NCT00635531

Brief Summary

The purpose of this study is to evaluate the efficacy, safety, tolerability, and pharmacokinetics of alprazolam extended release (XR) for the treatment of adolescents with panic disorder

Trial Health

57
Monitor

Trial Health Score

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

Enrollment
16

participants targeted

Target at below P25 for phase_4

Timeline
Completed

Started Apr 2004

Shorter than P25 for phase_4

Geographic Reach
1 country

18 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

April 1, 2004

Completed
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2004

Completed
3.5 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 (2)

  • Endpoint change from baseline in the Panic Disorder Severity Scale for Adolescents (PDSS-A) total score

    Week 6

  • Endpoint change from baseline in the weekly frequency of 4-symptom panic attacks

    Week 6

Secondary Outcomes (11)

  • Weekly change in the PDSS-A total score

    Weeks 1, 2, 3, 4, 5, and 6

  • Weekly change and endpoint change from baseline in Clinical Global Impression (CGI)-Severity scale

    Weeks 1, 2, 3, 4, 5, and 6

  • Weekly change and endpoint change from baseline in CGI-lmprovement scale

    Weeks 1, 2, 3, 4, 5, and 6

  • Weekly change and and endpoint change from baseline in PDSS-A item scores

    Weeks 1, 2, 3, 4, 5, and 6

  • Endpoint change from baseline in the Hamilton anxiety rating scale total score

    Week 6

  • +6 more secondary outcomes

Study Arms (2)

Placebo group

PLACEBO COMPARATOR
Other: placebo

Alprazolam XR group

ACTIVE COMPARATOR
Drug: alprazolam XR

Interventions

placeboOTHER

Placebo dosing same as alprazolam, except a placebo equivalent was substituted for alprazolam

Placebo group

Oral treatment started at a daily dose of 1 mg tablets for the first 7 days; thereafter the daily dosage was titrated at a maximum rate of 1 mg every 7 days up to a maximum dosage of 6 mg for lack of response, and in the absence of dose-limiting adverse events; no further increases in daily dose were permitted after Day 36; dosage reductions were permitted if required for tolerability; subjects who were not eligible for entry into the 18-week continuation study, or who were eligible but elected not to participate, were tapered off study drug at a rate of 1 mg every 7 days for up to a 6-week taper period.

Also known as: Xanax XR
Alprazolam XR group

Eligibility Criteria

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

You may qualify if:

  • A primary DSM-IV-TR diagnosis of panic disorder with or without agoraphobia based on the Mini International Neuropsychiatric Interview for Children and Adolescents
  • At least an average of one 4-symptom panic attack per week over the last 4 weeks prior to screening
  • At least an average of one 4-symptom panic attack per week over the last 4 weeks prior to baseline
  • At least one 4-symptom panic attack in the 7 days prior to baseline

You may not qualify if:

  • Current (in the past 6 months) DSM-IV-TR diagnosis of obsessive compulsive disorder, major depressive disorder, dysthymic disorder, or alcohol and/or substance dependence
  • Primary DSM-IV-TR diagnosis of social anxiety disorder, post-traumatic stress disorder, simple phobia, separation anxiety disorder, generalized anxiety disorder, 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 Axis I eating disorder; mental retardation, Asperger's disorder, or any other serious developmental disorder
  • A CDRS-R score \>35

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (18)

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

Boise, Idaho, 83702, United States

Location

Pfizer Investigational Site

Terre Haute, Indiana, 47802, United States

Location

Pfizer Investigational Site

New Orleans, Louisiana, United States

Location

Pfizer Investigational Site

Baltimore, Maryland, 21208, 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

Lyndhurst, Ohio, 44124, United States

Location

Pfizer Investigational Site

Eugene, Oregon, 97401, 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

Lake Jackson, Texas, 77566, United States

Location

Pfizer Investigational Site

San Antonio, Texas, 78229, United States

Location

Pfizer Investigational Site

Wichita Falls, Texas, 76309, United States

Location

Pfizer Investigational Site

Bellevue, Washington, 98004, 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
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 5, 2008

First Posted

March 13, 2008

Study Start

April 1, 2004

Study Completion

September 1, 2004

Last Updated

January 28, 2021

Record last verified: 2021-01

Locations