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Neuroinflammation, Serotonin, Impulsivity and Suicide (NISIS)

30. juni 2016 opdateret af: University Hospital, Montpellier

Suicide is a major health problem that causes annually a million death worlwide. In the stress-vulnerability model, suicidal behavior (SB) results from the interaction between an individual's predisposition (personality, family history of SB…) and stressful conditions (early life adversity).

Studies show that suicide ideations could favour inflammation and that depression is associated with an elevated inflammation.

Recent evidences also suggest that inflammatory mediators play a critical role in SB.

The aim of the study is to evaluate the inflammatory markers rate on depressed patients with or without personal history of SB.

In the second part of the study, the relations between the rates of inflammatory markers and characteristics of SB, impulsivity, psychological pain, childhood abuse and gene expression of 5HT2B receptor will be investigated.

Studieoversigt

Status

Ukendt

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Over one year, we will recruit 280 patients suffering from a major depressive episode with (n=140) and without any history of suicide attempt (n=140), from a specialized clinic for mood disorders and SB.

First visit : clinical, biological and neuropsychological assessment

Second visit, at 6 month : Follow-up visit in the department or interview by telephone in order to assess suicidal ideations or suicide attempts since the inclusion.

Undersøgelsestype

Interventionel

Tilmelding (Forventet)

280

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Frankrig
      • Montpellier, Frankrig, 34295
        • Rekruttering
        • University Hospital
        • Kontakt:

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år til 65 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Ages of 18 and 65
  • Main diagnosis of major depressive episode (DSM-IV criteria)
  • Having signed the informed consent
  • Able to understand nature, aims, and methodology of the study

Specifics Inclusion criteria:

  • Depressed patients with suicide attempt history :

    • Have done in his lifetime at least one suicide attempt (however the period of time between inclusion and suicide attempt)

  • Depressed patients without suicide attempt history :

    • Had never realized suicide attempt in his lifetime

Exclusion Criteria:

  • Patients suffering from inflammatories pathology
  • Antibiotic or anti-inflammatory current treatment
  • Pregnancy
  • Participation in another clinical trial with an exclusion period
  • Patient on protective measures (guardianship or trusteeship)

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Tildeling: N/A
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Andet: Depressive patients
Blood samples (inflammatory biomarkers and genetic purpose) on depressive patients with or without story of suicidal behavior
Biologisk: Blood sample
Blood sample in order to study inflammatory biomarkers and genetics purpose

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Rate of interleukin 2 (Il2) in a blood sample
Tidsramme: inclusion visit
Comparison of Il2 levels between patients with and without suicidal behaviour
inclusion visit

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Rate of inflammation markers (Interleukin 1, 4, 6, 8, 10, Tumor necrosis factor alpha (TNF-a), Interferon gamma (IFNg), Vascular endothelial growth factor (VEGF), kynurenin and c-reactive protein (CRP) in a blood sample
Tidsramme: inclusion visit
Comparison of the levels of theses markers between patients with and without suicidal behaviour
inclusion visit
Rate of inflammation markers and suicide attempt
Tidsramme: inclusion visit
Comparison of rate bloodmarkers inflammation (Il1, 4, 6, 8, 10, TNF-a, IFNg, VEGF, kynurenine and CRP) in depressed patients with latest suicide attempt and depressed patients with an history of suicide attempt
inclusion visit
Rate of inflammation markers and violent suicide attempt
Tidsramme: inclusion visit
Comparison of rate bloodmarkers inflammation (Il1, 4, 6, 8, 10, TNF-a, IFNg, VEGF, kynurenine and CRP) in depressed patients with and without violent suicide attempt
inclusion visit
Rate of inflammation markers and suicide ideations
Tidsramme: inclusion visit
Comparison of rate bloddmarkers (Il1, 4, 6, 8, 10, TNF-a, IFNg, VEGF, kynurenine and CRP) in depressed patients with and without current suicide ideation
inclusion visit
Relation between markers of inflammation and suicidal behavior characteristics
Tidsramme: inclusion visit
Studying relations with bloodmarkers inflammation rate (Il1, 4, 6, 8, 10, TNF-a, IFNg, VEGF, kynurenine and CRP) and suicidal behaviour characteristics (the last and the most serious) (intentionality, planification, lethality)
inclusion visit
Relation between markers of inflammation and impulsivity
Tidsramme: inclusion visit
Studying relations with bloodmarkers inflammation rate (Il1, 4, 6, 8, 10, TNF-a, IFNg, VEGF, kynurenine and CRP) and impulsivity (by Baratt Impulsivity Scale and neuropsychological tests)
inclusion visit
Relation between markers of inflammation and psychological pain
Tidsramme: inclusion visit
Studying relations with bloodmarkers inflammation rate (Il1, 4, 6, 8, 10, TNF-a, IFNg, VEGF, kynurenine and CRP) and psychological pain (by Likert scale)
inclusion visit
Relation between markers of inflammation and child abuse
Tidsramme: inclusion visit
Studying relations with bloodmarkers inflammation rate (Il1, 4, 6, 8, 10, TNF-a, IFNg, VEGF, kynurenine and CRP) and child abuse
inclusion visit
Relation between markers of inflammation and gene expression
Tidsramme: inclusion visit
Studying relations with bloodmarkers inflammation rate (Il1, 4, 6, 8, 10, TNF-a, IFNg, VEGF, kynurenine and CRP) and gene expression of 5HT2B receptor
inclusion visit
Markers of inflammation as a risk factor for suicidal behavior
Tidsramme: at 6 months
Studying bloodmarkers inflammation rate (Il1, 4, 6, 8, 10, TNF-a, IFNg, VEGF, kynurenine and CRP) as suicidal behaviour risk factor (suicide ideations and/or suicide attempt) with a 6 months follow-up.
at 6 months

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

University Hospital, Montpellier

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. november 2015

Primær færdiggørelse (Forventet)

1. maj 2017

Studieafslutning (Forventet)

1. november 2017

Datoer for studieregistrering

Først indsendt

30. juni 2016

Først indsendt, der opfyldte QC-kriterier

30. juni 2016

Først opslået (Skøn)

6. juli 2016

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

6. juli 2016

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

30. juni 2016

Sidst verificeret

1. juni 2016

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • UF9467
  • 2014-A01313-44 (Anden identifikator: ANSM)

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

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