A Comparison of the Physiological and Behavioral Effects of Suvorexant and Zolpidem in Healthy Volunteers: A Randomized, Double-blind, Placebo Controlled Study
Public ClinicalTrials.gov record NCT04273776. 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.
Study identification
- NCT ID
- NCT04273776
- Recruitment status
- Active, not recruiting
- Study type
- Interventional
- Phase
- Early Phase 1
- Lead sponsor
- Walter Reed Army Institute of Research (WRAIR)
- Federal
- Enrollment
- 90 participants
Conditions and interventions
Conditions
Interventions
- Suvorexant 10 mg Drug
- Zolpidem Drug
- Placebos Drug
Drug
Eligibility (public fields only)
- Age range
- 18 Years to 39 Years
- 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
- Nov 30, 2019
- Primary completion
- Nov 20, 2024
- Completion
- Dec 11, 2025
- Last update posted
- Apr 2, 2025
2019 – 2025
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Walter Reed Army Institute of Research | Silver Spring | Maryland | 20910 | — |
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 NCT04273776, 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 Apr 2, 2025 · Synced Jun 26, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04273776 live on ClinicalTrials.gov.