Targeting Orexin to Treat Nicotine Dependence
Public ClinicalTrials.gov record NCT03999099. 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.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Tobacco smoking continues to be the primary cause of preventable mortality in the United States. Despite the availability of smoking cessation aids, the majority of those trying to quit smoking end up relapsing. Thus, there is a strong need to evaluate alternative treatment targets such as orexin antagonists, which have shown promise in preclinical models at reducing the motivational aspects of drug use.The current work will evaluate the influence of orexin antagonism on several factors impacting the motivation to smoke.
Study identification
- NCT ID
- NCT03999099
- Recruitment status
- Active, not recruiting
- Study type
- Interventional
- Phase
- Phase 1
- Enrollment
- 45 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years to 50 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
- Sep 25, 2019
- Primary completion
- Jul 30, 2026
- Completion
- Dec 30, 2026
- Last update posted
- Jul 13, 2026
2019 – 2026
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| McLean Hospital | Belmont | Massachusetts | 02478 | — |
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 NCT03999099, 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 Jul 13, 2026 · Synced Sep 2, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03999099 live on ClinicalTrials.gov.