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Safety And Efficacy Of Ziprasidone In Adolescents With Schizophrenia

This study has been terminated.
(Please see Detailed Description for termination reason.)
Sponsor:
Information provided by (Responsible Party):
Pfizer
ClinicalTrials.gov Identifier:
NCT00257192
First received: November 21, 2005
Last updated: December 2, 2011
Last verified: December 2011
  Purpose

The purpose of this study is to determine if flexibly-dosed ziprasidone is safe and effective for the treatment of adolescents (ages 13-17) with schizophrenia


Condition Intervention Phase
Schizophrenia
Drug: placebo
Drug: Ziprasidone oral capsules
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Six Week, Double-Blind, Placebo Controlled Phase III Trial Evaluating The Efficacy, Safety And Pharmacokinetics Of Flexible Doses Of Oral Ziprasidone In Adolescent Subjects With Schizophrenia

Resource links provided by NLM:


Further study details as provided by Pfizer:

Primary Outcome Measures:
  • Change From Baseline in Brief Psychiatric Rating Scale - Anchored (BPRS-A) Total Score at Week 6 [ Time Frame: Baseline, Week 6 ] [ Designated as safety issue: No ]
    BPRS-A: 18-item clinician rated scale to assess somatic concern, anxiety, emotional withdrawal, disorganization, hallucinatory behavior, guilt feelings, suspiciousness, disorientation, tension, mannerisms, posturing, grandiosity, depressive mood, hostility, motor retardation, uncooperativeness, unusual thought content, blunted affect, and excitement. Ratings anchored to improve consistency for a single rater over time or between raters. Items rated on 7-point scale 0 (not present) to 6 (extremely severe). Total score=sum of items (range 0 to 108); higher scores indicate increased pathology.


Secondary Outcome Measures:
  • Change From Baseline in Clinical Global Impression of Severity (CGI-S) Score at Week 6 [ Time Frame: Baseline, Week 6 ] [ Designated as safety issue: No ]
    CGI-S: single-item clinician rated scale to rate the severity of a subject's illness over time. Scores range from 1 (normal, not at all ill) to 7 (among the most severely ill subjects); higher score indicates more affected.

  • Change From Baseline in Positive and Negative Syndrome Scale (PANSS) - Total Score at Week 6 [ Time Frame: Baseline, Week 6 ] [ Designated as safety issue: No ]
    PANSS: 30-item clinician-rated scale to measure severity of psychopathology (16 items); positive scale (7 items); negative scale (7 items); summarized as positive score, negative score, and total score. Items scored on anchored Likert scale rated 1 (absent symptoms) to 7 (extreme); scores above 1 indicate clinical symptom is present; scores from 2 to 7 indicate increased severity. Total score range 30 to 210: higher score indicates greater severity.

  • Change From Baseline in PANSS: Positive and Negative Subscales at Week 6 [ Time Frame: Baseline, Week 6 ] [ Designated as safety issue: No ]
    PANSS: 30-item clinician-rated scale to measure severity of psychopathology (16 items); positive scale (7 items); negative scale (7 items); summarized as positive score, negative score, and total score. Items scored on anchored Likert scale rated 1 (absent symptoms) to 7 (extreme); scores above 1 indicate clinical symptom is present; scores from 2 to 7 indicate increased severity. Total score range 30 to 210: higher score indicates greater severity.

  • Clinical Global Impression of Improvement (CGI-I) Score at Week 6 [ Time Frame: Baseline, Week 6 ] [ Designated as safety issue: No ]
    CGI-I: single-item clinician rated scale used to assess the subject's improvement or worsening from baseline. Scores range from 1 (very much improved) to 4 (no change) to 7 (very much worse); higher score indicates more affected.

  • Change From Baseline in Children's Global Assessment Scale (CGAS) [ Time Frame: Baseline, Week 2, Week 4, Week 6, Early termination (ET) ] [ Designated as safety issue: No ]
    CGAS: clinician-rated global assessment item for children based on symptoms and social functioning in home, school, and community settings. Scores on this single item range from 1 to 100 (higher levels indicate greater health) with descriptive anchors for every 10-point interval. Scores above 70 on this scale are considered within the "normal" range; lower score indicates need for increased supervision.

  • Change From Baseline in Child Health Questionnaire (CHQ) [ Time Frame: Baseline, Week 6, ET ] [ Designated as safety issue: No ]
    CHQ: 50-item, 15 subscale parent or legal guardian assessed instrument of child's physical, emotional, social well-being, and relative burden of disease on the parents; rated on Likert-type scale: range 0 to 100; higher scores indicate a more positive health status. Global indicators for Physical Health and Psychosocial Health are weighted composites derived from subscale items using scoring algorithms (transformed scores); range 0 to 100: higher scores indicate more positive health status.

  • Change From Baseline in Children's Problem Behavior and Aggression Questionnaire (CPBAQ) Total Score [ Time Frame: Baseline, Week 1 through Week 6 ] [ Designated as safety issue: Yes ]
    CPBAQ: 19-item parent or legal guardian completed questionnaire to rate the child's verbal (such as yelling or cursing) and physical aggression (such a fighting with peers or being cruel to an animal) during the past week. Behavior was rated on a 4-point scale; range 0 (behavior did not occur or was not a problem) to 3 (behavior occurred a lot or was severe problem). Total score range 0 to 57; higher scores indicate a greater frequency and severity of aggression.

  • Change From Baseline in Child Depression Rating Scale - Revised (CDRS-R): Total Score [ Time Frame: Baseline, Week 1 through Week 6 ] [ Designated as safety issue: Yes ]
    CDRS-R: clinician-rated interview-based scale (with both child and parent or guardian) to assess 17 distinct symptom areas to derive an index of depression severity. Discrepancies between informants' responses were resolved by using most impaired rating given by valid informant. Rated on a 7-point scale; range from 1 (no impairment) to 7 (indicates greater impairment). Total score calculated as sum of the 17 items (range 1 to 119); higher score indicates greater impairment.

  • Change From Baseline in Child Depression Rating Scale - Revised (CDRS-R): Suicide Ideation Item 13 [ Time Frame: Baseline, Week 1 through Week 6 ] [ Designated as safety issue: Yes ]
    CDRS-R: clinician-rated interview-based scale (with both child and parent or guardian) to assess 17 distinct symptom areas to derive an index of depression severity. Discrepancies between informants' responses were resolved by using most impaired rating given by valid informant. Suicide Ideation (Item 13) detects changes in suicidality over time. Rated on a 7-point scale; range from 1 (no impairment) to 7 (indicates greater impairment).

  • Change From Baseline in Child Depression Rating Scale - Revised (CDRS-R): Impaired Schoolwork Item 1 [ Time Frame: Baseline, Week 2, Week 6 ] [ Designated as safety issue: Yes ]
    Clinician-rated interview-based scale (with both child and parent or guardian) to assess 17 distinct symptom areas to derive an index of depression severity. Discrepancies between informants' responses resolved by using most impaired rating given by valid informant. Impaired Schoolwork (Item 1) assesses school function for the subgroup of subjects reported to be in school. Rated on a 7-point scale; range from 1 (no impairment) to 7 (indicates greater impairment).

  • Change From Baseline in CNS Vital Signs Cognitive Test Battery (Includes Sedation Item): Subscales [ Time Frame: Baseline, Week 6, ET ] [ Designated as safety issue: Yes ]
    A computerized subject-administered test battery with subtests for verbal and visual memory, processing speed, nonverbal reasoning, executive functioning, working memory, and sustained attention. A computerized 7-point sedation item (0 [not sleepy] to 10 [very sleepy]) was completed prior to test battery. The Neurocognitive index score was derived from subtest scores per an algorithm. The index score and subtest scores assessed the subject's changes in cognition. Scores were rated as above average (score >109), average (90 to 109), below average (80 to 89), or well below average (70 to 79).

  • Change From Baseline in CNS Vital Signs Cognitive Test Battery: Neurocognitive Index [ Time Frame: Baseline, Week 6, ET ] [ Designated as safety issue: Yes ]
    A computerized subject-administered test battery with subtests for verbal and visual memory, processing speed, nonverbal reasoning, executive functioning, working memory, and sustained attention. A computerized 7-point sedation item (0 [not sleepy] to 10 [very sleepy]) was completed prior to test battery. The Neurocognitive index score was derived from subtest scores per an algorithm. The index score and subtest scores assessed the subject's changes in cognition. Scores were rated as above average (score >109), average (90 to 109), below average (80 to 89), or well below average (70 to 79).

  • Change From Baseline in Movement Disorder Scales: Simpson-Angus Rating Scale (SARS) [ Time Frame: Baseline, Week 1 through Week 6 ] [ Designated as safety issue: Yes ]
    SARS: 10-item clinician rated instrument to assess parkinsonian symptoms (7 items) and related extrapyramidal side effects (3 items): gait, arm dropping, shoulder shaking, elbow rigidity, leg pendulousness, glabellar tap, tremor, and salivation. Head dropping (modified SARS item 7) substituted for head rotation. Anchored 5-point scale: range 0 (absence of condition, normal) to 4 (most extreme form of condition). Total score is sum of individual item scores (range 0 to 40); higher score indicates more affected.

  • Change From Baseline in Movement Disorder Scales: Barnes Akathisia Rating Scale (BAS) Global Clinical Assessment Item [ Time Frame: Baseline, Week 1 through Week 6 ] [ Designated as safety issue: Yes ]
    BAS: clinician rated scale to assess akathisia to determine the degree of subjective restlessness and distress associated with restlessness. First 3 items (Objective, Subjective, and Distress related to restlessness) rated on a 4-point scale with range 0 (no symptoms) to 3 (increased severity of symptoms). Item 4 Global Clinical Assessment of Akathisia rated on a 6-point scale range 0 (no symptoms) to 5 (increased severity of symptoms); higher score indicates increased severity. All rating are anchored. Only the Global Clinical Assessment of Akathisia was to be analyzed.

  • Change From Baseline in Movement Disorder Scales: Abnormal Involuntary Movement Scale (AIMS) Movement Cluster Score [ Time Frame: Baseline, Week 1 through Week 6 ] [ Designated as safety issue: Yes ]
    AIMS: clinician rated 12-item scale to rate 7 body areas and global judgments on the severity of abnormal movements, incapacitation and subject's awareness of abnormal movements. Items 1 to 10 scored 0 (none) to 4 (severe) (total possible score 0 to 40; higher score indicates greater severity); items 11 to 14 are No or Yes response to dental status and sleep movements. Only the sum of the first 7 items to be analyzed (AIMS Movement Cluster score). Total score 0 to 28; higher score indicates greater severity.

  • Number of Subjects Per Response on the School Placement Questionnaire: School Situation [ Time Frame: Baseline, Week 2, Week 6, ET ] [ Designated as safety issue: No ]
    School placement questionnaire: parent or legal guardian assessed questionnaire to determine whether the child is currently enrolled in school (or planned to be enrolled if on school holiday like summer break), whether attending regularly if enrolled, and how well the child is doing overall in school. Questions were modified from those used in the National Institute of Mental Health (NIMH) funded Treatment of Early Onset Schizophrenia Spectrum (TEOSS) study. Results determine whether subjects are currently attending school and qualitatively describe how well they are doing in school.

  • Number of Subjects Per Response on the School Placement Questionnaire: School Attendance [ Time Frame: Baseline, Week 2, Week 6, ET ] [ Designated as safety issue: No ]
    School placement questionnaire: parent or legal guardian assessed questionnaire to determine whether the child is currently enrolled in school (or planned to be enrolled if on school holiday like summer break), whether attending regularly if enrolled, and how well the child is doing overall in school. Questions were modified from those used in the National Institute of Mental Health (NIMH) funded Treatment of Early Onset Schizophrenia Spectrum (TEOSS) study. Results determine whether subjects are currently attending school and qualitatively describe how well they are doing in school.

  • Number of Subjects Per Response on the School Placement Questionnaire: Overall School Performance [ Time Frame: Baseline, Week 2, Week 6, ET ] [ Designated as safety issue: No ]
    School placement questionnaire: parent or legal guardian assessed questionnaire to determine whether the child is currently enrolled in school (or planned to be enrolled if on school holiday like summer break), whether attending regularly if enrolled, and how well the child is doing overall in school. Questions were modified from those used in the National Institute of Mental Health (NIMH) funded Treatment of Early Onset Schizophrenia Spectrum (TEOSS) study. Results determine whether subjects are currently attending school and qualitatively describe how well they are doing in school.


Enrollment: 284
Study Start Date: April 2006
Study Completion Date: March 2009
Primary Completion Date: March 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Placebo Comparator: 2.0 Drug: placebo
Placebo matching the oral ziprasidone capsules of 20 mg, 40 mg, 60 mg, and 80 mg strength or matching placebo. Subjects will be dosed daily for 6 weeks using a flexible dose design with a minimal dose range of 40mg twice a day (BID) to a maximum dose range of 80 mg BID. For subjects weighing <45 kg, the doses will range from 20 mg BID to 40 mg BID.
Active Comparator: 1.0 Drug: Ziprasidone oral capsules
Oral ziprasidone capsules of 20 mg, 40 mg, 60 mg, and 80 mg strength or matching placebo. Subjects will be dosed daily for 6 weeks using a flexible dose design with a minimal dose range of 40mg BID to a maximum dose range of 80 mg BID. For subjects weighing <45 kg, the doses will range from 20 mg BID to 40 mg BID.
Other Name: Geodon, Zeldox

Detailed Description:

Termination Reason: On March 24, 2009, Pfizer Inc. stopped late stage Geodon pediatric clinical trials in schizophrenia (A1281134 - placebo controlled; A1281135 - open label). As recommended by the DSMB, these studies were stopped due to lack of efficacy. No safety concerns were identified.

  Eligibility

Ages Eligible for Study:   13 Years to 17 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Diagnostic and Statistical Manual of Mental Disorders, 4th Edition (DSM-IV) criteria for schizophrenia: Current symptoms were to be present for at least 7 days before screening.
  • At the Screening and Baseline visits, subjects must have had a Brief Psychiatric Rating Scale - Anchored score ≥35 and a score of ≥4 on at least 1 of the following items: unusual thought content (i.e., delusions), hallucinations, suspiciousness, or conceptual disorganization.
  • Age 13 - 17 years

Exclusion Criteria:

  • Imminent risk of suicide or homicide, as judged by the site investigator
  • Any history of serious or unstable medical illness, including risk for QT prolongation
  Contacts and Locations
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, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00257192

  Show 93 Study Locations
Sponsors and Collaborators
Pfizer
Investigators
Study Director: Pfizer CT.gov Call Center Pfizer
  More Information

Additional Information:
No publications provided by Pfizer

Additional publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: Pfizer
ClinicalTrials.gov Identifier: NCT00257192     History of Changes
Other Study ID Numbers: A1281134
Study First Received: November 21, 2005
Results First Received: March 23, 2010
Last Updated: December 2, 2011
Health Authority: United States: Food and Drug Administration

Keywords provided by Pfizer:
Adolescent Subjects With Schizophrenia

Additional relevant MeSH terms:
Schizophrenia
Mental Disorders
Schizophrenia and Disorders with Psychotic Features
Ziprasidone
Antipsychotic Agents
Central Nervous System Agents
Central Nervous System Depressants
Dopamine Agents
Dopamine Antagonists
Molecular Mechanisms of Pharmacological Action
Neurotransmitter Agents
Pharmacologic Actions
Physiological Effects of Drugs
Psychotropic Drugs
Serotonin Agents
Serotonin Antagonists
Therapeutic Uses
Tranquilizing Agents

ClinicalTrials.gov processed this record on November 25, 2014