NCT03621371

Brief Summary

The feasibilty and preliminary comparative effectiveness of two methods of cognitive-behavioral therapy - metacognitive therapy and intolerance of uncertainty therapy - for primary care patients with generalized anxiety disorder is investigated in a pilot study using a randomized controlled design. Purpose of the study is to examine the feasibility of a full-scale randomized controlled trial. Research questions primarily concern recruitment, measurement, and adherence.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
64

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jun 2018

Geographic Reach
1 country

1 active site

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

June 15, 2018

Completed
13 days until next milestone

First Submitted

Initial submission to the registry

June 28, 2018

Completed
1 month until next milestone

First Posted

Study publicly available on registry

August 8, 2018

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 30, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 30, 2019

Completed
5.2 years until next milestone

Results Posted

Study results publicly available

January 30, 2025

Completed
Last Updated

January 30, 2025

Status Verified

January 1, 2025

Enrollment Period

1.5 years

First QC Date

June 28, 2018

Results QC Date

July 4, 2024

Last Update Submit

January 3, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Penn State Worry Questionnaire - Measure of Symptom Change

    Penn State Worry Questionnaire, a self-reported symptom measure of worry. Scale ranges: 16-80 scores on a scale; higher values represent a worse outcome.

    Change from baseline symptoms at 12 weeks

Study Arms (2)

Metacognitive therapy

EXPERIMENTAL
Behavioral: Metacognitive therapy

Intolerance of uncertainty therapy

EXPERIMENTAL
Behavioral: Intolerance of uncertainty therapy

Interventions

Metacognitive therapy is a form av cognitive-behavioral therapy which aims to change cognitions about worry in patients with generalized anxiety disorder.

Metacognitive therapy

Intolerance of uncertainty therapy is a form av cognitive-behavioral therapy which aims to reduce cognitive and behavioral avoidance of uncertain situations or cognitions which lead to worry in patients with generalized anxiety disorder.

Intolerance of uncertainty therapy

Eligibility Criteria

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

You may qualify if:

  • Primary diagnosis of generalized anxiety disorder
  • Age 18 years or above
  • Being able to understand and speak Swedish without interpreter support

You may not qualify if:

  • Psychosis, bipolar disorder, severe depressive symptoms, risk of suicid, substance use disorder, intellectual disability
  • Simultaneous psychological treatment
  • If pharmacological treatment, it needs to be stable prior to and during treatment

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Liljeholmen Primary Health Care Center

Stockholm, 11794, Sweden

Location

Related Publications (1)

  • Af Winklerfelt Hammarberg S, Toth-Pal E, Jansson-Frojmark M, Lundgren T, Westman J, Bohman B. Intolerance-of-uncertainty therapy versus metacognitive therapy for generalized anxiety disorder in primary health care: A randomized controlled pilot trial. PLoS One. 2023 Jun 14;18(6):e0287171. doi: 10.1371/journal.pone.0287171. eCollection 2023.

MeSH Terms

Conditions

Generalized Anxiety Disorder

Condition Hierarchy (Ancestors)

Anxiety DisordersMental Disorders

Results Point of Contact

Title
Dr Benjamin Bohman
Organization
Karolinska Institutet

Study Officials

  • Benjamin Bohman, PhD

    Karolinska Institutet

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Dr

Study Record Dates

First Submitted

June 28, 2018

First Posted

August 8, 2018

Study Start

June 15, 2018

Primary Completion

November 30, 2019

Study Completion

November 30, 2019

Last Updated

January 30, 2025

Results First Posted

January 30, 2025

Record last verified: 2025-01

Data Sharing

IPD Sharing
Will not share

Locations