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Clinical trialNCT03932799CompletedObservational

Comparing State Payer Strategies to Prevent Unsafe Opioid Prescribing

SponsorUniversity of WashingtonEnrollment5,411Opioid UseOpioid-Related Disorders
View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

This study examines the comparative effectiveness of opioid review programs in reducing unsafe opioid prescribing in two states: prospective prior authorization (PA) with hard stops in Washington and retrospective review (RR) with prescriber notification in Ohio.

Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

2 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States
  • the Ohio State University

    Columbus, Ohio, United States

  • University of Washington

    Seattle, Washington, United States

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

No drug or biological interventions are in our data for this study. It may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start
6 Aug 2019
Primary completion
31 Mar 2022
Completion
30 Jun 2022
Last update posted
28 Sept 2023
Registered enrollment
5,411
Registry id
NCT03932799

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 24 Aug 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.