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Completed Phase 4 Interventional Results available

An Open-Label Study of Naltrexone in Adults With Attention Deficit Hyperactivity Disorder.

ClinicalTrials.gov ID: NCT01873729

Public ClinicalTrials.gov record NCT01873729. 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.

ClinicalTrials.gov public records Last synced Oct 8, 2026, 5:33 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The primary aim of this study is to assess whether naltrexone as a monotherapy is effective in treating Attention Deficit Hyperactivity Disorder (ADHD) in adults. Medications that increase dopamine are often effective in treating ADHD in adults. Since naltrexone is a kappa opioid receptor antagonist, it increases dopamine in the brain. We predict that naltrexone as a monotherapy will be effective for ADHD symptoms in adults with ADHD.

Study identification

NCT ID
NCT01873729
Recruitment status
Completed
Study type
Interventional
Phase
Phase 4
Enrollment
3 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years to 55 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Nov 2013 (Type not available)
Primary completion
Jun 2016 (Actual)
Completion
Jun 2016 (Actual)
Last update posted
Jan 13, 2017

2013 – 2016

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
Massachusetts General Hospital Boston Massachusetts 02114 —

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 NCT01873729, 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 13, 2017 · Synced Oct 8, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT01873729 live on ClinicalTrials.gov.

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