NCT00634790

Brief Summary

The purpose of this study is to assess the long-term safety and tolerability of alprazolam extended release (XR) in adolescents with panic disorder, with or without agoraphobia, or in anxiety disorder with panic attacks. Efficacy, population pharmacokinetics of alprazolam XR and the relationship between alprazolam XR plasma concentrations and efficacy outcomes will also be evaluated.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
49

participants targeted

Target at P25-P50 for phase_4

Timeline
Completed

Started May 2004

Shorter than P25 for phase_4

Geographic Reach
1 country

47 active sites

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

May 1, 2004

Completed
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2004

Completed
3.4 years until next milestone

First Submitted

Initial submission to the registry

March 5, 2008

Completed
8 days until next milestone

First Posted

Study publicly available on registry

March 13, 2008

Completed
Last Updated

January 28, 2021

Status Verified

January 1, 2021

First QC Date

March 5, 2008

Last Update Submit

January 26, 2021

Conditions

Outcome Measures

Primary Outcomes (3)

  • Endpoint change from baseline to Week 24 in Digit Symbol-Coding Test, immediate recall, and delayed recall

    24 weeks

  • Baseline-to-peak Physician's Withdrawal Checklist change score during 6-week taper off alprazolam

    6 week taper

  • The incidence of treatment-emergent adverse event during treatment with alprazolam XR

    24 weeks with taper

Secondary Outcomes (5)

  • Descriptive estimates of the persistence of safety events and adverse events at study endpoint

    24 weeks with taper

  • Endpoint change from baseline to Week 24 in the Panic Disorder Severity Scale-Adolescent version total and item scores

    24 weeks

  • Endpoint (Week 24) Clinical Global Impression (CGI)-Improvement score

    24 weeks

  • Endpoint change from baseline to Week 24 in CGI-Severity score

    24 weeks

  • Endpoint (Week 24) Pediatric Quality of Life, Enjoyment, and Satisfaction Questionnaire improvement score

    24 weeks

Study Arms (1)

alprazolam group

ACTIVE COMPARATOR
Drug: alprazolam XR

Interventions

Alprazolam XR oral tablet 1 mg daily for 7 days; thereafter the daily dose will be titrated at a maximum rate of 1 mg every 7 days up to a maximum dose of 6 mg; dose adjustments up or down may be made, at a rate not to exceed 1 mg every 7 days; alprazolam XR will be administered for a total of 6 months followed by a gradual taper at a rate of 1 mg every 7 days.

Also known as: Xanax XR
alprazolam group

Eligibility Criteria

Age13 Years - 17 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • Subjects must meet one of the following 6 diagnoses: a. A current diagnosis of panic disorder with or without agoraphobia; b. Generalized anxiety disorder with a history of at least one panic attack in the course of their illness; c. Social anxiety disorder (social phobia) with a history of at least one panic attack in the course of their illness; d. Separation anxiety with a history of at least one panic attack in the course of their illness; e. Posttraumatic stress disorder with a history of at least one panic attack in the course of their illness; f. Anxiety not otherwise specified with a history of at least one panic attack in the course of their illness.
  • Educational level, intelligence, or other mental condition in the subject and/or his/her parent(s) are judged by the investigator to be sufficient to permit adequate informed consent/assent to be obtained, and for study procedures to be complied with.

You may not qualify if:

  • Current (in the past 6 months) diagnosis of obsessive compulsive disorder, major depressive disorder, dysthymic disorder, or alcohol and/or substance dependence.
  • Current (in the past 3 months) diagnosis of alcohol and/or substance abuse.
  • Primary diagnosis of conduct disorder, oppositional defiant disorder, or Attention Deficit Hyperactivity Disorder.
  • Any current or past history of schizophrenia or psychosis; bipolar disorder or cyclothymia; dementia, delirium or other organic brain disease; an eating disorder; mental retardation, Asperger's disorder, or any other serious developmental disorder.
  • A Childhood Depression Rating Scale, Revised score \>35.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (47)

Pfizer Investigational Site

Little Rock, Alaska, 72223, United States

Location

Pfizer Investigational Site

Phoenix, Arizona, 85016, United States

Location

Pfizer Investigational Site

Scottsdale, Arizona, 85251, United States

Location

Pfizer Investigational Site

Burbank, California, 91506, United States

Location

Pfizer Investigational Site

El Centro, California, 92243, United States

Location

Pfizer Investigational Site

La Mesa, California, 91942, United States

Location

Pfizer Investigational Site

Los Angeles, California, 90010, United States

Location

Pfizer Investigational Site

Oceanside, California, 92056, United States

Location

Pfizer Investigational Site

San Diego, California, 92111, United States

Location

Pfizer Investigational Site

San Marcos, California, 92078, United States

Location

Pfizer Investigational Site

Gainesville, Florida, 32610, United States

Location

Pfizer Investigational Site

Hialeah, Florida, 33013, United States

Location

Pfizer Investigational Site

Jacksonville, Florida, 32216, United States

Location

Pfizer Investigational Site

North Miami, Florida, 33161, United States

Location

Pfizer Investigational Site

St. Petersburg, Florida, 33710, United States

Location

Pfizer Investigational Site

West Palm Beach, Florida, 33409, United States

Location

Pfizer Investigational Site

Decatur, Georgia, 30030, United States

Location

Pfizer Investigational Site

Boise, Idaho, 83702, United States

Location

Pfizer Investigational Site

Schaumburg, Illinois, 60194, United States

Location

Pfizer Investigational Site

Terre Haute, Indiana, 47802, United States

Location

Pfizer Investigational Site

Overland Park, Kansas, 66214, United States

Location

Pfizer Investigational Site

Lexington, Kentucky, 40509, United States

Location

Pfizer Investigational Site

Owensboro, Kentucky, 42301, United States

Location

Pfizer Investigational Site

New Orleans, Louisiana, 70112, United States

Location

Pfizer Investigational Site

New Orleans, Louisiana, 70114, United States

Location

Pfizer Investigational Site

Baltimore, Maryland, 21208, United States

Location

Pfizer Investigational Site

Clinton Township, Michigan, 48038, United States

Location

Pfizer Investigational Site

Saint Paul, Minnesota, 55101, United States

Location

Pfizer Investigational Site

Omaha, Nebraska, 68131, United States

Location

Pfizer Investigational Site

Las Vegas, Nevada, 89102, United States

Location

Pfizer Investigational Site

Clementon, New Jersey, 08021, United States

Location

Pfizer Investigational Site

Kenilworth, New Jersey, 07033, United States

Location

Pfizer Investigational Site

Morristown, New Jersey, 07962, United States

Location

Pfizer Investigational Site

Bismarck, North Dakota, 59501, United States

Location

Pfizer Investigational Site

Cleveland, Ohio, 44106-5080, United States

Location

Pfizer Investigational Site

Lyndhurst, Ohio, 44124, United States

Location

Pfizer Investigational Site

Eugene, Oregon, 97401, United States

Location

Pfizer Investigational Site

Bala-Cynwyd, Pennsylvania, 19004, United States

Location

Pfizer Investigational Site

Hershey, Pennsylvania, 17033-0850, United States

Location

Pfizer Investigational Site

Media, Pennsylvania, 19063, United States

Location

Pfizer Investigational Site

Columbia, South Carolina, 29201, United States

Location

Pfizer Investigational Site

Selmer, Tennessee, 38375-1645, United States

Location

Pfizer Investigational Site

San Antonio, Texas, 78229, United States

Location

Pfizer Investigational Site

Salt Lake City, Utah, 84117, United States

Location

Pfizer Investigational Site

Midlothian, Virginia, 23112, United States

Location

Pfizer Investigational Site

Richmond, Virginia, 23294, United States

Location

Pfizer Investigational Site

Middleton, Wisconsin, 53562, United States

Location

Related Links

MeSH Terms

Conditions

Panic Disorder

Interventions

Alprazolam

Condition Hierarchy (Ancestors)

Anxiety DisordersMental Disorders

Intervention Hierarchy (Ancestors)

BenzodiazepinesBenzazepinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic Compounds

Study Officials

  • Pfizer CT.gov Call Center

    Pfizer

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 5, 2008

First Posted

March 13, 2008

Study Start

May 1, 2004

Study Completion

October 1, 2004

Last Updated

January 28, 2021

Record last verified: 2021-01

Locations