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Dose-response Study to Evaluate Safety, Efficacy, and Pharmacokinetics of PF-00217830 Compared With Placebo in Acute Exacerbation of Schizophrenia

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00580125
Recruitment Status : Completed
First Posted : December 24, 2007
Last Update Posted : April 18, 2012
Information provided by (Responsible Party):

Brief Summary:
The objective of this study is demonstrate efficacy and a dose-response in the treatment of acute exacerbation of schizophrenia in comparison to placebo.

Condition or disease Intervention/treatment Phase
Schizophrenia Drug: PF-00217830 Other: Placebo Drug: Aripiprazole Phase 2

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 164 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Phase 2, Multicenter, Double-Blind, Randomized, Fixed Dose, Parallel Group, 3-Week Inpatient Treatment Study To Evaluate The Dose-Response Relationship, Safety, Efficacy, And Pharmacokinetics Of PF-00217830 Compared With Placebo, Using Aripiprazole As A Positive Control, In The Treatment Of Acute Exacerbation Of Schizophrenia
Study Start Date : November 2007
Actual Primary Completion Date : September 2008
Actual Study Completion Date : September 2008

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Schizophrenia

Arm Intervention/treatment
Experimental: A2 Drug: PF-00217830
PF-00217830 5 mg, oral capsule, once daily for 21 days

Placebo Comparator: A5 Other: Placebo
Placebo, oral capsule, once daily for 21 days

Active Comparator: A4 Drug: Aripiprazole
Aripiprazole 15 mg, oral capsule, once daily for 21 days
Other Name: Abilify

Experimental: A3 Drug: PF-00217830
PF-00217830 15 mg, oral capsule, once daily for 21 days

Experimental: A1 Drug: PF-00217830
PF-00217830 2 mg, oral capsule, once daily for 21 days

Primary Outcome Measures :
  1. Clinical laboratory (Screening, Days 1, 7, 14, 21 and Followup); Fasting insulin, HDL, LDL, HbA1c , prolactin, ACTH, and cortisol (Days 1 and 21). [ Time Frame: 5 weeks ]
  2. Physical examination (Screening, Days 1 and 21), neurological examination (Days 1 and 21), and ECG (Screening, Days 1, 7, 14, 20, 21 and Followup). [ Time Frame: 5 weeks ]
  3. Positive and Negative Symptom Scale (PANSS) total score. [ Time Frame: Screening, Day 1, 3, 7, 14 and 21 ]
  4. Adverse events (Daily), weight (Screening, Days 1, and 21) and girth (Days 1 and 21), vital signs (Screening, Days 1, 3, 7, 14, 21 and Followup), [ Time Frame: 5 weeks ]
  5. Extrapyramidal Symptom Rating Scale (Screening, Days 1, 3, 7, 14 and 21) and the Stanford Sleepiness Scale (Days 1, 3, 7, 14 and 21). [ Time Frame: 4 weeks ]

Secondary Outcome Measures :
  1. PANSS-derived Marder factor scores (positive, negative, disorganized thought, hostility/excitement, anxiety/depression) [ Time Frame: Screening, Day 1, 3, 7, 14 and 21 ]
  2. PANSS positive, negative, and general psychopathology subscales [ Time Frame: Screening, Day 1, 3, 7, 14 and 21 ]
  3. Clinical Global Impression Scale-S (severity), and Clinical Global Impression Scale-I (improvement) [ Time Frame: Screening and Days 1, 3, 7, 14 and 21 ]
  4. NOSIE-30 subscales (irritability, manifest psychosis, personal neatness, retardation, social competence, and social interest) and the GAF. [ Time Frame: Days 1 and 21 ]
  5. Treatment Satisfaction Questionnaire for Medication (TSQM) [ Time Frame: Day 21 ]
  6. Pharmacokinetics [ Time Frame: Days 7, 14, 20, 21, before discharge and Followup ]
  7. PANSS-derived BPRS core psychosis items (conceptual disorganization, hallucinatory behavior, suspiciousness, unusual thought content) [ Time Frame: Screening and Days 1, 3, 7, 14 and 21 ]

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

Key inclusion criteria include:

  • Have a current diagnosis of schizophrenia.
  • Increase in symptoms over the past 2-4 weeks.
  • Willing to remain inpatients for the duration of the trial.

Exclusion Criteria:

  • Subjects with a current DSM-IV axis I diagnosis other than schizophrenia
  • Subjects who meet the DSM-IV criteria for psychoactive substance abuse and dependence
  • Subjects with a history of treatment resistant schizophrenia
  • Females of childbearing potential

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00580125

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United States, California
Pfizer Investigational Site
Garden Grove, California, United States, 92845
Pfizer Investigational Site
Torrance, California, United States, 90502
United States, District of Columbia
Pfizer Investigational Site
Washington, District of Columbia, United States, 20016
United States, Michigan
Pfizer Investigational Site
Detroit, Michigan, United States, 48201
United States, Missouri
Pfizer Investigational Site
Bridgeton, Missouri, United States, 63044-2588
Pfizer Investigational Site
Florissant, Missouri, United States, 63033
Pfizer Investigational Site
St. Charles, Missouri, United States, 63304
United States, New York
Pfizer Investigational Site
Brooklyn, New York, United States, 11203
Pfizer Investigational Site
Bangalore, Karnataka, India, 560 034
Pfizer Investigational Site
Mangalore, Karnataka, India, 575001
Pfizer Investigational Site
Udupi, Karnataka, India, 576 102
Pfizer Investigational Site
Pune, Maharashtra, India, 411 004
Pfizer Investigational Site
Pune, India, 411 030
Russian Federation
Pfizer Investigational Site
Gatchina district, Leningrad region, Russian Federation, 188357
Pfizer Investigational Site
Khotkovo, Russian Federation, 141371
Pfizer Investigational Site
Moscow, Russian Federation, 115522
Pfizer Investigational Site
St Petersburg, Russian Federation, 190121
Pfizer Investigational Site
St. Petersburg, Russian Federation, 194214
Pfizer Investigational Site
Simferopol, Crimea, Ukraine, 95006
Pfizer Investigational Site
Dnipropetrovsk, Ukraine, 49115
Pfizer Investigational Site
Donetsk, Ukraine, 83037
Pfizer Investigational Site
Kharkiv, Ukraine, 61018
Pfizer Investigational Site
Kharkiv, Ukraine, 61068
Pfizer Investigational Site
Kiev, Ukraine, 02660
Pfizer Investigational Site
Kyiv, Ukraine, 01030
Pfizer Investigational Site
Lugansk, Ukraine, 91045
Sponsors and Collaborators
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Study Director: Pfizer Call Center Pfizer

Additional Information:
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Responsible Party: Pfizer Identifier: NCT00580125    
Other Study ID Numbers: A7251006
First Posted: December 24, 2007    Key Record Dates
Last Update Posted: April 18, 2012
Last Verified: January 2011
Additional relevant MeSH terms:
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Schizophrenia Spectrum and Other Psychotic Disorders
Mental Disorders
Antidepressive Agents
Psychotropic Drugs
Antipsychotic Agents
Tranquilizing Agents
Central Nervous System Depressants
Physiological Effects of Drugs
Dopamine Agonists
Dopamine Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Serotonin 5-HT1 Receptor Agonists
Serotonin Receptor Agonists
Serotonin Agents
Serotonin 5-HT2 Receptor Antagonists
Serotonin Antagonists
Dopamine D2 Receptor Antagonists
Dopamine Antagonists