- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03233542
The Association Between Physical Sensations and Thinking Styles
The Association Between Physical Sensations and Thinking Styles [Der Zusammenhang Zwischen körperlichem Empfinden Und Denkstilen]
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Marcella L Woud, PhD
- Phone Number: +492343221502
- Email: marcella.woud@rub.de
Study Contact Backup
- Name: Lisa Zahler, MSc
- Phone Number: +492343227939
- Email: lisa.zahler@rub.de
Study Locations
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North Rhine Westphalia
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Bochum, North Rhine Westphalia, Germany, 44787
- Psychotherapy Centre, Department of Clinical Psychology and Psychotherapy, Ruhr-Universität Bochum
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Aged 18 to 65
- Primary DSM-5 Anxiety Disorder (Panic Disorder for Panic Disorder groups, other anxiety disorder for anxious control group)
- Provided written informed consent
- Patient is in principle able to take part in the therapy
- Sufficient knowledge of German language
- Outpatient (no parallel hospital stay)
- Medical certificate: medical safety, so that hyperventilation is possible
Exclusion Criteria:
- Any reason that jeopardises the performance of the therapy
- Acute suicidality
- Primary affective disorder (e.g. Bipolar I, Major Depression)
- Psychotic disorder
- Parallel psychiatric or psychotherapeutic treatment (acute treatment)
- Current substance dependence (apart from Nicotine dependence)
- Serious medical disorders/ findings
- Other primary treatment diagnosis
- Intellectual impairment (estimated during screening)
- ADHD (estimated during screening)
- Personality disorders
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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Experimental: Panic Disorder: CBT
Participants with Panic Disorder randomized to this arm will receive a manualised Cognitive Behaviour Therapy (CBT) treatment for Panic Disorder, delivered in the outpatient psychotherapy centre of the Department of Clinical Psychology and Psychotherapy, Ruhr-Universität Bochum.
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Cognitive Behaviour Therapy (CBT) for diagnosed anxiety disorder (i.e.
CBT for Panic Disorder in the Panic Disorder group, or other diagnosed anxiety disorders in the Anxious Control group.
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No Intervention: Panic Disorder: Waiting list
After the pre-treatment testing session, participants with Panic Disorder randomized to this arm will wait a length of time equivalent to that for the pre/post-treatment duration for the Panic Disorder: Cognitive Behaviour Therapy arm (approx.
3 months), before returning to the post-treatment assessment.
After completing all the study procedures, participants in this arm receive also the manualised Cognitive Behaviour Therapy treatment for Panic Disorder, delivered in the outpatient psychotherapy centre of the Department of Clinical Psychology and Psychotherapy, Ruhr-Universität Bochum.
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Other: Anxious Control Group: CBT
All participants in the Anxious Control Group will receive a manualised Cognitive Behaviour Therapy (CBT) treatment for their diagnosed anxiety disorder, delivered in the outpatient psychotherapy centre of the Department of Clinical Psychology and Psychotherapy, Ruhr-Universität Bochum.
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Cognitive Behaviour Therapy (CBT) for diagnosed anxiety disorder (i.e.
CBT for Panic Disorder in the Panic Disorder group, or other diagnosed anxiety disorders in the Anxious Control group.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Priming Task
Time Frame: Change from pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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The Priming Paradigm measures panic related associations.
During this task, participants will be instructed to sort target words as words versus non-words (lexical decision task).
Before a target appears, however, a prime will be presented.
Participants will be instructed to look at the prime but to not react to it.
Following the design of Hermans et al. (2010), we will use the following prime-target combinations: panic-panic, panic-neutral, neutral-neutral, neutral-panic.
There will also be prime-target combinations with non-words as targets.
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Change from pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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Single Target Association Test
Time Frame: Change from pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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The Single Target Implicit Association Test (STIAT) measures the associative strength between a target concept and two attribute dimensions.
Participants are asked to sort stimuli into three categories by means of two response keys: one category represents a target concept, and two categories represent two poles of an attribute dimension.
The target category is paired with both attributes.
The present STIAT is designed as follows: targets: bodily changes, attributes: alarming vs. meaningless, and it takes over the structure as suggested by Wigboldus et al. (2006): (a) attribute discrimination, (b) target categorization practice, (c) first combined block, (d) reversed target categorization practice, and (e) reversed combined block.
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Change from pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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Scrambled Sentences Test
Time Frame: Change from pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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The Scrambled Sentence Task (SST, Wenzlaff & Bates, 1998) measures panic-related interpretation biases.
It consists of six-word strings participants are asked to unscramble to form a five-word sentence, leaving out one word.
The present SST can be completed such that the resulting five-word sentences produce either a panic-related or neutral interpretation.
During the SST, there is a cognitive load, i.e., participants have to memorize a 6 digit number.
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Change from pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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Interpretation Bias Questionnaire
Time Frame: Change from pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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The Interpretation Bias Questionnaire (IBQ) measures panic-related interpretation biases.
It consists of 18 brief scenarios used in earlier studies (Ebert, 1993, Foa & McNally, 1987).
Nine items describe panic-related situations, and the other nine describe negative, threat-related situations.
Following each scenario, three explanations are presented (for panic-related scenarios: one panic-related explanation and two panic-unrelated explanations, for negative, threat-related situations: one very negative, threat-related interpretation and two harmless explanations).
Participants have to indicate how likely each explanation for the corresponding scenario is, using rating scale from 0 (not likely) to 100 (very likely).
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Change from pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Anxiety Sensitivity Index (ASI)
Time Frame: Pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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The ASI (Ehlers, 1986; Reiss, Peterson, & McNally, 1986) is a 16-item self-report questionnaire measuring fear and concerns regarding anxiety-related symptoms such as "It scares me when my heart beats rapidly".
Items are rated on a five-point Likert scale (0 = "Very little" to 4 = "Very much").
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Pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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Depression Anxiety Stress Scale (DASS)
Time Frame: Pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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The DASS-21 (Lovibond & Lovibond, 1995; Nilges & Essau, 2015) questionnaire comprises three 7-item subscales assessing levels of depression, anxiety, and stress.
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Pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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Agoraphobic Cognitions Questionnaire (ACQ)
Time Frame: Pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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The ACQ (Chambless, Caputo, Bright, & Gallagher, 1984; Ehlers, Margraf, & Chambless, 1993) measures maladaptive thoughts about the potential for disastrous consequences arising from anxiety or panic.
It includes 14 items which can be scored as a total scale, or according to its two subscales, "loss of control" and "physical concerns".
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Pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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Body Sensations Questionnaire (BSQ)
Time Frame: Pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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The BSQ (Chambless, Caputo, Bright, & Gallagher, 1984; Ehlers, Margraf, & Chambless, 1993) includes 17 items that reflect specific bodily sensations (e.g., heart palpations, dizziness).
Participants are asked to indicate the degree to which they experience anxiety related to these sensations by means of a five-point Likert scale (1 = "Not at all" to 5 = "Extremely").
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Pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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Panic Disorder Severity Scale (PDSS)
Time Frame: Pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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The PDSS (Shear et al., 1997) is a 7-item scale and provides a composite severity score of frequency, distress, and impairment associated with panic attacks.
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Pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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Mobility Inventory (MI)
Time Frame: Pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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The MI (Chambless, Caputo, Jasin, Gracely, & Williams, 1985, Ehlers, Margraf, & Chambless, 1993) consists of 26 items and measures agoraphobic avoidance using a five-point Likert scale (1 = "Never avoid" to 5 = "Always avoid").
Each item has to be answered twice, once for when being accompanied and once for when being alone.
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Pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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Subjective ratings DSM panic symptoms
Time Frame: Pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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A symptom checklist will assess the presence of panic-relevant symptomatology in line with the DSM-5 criteria for panic disorder, e.g., occurrence and frequency of panic attacks, experienced distress during panic attack, fear of going crazy, dizziness etc. (for a similar procedure, see Wilhelm, Gerlach, & Roth, 2001).
It also assess participants' level of generally anxiety and whether or not participants experienced a panic attack.
This will be completed repeatedly within each testing session.
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Pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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Responses Hyperventilation Task
Time Frame: Pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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An adapted version of the procedure described by Kossowsky, Wilhelm, and Schneider (2013) and Wilhelm et al. (2001) will be used in the present study. During the hyperventilation, participants will breathe through their nose and their breathing will be monitored by a capnograph. There will be 3 phases. Phase 1: Participants will undergo a 'paced breathing' procedure. That is, they will be asked to keep a breathing speed of 18 cycles/minute (breaths per minute, bpm). Breathing speed will be paced by computerized audio instructions. At the end of phase 1, the end-tidal CO2 level should be 25mmHg (for recommendations for the end-tidal level, see Meuret et al., 2005). Phase 2: The goal of this phase is to maintain the 25mmHg CO2 level while participants keep on breathing with a 18 bpm paced breathing pattern. Phase 3: This is a 3 minute recovery phase. During this phase, participants are supposed to breath normally again. |
Pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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Heart rate variability
Time Frame: Pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)t
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An Electrocardiogram (ECG) will assess heart rate variability (HRV) during each testing session
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Pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)t
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Muscle activity
Time Frame: Pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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An Electromyography (EMG) will assess facial muscle activity during each testing session.
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Pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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Respiration
Time Frame: Pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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Following recommendations of Ritz and Dahme (2006), the HRV assessment will be combined with a respiratory assessment.
Respiration will be assessed by means of two plethysmography belts (thorax and abdomen) during each testing session.
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Pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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Galvanic skin response
Time Frame: Pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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Electrodermal activity (EDA), i.e., variations in the electrical characteristics of the skin, will be assessed during each testing session.
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Pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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Cortisol
Time Frame: Pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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Saliva samples will be collected at the start, during, and at the end of each testing session to analyze changes in cortisol levels, which serve as indices of arousal and stress.
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Pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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Alpha amylase
Time Frame: Pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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Saliva samples will be collected at the start, during, and at the end of each testing session to analyze changes in alpha amylase, which serve as indices of arousal and stress.
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Pre-treatment/waitinglist - post-treatment/waitinglist (post is approx. 3 months after the pre-treatment/waitinglist assessment)
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Marcella L Woud, PhD, Ruhr University of Bochum
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Estimated)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 145
- WO2018/2-1 (Other Grant/Funding Number: Deutsche Forschungsgemeinschaft (DFG))
- MA1116/13-1 (Other Grant/Funding Number: Deutsche Forschungsgemeinschaft (DFG))
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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