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NCT06995885

Development of an Interview-Informed Timeline Follow-Back (TLFB) for Opioid Use in the Era of Fentanyl

Enrolling by Invitation
Not specifiedAges 18–99Observational
National Institute on Drug Abuse (NIDA)
~30 participants
Updated 2026-08-03 on ClinicalTrials.gov

At a glance

Recruiting sites
0 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
At least three consecutive respondents (after an initial minimum of 25 respondents) for whom the OpiTLFB needs no further modification to capture their pattern of opioid use.
Measured over 6-24 months
+1 more outcome measured

Conditions

Substance Use Disorders (SUDs)

Explore related trials

Substance use disorder

Where it's being run

1 sites across 1 states
Maryland1

Study leadership

  • David H Epstein, Ph.D. · PRINCIPAL_INVESTIGATOR · National Institute on Drug Abuse (NIDA)

Who to contact

This trial hasn't published a contact. View it on ClinicalTrials.gov

What this trial measures

  • At least three consecutive respondents (after an initial minimum of 25 respondents) for whom the OpiTLFB needs no further modification to capture their pattern of opioid use.6-24 months

    Existing TLFB measures assess opioid use in terms that no longer match what PWUOs can actually obtain. This hampers both baseline characterization and quantification of opioid-use changes in study participants.

  • Associations between OpiTLFB indices (name, physical appearance, and effects of product) and urine-toxicology results.6-24 months

    This will help ensure that our typology of street opioids reflects real and consistent differences in product composition.