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Naltrexone for Overdose Prevention

NCT06633900

This study is recruiting at 1 US site in 1 state, according to its ClinicalTrials.gov record last updated .

Summary

The goal of this clinical trial is to see if an injectable medicine called naltrexone can prevent fentanyl overdose deaths in people who use other drugs (cocaine, methamphetamine). The main questions it aims to answer are: What are the challenges for implementing naltrexone as an overdose prevention strategy? Are injections of naltrexone effective for opioid overdose prevention among people who use stimulants? How often are people who use stimulants and do not intentionally use opioids unintentionally exposed to opioids?

Shortened from the sponsor's brief summary. View official record on ClinicalTrials.gov

Conditions studied

  • Overdose Accidental

Eligibility basics and study details

Study type
Interventional
Phase
Phase 2/3
Ages
18 years and older
Sex
All
Healthy volunteers
Accepted
Sponsor
University of California, San Francisco
Last updated on ClinicalTrials.gov
June 9, 2026

These are the basic criteria only. The full inclusion and exclusion criteria are on the official record, and the study team decides who can take part.

US recruiting sites

California · 1

  • Center on Substance Use and Health · San Francisco, CA

Source: ClinicalTrials.gov, data processed . Recruiting US sites filtered by distance and site status; summaries shortened.