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NCT00664664 · ClinicalTrials.gov registry record · Phase 2
Subjective Study to Assess the Efficacy of APD125 in Patients With Sleep Maintenance Insomnia
A Phase 2 study, sponsored by Arena Pharmaceuticals.
- Completed
- Registry status
- Phase 2
- Development phase
- 744
- Enrollment target
NCT00664664: Completed Phase 2 study, sponsored by Arena Pharmaceuticals.
NCT00664664 is a Phase 2 study that has completed, run by Arena Pharmaceuticals. The registered enrollment target is 744 participants, above the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (459% higher). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00664664, a Phase 2 study, has completed, sponsored by Arena Pharmaceuticals.
- COMPLETED
- Registry status
- Phase 2
- Development phase
- 744 participants
- Enrollment target
Study Summary
This study is designed to compare 2 doses of APD125 (20 mg and 40 mg) with placebo in otherwise healthy adults with primary insomnia primarily with complaints of maintaining sleep. Participants will be required to maintain a daily sleep dairy for up to 3 weeks while on study.
Interventions
- DRUG Placebo
- DRUG APD125
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 744 participants |
| Start Date | 2008-04 |
| Est. Completion | 2008-11 |
| Phase | Phase 2 |
What the finished NCT00664664 record still lists
NCT00664664 is an interventional study that assigns participants to a tested intervention. The registered 744 participants enrollment target is mid-sized for trials with a published cap, above the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (459% higher).
The record links to 0 conditions, and to 2 interventions - of which Placebo is the first listed.
NCT00664664 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00664664 about?
NCT00664664 is a clinical study titled "Subjective Study to Assess the Efficacy of APD125 in Patients With Sleep Maintenance Insomnia". This study is designed to compare 2 doses of APD125 (20 mg and 40 mg) with placebo in otherwise healthy adults with primary insomnia primarily with complaints of maintaining sleep. Participants will be required to maintain a daily sleep dairy for up to 3 weeks while on study.
What is the current status of trial NCT00664664?
This trial is currently completed. It is a Phase 2 study. The enrollment target is 744 participants. The study started on 2008-04. Estimated completion is 2008-11.
What interventions are being tested in trial NCT00664664?
The interventions under investigation include: Placebo (DRUG), APD125 (DRUG).
Who is sponsoring clinical trial NCT00664664?
This trial is sponsored by Arena Pharmaceuticals, which has 15 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT00664664's enrollment target sits among peer trials
744 44th of 2000 higher than 1,957 of 2,000 other Phase 2 trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Phase 2 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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