Impact of Delta Opioid Receptor Gene (OPRD1) Variations on Treatment Outcome in African Americans
Public ClinicalTrials.gov record NCT02225184. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
The Impact of Delta Opioid Receptor Gene (OPRD1) Variations on Treatment Outcome in African Americans
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Background: \- Differences in peoples genes can make them respond to drugs in different ways. Methadone and buprenorphine are two drugs used to treat drug addiction. A study showed that African Americans with a certain genetic marker did better using one kind of drug treatment over the other. Researchers want to see if they can repeat these findings. They also want to study other things that affect how well people do in treatment. Objective: \- To see if certain genetic markers and other facts about a person s life can predict how well they do in treatment for addiction to opioids and cocaine. Eligibility: \- African American adults age 18 and over. They must be former or current participants in an Archway Treatment Clinic study. They must have been on a stable dose of either study drug for at least 12 weeks. They also must have given urine samples regularly for at least 10 weeks. Design: * Participants will come to the clinic for 1 visit lasting about 2 hours. * Participants will give 1 teaspoon of blood for genetic testing. They will be asked if their sample can be used in future studies. * If researchers cannot get enough blood, they will do a cheek swab. This will collect skin cells for genetic testing. * Participants will fill out 3 questionnaires. * Results of genetic testing and answers to questionnaires will be kept private.
Study identification
- NCT ID
- NCT02225184
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 81 participants
Conditions and interventions
Conditions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Aug 23, 2014 (Type not available)
- Primary completion
- Dec 31, 2018 (Actual)
- Completion
- Dec 31, 2018 (Actual)
- Last update posted
- Jan 3, 2019
2014 – 2018
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| National Institute on Drug Abuse | Baltimore | Maryland | 21224 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT02225184, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jan 3, 2019 · Synced Oct 17, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT02225184 live on ClinicalTrials.gov.