Completed

CBT Augmentation of Paroxetine for Social Anxiety

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What is being tested

Paroxetine

+ Cognitive behavioral therapy (CBT)

DrugBehavioral
Who is being recruted

Phobia, Social+1

+ Anxiety Disorders

+ Mental Disorders

From 18 to 65 Years
See all eligibility criteria
How is the trial designed

Treatment Study

Phase 3
Interventional
Study Start: December 2003
See protocol details

Summary

Principal SponsorTemple University
Last updated: January 14, 2026
Sourced from a government-validated database.Claim as a partner

Study start date: December 1, 2003

Actual date on which the first participant was enrolled.

Social anxiety disorder is a prevalent and disabling condition for which effective long-term treatments need to be identified. Paroxetine is effective in treating the acute symptoms of social anxiety, but many patients achieve less than optimal response. CBT has also been effective in treating social anxiety disorder; thus,it may also be effective in augmenting paroxetine response. This study will examine the effects of paroxetine treatment alone and in combination with CBT among patients who achieve less than optimal response after an open trial with paroxetine. Participants in this study will receive paroxetine for 12 weeks (Phase 1). After 12 weeks, participants who have completed this open trial but have achieved some but less than optimal response will move forward to Phase 2. To be eligible to move forward to Phase 2, patients must have achieved at least a 10% improvement in their open-trial Liebowitz Social Anxiety Scale Scores (LSAS) but still have an LSAS score of 30 or greater. Patients meeting these criteria will be randomly assigned to either add weekly sessions of CBT to their treatment or to continue taking paroxetine alone for another 16 weeks. Social anxiety symptoms, rates of response and remission, fear of negative evaluation, disability and quality of life will be assessed.

Official TitleCBT Augmentation of Paroxetine for Social Anxiety 
NCT00074802
Principal SponsorTemple University
Last updated: January 14, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.
Design Details

150 patients to be enrolled

Total number of participants that the clinical trial aims to recruit.

Treatment Study

These studies test new ways to treat a disease, condition, or health issue. The goal is to see if a new drug, therapy, or approach works better or has fewer side effects than existing options.



Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria

Any sex

Biological sex of participants that are eligible to enroll.

From 18 to 65 Years

Range of ages for which participants are eligible to join.

Healthy volunteers not allowed

If individuals who are healthy and do not have the condition being studied can participate.

Conditions

Pathology

Phobia, SocialAnxiety DisordersMental DisordersPhobic Disorders

Criteria

Inclusion Criteria: * Diagnostic and Statistical Manual of Mental Disorders, Fourth edition (DSM-IV) criteria for generalized social phobia * Willing and able to give written informed consent * English-speaking Exclusion Criteria: * Prior or current diagnosis of schizophrenia, schizoaffective disorder, organic mental disorder, bipolar disorder, or antisocial, schizotypal, and schizoid personality disorders * Suicidal thoughts * History of failed paroxetine treatment of at least 6 weeks' duration at adequate doses or a history of failed outcome of a previous adequate trial of CBT * Clinically significant and/or unstable medical disease * Pregnancy or breast-feeding. Women of childbearing potential will be required to sign a statement indicating their intention to avoid pregnancy during the study through the use of an effective method of contraception. * Alcohol or substance abuse or dependence within the past 3 months. Patients with a positive drug screen but no substance abuse disorder will be eligible for the study, provided they have not met criteria for abuse/dependence within the last 6 months and provide two clean urine samples 2 weeks apart. * Current or past history of seizure disorder (except febrile seizure in childhood) * Conditions that contraindicate the use of paroxetine * Inability to tolerate or unwillingness to accept a drug-free period of 4 weeks for monoamine oxidase inhibitors (MAOIs) or fluoxetine and 2 weeks for other selective serotonin reuptake inhibitors (SSRIs), neuroleptics, antidepressants, benzodiazepines, mood stabilizers, buspirone, beta-adrenergic blockers, or other psychotropic drugs prior to beginning the study * Currently receiving psychotherapy

Study Plan

Find out more about all the medication administered in this study, their detailed description and what they involve.
Treatment Groups
Study Objectives

2 intervention groups are designated in this study

This study does not include a placebo group 

Treatment Groups

Group I

Experimental
Participants who showed only partial response to paroxetine in Phase 1 will receive continued treatment with paroxetine for 16 additional weeks.

Group II

Experimental
Participants who showed only partial response to paroxetine in Phase 1 will receive continued treatment with paroxetine plus cognitive behavioral therapy (CBT) for 16 additional weeks.

Study Objectives

Primary Objectives

Secondary Objectives

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.

This study has 2 locations

Suspended

New York State Psychiatric Institute Anxiety Disorders Clinic

New York, United StatesSee the location
Suspended

Adult Anxiety Clinic of Temple University

Philadelphia, United States
Completed2 Study Centers