Independent directory Public ClinicalTrials.gov records United States
ClinicalTrials.gov record
Completed Phase 2 Interventional

A Dose-ranging, Multicenter Polysomnography Trial of PD 0200390 in Adults With Primary Insomnia

ClinicalTrials.gov ID: NCT00551148

Public ClinicalTrials.gov record NCT00551148. 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 Jun 26, 2026, 6:51 AM EDT

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

Official title

PD 0200390 Dose-ranging Trial: A Randomized, Double-blind, Placebo-controlled, 5-way Crossover, Multicenter Polysomnography Trial of PD 0200390 in Adults With Primary Insomnia

Study identification

NCT ID
NCT00551148
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Lead sponsor
Pfizer
Industry
Enrollment
92 participants

Conditions and interventions

Interventions

  • PD 0200390 Drug
  • Placebo Other

Drug · Other

Eligibility (public fields only)

Age range
18 Years to 64 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 30, 2007
Primary completion
Dec 31, 2007
Completion
Dec 31, 2007
Last update posted
Jul 24, 2012

2007 – 2008

United States locations

U.S. sites
16
U.S. states
9
U.S. cities
15
Facility City State ZIP Site status
Pfizer Investigational Site Glendale Arizona 85306
Pfizer Investigational Site Phenoix Arizona 85006
Pfizer Investigational Site Phoenix Arizona 85006
Pfizer Investigational Site Tucson Arizona 85712
Pfizer Investigational Site San Diego California 92103
Pfizer Investigational Site Miami Florida 33143
Pfizer Investigational Site Naples Florida 34110
Pfizer Investigational Site South Miami Florida 33143
Pfizer Investigational Site Atlanta Georgia 30328
Pfizer Investigational Site Atlanta Georgia 30342
Pfizer Investigational Site Overland Park Kansas 66212
Pfizer Investigational Site Crestview Hills Kentucky 41017
Pfizer Investigational Site New York New York 10019
Pfizer Investigational Site Cary North Carolina 27511
Pfizer Investigational Site Raleigh North Carolina 27612
Pfizer Investigational Site Cincinnati Ohio 45227

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 NCT00551148, 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 24, 2012 · Synced Jun 26, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete protocol, eligibility criteria, and contact information for NCT00551148 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →