deltatrials
Completed OBSERVATIONAL NCT02225184

Impact of Delta Opioid Receptor Gene (OPRD1) Variations on Treatment Outcome in African Americans

The Impact of Delta Opioid Receptor Gene (OPRD1) Variations on Treatment Outcome in African Americans

Sponsor: National Institute on Drug Abuse (NIDA)

Conditions Drug Abuse/Dependence Genetic Underpinning of Substance Abuse Opiod-Related Disorders Polymorphism-genetic
Updated 11 times since 2017 Last updated: Jan 1, 2019 Started: Aug 23, 2014 Primary completion: Dec 31, 2018 Completion: Dec 31, 2018
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

This observational or N/A phase trial investigates Drug Abuse/Dependence and Genetic Underpinning of Substance Abuse and is currently completed. National Institute on Drug Abuse (NIDA) leads this study, which shows 11 recorded versions since 2014 — indicating substantial longitudinal coverage. The change history captured here reflects the iterative nature of clinical trial conduct.

Status Flow

~Jan 2017 – ~May 2017 · 4 months · monthly snapshotEnrolling By Invitation~May 2017 – ~Jun 2017 · 31 days · monthly snapshotEnrolling By Invitation~Jun 2017 – ~Apr 2018 · 10 months · monthly snapshotEnrolling By Invitation~Apr 2018 – ~May 2018 · 30 days · monthly snapshotEnrolling By Invitation~May 2018 – ~Jun 2018 · 31 days · monthly snapshotEnrolling By Invitation~Jun 2018 – ~Sep 2018 · 3 months · monthly snapshotEnrolling By Invitation~Sep 2018 – ~Feb 2019 · 5 months · monthly snapshotEnrolling By Invitation~Feb 2019 – ~Jan 2021 · 23 months · monthly snapshotCompleted~Jan 2021 – ~Jul 2024 · 42 months · monthly snapshotCompleted~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshotCompleted~Sep 2024 – present · 22 months · monthly snapshotCompleted

Change History

11 versions recorded

  1. Sep 2024 — Present [monthly]

    Completed

  2. Jul 2024 — Sep 2024 [monthly]

    Completed

  3. Jan 2021 — Jul 2024 [monthly]

    Completed

  4. Feb 2019 — Jan 2021 [monthly]

    Completed

    Status: Enrolling By Invitation → Completed

  5. Sep 2018 — Feb 2019 [monthly]

    Enrolling By Invitation

▶ Show 6 earlier versions

  1. Jun 2018 — Sep 2018 [monthly]

    Enrolling By Invitation

  2. May 2018 — Jun 2018 [monthly]

    Enrolling By Invitation

  3. Apr 2018 — May 2018 [monthly]

    Enrolling By Invitation

    Phase: NA → None

  4. Jun 2017 — Apr 2018 [monthly]

    Enrolling By Invitation NA

  5. May 2017 — Jun 2017 [monthly]

    Enrolling By Invitation NA

  6. Jan 2017 — May 2017 [monthly]

    Enrolling By Invitation NA

    First recorded

Aug 2014

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • National Institute on Drug Abuse (NIDA)
Data source: National Institutes of Health Clinical Center (CC)

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations