CClinicalTrials.gg
CompletedNCT00097708Updated Oct 3, 2014Results posted

Experimental Medication For the Treatment of Generalized Anxiety Disorder

A Phase 3 interventional study of experimental anti-anxiety drug in Anxiety Disorder, sponsored by Jazz Pharmaceuticals. Completed at 50 sites in United States. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2014-10-03.

Sponsored by Jazz Pharmaceuticals · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
511
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The purpose of this study is to determine whether an experimental anti-anxiety medication is effective in the treatment of Generalized Anxiety Disorder.

Read the detailed description

Protocol 04-001-01

The primary objective of the study is to assess, under controlled conditions, the safety and efficacy of an experimental anti-anxiety medication relative to placebo in subjects with generalized anxiety disorder (GAD).

The secondary objective of the study is to study algorithms for discontinuation of an experimental anti-anxiety medication.

Recruiting: Participants are currently being recruited and enrolled.

02

Conditions studied

  • Anxiety Disorder

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Keywords

  • Double Blind, Placebo controlled, Safety and Efficacy
  • Generalized Anxiety Disorder
03

In context

Anxiety Disorders

4,868 studies on the registry are indexed under Anxiety Disorders; 1,390 are open to participants now.

This study's enrollment of 511 is above the median of 80 across 4,174 interventional studies indexed under Anxiety Disorders.

Browse Anxiety Disorders studies →

Lead sponsor

Jazz Pharmaceuticals is the lead sponsor of 167 studies on the registry; 20 are open to participants now.

Of its 39 completed or terminated interventional studies of FDA-regulated products, 28 (72%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Subjects 18 to 65 years of age will be eligible to participate if they satisfy the DSM-IV-TR criteria for the diagnosis of GAD.

Exclusion criteria

Exclusion Criteria:

  • No other primary psychiatric diagnosis besides GAD.
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double
Enrollment
511 participants (actual)

Interventions

  • Drugexperimental anti-anxiety drug
06

What researchers measure

Primary outcomes

  1. Change in HAM-A Total Score

    Hamilton Anxiety Rating Scale (HAM-A). Each of 14 symptoms categories is rated from 0=not present to 4=very severe. Numbers for all categories are summed to produce the total score. Total score ranges from 0=anxiety symptoms not present to 56=very severe anxiety symptoms across all 14 categories.

    Time frame: Baseline to week 8

07

Results

Posted Oct 3, 2014

Participant flow

Participant flow — Overall Study
MilestoneOROS AlprazolamIR AlprazolamPlacebo
Started173176162
Intent-to-treat (itt)165169149
Treated171176160
Completed10912097
Not completed645665

Outcome measures

PrimaryChange in HAM-A Total Score

Hamilton Anxiety Rating Scale (HAM-A). Each of 14 symptoms categories is rated from 0=not present to 4=very severe. Numbers for all categories are summed to produce the total score. Total score ranges from 0=anxiety symptoms not present to 56=very severe anxiety symptoms across all 14 categories.

Time frame:
Baseline to week 8
Reported as:
Least squares mean · Units on a Scale
Change in HAM-A Total Score
Units on a ScaleOROS AlprazolamIR AlprazolamPlacebo
Change in HAM-A Total Score-12.9 (-33 to 9)-15.7 (-36 to 5)-12.5 (-35 to 4)
Statistical analysis
  • OROS Alprazolam vs Placebo · ANCOVA · p = 0.6540 · Mean difference (net): -0.4 · 95% CI -2.2 to 1.4
  • IR Alprazolam vs Placebo · ANCOVA · p = 0.0005 · Mean difference (net): -3.2 · 95% CI -5.0 to -1.4
  • OROS Alprazolam vs IR Alprazolam · ANCOVA · p = 0.0015 · Mean difference (net): 2.8 · 95% CI 1.1 to 4.5

Adverse events

Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
OROS Alprazolam—6/171 (3.5%)140/171 (81.9%)
IR Alprazolam—1/176 (0.6%)141/176 (80.1%)
Placebo—0/160 (0%)118/160 (73.8%)
Most frequent serious events
Most frequent serious events
EventOROS AlprazolamIR AlprazolamPlacebo
Abdominal Pain UpperGastrointestinal disorders1/1710/1760/160
Duodenal Ulcer PerforationGastrointestinal disorders1/1710/1760/160
Alcohol PoisoningInjury, poisoning and procedural complications1/1710/1760/160
Post Procedural HaemorrhageInjury, poisoning and procedural complications1/1710/1760/160
Intentional Self-InjuryPsychiatric disorders1/1710/1760/160
Suicide AttemptPsychiatric disorders1/1710/1760/160
IleitisGastrointestinal disorders0/1711/1760/160
Most frequent other events
Most frequent other events
EventOROS AlprazolamIR AlprazolamPlacebo
SomnolenceNervous system disorders48/17147/17611/160
HeadacheNervous system disorders23/17127/17628/160
DizzinessNervous system disorders19/17129/17610/160
FatigueGeneral disorders25/17123/17614/160
NauseaGastrointestinal disorders13/17117/17619/160
Upper Respiratory Tract InfectionInfections and infestations17/17120/1769/160
SedationNervous system disorders13/17118/1766/160
DiarrhoeaGastrointestinal disorders9/17115/17612/160
Dry MouthGastrointestinal disorders6/1719/17611/160
InsomniaPsychiatric disorders11/1718/1769/160

Baseline characteristics

Age, Continuous
Age, Continuous(years)OROS AlprazolamIR AlprazolamPlaceboTotal
Mean39.1 ± 12.0038.9 ± 12.0238.5 ± 11.1338.8 ± 11.72
Age, Customized
Age, Customized(participants)OROS AlprazolamIR AlprazolamPlaceboTotal
< 40 years879091268
40 - < 65 years767858212
>=65 years2103
Sex: Female, Male
Sex: Female, Male(Participants)OROS AlprazolamIR AlprazolamPlaceboTotal
Female95113103311
Male705646172
Region of Enrollment
Region of Enrollment(participants)OROS AlprazolamIR AlprazolamPlaceboTotal
United States165169149483
08

Study locations

50 sites
  • Birmingham Research Group, Inc.
    Birmingham, Alabama 35216, United States
  • Crest Clinical Trials, Inc.
    Anaheim, California 92804, United States
  • Southwesten Research, Inc.
    Beverly Hills, California 90210, United States
  • Southwestern Research Institute
    Burbank, California 91506, United States
  • University of California - San Diego - Dept of Psychiatry
    San Diego, California 92103, United States
  • Clinical Innovations
    Santa Ana, California 92705, United States
  • Stanford University Medical Center
    Stanford, California 94305, United States
  • Diablo Clinical Research, Inc.
    Walnut Creek, California 94598, United States
  • Alpine Clinical Research Center
    Boulder, Colorado 80304, United States
  • New Britain General Hospital
    New Britain, Connecticut 06050, United States
  • Florida Clinical Research Center
    Bradenton, Florida 34208, United States
  • ACT Clinical Research
    DeLand, Florida 32720, United States
  • University Clinical Research DeLand, Inc.
    DeLand, Florida 32720, United States
  • Sarkis Clinical Trials
    Gainsville, Florida 32607, United States
  • Clinical Neuroscience Solutions, Inc.
    Jacksonville, Florida 32216, United States
  • Clinical Neuroscience Solutions, Inc.
    Orlando, Florida 32806, United States
  • Meridien Research
    St. Petersburg, Florida 33709, United States
  • Institute of Research in Psychiatry
    Tampa, Florida 33613, United States
  • Janus Center for Psychiatric Research
    West Palm Beach, Florida 33407, United States
  • Atlanta Institute of Medicine and Research
    Marietta, Georgia 30060, United States
  • Radiant Research
    Boise, Idaho 83704, United States
  • American Medical Research, Inc.
    Oak Brook, Illinois 60523, United States
  • Peak Medical Research, LLC
    Owensboro, Kentucky 42303, United States
  • New Orlean Medical Institute
    Metairie, Louisiana 70001, United States
  • Brentwood Research Institute
    Shreveport, Louisiana 71101, United States
  • Pharmasite Research, Inc.
    Baltimore, Maryland 21208, United States
  • McLean Hospital
    Belmont, Massachusetts 02478, United States
  • Pivotal Research Centers - Detroit
    Royal Oak, Michigan 48073, United States
  • MedClin Research
    St. Louis, Missouri 63118, United States
  • CNS Research Institute (CRI)
    Clementon, New Jersey 08021, United States
  • ClinSearch, Inc.
    Kenilworth, New Jersey 07033, United States
  • Princeton Medical Institute
    Princeton, New Jersey 08540, United States
  • Social Psychiatry Research Institute
    Brooklyn, New York 11235, United States
  • Midwest Clinical Research Center
    Dayton, Ohio 45408, United States
  • Neurology and Neuroscience Center of Ohio
    Toledo, Ohio 43623, United States
  • IPS Research Company
    Oklahoma City, Oklahoma 73103, United States
  • Laureate Psychiatric Clinic and Hospital
    Tulsa, Oklahoma 74136, United States
  • Oregon Center for Clinical Investigations, Inc.
    Eugene, Oregon 97401, United States
  • Suburban Research Associates
    Media, Pennsylvania 19063, United States
  • CNS Research Institute
    Philadelphia, Pennsylvania 19149, United States
  • Southeast Health Consultants, LLC
    Charleston, South Carolina 29407, United States
  • CNS, Inc.
    Memphis, Tennessee 38119, United States
  • Clinical Research Associates, Inc.
    Nashville, Tennessee 37203, United States
  • FutureSearch Trials
    Austin, Texas 78756, United States
  • Research Across America
    Dallas, Texas 75234, United States
  • R/D Clinical Research, Inc.
    Lake Jackson, Texas 77566, United States
  • Lifetree Clinical Research
    Salt Lake City, Utah 84106, United States
  • Comprehensive Neuroscience of Northern Virginia
    Falls Church, Virginia 22041, United States
  • Dominion Clinical Research, Inc.
    Midlothian,, Virginia 23112, United States
  • Northwest Clinical Research Center
    Bellevue, Washington 98004, United States
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 3, 2014, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00097708
Lead sponsor
Jazz Pharmaceuticals
First posted
Nov 30, 2004
Start date
Nov 2004
Completion
Dec 2005
Results posted
Oct 3, 2014
Last update
Oct 3, 2014

Study contacts

Murray Stein, MD
study chair · University of California, San Diego
View the source record on ClinicalTrials.gov ↗

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