Preventing Overdose and Promoting Recovery Through Court Navigation (POPCORN)

July 10, 2026 updated by: Bradley Ray, RTI International

Hybrid Type I Trial of a Peer-Led Court Navigation Program to Improve Substance Use Disorder Treatment Receipt and Reduce Overdose and Incarceration Among People Passing Through Courthouses

This project is a hybrid type I clinical trial to assess the effectiveness and implementation determinants of a peer-led court navigation program for people who use drugs and are passing through county courthouses. Courthouses are a common point of contact for people with behavioral health needs, but outside of specialty court models, they remain underexplored as a setting for connecting people to substance use disorder treatment and related services. This study will test whether court navigation led by peer recovery specialists can increase receipt of substance use disorder treatment and reduce overdose and incarceration. Peer court navigators will meet with participants in courthouse settings, assess their needs, provide information and referrals, and offer follow-up support for up to 3 months. Peer recovery specialists, who have lived experience with substance use recovery, are increasingly being integrated into criminal legal and community-based settings; however, peer-led court navigation remains an innovative and understudied approach.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
600

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • United States
    • Indiana
      • South Bend, Indiana, United States, 46601
        • St. Joseph County Courthouse 1
        • Contact:
        • Contact:
    • North Carolina
      • Research Triangle Park, North Carolina, United States, 27709
        • RTI International
        • Contact:
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Aged 18 years or older
  • Current resident of Indiana
  • Able to complete study procedures in English
  • Meets at least one of the following criteria: used heroin, fentanyl, methamphetamine, or cocaine in the past 12 months; is interested in resources or treatment for a substance use disorder; or experienced an opioid-related overdose in the past 12 months

Exclusion Criteria:

  • Has been sentenced to incarceration in jail or prison for the next 12 months

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Health Services Research
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Peer court navigation
CourtConnect is the intervention. It connects individuals in courthouses with peer court navigators who provide information, referrals, and support to address substance use disorder treatment needs and related health and social needs. Navigation begins in the courthouse and continues in the community through follow-up support for up to 3 months.
Behavioral: CourtConnect
CourtConnect connects individuals in courthouses with peer court navigators who provide information, referrals, and support to address substance use disorder treatment needs and related health and social needs. Navigation begins in the courthouse and continues in the community through follow-up support for up to 3 months.
Active Comparator: Information only
Participants assigned to the information-only group receive information about health and social services in the community from a non-peer research assistant. They do not receive peer court navigation or follow-up support from a peer court navigator.
Other: Information Only
Participants assigned to the information-only group receive information about health and social services in the community from a non-peer research assistant. They do not receive peer court navigation or follow-up support from a peer court navigator.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Administratively documented substance use disorder treatment engagement
Time Frame: 90 days after baseline
This participant-level outcome will indicate whether a participant has any administratively documented substance use disorder treatment engagement within 90 days after baseline. Treatment engagement will be determined from linked state administrative records, including Medicaid claims for substance use disorder treatment services and prescription drug monitoring program records showing dispensed medications used to treat substance use disorder. For participants without administratively documented substance use disorder treatment during the 90 days before baseline, a qualifying post-baseline record will be classified as treatment initiation. For participants with administratively documented substance use disorder treatment during the 90 days before baseline, a qualifying post-baseline record will be classified as continued treatment engagement. The outcome will be reported as the proportion of participants in each study arm with administratively documented treatment engagement.
90 days after baseline

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Number of participants with a fatal or nonfatal overdose
Time Frame: 12 months after baseline
Fatal and nonfatal overdose will be measured using statewide vital records and emergency medical records from ambulance services and hospital emergency departments. Participants will be classified as having experienced an overdose if records show a fatal overdose or an encounter for a nonfatal overdose during the 12 months after baseline.
12 months after baseline
Number of participants with a jail booking or prison entry
Time Frame: 12 months after baseline
Incarceration through jail booking or prison entry will be measured using statewide criminal legal records. Participants will be classified as having experienced incarceration if records show a booking into a jail facility or entry into the state prison system during the 12 months after baseline.
12 months after baseline

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
RTI International

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
National Institute on Drug Abuse (NIDA)

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 1, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 1, 2028

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
May 1, 2030

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 3, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 10, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 14, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 14, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 10, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • R01DA064492 (U.S. NIH Grant/Contract)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

The investigators will enroll 600 subjects over 24 months with 12 months of follow-up data by linking administrative records (e.g., prescription fills, emergency department/emergency medical services encounters, mortality, arrests/jail bookings) to survey contents that will include demographics, substance use disorder and treatment history, criminal legal system involvement, social constructs (self-efficacy, motivation, stigma), and harmonized measures. The National Institutes of Health requires that the study team release study data. The investigators will preserve and share de-identified survey datasets (with codebooks), and project documentation (protocols, instruments); derived variables from linked administrative data will be shared, while raw state administrative source files obtained under data use agreements will not be shared. The publicly released scientific data will include only fully de-identified data.

IPD Sharing Time Frame

IPD and additional supporting information will be archived in the National Addiction & HIV Data Archive Program (NAHDAP), assigned persistent identifiers, and made available as soon as possible and no later than the earlier of the primary publication or the end of the performance period, whichever comes first.

IPD Sharing Access Criteria

After project completion, only de-identified datasets will be made available as public-use files and deposited in repositories for broader research, teaching, replication. Shared data will be provided in open, non-proprietary formats, along with parallel Stata/R scripts and a README so that no specialized software is required to access or manipulate the data. Publicly shared datasets will receive a DOI to facilitate sharing, citation, and version control. Access will be controlled when there is any non-trivial re-identification risk or when required by data use agreements. In those cases, repositories will gate access under standard data use agreements that prohibit re-identification and onward sharing, require secure storage and destruction at project end, and log requestor credentials and approved uses. Raw state administrative source files received under data use agreements will not be shared; only de-identified, derived variables constructed from those sources will be deposited.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • ANALYTIC_CODE

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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