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Bergen Four-Day Treatment (B4DT) for Obsessive-Compulsive Disorder

11. juni 2026 opdateret af: Tampere University Hospital

The aim of this study is to expand access to Bergen Four-Day Treatment (B4DT) in Finland and to integrate it into psychiatric care pathways at Tampere University Hospital (TAYS). A Bergen team has been established within TAYS Psychiatry and has been trained in collaboration with the B4DT team from HUS and the Norwegian developers. The objective of this study is to enhance understanding of the model's adaptability to the Finnish healthcare system, evaluate healthcare professionals' attitudes toward the intervention, and assess treatment outcomes.

The aim is to recruit approximately 35 patients for the study. Patients will be recruited from a minimum of three groups (15 patients) and up to a maximum of six groups (35 patients). The criteria for admission to B4DT and for participation in the study are identical. The treatment and the study may include patients receiving specialized psychiatric care at Tampere University Hospital who have been diagnosed with obsessive-compulsive disorder and who experience significant impairment due to their symptoms. In addition, personnel from TAYS Psychiatry who recommend and refer patients for B4DT will be recruited for the study. The estimated number of participating staff members is approximately 30.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

65

Fase

  • Ikke anvendelig

Kontakter og lokationer

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

Studiekontakt

Undersøgelse Kontakt Backup

Studiesteder

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

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Beskrivelse

Inclusion Criteria:

  • diagnosed with obsessive-compulsive disorder
  • willingness to participate in exposure-based treatment

Exclusion Criteria:

  • intellectual disability
  • autism spectrum disorder that precludes engagement in psychotherapeutic work
  • a psychotic disorder with current psychotic symptoms
  • underweight or very rapid weight loss affecting cognition
  • severe suicidality
  • substance dependence
  • benzodiazepine medication (use of Z-drugs as sleep medication is permitted)
  • In addition, ongoing psychotherapy may prevent participating in the B4DT.

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

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

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Bergen Four-Day Treatment
Andet: Bergen Four-Day Treatment (B4DT)
The intervention starts with a pre-assessment, during which patients' motivation, expectations, and willingness to engage in exposure practice are assessed. After the pre-assessment, patients participate in a four-day intensive treatment period based on exposure and response prevention. The intensive phase is an individualized intervention delivered within a group framework. This phase is followed by a three-month period of independent practice, with a couple of appointments with the therapist. Changes in patients' symptoms, daily functioning, and well-being are assessed. In addition, healthcare professionals' attitudes toward the intervention will be examined.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Yale-Brown Obsessive-Compulsive Scale, Self-Report (Y-BOCS-SR)
Tidsramme: From pre-assessment to the end of follow-up approximately four to six months.
Changes in OCD symptoms will be assessed using the Yale-Brown Obsessive-Compulsive Scale, Self-Report (Y-BOCS-SR), a ten-item self-report measure with each item rated from 0 to 4. Total scores range from 0 to 40, with higher scores indicating more severe symptoms.
From pre-assessment to the end of follow-up approximately four to six months.
Obsessive-Compulsive Inventory - Revised (OCI-R)
Tidsramme: From pre-assessment to the end of follow-up approximately four to six months.
In addition to the Y-BOCS, changes in OCD symptoms will be assessed using the Obsessive-Compulsive Inventory - Revised (OCI-R), which consists of 18 items, each rated from 0 to 4, with total scores ranging from 0 to 72 points. Higher scores indicate more severe symptoms.
From pre-assessment to the end of follow-up approximately four to six months.
Client Satisfaction Questionnaire (CSQ-8)
Tidsramme: From pre-assessment to the end of follow-up approximately four to six months.
Patients will be asked about their satisfaction with the treatment using the Client Satisfaction Questionnaire (CSQ-8). The CSQ-8 consists of eight items, each rated on a scale from 1 to 4, with total scores ranging from 8 to 32. Higher scores indicate greater satisfaction with the treatment.
From pre-assessment to the end of follow-up approximately four to six months.
Credibility and Expectancy Questionnaire (CEQ)
Tidsramme: approximately four months
Patients' treatment expectations will be assessed using the Credibility and Expectancy Questionnaire (CEQ). The CEQ includes six items: four rated from 1 to 9 and two from 0% to 100%, with higher scores indicating greater expectations and confidence in the treatment.
approximately four months
Self-report for healthcare professionals (AIM, IAM, FIM)
Tidsramme: approximately four months
The acceptability, appropriateness, and feasibility of the treatment will be assessed among healthcare professionals using a combination of three subscales: the Acceptability of Intervention Measure (AIM), Intervention Appropriateness Measure (IAM), and Feasibility of Intervention Measure (FIM). The AIM, IAM, and FIM each consist of four items rated on a five-point scale. Accordingly, the total score for each scale ranges from 4 to 20 points. The total 12-item score ranges from 12 to 60, with higher scores indicating greater overall treatment acceptability.
approximately four months

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Patient Health Questionnaire (PHQ-9)
Tidsramme: From pre-assessment to the end of follow-up approximately four to six months.
Secondarily, the aim is to investigate whether there are changes in patients' depressive symptoms during the treatment. Depressive symptoms will be assessed using the Patient Health Questionnaire (PHQ-9), which consists of nine items, each rated from 0 to 3, with total scores ranging from 0 to 27. Higher scores indicate more severe depressive symptoms.
From pre-assessment to the end of follow-up approximately four to six months.
Generalized Anxiety Disorder Scale (GAD-7)
Tidsramme: From pre-assessment to the end of follow-up approximately four to six months.
In addition to depressive symptoms, the aim is to examine whether there are changes in patients' anxiety symptoms during the treatment. Anxiety symptoms will be assessed using the Generalized Anxiety Disorder Scale (GAD-7), which consists of seven items scored from 0 to 3, with total scores ranging from 0 to 21. Higher scores indicate more severe anxiety symptoms.
From pre-assessment to the end of follow-up approximately four to six months.
Work and Social Adjustment Scale (WSAS)
Tidsramme: From pre-assessment to the end of follow-up approximately four to six months
Work and social functioning will be assessed using the Work and Social Adjustment Scale (WSAS), a five-item measure rated on a Likert scale from 0 ("Not at all") to 8 ("Very much"). Total scores range from 0 to 40, with higher scores indicating greater impairment in work and social functioning.
From pre-assessment to the end of follow-up approximately four to six months
Warwick-Edinburgh Mental Wellbeing Scale (WEMWBS)
Tidsramme: From pre-assessment to the end of follow-up approximately four to six months.
General wellbeing will be assessed using the Warwick-Edinburgh Mental Wellbeing Scale (WEMWBS), which consists of 14 items rated on a five-point Likert scale from 1 "Never" to 5 "All the time," yielding total scores from 14 to 70. Higher scores indicate higher perceived wellbeing.
From pre-assessment to the end of follow-up approximately four to six months.
EuroQol 5-Dimension Questionnaire (EQ-5D)
Tidsramme: From pre-assessment to the end of follow-up approximately four to six months.
Quality of life will be assessed using the EuroQol 5-Dimension Questionnaire (EQ-5D), which consists of five items scored from 1 to 5, with total scores ranging from 5 to 25. Higher scores indicate lower perceived well-being. In addition, the EQ-5D includes a one-item scale for self-assessed well-being ranging from 0 to 100%. Higher percentages indicate higher perceived well-being.
From pre-assessment to the end of follow-up approximately four to six months.

Samarbejdspartnere og efterforskere

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

Sponsor

Tampere University Hospital

Samarbejdspartnere

Tampere University

Efterforskere

  • Ledende efterforsker: Aino Mattila, Tampere University Hospital

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 (Anslået)

1. juni 2026

Primær færdiggørelse (Anslået)

1. december 2027

Studieafslutning (Anslået)

1. december 2027

Datoer for studieregistrering

Først indsendt

25. maj 2026

Først indsendt, der opfyldte QC-kriterier

11. juni 2026

Først opslået (Faktiske)

12. juni 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

12. juni 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

11. juni 2026

Sidst verificeret

1. juni 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • R26017

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

IPD-planbeskrivelse

The information sheet for research participants in this study states that the study data will not be shared and will be available only to researchers working for the Wellbeing Services County of Pirkanmaa. Patients will provide written consent only for this specific use of their personal data. This procedure has been approved by the ethics committee.

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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