A smartphone app may help foster youth avoid drugs and alcohol

NCT ID NCT06875323

ENROLLING_BY_INVITATION Prevention Sponsor: University of California, San Francisco Source: ClinicalTrials.gov ↗

First seen Jul 29, 2026 · Last updated Jul 30, 2026 · Updated 1 time

Summary

This trial tests whether a digital app called FostrSpace can reduce substance use among youth aged 13 to 20 who are in foster care. The app is delivered through training sessions for CASA volunteers, who then support the youth in using it. Researchers will measure changes in drug, cigarette, and alcohol use over time. The goal is to see if a simple, scalable digital tool can make a difference in this high-risk group.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: a digital health application (app) called FostrSpace, delivered via ECHO training sessions for CASA volunteers
What this could lead to: If effective, this digital tool could offer a scalable, low-cost way to prevent substance use among a vulnerable population of foster youth.
What could go wrong: This is a relatively small trial testing a behavioral intervention, so results may not generalize widely. The app's success depends on consistent use and engagement by youth and volunteers.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

SUBSTANCE USE

Contacts and locations

Locations

UCSF Zuckerberg San Francisco General Hospital

San Francisco, California, 94131, United States

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