NCT03251235

Brief Summary

Exposure-based cognitive-behaviour therapy (CBT) for anxiety disorders is an effective intervention, but the brain mechanisms driving recovery are largely unknown. In this experimental medicine study, it will be investigated to what degree CBT affects neural markers of anxiety at an early stage of treatment, to identify dynamic mechanistic changes which might be crucial in the process of recovery as opposed to those seen following full treatment completion. Patients with panic disorder will be recruited and randomly allocated to a group receiving 4 weekly sessions of cognitive-behaviour therapy versus a waiting group not receiving any interventions until after the experimental procedure.

Trial Health

100
On Track

Trial Health Score

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

Enrollment
28

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Jan 2011

Longer than P75 for not_applicable

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

January 1, 2011

Completed
2.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 4, 2013

Completed
2.4 years until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2016

Completed
1.5 years until next milestone

First Submitted

Initial submission to the registry

July 31, 2017

Completed
16 days until next milestone

First Posted

Study publicly available on registry

August 16, 2017

Completed
Last Updated

August 16, 2017

Status Verified

August 1, 2017

Enrollment Period

2.7 years

First QC Date

July 31, 2017

Last Update Submit

August 11, 2017

Conditions

Keywords

cognitive behaviour therapy

Outcome Measures

Primary Outcomes (1)

  • Emotional processing

    Activation levels in the fear circuit of the brain in response to emotional stimuli (fMRI)

    Treatment Group: post 4-week CBT treatment, waiting Group: post 4-week waiting

Secondary Outcomes (4)

  • Clinical symptom severity - Global anxiety and depression (self-report)

    Baseline, after 4 weeks treatment/ waiting

  • Clinical symptom severity - Fear of physical sensations (self-report)

    Baseline, after 4 weeks treatment/ waiting

  • Clinical symptom severity - Agoraphobic fear (self-report)

    Baseline, after 4 weeks treatment/ waiting

  • Clinical symptom severity - Clinical severity and improvement (clinician-report)

    Baseline, after 4 weeks treatment/ waiting

Study Arms (2)

Treatment Group

EXPERIMENTAL

Group receives four weekly sessions of CBT prior to experimental testing/ fMRI

Behavioral: Cognitive Behaviour Therapy

Waiting Group

NO INTERVENTION

Group receives four weekly sessions of CBT after experimental testing/ fMRI

Interventions

Also known as: CBT
Treatment Group

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Aged 18-70
  • Sufficiently fluent in English to understand the task and instructions
  • PDSS score of at least 6
  • At least two full panic attacks or limited symptoms attacks last 4 weeks

You may not qualify if:

  • CNS-acting medication (antidepressants within last 6 months, benzodiazepine last 3 days)
  • Current or past history of alcohol/ drug abuse
  • Serious medical conditions (e.g., epilepsy, heart or respiratory problems)
  • Done the task before
  • Waiting group: under current psychotherapeutic treatment
  • Pregnancy
  • Contraindications to MRI e.g. pacemaker, mechanical heart valve, hip replacement, metal implants
  • Severe claustrophobia that limits ability to participate in fMRI scanning

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (1)

  • Reinecke A, Thilo KV, Croft A, Harmer CJ. Early effects of exposure-based cognitive behaviour therapy on the neural correlates of anxiety. Transl Psychiatry. 2018 Oct 19;8(1):225. doi: 10.1038/s41398-018-0277-5.

MeSH Terms

Conditions

Panic Disorder

Interventions

Cognitive Behavioral Therapy

Condition Hierarchy (Ancestors)

Anxiety DisordersMental Disorders

Intervention Hierarchy (Ancestors)

Behavior TherapyPsychotherapyBehavioral Disciplines and Activities

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
CARE PROVIDER
Masking Details
The care provider is not aware of whether a patient is allocated to the treatment group or the waiting group.
Purpose
BASIC SCIENCE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 31, 2017

First Posted

August 16, 2017

Study Start

January 1, 2011

Primary Completion

September 4, 2013

Study Completion

February 1, 2016

Last Updated

August 16, 2017

Record last verified: 2017-08