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Substance Use Monitoring Among People Who Use Drugs Using a Novel Assay to Test Dried Blood Spot Specimens.

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Title: Substance Use Monitoring Among People Who Use Drugs Using a Novel Assay to Test Dried Blood Spot Specimens.
Authors: Zinsli, Kaitlin A. (AUTHOR), Krotulski, Alex J. (AUTHOR), Fogarty, Melissa F. (AUTHOR), Kress, Devin (AUTHOR), Logan, Barry K. (AUTHOR), Morgan, Anthony (AUTHOR), Beckford, Jeremy (AUTHOR), Guthrie, Brandon L. (AUTHOR), Tsui, Judith I. (AUTHOR), Des Jarlais, Don C. (AUTHOR), Glick, Sara N. (AUTHOR)
Source: Substance Use & Misuse. 2025, Vol. 60 Issue 9, p1382-1390. 9p.
Subjects: Substance abuse, Cocaine, Cross-sectional method, Blood chemical analysis, Methamphetamine, Needle exchange programs, Secondary analysis, Research funding, Sulfur compounds, Blood collection, Descriptive statistics, Drug use testing, Heroin, Harm reduction, Research, Liquid chromatography, Mass spectrometry, Fentanyl
Geographic Terms: United States
Abstract: Background and aims: The development of comprehensive strategies to understand emerging trends in substance use is necessary to design effective prevention and harm reduction strategies for people who use drugs (PWUD). Dried blood spots (DBS) can be used as a non-conventional drug testing approach that meets Food and Drug Administration (FDA) accuracy and precision guidelines. Design, setting, and participants: From July 2021 to July 2022, 1,559 PWUD were enrolled at six US syringe service programs (SSP) in Sacramento, California, Ellensburg, Washington, and Missoula, Montana ("Western"), Madison, Wisconsin, New Haven, Connecticut, and Wilmington, North Carolina ("Eastern"). Measures: Participants completed a survey on demographic and behavioral characteristics and provided DBS specimens. A novel toxicology assay coupling liquid chromatography and tandem mass spectrometry was developed and used to identify the presence/absence of fentanyl, methamphetamine, xylazine, cocaine, and heroin, along with their metabolites. In this cross-sectional analysis, we describe the prevalence of each substance stratified by SSP. Results: Among 1,345 PWUD, methamphetamine was more prevalent in the Western versus Eastern state SSPs (95% vs. 33%). The Eastern state SSPs saw higher prevalence of cocaine, fentanyl, heroin, and xylazine than the Western state SSPs (86% vs. 24%; 41% vs. 11%; 20% vs. 17%; 20% vs. 6%, respectively). Testing positive for more than one substance was common (50%). Conclusions: These results confirm existing regional differences in substance use. Further research is needed on the logistical implications of DBS and in which public health and research settings they may be useful. [ABSTRACT FROM AUTHOR]
Copyright of Substance Use & Misuse is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Substance Use Monitoring Among People Who Use Drugs Using a Novel Assay to Test Dried Blood Spot Specimens.
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  Data: <searchLink fieldCode="AR" term="%22Zinsli%2C+Kaitlin+A%2E%22">Zinsli, Kaitlin A.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Krotulski%2C+Alex+J%2E%22">Krotulski, Alex J.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fogarty%2C+Melissa+F%2E%22">Fogarty, Melissa F.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kress%2C+Devin%22">Kress, Devin</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Logan%2C+Barry+K%2E%22">Logan, Barry K.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Morgan%2C+Anthony%22">Morgan, Anthony</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Beckford%2C+Jeremy%22">Beckford, Jeremy</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Guthrie%2C+Brandon+L%2E%22">Guthrie, Brandon L.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tsui%2C+Judith+I%2E%22">Tsui, Judith I.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Des+Jarlais%2C+Don+C%2E%22">Des Jarlais, Don C.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Glick%2C+Sara+N%2E%22">Glick, Sara N.</searchLink> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Substance+Use+%26+Misuse%22">Substance Use & Misuse</searchLink>. 2025, Vol. 60 Issue 9, p1382-1390. 9p.
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  Data: <searchLink fieldCode="DE" term="%22United+States%22">United States</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Background and aims: The development of comprehensive strategies to understand emerging trends in substance use is necessary to design effective prevention and harm reduction strategies for people who use drugs (PWUD). Dried blood spots (DBS) can be used as a non-conventional drug testing approach that meets Food and Drug Administration (FDA) accuracy and precision guidelines. Design, setting, and participants: From July 2021 to July 2022, 1,559 PWUD were enrolled at six US syringe service programs (SSP) in Sacramento, California, Ellensburg, Washington, and Missoula, Montana ("Western"), Madison, Wisconsin, New Haven, Connecticut, and Wilmington, North Carolina ("Eastern"). Measures: Participants completed a survey on demographic and behavioral characteristics and provided DBS specimens. A novel toxicology assay coupling liquid chromatography and tandem mass spectrometry was developed and used to identify the presence/absence of fentanyl, methamphetamine, xylazine, cocaine, and heroin, along with their metabolites. In this cross-sectional analysis, we describe the prevalence of each substance stratified by SSP. Results: Among 1,345 PWUD, methamphetamine was more prevalent in the Western versus Eastern state SSPs (95% vs. 33%). The Eastern state SSPs saw higher prevalence of cocaine, fentanyl, heroin, and xylazine than the Western state SSPs (86% vs. 24%; 41% vs. 11%; 20% vs. 17%; 20% vs. 6%, respectively). Testing positive for more than one substance was common (50%). Conclusions: These results confirm existing regional differences in substance use. Further research is needed on the logistical implications of DBS and in which public health and research settings they may be useful. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Substance Use & Misuse is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=pbh&AN=186129985
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        Value: 10.1080/10826084.2025.2497951
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        Text: English
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        Type: general
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      – SubjectFull: Cross-sectional method
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      – SubjectFull: Blood collection
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      – SubjectFull: Descriptive statistics
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      – SubjectFull: Drug use testing
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