The Role of Expectations in the Pharmacological Treatment of Depression - An Experimental Investigation
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Hessen
-
Gießen, Hessen, Germany, 35390
- Justus Liebig University Giessen
-
Marburg, Hessen, Germany, 35032
- Philipps University Marburg
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- major depression (mild to moderate)
- fluent in German language
Exclusion Criteria:
- bipolar disorder, psychotic disorder, substance dependence
- cardiovascular disease, severe kidney or liver disease, epilepsy
- change of psychotropic medication intake within the last four weeks
- allergic to capsaicin
- allergic to sesame oil
- students in medicine, pharmacy, or psychology in their third year or older
- completed studies in medicine, pharmacy or psychology
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Triple
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Other: No-treatment control group
Participants do not receive the nasal spray.
Participants watch a film sequence that is supposed to induce sadness.
|
All groups watch the film sequence that is supposed to induce sadness.
|
|
Experimental: Positive placebo group
Participants receive a placebo nasal spray.
However, they are told that it protects from experiencing negative emotions.
Participants watch a film sequence that is supposed to induce sadness.
|
The placebo nasal spray consists of sesame oil and does not contain any active drug.
All groups watch the film sequence that is supposed to induce sadness.
|
|
Placebo Comparator: Placebo control group
Participants receive a placebo nasal spray and are told that it is a placebo.
Participants watch a film sequence that is supposed to induce sadness.
|
The placebo nasal spray consists of sesame oil and does not contain any active drug.
All groups watch the film sequence that is supposed to induce sadness.
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Sadness
Time Frame: Directly after watching the film sequence, no follow-up assessments
|
Items of PANAS-X
|
Directly after watching the film sequence, no follow-up assessments
|
Collaborators and Investigators
Sponsor
Sponsor
Investigators
Investigators
- Principal Investigator: Winfried Rief, Professor, Philipps University Marburg Medical Center
Study record dates
Study Major Dates
Study Start (Actual)
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Actual)
First Posted
Study Record Updates
Last Update Posted (Actual)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- 2017-12k
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
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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