoate (5F-EDMB-PICA). Forensic Toxicol 2021; 40:163-172. [DOI: 10.1007/s11419-021-00605-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 11/05/2021] [Indexed: 11/30/2022]
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Rodriguez Salas J, Krotulski AJ, Newman R, Thogmartin JR, Mohr ALA, Logan BK. Concentrations of para-Fluorofuranylfentanyl (FFF) in Paired Central and Peripheral Blood Collected During Postmortem Death Investigations. J Anal Toxicol 2021; 46:358-373. [PMID: 33693685 DOI: 10.1093/jat/bkab025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 02/25/2021] [Accepted: 03/09/2021] [Indexed: 01/03/2023] Open
Abstract
The opioid epidemic in the United States (U.S.) has been associated with an increasing mortality rate in large part due to the emergence and proliferation of synthetic opioids over the last fifteen years. Fentanyl and its analogues have played a large part in these statistics due to their potency and toxicity. Fluorofuranylfentanyl (FFF) is a fentanyl analogue that emerged in the U.S. in 2018 and was associated with numerous adverse events and deaths. During this study, a liquid chromatography tandem mass spectrometry (LC-MS/MS) workflow was developed to accurately identify the isomer of FFF present (ortho- vs. meta- vs. para-) in medicolegal death investigation cases from Pinellas County, Florida. FFF was quantified in central and peripheral blood samples collected at autopsy. In addition, the metabolism of FFF was studied using liquid chromatography quadrupole time-of-flight mass spectrometry (LC-QTOF-MS). para-FFF was quantitatively confirmed in 29 postmortem cases; no other isomer of FFF was detected. Central blood concentrations ranged between 0.66 and 73 ng/mL (mean = 11±14 ng/mL, median = 10 ng/mL) and peripheral blood concentrations ranged between 0.53 and 23 ng/mL (mean = 5.7±6.4 ng/mL, median = 2.7 ng/mL). Comparison of central to peripheral blood concentrations were evaluated to determine the possibility of postmortem redistribution (PMR). The metabolism of ortho-FFF was studied and found to undergo metabolic processes similar to fentanyl, producing ortho-fluorofuranyl-norfentanyl, fluoro-4-ANPP, and hydroxylated species. The results of this study demonstrate the toxicity of FFF and its implication in medicolegal death investigations. Laboratories must remain aware of new or re-emerging fentanyl analogues, as they pose significant risks to public health and public safety.
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Affiliation(s)
- Judith Rodriguez Salas
- Center for Forensic Science Research and Education at the Fredric Rieders Family Foundation, Willow Grove, PA
| | - Alex J Krotulski
- Center for Forensic Science Research and Education at the Fredric Rieders Family Foundation, Willow Grove, PA
| | | | | | - Amanda L A Mohr
- Center for Forensic Science Research and Education at the Fredric Rieders Family Foundation, Willow Grove, PA
| | - Barry K Logan
- Center for Forensic Science Research and Education at the Fredric Rieders Family Foundation, Willow Grove, PA.,NMS Labs, Horsham, PA
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Untargeted Metabolic Profiling of 4-Fluoro-Furanylfentanyl and Isobutyrylfentanyl in Mouse Hepatocytes and Urine by Means of LC-HRMS. Metabolites 2021; 11:metabo11020097. [PMID: 33578841 PMCID: PMC7916627 DOI: 10.3390/metabo11020097] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/05/2021] [Accepted: 02/09/2021] [Indexed: 11/16/2022] Open
Abstract
The diffusion of new psychoactive substances (NPS) is highly dynamic and the available substances change over time, resulting in forensic laboratories becoming highly engaged in NPS control. In order to manage NPS diffusion, efficient and innovative legal responses have been provided by several nations. Metabolic profiling is also part of the analytical fight against NPS, since it allows us to identify the biomarkers of drug intake which are needed for the development of suitable analytical methods in biological samples. We have recently reported the characterization of two new analogs of fentanyl, i.e., 4-fluoro-furanylfentanyl (4F-FUF) and isobutyrylfentanyl (iBF), which were found for the first time in Italy in 2019; 4F-FUF was identified for the first time in Europe and was notified to the European Early Warning System. The goal of this study was the characterization of the main metabolites of both drugs by in vitro and in vivo experiments. To this end, incubation with mouse hepatocytes and intraperitoneal administration to mice were carried out. Samples were analyzed by means of liquid chromatography-high resolution mass spectrometry (LC-HRMS), followed by untargeted data evaluation using Compound Discoverer software with a specific workflow, designed for the identification of the whole metabolic pattern, including unexpected metabolites. Twenty metabolites were putatively annotated for 4-FFUF, with the dihydrodiol derivative appearing as the most abundant, whereas 22 metabolites were found for iBF, which was mainly excreted as nor-isobutyrylfentanyl. N-dealkylation of 4-FFUF dihydrodiol and oxidation to carbonyl metabolites for iBF were also major biotransformations. Despite some differences, in general there was a good agreement between in vitro and in vivo samples.
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