A randomized trial

Concentrated exposure treatment (cET) for Obsessive Compulsive Disorder (OCD)

​At the OCD-team et Haukeland University Hospital, professor Gerd Kvale and associate professor Bjarne Hansen have developed a concentrated format (The Bergen 4-day treatment) of delivering exposure based treatment: Within four consecutive days with individually tailored and therapist assisted exposure, the patients are taught how to overcome their OCD problems. The results from pilot studies and effectiveness trials are promising and the current study is pre-post control-group design where the 4-day concentrated exposure treatment (cET) is compared to a wait-list condition (WL), as well as to self-help (SH).

Principal Investigator: Professor Gerd Kvale, Haukeland University Hospital


  • Professor Joseph A. Himle, Sørlandet Sykehus/ University of Michigan, Ann Arbor
  • Professor Lars-Göran Öst, Karolinska Instututet/ OCD-team Haukeland University Hospital
  • Associate Professor Bjarne Hansen, Department of Clinical Psychology, University of Bergen/ OCD-team Haukeland University Hospital
  • MD Gunvor Launes, Head of the OCD-team, Sørlandet sykehus
  • Psychologist Sara Ege, The OCD-team, Sørlandet sykehus
  • Associate Professor Stian Solem, Department of Psychology, NTNU/ OCD-team Haukeland University Hospital
  • Psychologist Kristen Hagen, Head of the OCD-team, Helse Møre og Romsdal/ OCD-team Haukeland University Hospital

The study has been approved by the Regional Etics Committee (REK vest: 2016/794)

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