Doctor alert letters aim to curb opioid overprescribing

NCT ID NCT04758637

Completed Knowledge-focused Sponsor: University of Southern California Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested whether sending letters to doctors about their patients' opioid overdoses would reduce how often they prescribe strong painkillers. Researchers looked at 61 clinicians who had prescribed opioids to patients who later had a non-fatal or fatal overdose. The goal was to see if making the harm more visible would encourage safer prescribing.

What this could mean

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

Active substance: overdose notification letter
What this could lead to: If effective, this approach could help reduce unnecessary opioid prescriptions and prevent future overdoses.
What could go wrong: This is a small, completed trial with 61 clinicians. The intervention is behavioral and may not work in all settings or sustain long-term effects.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

opiate dependence opioid abuse

As listed by the trial registrant

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

OPIOID ABUSE

Contacts and locations

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Locations

Northwestern University

Chicago, Illinois, 60611, United States

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