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Clinical and Genetic Factors Associated With Psychotic Symptoms Among Cocaine Abusers (PSYCHOCOKE)

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: NCT01569347
Recruitment Status : Completed
First Posted : April 3, 2012
Last Update Posted : December 8, 2016
Information provided by (Responsible Party):
Assistance Publique - Hôpitaux de Paris

Brief Summary:
The aim of this study is to determine the clinical, genetic and environmental factors associated with the phenotype "severe psychotic symptoms" caused by cocaine.

Condition or disease Intervention/treatment
Cocaine-induced Psychotic Disorder During Intoxication Other: Interviews Other: Blood sample Other: Hair sample

Detailed Description:
The second purpose is to include gene x environment interaction and to analyse the factors associated with the presence or the absence of severe psychotic symptoms induced by cocaine.

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Study Type : Observational
Actual Enrollment : 417 participants
Observational Model: Cohort
Time Perspective: Retrospective
Official Title: Multicentric Descriptive Cross-sectional Study Evaluating Cocaine Users in Treatment Center
Study Start Date : April 2012
Actual Primary Completion Date : November 2016
Actual Study Completion Date : November 2016

Group/Cohort Intervention/treatment
1: Cocaine users
Adults, cocaine users
Other: Interviews

Other: Blood sample
Blood sample

Other: Hair sample
Hair sample

Primary Outcome Measures :
  1. causes and protective factors of Cocaine Induced Psychosis CIP [ Time Frame: up to one day after taking cocaine ]
    1. clinical data
    2. biologic data
    3. genetic data

Secondary Outcome Measures :
  1. gene, environment interactions associated with CIP [ Time Frame: up to one day after taking cocaine ]
    clinical and genetic data

Biospecimen Retention:   Samples With DNA
  • Hair sampling: cocain and metabolit dosage (last 3 months)
  • Blood sampling : plasmatic DBH activity, polymorphisms of several genes (DBH,D2R, DAT, COMT)

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Lifetime cocaine users

Inclusion criteria:

  • Adults, cocaine users, who have signed an informed consent

Exclusion criteria:

  • Poor venous condition (for blood samples), specially protected people, non French speaking, people who refuse to sign the consent.

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): NCT01569347

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Espace Murger, Hôpital Fernand Widal
Paris, France, 75010
Sponsors and Collaborators
Assistance Publique - Hôpitaux de Paris
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Principal Investigator: Florence VORSPAN, MD, MSC Assistance Publique - Hôpitaux de Paris
Publications of Results:
Publications automatically indexed to this study by Identifier (NCT Number):
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Responsible Party: Assistance Publique - Hôpitaux de Paris Identifier: NCT01569347    
Other Study ID Numbers: NI10027 / AOM 10165
2011-A00115-36 ( Other Identifier: Eudra CT )
First Posted: April 3, 2012    Key Record Dates
Last Update Posted: December 8, 2016
Last Verified: December 2016
Keywords provided by Assistance Publique - Hôpitaux de Paris:
Cocaine-induced psychosis
Additional relevant MeSH terms:
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Mental Disorders
Psychotic Disorders
Shared Paranoid Disorder
Schizophrenia Spectrum and Other Psychotic Disorders