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Experimental Medication For the Treatment of Generalized Anxiety Disorder

A Double-Blind, Placebo Controlled Trial of an Experimental Medication For the Treatment of Generalized Anxiety Disorder

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00097708
Enrollment
511
Registered
2004-11-30
Start date
2004-11-30
Completion date
2005-12-31
Last updated
2014-10-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anxiety Disorder

Keywords

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

Brief summary

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

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.

Interventions

DRUGexperimental anti-anxiety drug

Sponsors

Jazz Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
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

* No other primary psychiatric diagnosis besides GAD.

Design outcomes

Primary

MeasureTime frameDescription
Change in HAM-A Total ScoreBaseline to week 8Hamilton 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.

Countries

United States

Participant flow

Participants by arm

ArmCount
OROS Alprazolam165
IR Alprazolam169
Placebo149
Total483

Baseline characteristics

CharacteristicIR AlprazolamPlaceboOROS AlprazolamTotal
Age, Continuous38.9 years
STANDARD_DEVIATION 12.02
38.5 years
STANDARD_DEVIATION 11.13
39.1 years
STANDARD_DEVIATION 12
38.8 years
STANDARD_DEVIATION 11.72
Age, Customized
40 - < 65 years
78 participants58 participants76 participants212 participants
Age, Customized
< 40 years
90 participants91 participants87 participants268 participants
Age, Customized
>=65 years
1 participants0 participants2 participants3 participants
Region of Enrollment
United States
169 participants149 participants165 participants483 participants
Sex: Female, Male
Female
113 Participants103 Participants95 Participants311 Participants
Sex: Female, Male
Male
56 Participants46 Participants70 Participants172 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
140 / 171141 / 176118 / 160
serious
Total, serious adverse events
6 / 1711 / 1760 / 160

Outcome results

Primary

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

ArmMeasureValue (LEAST_SQUARES_MEAN)
OROS AlprazolamChange in HAM-A Total Score-12.9 Units on a Scale
IR AlprazolamChange in HAM-A Total Score-15.7 Units on a Scale
PlaceboChange in HAM-A Total Score-12.5 Units on a Scale
p-value: 0.65495% CI: [-2.2, 1.4]ANCOVA
p-value: 0.000595% CI: [-5, -1.4]ANCOVA
p-value: 0.001595% CI: [1.1, 4.5]ANCOVA

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026