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  1. The schizophrenia ketamine challenge study debate.

    Article - En anglais

    Protection of subjects in psychiatric research is an issue of considerable public and professional interest.

    Perhaps the most hotly debated issue concerns challenge study protocols where symptoms of illness are increased in a bioassay designed to gain knowledge of pathophysiology.

    Although widely used in biomedical research, the ethics of this application in mental illness research are contested.

    At issue is whether acute distress and lasting harm are caused without direct benefit in vulnerable subjects without valid informed consent.

    The ketamine challenge study in schizophrenia subjects is at the vortex of the current debate.

    This report presents background data on ketamine safety and a qualitative and quantitative analysis of data from all schizophrenia subjects in North American ketamine studies.

    Duration and severity of change in psychosis and anxiety, « worst case » experiences, and information on prolonged adverse effects are detailed.

    The vulnerable population and informed consent issue is discussed.

    Group results show that psychosis increase is mild to moderate and brief anxiety is mild and brief, and no evidence of prolonged adverse effects is found.

    Few « worst case » incidents were identified, and these were clinically managed successfully in a short time period. (...)

    Mots-clés Pascal : Schizophrénie, Induction, Symptomatologie, Kétamine, Recherche scientifique, Ethique, Consentement éclairé, Article synthèse, Homme, Psychose, Phencyclidine dérivé

    Mots-clés Pascal anglais : Schizophrenia, Induction, Symptomatology, Ketamine, Scientific research, Ethics, Informed consent, Review, Human, Psychosis

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 99-0512706

    Code Inist : 002B18C06A. Création : 18/05/2000.