NCT00135525

Brief Summary

This study is designed to evaluate the efficacy and safety in Generalized Anxiety Disorder patients

Trial Health

100
On Track

Trial Health Score

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

Timeline
Completed

Started May 2003

Typical duration for phase_2

Status
completed

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, 2003

Completed
2.3 years until next milestone

First Submitted

Initial submission to the registry

August 24, 2005

Completed
2 days until next milestone

First Posted

Study publicly available on registry

August 26, 2005

Completed
1 month until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2005

Completed
7 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2006

Completed
Last Updated

January 31, 2011

Status Verified

January 1, 2011

Enrollment Period

2.4 years

First QC Date

August 24, 2005

Last Update Submit

January 27, 2011

Conditions

Keywords

Generalized Anxiety Disorder

Outcome Measures

Primary Outcomes (1)

  • Mean change from baseline in the Hamilton Anxiety Scale (HAM-A) total score (at Week 8, last observation carried forward [LOCF])

    8 Weeks

Secondary Outcomes (1)

  • Mean change from baseline in the HAM-A score (at Weeks 1, 2, 4 and 6); in the Severity of Illness (CGI SI) score; in the SDS and MADRS total scoreProportion of responders based on the Clinical Global Impression Global Improvement (CGI GI) score

    8 Weeks

Study Arms (2)

Paroxetine

EXPERIMENTAL

Fixed Dose (20 mg/day): The fixed dose of 20 mg/day was selected, because it is the recommended dose for the treatment of GAD in the US and other countries. Flexible Dose (20 - 40 mg/day): Overseas, the maximum dose in the treatment of GAD is 50 mg/day. However, 40 mg/day was selected as the maximum dose for this flexible dose session, because overseas clinical studies have indicated that paroxetine is sufficiently effective at doses of 20 - 40 mg/day and this is the dose range approved for depression/depressive episodes in Japan.

Drug: Paroxetine

Placebo

PLACEBO COMPARATOR
Drug: Placebo

Interventions

Fixed Dose (20 mg/day): The fixed dose of 20 mg/day was selected, because it is the recommended dose for the treatment of GAD in the US and other countries. Flexible Dose (20 - 40 mg/day): Overseas, the maximum dose in the treatment of GAD is 50 mg/day. However, 40 mg/day was selected as the maximum dose for this flexible dose session, because overseas clinical studies have indicated that paroxetine is sufficiently effective at doses of 20 - 40 mg/day and this is the dose range approved for depression/depressive episodes in Japan.

Paroxetine

Placebo

Placebo

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Diagnosis of Generalized Anxiety Disorder (GAD) according to Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) criteria.
  • Must give a written informed consent. But if the patient is under 20, both the patient himself/herself and his/her proxy consenter must give written informed consent.

You may not qualify if:

  • Have the following conditions currently or diagnosed in the past 24 weeks:
  • Major Depressive Episode, Panic Disorder Without Agoraphobia, Panic Disorder With Agoraphobia, Social phobia/social anxiety disorder (SAD), Agoraphobia Without History of Panic Disorder, Posttraumatic Stress Disorder, Obsessive Compulsive Disorder, Anorexia Nervosa, Bulimia Nervosa, Dysthymic disorder
  • Current or history of schizophrenia, bipolar disorder or cyclothymic disorder.
  • Psychotherapy or cognitive behavioral therapy other than supportive psychotherapy.
  • Current or history of substance abuse (alcohol or drugs) or substance in past 24 weeks.
  • Taken St. John's Wort in past 4 weeks.
  • Had electroconvulsive therapy (ECT) in past 12 weeks.
  • Had psychotherapy or cognitive behavioral therapy other than supportive psychotherapy within 24 weeks.
  • Women who are pregnant or lactating, who may be pregnant, or who plan for pregnancy by 30 days after the completion of final dose.
  • Pose a suicidal threat or have attempted suicide in past 24 weeks.
  • History of convulsive disorder (epilepsy, etc.).
  • Significant unstable medical illness.
  • Current or history of glaucoma.
  • History or complication of cancer or malignant tumor.
  • History of hypersensitivity to paroxetine.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Anxiety DisordersGeneralized Anxiety Disorder

Interventions

Paroxetine

Condition Hierarchy (Ancestors)

Mental Disorders

Intervention Hierarchy (Ancestors)

PiperidinesHeterocyclic Compounds, 1-RingHeterocyclic Compounds

Study Officials

  • GSK Clinical Trials

    GlaxoSmithKline

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY

Study Record Dates

First Submitted

August 24, 2005

First Posted

August 26, 2005

Study Start

May 1, 2003

Primary Completion

October 1, 2005

Study Completion

May 1, 2006

Last Updated

January 31, 2011

Record last verified: 2011-01