Denne side blev automatisk oversat, og nøjagtigheden af ​​oversættelsen er ikke garanteret. Der henvises til engelsk version for en kildetekst.

Belief Update: The Effects of Depression and Antidepressants in Older People (OLDBELIEFS)

26. juni 2026 opdateret af: Hospital Center Guillaume Régnier

People in good health do not perceive the future in the same way as those suffering from depression. This difference in perception affects behaviour and emotions and warrants further investigation, both before and after treatment with antidepressants. Research shows that past negative experiences with medication can reduce the effectiveness of treatment, whilst positive expectations can increase it. It is important to gain a better understanding of how antidepressants influence the way in which elderly people with major depressive disorder (MDD) change their beliefs, and to determine whether an improvement in their depressive symptoms is linked to these changes in their beliefs. This study aims to understand whether antidepressants can alter the way people view the future and whether this contributes to their effectiveness. It also seeks to determine whether patients' expectations regarding treatment influence clinical outcomes, and whether changes in their mood may in turn affect these expectations. The study will involve 31 patients aged 65 and over who are suffering from a depressive disorder and require a change of antidepressant, and 31 healthy subjects, also aged 65 and over. The participants' involvement will last for 12 weeks.

During a medical consultation, once the doctor has checked that the participant meet all the study's eligibility criteria, they will ask for the participant consent to take part in the study. The participant will then be asked to answer one question about what you hope to gain from the new antidepressant treatment that the doctor will prescribe for the participant. Finally, the participant will carry out a belief-updating exercise, which involves : presenting the participant with a series of events and ask them to indicate how likely they think each of them is to occur, and then. Once they have received further information about these events, ask them to reassess the likelihood of them occurring. This task will be carried out again 12 weeks after the participant start taking their antidepressant, during a consultation required as part of their individual care plan. From the first week of antidepressant treatment until week 12, the participant will be contacted by telephone once a week to answer two short questions about their expectations regarding the treatment and any changes in your mood.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

62

Fase

  • Ikke anvendelig

Kontakter og lokationer

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

Studiekontakt

Studiesteder

      • Rennes, Frankrig, 35700
        • Ikke rekrutterer endnu
        • Centre Hospitalier Guillaume Régnier
        • Kontakt:
      • Rennes, Frankrig, 35700
        • Rekruttering
        • Centre Hospitalier Guillaume Régnier
        • 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

  • Ældre voksen

Tager imod sunde frivillige

Ja

Beskrivelse

Inclusion Criteria for patients with major depressive disorder :

  • Patient over 65 years old in outpatient care
  • Patients with major depressive disorder or patients with bipolar major depressive disorder as evaluated by the Mini International Neuropsychiatric Interview (MINI) semi-structured interview for the group suffering from depression
  • Absence of cognitive impairment as evidenced by an MMSE (Mini Mental State Examination) ≥ 24
  • MADRS ≥ 20
  • MMSE ≥ 24
  • Change of antidepressants
  • Person affiliated with a social security scheme
  • Patients who have received informed information about the study and have signed a consent form to participate in the study

Exclusion Criteria with major depressive disorder :

  • mental disorders other than mood disorders : attention deficit dissorder, borderline personality disorder, schizophrenia, autism spectrum disorder, anorexia-bulimia disorder, obsessive-compulsive disorder, anxiety disorders and substance use disorder (except tobacco).
  • Inability to understand task instructions and perform the behavioral task
  • Neurological or neurosurgical comorbidities
  • Major visual impairment
  • Adults under state medical aid
  • Adults under legal protection (legal guardianship, curatorship, trusteeship), persons deprived of their liberty

Inclusion Criteria for patients with major depressive disorder :

  • Absence of psychiatric disorders attested by administration of the MINI
  • Absence of cognitive impairment as evidenced by an MMSE ≥ 24

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Grundvidenskab
  • Tildeling: Ikke-randomiseret
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Group with major depressive disorder
The patients are assessed using the MADRS score upopn inclusion (after the wash-out, before the new treatment) and 12 weeks later, after the treatment. The patient are also assessed by looking at the overall changes in atitude, the first time upon inclusion and after every week until the end of the treatment 12 weeks later.
Placebo komparator: Group without major depressive disorder
The patients are assessed using the MADRS score upopn inclusion (after the wash-out, before the new treatment) and 12 weeks later, after the treatment. The patient are also assessed by looking at the overall changes in atitude, the first time upon inclusion and after every week until the end of the treatment 12 weeks later.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Difference in MADRS (Montgomery-Asberg Depression Rating Scale) score before versus after treatment.
Tidsramme: From enrollment to the end of the data collecting process : 3 months.
The aim is to assess whether any changes in the severity of major depressive episodes (MDEs) following treatment with conventional antidepressants are associated with changes in belief updating in older patients with MDEs compared to healthy volunteers. This is assessed by using the MADRS scale and by looking at all changes in the updating of beliefs. Upon inclusion, patients are assessed using the MADRS. Patients are also assessed 12 weeks later after treatment. Score ranges from 0 to 60. The higher the score, the more severe the disorder is.
From enrollment to the end of the data collecting process : 3 months.

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Difference in treatment expectations
Tidsramme: From enrollment to the end of the data collecting process : 3 months
Assess whether changes in treatment expectations over time are associated with clinical improvement in depression. The patients are assessed by using the MADRS scale for the first time upon inclusion and for a second time 12 weeks later (after tratment). Score ranges from 0 to 60. The higher the score, the more severe the disorder is.
From enrollment to the end of the data collecting process : 3 months
Difference in treatment expectations
Tidsramme: From enrollment to the end of the data collecting process : 3 months

Assess whether changes in treatment expectations over time are associated with changes in subjective mood assessment over time.

This is assessed by looking at all changes in the updating of beliefs, the first time upon inclusion and the second time, 12 weeks later (after treatment).

From enrollment to the end of the data collecting process : 3 months

Samarbejdspartnere og efterforskere

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

Sponsor

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

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 (Faktiske)

14. januar 2025

Primær færdiggørelse (Anslået)

1. oktober 2027

Studieafslutning (Anslået)

1. oktober 2027

Datoer for studieregistrering

Først indsendt

26. juni 2026

Først indsendt, der opfyldte QC-kriterier

26. juni 2026

Først opslået (Faktiske)

2. juli 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

2. juli 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

26. juni 2026

Sidst verificeret

1. april 2026

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • RNI24_01_GR
  • 2024-A02279-38 (Anden identifikator: ANSM)

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

IPD-planbeskrivelse

Data about study protocol and clinical information will be available on request from other researchers.

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .