PARCA (a Digital Tool) to Improve Justice and Health (Parca)

September 26, 2025 updated by: George Mason University
The purpose of this study is to assess the effectiveness of the Probation/Parole and Reentry Coach Application (PARCA)-a mobile application that allows justice-involved people to set and manage personal goals to support sustained, successful community supervision. Through this study, we aim to conduct surveys and interviews aimed to gain a better understanding of ways to improve the substance use treatment process, connections between clients and officers, and goal selection and achievement for clients using the PARCA app

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Detailed Description

This study tests a new technological intervention referred to as Probation/Parole and Reentry Coach Application (PARCA). The application uses motivational interviewing and cognitive behavioral techniques to engage clients in problem solving by identifying issues, identifying goals, making progress towards the goals, incentivizing clients to achieve the goals, and working towards completion of supervision. Officers can view the goals, progress, and points accumulated to improve supervision outcomes.

Study Type

Interventional

Enrollment (Estimated)

50

Phase

  • 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

  • Name: Faye S Taxman, Ph.D.
  • Phone Number: 7039938555
  • Email: ftaxman@gmu.edu

Study Locations

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

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

All officers that supervise individuals All individuals on supervision that indicate drug use -

Exclusion Criteria:

Individuals that have poor performance on their job clients have serious mental health disorders

-

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: Treatment
  • Allocation: Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: PARCA App
Officers and clients are using the application of PARCA which is on their phone and a web-based application. PARCA is a tool to detail goals and progress towards goals
Behavioral: PARCA
PARCA is an s an app to facilitate goal management, resource allocation, and managing progress.
No Intervention: Standard Supervision
Officers and clients are not using any new procedures or tools; they are using standard care.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Days till the Individual Initiates Treatment
Time Frame: The timeframe is 365 days
This represents the number of days that the individual starts treatment based on the day that they started supervision. This can be measured in the supervision records. This is an event in the record system like an electronic health record.
The timeframe is 365 days

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Treatment Sessions in 90 days
Time Frame: For 365 days
This represents the number of times the individual participated in treatment during a 90 day window. This can be measured from supervision records.
For 365 days

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Drug Tests
Time Frame: through study completion, an average of 1 year
Test positive for an illicit drug
through study completion, an average of 1 year
Number of times the individual has been arrested or technically violated probation
Time Frame: This is for 365 days
This criminal justice outcome refers to other criminal behavior and/or failure to abide by supervision conditions. Both reflect events that can be measured in the supervision records.
This is for 365 days

Collaborators and Investigators

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

Sponsor

George Mason University

Collaborators

National Institute on Drug Abuse (NIDA)
Worcester Polytechnic Institute
RTI International
Q2i, LLC

Investigators

  • Principal Investigator: Faye S. Taxman, PhD, George Mason University

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 (Actual)

March 1, 2025

Primary Completion (Estimated)

May 1, 2027

Study Completion (Estimated)

May 1, 2027

Study Registration Dates

First Submitted

March 19, 2025

First Submitted That Met QC Criteria

September 26, 2025

First Posted (Estimated)

September 30, 2025

Study Record Updates

Last Update Posted (Estimated)

September 30, 2025

Last Update Submitted That Met QC Criteria

September 26, 2025

Last Verified

September 1, 2025

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • GeorgeMasonU
  • R42DA056255 (U.S. NIH Grant/Contract)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

These are confidential

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

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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