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

> **NCT02225184** · — · COMPLETED · sponsor: **National Institute on Drug Abuse (NIDA)** · enrollment: 81 (actual)

## Conditions studied

- Genetic Underpinning of Substance Abuse
- Polymorphism-genetic
- Drug Abuse/Dependence
- Opiod-Related Disorders

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT02225184
- **Lead sponsor:** National Institute on Drug Abuse (NIDA)
- **Sponsor class:** NIH
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2014-08-23
- **Primary completion:** 2018-12-31
- **Final completion:** 2018-12-31
- **Target enrollment:** 81 (ACTUAL)
- **Last updated:** 2019-01-03


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT02225184

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT02225184, "Impact of Delta Opioid Receptor Gene (OPRD1) Variations on Treatment Outcome in African Americans". Retrieved via AI Analytics 2026-07-08 from https://api.ai-analytics.org/clinical/NCT02225184. Licensed CC0.

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