JCOIN Studies

Improving Overdose Prevention and Treatment in the Criminal Legal System

JCOIN supports researchers working in partnership with criminal legal system and behavioral health treatment professionals to build the evidence base for effective SUD service delivery, implementation, and dissemination. Each JCOIN study addresses a specific gap in the SUD care cascade, at one or more intercept points including jails, prisons, community corrections, problem-solving courts, and juvenile justice agencies. The studies evaluate the effectiveness and/or implementation of behavioral interventions, digital therapeutics, comprehensive patient-centered treatments, and medications for opioid use disorder (MOUD) in communities throughout the United States.

JCOIN research projects vary in size, complexity, and duration, from small pilot studies to large multisite clinical trials. JCOIN 1.0 projects were conducted between 2019-2025. JCOIN 2.0 studies were launched beginning in 2025.

Browse all projects, or use the filtering tools below for more information about JCOIN studies.

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Creating a Geospatial Community of Practice (209)

Principal Investigator(s): Marynia Kolak

Because substance use research spans multiple disciplines and has far-reaching needs within U.S. public health systems, it is crucial to…

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National Jail Survey on Evidence-Informed Practices for Substance Use Treatment in Criminal Justice Settings (208)

Principal Investigator(s): Bruce Taylor, Moira McNulty

MAARC’s Survey Research Core, led by NORC, will conduct a national survey of substance use services in jails to examine…

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Policy Dimensions and Impacts of Medicaid Reentry Waiver Program (207)

Principal Investigator(s): Harold Pollack, PhD, Colleen Grogan

This project aims to determine whether Medicaid SUD and Reentry waiver programs increase access to SUD treatments, including MOUDs, and…

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In-Depth National AmeriSpeak Survey (206)

Principal Investigator(s): Bruce Taylor, Moira McNulty

MAARC’s Survey Research Core, under the direction of NORC at the University of Chicago, will conduct a national survey using…

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Brief National Public Opinion Surveys on Substance Use Disorder and Criminal Legal Involvement (205)

Principal Investigator(s): Bruce Taylor, Moira McNulty

MAARC’s Survey Research Core, under the direction of NORC at the University of Chicago, seeks to track dynamic changes in…

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Informing Contemporary Barriers to Access (204)

Principal Investigator(s): Marynia Kolak

This activity involves a realist literature review with community engagement to refine indicators of community-level barriers to accessing SUD treatment…

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Refining & Expanding the OEPS Data Warehouse (203)

Principal Investigator(s): Marynia Kolak

This project will update current and define new community indicators for the publicly-available Opioid Environment Policy Scan (OEPS) Data Warehouse,…

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In Silico Trials Framework for Modeling SUD Interventions (202)

Principal Investigator(s): Jonathan Ozik, Anna Hotton

Clinical trials form the bedrock of evidence-based healthcare interventions. However, they come with associated time, cost and logistical burdens. Simulation-based…

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Development of an Implementation and Translation Spread and Scale-Up (I-TRANSS) Model (201)

Principal Investigator(s): Todd Molfenter, Ph.D.

There are few applied models for understanding large-scale spread and scale-up of evidence-based interventions. This project will create and test…

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