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Past Pain Experience and Perception of Experimental Pain

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01575912
Recruitment Status : Completed
First Posted : April 12, 2012
Results First Posted : May 3, 2017
Last Update Posted : June 12, 2017
Information provided by (Responsible Party):
Dominique Malauzat, Centre Hospitalier Esquirol

Brief Summary:

Differences in pain perception between subjects with and without psychiatric illness may be influenced by the individual experience, and not primarily by the pathology, although the pathological frame may amplify it.The aim of this study is to establish if the characteristics of experimental pain feeling are influenced by the past pain experience, anxiety and emotion, independently from the diagnosis. The pain experience will be evaluated by an inventory of the potentially painful situations that one can come across through the life, to determine the following points : Number of painful events in the past, number of painful points during the last 6 months, number of painful events lasting more than 6 months, sum of pain intensities (graduated with Visual Analogic Scale VAS from 0 to 10), sum of gravity (evaluated from 0 to 5), the category of pain experience qualification (mostly affective, mostly sensorial, or both).

Schizophrenic, depressed and control participants will be recruited, and their pain experience throughout life will be put it in relation to experimental pain tests results (pressure application, ischemia induction), anxiety and emotion (Hospital Anxiety and Depression scale HAD), catastrophizing (Pain Catastrophizing Scale PCS), Heart Rate (HR) variation, Blood Pressure (BP) variation.

Condition or disease Intervention/treatment
Schizophrenia Major Depression Other: experimental pain tests

Detailed Description:

The perception of moderated experimental pain (about 3 out of ten with visual analogue scale VAS) in subjects with schizophrenia (Girard et coll., 2011), major depression (ED) (bipolar or isolated/recurrent episode) (to be published) in comparison with controls without psychiatric pathologies show that exploration of pain in situation like medical examination to identify painful points should be done in the same conditions for persons with psychiatric troubles and persons without mental disease. But the risk is that the expression of pain, either in experimental conditions nor in the daily life, is not in relation with the feeling or perception of pain. Numerous factors may interfere in the pain message modulation, like the past pain experience, stress and anxiety, which are not or partially explored in experimental studies. The individual experience of pain is constructed throughout the whole life, from several influences (biological, psychological, and sociocultural). The symptoms interfaces of the different psychiatric troubles seem to be widely involved in the pain process, and its progressive construction. This study aims to better understand the relationships between all those variables.

Procedures applied :

Anterior pain experience evaluation (questionnaire); Pain tests : 160 kPa pressure application to determine corresponding pain with VAS), and ischemia induction to determine the time necessary to obtain a pain equivalent to 3 out of 10; anxiety and emotional evaluation (Hospital Anxiety and Depression scale), catastrophizing evaluation (Pain Catastrophizing Scale), HR variation and BP variation (vegetative measures linked to anxiety) collection of diagnosis, and therapeutic treatment

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Study Type : Observational
Actual Enrollment : 92 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: Past Pain Experience and Perception of Experimental Pain
Study Start Date : March 2012
Actual Primary Completion Date : January 2014
Actual Study Completion Date : January 2014

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Schizophrenia

Group/Cohort Intervention/treatment
schizophrenia SC
subjects with a diagnosis of schizophrenia (SC) according to the DSM-IV-TR, submitted to experimental pain tests
Other: experimental pain tests
major depression MD
subjects with a diagnosis of major depression (MD) according to the DSM-IV-TR, submitted to experimental pain tests
Other: experimental pain tests
controls C
subjects without any diagnosis of psychiatric disorder (C) submitted to experimental pain tests
Other: experimental pain tests

Primary Outcome Measures :
  1. Visual Analog Scale Evaluation for the Pre-fixed Pressure Test [ Time Frame: one month ]

    pain tests will be realized during the first week of hospitalization for the persons hospitalized for major depression, and during the period of hospitalization (after stabilization) for the persons presenting schizophrenia.

    The controls are tested within one month of the study information. total range : 0 - 10. The intensity of pain increases with the value of VAS. 10 corresponds to an unbearable pain.

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 60 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population

Subjects hospitalized in the Esquirol Hospital center with schizophrenia or major depression according to the DSM-IV-TR criteria.

Subjects without without known psychiatric history. Recruited persons will be matched according to age classes.


Inclusion Criteria:

  • subjects with psychiatric trouble : diagnosis of schizophrenia or major depression according to the DSM-IV-TR criteria.
  • control subjects : without known psychiatric history.
  • age between 18 and 60.

Exclusion Criteria:

  • absence of consent, hospitalization under constraint, absence of health insurance.
  • inability to answer the questionnaires
  • pregnancy
  • antalgic or analgesic treatment
  • allergy to latex
  • non stabilized high blood pressure, bad blood coagulation,
  • peripheral neuropathy, nerve lesion, dermatosis at the superior extremities, muscular lesion or pathology at the upper member level
  • non treated alcohol dependence
  • illegal substance consumption in the past 48 hours
  • participation to an other biomedical study during the 2 weeks before inclusion, and until the pain tests, if this study can interfere with the realization of the objectives

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01575912

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Centre Hospitalier Esquirol
Limoges, France, 87025
Sponsors and Collaborators
Centre Hospitalier Esquirol
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Principal Investigator: Dominique Malauzat, MD Centre Hospitalier Esquirol
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Responsible Party: Dominique Malauzat, MD, Centre Hospitalier Esquirol Identifier: NCT01575912    
Other Study ID Numbers: 2012-A00047-36
First Posted: April 12, 2012    Key Record Dates
Results First Posted: May 3, 2017
Last Update Posted: June 12, 2017
Last Verified: June 2017
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No
Keywords provided by Dominique Malauzat, Centre Hospitalier Esquirol:
Major depression
Past pain experience
Additional relevant MeSH terms:
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Depressive Disorder, Major
Behavioral Symptoms
Depressive Disorder
Mood Disorders
Mental Disorders
Schizophrenia Spectrum and Other Psychotic Disorders