Evaluating laws to reduce firearm violence in California

RFA-CE-23-006, Leveraging Individual-Level Data to Evaluate Policies Targeting Acute Risk Periods for Firearm Violence: Extreme Risk Protective Orders and Waiting Periods in California

NIH-funded research University of Pittsburgh at Pittsburgh · NIH-10903708

This study looks at how certain laws that limit access to guns during dangerous times can help reduce the chances of suicide among gun owners and keep their loved ones safe from violence, using information from a large group of handgun owners in California.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUniversity of Pittsburgh at Pittsburgh NIH-funded
Lab location1 site (Pittsburgh, United States)
Project IDNIH-10903708 on NIH RePORTER

What this research studies

This research investigates the impact of laws designed to temporarily restrict firearm access during high-risk periods for violence and suicide. By analyzing data from a large cohort of handgun owners in California, the study aims to understand how Extreme Risk Protection Orders (ERPO) and mandatory waiting periods affect the risk of suicide among gun owners and homicide risk among their cohabitants. The research utilizes longitudinal data to provide insights into the effectiveness of these policies in preventing deaths during acute risk periods.

Who could benefit from this research

Good fit: Ideal candidates for this research include handgun owners and their cohabitants in California who may be affected by firearm access laws.

Not a fit: Patients who do not own firearms or do not reside in California may not receive any benefit from this research.

Why it matters

Potential benefit: If successful, this research could lead to improved policies that significantly reduce firearm-related deaths and enhance public safety.

How similar studies have performed: Previous research has shown mixed results regarding the effectiveness of similar policies, indicating that this study could provide valuable new insights.

Where this research is happening

Pittsburgh, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.