ArticleFrontiers in psychology2019
A Randomized Controlled Trial of Concentrated ERP, Self-Help and Waiting List for Obsessive- Compulsive Disorder: The Bergen 4-Day Treatment.
Article in Frontiers in psychology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02886780 (Concentrated Exposure Treatment), which is not on this map. Cited by 40 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Concentrated Exposure Treatment (cET) for Obsessive Compulsive Disorder (OCD). A Randomized Controlled Trial (RCT)
Who cites it
40 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Intensive cognitive behavioral therapy for obsessive-compulsive disorder: a meta-analysis of randomized controlled trials.Frontiers in psychiatry · 2026Pooled it
- Concentrated Exposure Therapy vs Internet-Based Cognitive Behavioral Therapy for Obsessive-Compulsive Disorder: A Randomized Clinical Trial.JAMA network open · 2026Trial
- Motivation in the Bergen 4-day treatment for obsessive-compulsive disorder.BMC psychiatry · 2025Trial
- Treatment expectancy and credibility as predictors of concentrated exposure treatment outcomes in patients with difficult-to-treat obsessive-compulsive disorder.BMC psychiatry · 2025Trial
- The Bergen 4-day treatment for social anxiety disorder: a pilot study.BMC psychiatry · 2024Trial
- Trial
- The Bergen 4-day treatment for panic disorder: replication and implementation in a new clinic.BMC psychiatry · 2022Trial
- Concentrated transdiagnostic and cross-disciplinary group treatment for patients with depression and with anxiety: a pilot study.BMC psychiatry · 2022Trial
- Effect of D-Cycloserine on the Effect of Concentrated Exposure and Response Prevention in Difficult-to-Treat Obsessive-Compulsive Disorder: A Randomized Clinical Trial.JAMA network open · 2020Trial
- The Bergen 4-Day OCD Treatment: A Comprehensive Scoping Review of Evidence and Implementation.Acta psychiatrica Scandinavica · 2026Article
- Does High-Intensity Exercise Combined with Exposure Sessions Improve Treatment Outcomes in Obsessive-Compulsive Disorder? A Randomized Controlled Trial in Inpatients.Psychotherapy and psychosomatics · 2026Article
- Case Report: A Multimodal Treatment Approach Combining Multi-Target rTMS with a Modified, Largely Self-Administered, Clinician-Supervised Exposure and Response Prevention Protocol Using a Verbal Termination Cue in Two Patients with Severe Obsessive-Compulsive Disorder.Journal of clinical medicine · 2026Article
- Epigenetic markers of response to psychotherapy in obsessive-compulsive disorder.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026Article
- Making Sense of Non-Response: What Patients Teach Us About Concentrated Exposure Therapy for Obsessive Compulsive Disorder.Journal of clinical medicine · 2026Article
- Functional connectivity changes in obsessive-compulsive disorder following exposure and response prevention.Translational psychiatry · 2026Article
- Brief treatments for panic disorder: a pilot study of the bergen repeated one-session treatment format.BMC psychiatry · 2026Article
- Clinical practice guidelines for obsessive-compulsive disorder: 2025 update.Indian journal of psychiatry · 2026Article
- [Update on obsessive-compulsive and related disorders].Der Nervenarzt · 2025Article
- The bergen 4-day treatment for panic disorder: a longer-term follow-up.BMC psychiatry · 2025Article
- Experiences With a Novel Micro-Choice-Based Concentrated Group Intervention for People With Type 2 Diabetes: A Qualitative Study.The science of diabetes self-management and care · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe Bergen 4-day treatment (B4DT) is a concentrated exposure-based treatment for patients with Obsessive-Compulsive Disorder (OCD) delivered during four consecutive days. The B4DT has in a number of effectiveness studies demonstrated promising results as approximately 90% of patients gain reliable clinical change post-treatment and nearly 70% are recovered on a long-term basis.
methodsThe current study is the first randomized controlled trial evaluating the effects of the B4DT. Forty-eight patients diagnosed with OCD were randomized to B4DT, self-help (SH), or waiting list (WL) with 16 patients in each condition. All participants randomized to the B4DT underwent the treatment without any attrition.
resultsThe B4DT yielded significantly better effects than control conditions on measures of OCD, depression, and generalized anxiety. The response rate (≥35% reduction of the individual patient's pre-treatment Y-BOCS score) was 93.8% in B4DT, 12.5% in SH and 0% in WL, while remission rate (response criterion is fulfilled and the post-treatment Y-BOCS score is ≤12 points) was 62.5%, 6.3%, and 0%, respectively. Furthermore, patients who had received the B4DT, showed improved work- and social functioning. None of the patients treated with B4DT showed signs of deterioration. In comparison, one patient in the SH condition was in remission, and one showed significant clinical improvement, whereas the remaining showed no change.
conclusionThe results indicate that the B4DT is an effective treatment for patients suffering from OCD. CLINICAL
trial registrationwww.ClinicalTrials.gov, identifier NCT02886780.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.