ClinicalTrials.gg
RecruitingNCT05887973Updated Aug 31, 2026

Addressing Root Causes for Gun Violence Prevention (ARC-GVP)

An observational study in Violence, Adolescent and Firearm Injury, sponsored by University of Michigan. Recruiting at 1 site in United States. Open to participants aged 14 Years to 24 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-08-31.

Sponsored by University of Michigan · Observational

From the registry’s dates

  • Started Jun 2022; still recruiting 4 years 4 months later.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
250
Ages
14 Years to 24 Years
Sex
All
01

Study summary

The goal of this study is to help build the evidence base for a locally-relevant youth firearm violence prevention program in Washington D.C., a city experiencing disparities in youth firearm violence outcomes.

The main question it aims to answer is:

How is youth participation in the summer youth employment program, the True Reasons I Grabbed the Gun Evolved from Risk (The T.R.I.G.G.E.R Project), which is designed to address root causes of gun violence, associated with individual youth behavioral outcomes, including pro-social involvement, aggression, and firearm-related attitudes and behaviors?

Read the detailed description

The goal of this study is to help build the evidence base for a locally-relevant youth firearm violence prevention program in a city experiencing disparities in youth firearm violence outcomes. The main question it aims to answer is:

How is youth participation in a summer youth employment program that is designed to address root causes of gun violence (The T.R.I.G.G.E.R project), associated with individual youth behavioral outcomes, including pro-social involvement, retaliatory attitudes, aggression, and firearm behaviors?

To examine this question, participants will be invited to complete four surveys over the course of one year to assess attitudinal and behavioral change:

  • A pre-test at the start of the program
  • A first post-test 2-4 weeks following the conclusion of the program
  • A second post-test 6 months following the conclusion of the program
  • A third and final post-test 12 months following the conclusion of the program
02

Conditions studied

  • Violence
  • Adolescent
  • Firearm Injury
  • Aggression

Browse trials for

Keywords

  • Youth Violence Prevention
  • Gun Violence Prevention
  • Positive Youth Development
03

In context

Aggression

248 studies on the registry are indexed under Aggression; 41 are open to participants now.

This study's planned enrollment of 250 is above the median of 103 across 21 observational studies indexed under Aggression.

Browse Aggression studies →

Lead sponsor

University of Michigan is the lead sponsor of 1,506 studies on the registry; 192 are open to participants now.

Of its 169 completed or terminated interventional studies of FDA-regulated products, 133 (79%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
14 Years to 24 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Youth in Washington D.C. who are participating in The T.R.I.G.G.E.R Project, a grassroots youth firearm violence prevention program

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Youth in Washington D.C. who are participating in The T.R.I.G.G.E.R Project, a grassroots youth firearm violence prevention program

Exclusion criteria

Exclusion Criteria:

  • Emancipated minors
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
250 participants (estimated)
Patient registry
No

Groups and cohorts

  • Wave 1

    Youth participants who are enrolled in The T.R.I.G.G.E.R Project's summer youth employment program in 2022

    Behavioral: The T.R.I.G.G.E.R Project

  • Wave 2

    Youth participants who are enrolled in The T.R.I.G.G.E.R Project's summer youth employment program in 2023

    Behavioral: The T.R.I.G.G.E.R Project

  • Wave 3

    Youth participants who are enrolled in The T.R.I.G.G.E.R Project's summer youth employment program in 2024

    Behavioral: The T.R.I.G.G.E.R Project

  • Wave 4

    Youth participants who are enrolled in The T.R.I.G.G.E.R Project's summer youth employment program in 2025

    Behavioral: The T.R.I.G.G.E.R Project

Interventions

  • BehavioralThe T.R.I.G.G.E.R Project

    The T.R.I.G.G.E.R Project includes the following core components to address root causes of gun violence: * Summer Employment * Social and Emotional Learning * Future Orientation * Adult and Peer Support * Critical Consciousness * Civic Efficacy and Engagement

06

What researchers measure

Primary outcomes

  1. Change in Civic Efficacy

    The investigators will assess change in civic efficacy (i.e., youth participants' sense of belief that they can create positive change in their communities) over time using the 3-item Civic Efficacy scale; the unit(s) of measurement are the Mean and Standard Deviation of scale scores; Minimum Value: 1 Maximum Value: 5, higher scores indicate a better outcome

    Time frame: Outcomes will be measured at 4 time points over 1 year: at the start of the summer programs, 2-4 weeks post, 6-months post, and 1-year post participation

  2. Change in Pro-Social Involvement

    The investigators will assess change in pro-social involvement (i.e., youth participants' involvement in pro-social community organizations and activities) over time using an 8-item adapted Participation in Groups and Voluntary Organizations scale; the units of measurement are the Mean and Standard Deviation of scale scores; Minimum Value: 0 Maximum Value: 8; higher scores indicate a better outcome

    Time frame: Outcomes will be measured at 4 time points over 1 year: at the start of the summer programs, 2-4 weeks post, 6-months post, and 1-year post participation

  3. Change in Attitudes towards Violence and Retaliation

    The investigators will assess change in youth participants' attitudes toward violence and retaliation over time using a 3-item Retaliatory Attitudes scale; the units of measurement are the Mean and Standard Deviation of scale scores; Minimum Value: 1 Maximum Value: 5; lower scores indicate a better outcome

    Time frame: Outcomes will be measured at 4 time points over 1 year: at the start of the summer programs, 2-4 weeks post, 6-months post, and 1-year post participation

  4. Change in Aggressive Behavior

    The investigators will assess change in non-firearm related aggressive behavior (i.e., fighting, non-firearm weapon carriage) over time using a 3-item Aggressive Behaviors scale; the unit(s) of measurement are the Mean and Standard Deviation of scale scores; Minimum: 0, Maximum: 15, lower scores indicate a better outcome

    Time frame: Outcomes will be measured at 4 time points over 1 year: at the start of the summer programs, 2-4 weeks post, 6-months post, and 1-year post participation

  5. Change in Firearm Carriage Frequency

    The investigators will assess change in the frequency of firearm carriage (for any reason besides hunting, target shooting, competitive shooting, or recreation) over time using 1-item; the unit(s) of measurement are the Mean and Standard Deviation of scale scores; Minimum: 1 Maximum: 7, lower scores indicate a better outcome

    Time frame: Outcomes will be measured at 4 time points over 1 year: at the start of the summer programs, 2-4 weeks post, 6-months post, and 1-year post participation

  6. Change in Firearm Use

    The investigators will assess change in youth participants' firearm use (i.e., handling a gun, firing a gun, holding a gun in a selfie) over time, using a three-item Firearm Use scale; the unit(s) of measurement are the Means and Standard Deviations of scale scores, Minimum: 0 Maximum: 18, lower scores indicate a better outcome

    Time frame: Outcomes will be measured at 4 time points over 1 year: at the start of the summer programs, 2-4 weeks post, 6-months post, and 1-year post participation

  7. Change in Firearm Aggression

    The investigators will assess change in youth participants' firearm aggression (i.e., threatening someone with a gun, firing at or around someone), using a two-item scale adapted from the Revised Conflict Tactics Scale; the unit(s) of measurement are the Means and Standard Deviations of scale scores, Minimum: 0 Maximum: 10, lower scores indicate a better outcome

    Time frame: Outcomes will be measured at 4 time points over 1 year: at the start of the summer programs, 2-4 weeks post, 6-months post, and 1-year post participation

07

Study locations

1 of 1 sites recruiting
08

References and documents

Publications

  • Crocetti E, Jahromi P, Meeus W. Identity and civic engagement in adolescence. J Adolesc. 2012 Jun;35(3):521-32. doi: 10.1016/j.adolescence.2011.08.003. Epub 2011 Aug 24. PubMed 21868083 ↗
  • Copeland-Linder N, Jones VC, Haynie DL, Simons-Morton BG, Wright JL, Cheng TL. Factors associated with retaliatory attitudes among African American adolescents who have been assaulted. J Pediatr Psychol. 2007 Aug;32(7):760-70. doi: 10.1093/jpepsy/jsm007. Epub 2007 Apr 2. PubMed 17403911 ↗
  • Black, S., & Hausman, A. (2008). Adolescents' views of guns in a high-violence community. Journal of Adolescent Research, 23(5), 592-610. http://doi.org/10.1177/0743558408322142
  • Multisite Violence Prevention Project. The multisite violence prevention project: background and overview. Am J Prev Med. 2004 Jan;26(1 Suppl):3-11. doi: 10.1016/j.amepre.2003.09.017. PubMed 14732182 ↗
  • Straus, M., Hamby, S., Boney-McCoy, S., Sugarman, D. (1996). The Revised Conflict Tactics Scales (CTS2): Development and preliminary psychometric data. Journal of Family Issues, 17(3), 283-316.

Individual participant data

Plan to share: Yes — The investigators will archive the data collected for this study in the Institute for Firearm Injury Prevention (IFIP) Data Repository so that the data will be connected to a national data resource on firearm injury prevention research. The IFIP repository is housed online at the Inter-University Consortium for Social and Political Research (ICPSR) (https://www.openicpsr.org/openicpsr/facts-open). All data uploaded to the repository will be de-identified, such that all sensitive, identifiable, or potentially identifiable information will be removed from the dataset. At a minimum, each data deposit in the archive will include the data set(s), codebook, data collection instrument, and a summary of the project.

Supporting information: Study protocol

Time frame: All final data collected during the course of this research will be disseminated in a timely manner and as completely and accurately as possible, in accordance with Centers for Disease Control policy. The investigators will make the final version of the collected public health datasets available in a non-proprietary format within 30 months after the end of data collection in September 2026 via the Institute for Firearm Injury Prevention (IFIP) Data Repository portal. All identifiers will be removed from the data prior to dissemination. In compliance with the 1996 Health Insurance Portability and Accountability Act (HIPPA) wherever applicable. The data will be provided in standard file formats accompanied by the necessary documentation to allow for independent analyses. Once deposited, the de-identified data will be publicly available indefinitely.

Access criteria: The de-identified data set(s) will be made publicly available without restrictions

Data sharing details ↗ · www.openicpsr.org

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 31, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05887973
Responsible party
Marc A. Zimmerman (Principal Investigator, University of Michigan) — Principal investigator
First posted
Jun 5, 2023
Start date
Jun 27, 2022
Primary completion
Sep 29, 2026 (estimated)
Completion
Sep 29, 2026 (estimated)
Last update
Aug 31, 2026

Study contacts

Laney Rupp, MPH
Contact
laneyr@umich.edu
734-647-6469
Marc Zimmerman, PhD
principal investigator · University of Michigan

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Interested in this study?

Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.

Contact study team

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion