Psychodynamic Internet Treatment Versus Cognitive Behavioral Therapy (CBT) for Generalized Anxiety Disorder

Psychodynamic Versus Cognitive Behavioral Internet-Delivered Guided Self-help for Generalized Anxiety Disorder: A Randomized Controlled Trial

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT01312116

Enrollment

Registered

2011-03-10

Start date

2009-01-31

Completion date

2010-12-31

Last updated

2011-03-10

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

Conditions

Generalized Anxiety Disorder

Keywords

Internet treatment, GAD, guided self-help

Brief summary

The objective is to test if Internet-delivered cognitive behavior therapy (iCBT) or Internet-delivered psychodynamic therapy (iPDT) performs better for a population with generalized anxiety disorder (GAD), compared to a wait-list control condition.

Detailed description

This was a non-inferiority trial within the context of a parallel group study with unrestricted randomisation in 1:1:1 ratio conducted in Sweden. Outcome assessors were blind to treatment status.

Interventions

BEHAVIORALiCBT

Internet-delivered cognitive behavior therapy, 8 weeks

BEHAVIORALiPDT

Internet-delivered psychodynamic therapy, 8 weeks

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

* fulfill the diagnostic criteria for GAD according to DSM-IV * have access to the Internet * have good knowledge of the Swedish language

Exclusion criteria

* recent (during last 6 weeks) change in psychiatric medication * presently in any other psychological treatment * severe depression * suicidal ideation

Design outcomes

Primary

Measure	Time frame	Description
Penn State Worry Questionnaire (PSWQ)	Two weeks pre treatment to two weeks post treatment.	Change from baseline in anxiety symptoms to two weeks post treatment.

Secondary

Measure	Time frame	Description
Quality of Life Inventory (QOLI)	Two weeks pre treatment to two weeks post treatment	Change from baseline in quality of life status to two weeks post treatment.
Beck Depression Inventory (BDI)	Two weeks pre treatment to two weeks post treatment	Change from baseline in depressive symptoms to two weeks post treatment.
Beck Anxiety Inventory (BAI)	Two weeks pre treatment to two weeks post treatment	Change from baseline in anxiety symptoms to two weeks post treatment.
Montgomery Åsberg Depression Rating Scale-Self Rated (MADRS-S)	Two weeks pre treatment to two weeks post treatment	Change from baseline in depressive symptoms to two weeks post treatment.
State Trait Anxiety Inventory (STAI)	Two weeks pre treatment to two weeks post treatment	Change from baseline in anxiety symptoms to two weeks post treatment.
Generalized Anxiety Disorder Questionnaire IV (GAD-Q IV)	Two weeks pre treatment to two weeks post treatment	Change from baseline in anxiety symptoms to two weeks post treatment.
Trimbos and iMTA questionnaire on Costs associated with Psychiatric illness (TIC-P)	Two weeks pre treatment to two weeks post treatment	Change from baseline in societal cost of illness to two weeks post treatment.

Countries

Sweden

Outcome results

None listed

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