Study Of Generalized Anxiety Disorder

NCT ID: NCT00135525

Last Updated: 2011-01-31

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Study Classification

INTERVENTIONAL

Study Start Date

2003-05-31

Study Completion Date

2006-05-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

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

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

This study was a multi-center, randomized, placebo-controlled, double-blinded (placebo run-in will be single-blinded), group comparison study.

Paroxetine 20mg/day (achieved via the starting dose of 10 mg/day for the first week) once daily, or placebo was orally administered once daily for 8 weeks (fixed dose was adopted in the Treatment phase) in patients with GAD.

For subjects who were classed as non-responders at Week 8, paroxetine at 30 to 40mg/day (once daily) or placebo (once daily) was orally administered with flexible titration regimen for 4 weeks (fixed dose was adopted in the Treatment phase). The subjects underwent a taper phase in case they received Paroxetine 40mg/day, paroxetine 30mg/day or placebo at treatment completion or study withdrawal. A follow-up examination was conducted after 1 to 5 weeks from the last dose of the investigational product.

The overall study duration requiring subject participation was 10 to 20 weeks.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Anxiety Disorder Anxiety Disorders

Keywords

Explore important study keywords that can help with search, categorization, and topic discovery.

Generalized Anxiety Disorder

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Paroxetine

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.

Group Type EXPERIMENTAL

Paroxetine

Intervention Type DRUG

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.

Placebo

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Placebo

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Paroxetine

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.

Intervention Type DRUG

Placebo

Placebo

Intervention Type DRUG

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* 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.

Exclusion Criteria

* 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.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

GlaxoSmithKline

INDUSTRY

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

GSK Clinical Disclosure

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

GSK Clinical Trials

Role: STUDY_DIRECTOR

GlaxoSmithKline

Countries

Review the countries where the study has at least one active or historical site.

Japan

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

BRL29060A/856

Identifier Type: -

Identifier Source: org_study_id