Beyond Exposure: A New Path to Treating OCD Without Fear

Wolf, N., van Oppen, P., Hoogendoorn, A. W., van den Heuvel, O. A., van Megen, H. J. G. M., Broekhuizen, A., Kampman, M., Cath, D. C., Schruers, K. R. J., van Es, S. M., Opdam, T., van Balkom, A. J. L. M., & Visser, H. A. D. (2024). Inference-based cognitive behavioral therapy versus cognitive behavioral therapy for obsessive-compulsive disorder: A multisite randomized controlled non-inferiority trial. Psychotherapy and Psychosomatics, 93(6), 397–411. https://doi.org/10.1159/000541508

Summary by: Levente Szovák Brack

For clinicians and patients, the treatment of Obsessive-Compulsive Disorder (OCD) can be very difficult because the nature of treatment often involves exposure to highly anxiety-provoking stimuli related to the obsessions of the patient which is how the current “gold standard”: Cognitive Behavioural Therapy (CBT) with Exposure and Response Prevention (ERP) essentially works. While it is effective, it can be extremely difficult. It requires the patients to deliberately expose themselves to their fears and at the same time resist the urge to perform compulsions which generates significant anxiety and distress.

This intense anxiety may contribute to approximately 15% of OCD patients refusing treatment or dropping out before completing it. This leaves a room for another approach to helping those with OCD that does not require patients to face their fears so aggressively. The recent randomized controlled trial by Wolf et al. (2024) suggests that Inference-Based Cognitive Behavioural Therapy (I-CBT) could be a viable alternative for OCD patients, potentially including those unwilling or unable to complete ERP therapy due to the anxiety and distress it can cause.

In standard ERP, the goal is habituation which means getting the patient used to the trigger so the anxiety decreases over time. In contrast, I-CBT focuses on the time before anxiety spikes described as “inferential confusion”. According to the I-CBT method, OCD is not just a fear problem, it is a reasoning problem. Patients confuse "possibility" (e.g., “It’s possible there are germs on this handle”) with reality (e.g., “There are germs on this handle”).

I-CBT aims to help patients identify the flawed reasoning behind their obsessions and fears, trust their common sense, and resolve their doubts logically, making the compulsion unnecessary. The main crucial difference between I-CBT and ERP is that I-CBT does not have an exposure complement. This means there is no deliberate activation of the fear/obsession and the patient learns to tolerate anxiety and trust reality.

This study recruited 197 participants with moderate-to-severe OCD, as measured by the Yale-Brown Obsessive Compulsive Scale (Y-BOCS), and randomly assigned them to receive 20 sessions of either standard CBT (with ERP) or I-CBT. The main question was “Is I-CBT as effective as standard CBT? (Non-inferiority)".

The results showed that both treatments were highly effective. Participants in both the CBT and I-CBT groups saw statistically significant improvement in their OCD symptoms, as measured by the Y-BOCS. These improvements were long lasting at both 6-month and 12-month follow-ups.

The non-inferiority cut-off point was 2 points. At post-treatment, CBT improved OCD symptoms by 10.02 points on the Y-BOCS, while I-CBT improved symptoms by 7.97 points. The difference between the two groups was 2.05 points in favour of traditional CBT with ERP. However, the 95% confidence interval for this difference ranged from −0.11 to 4.22 points, exceeding the non-inferiority margin of 2 points. Therefore, I-CBT could not be conclusively considered non-inferior to CBT. At the same time, the difference between the treatments was not statistically significant (p = 0.06), meaning that CBT's superiority was not established either. Therefore, the results were inconclusive. I-CBT still showed a large effect size however and was also significantly more tolerable at mid and post treatment compared to CBT showing it is still a valid and viable option.

A limitation is that the CBT therapists had an average of 7.5 years of experience while the I-CBT therapists had just 0.9 years on average experience with I-CBT as most of them were trained in the technique specifically for this study. A future study where experience is more equal in both may yield different results.

The findings of Wolf et al. (2024) suggest that deliberately confronting feared situations is not the only way to reduce OCD symptoms and severity.

While standard CBT with ERP will remain a strong therapy, it is not a perfect technique for all OCD sufferers. For those who are hesitant to start the therapy because they are terrified of exposure exercises, I-CBT offers an effective alternative.

Cognitive-Behavioral treatment and antidepressants combined with virtual reality exposure for patients with chronic agoraphobia

Peñate Castro, W., Roca Sánchez, M. J., Pitti González, C. T., Bethencourt, J. M., de la Fuente Portero, J. A., & Gracia Marco, R. (2014). Cognitive-behavioral treatment and antidepressants combined with virtual reality exposure for patients with chronic agoraphobia. International Journal of Clinical and Health Psychology, 14(1), 9–17. https://doi.org/10.1016/S1697-2600(14)70032-8

Summary by: Alba Basholi

The Exposure Dilemma 

Cognitive Behavioral Therapy (CBT) in combination with in vivo exposure—which means confronting feared situations directly in real life—is considered by many as the best possible treatment for agoraphobia. But this "best treatment" also has a problem: the therapy itself is often very scary. A lot of patients feel so overwhelmed by the idea of being exposed to real-world stimuli that they either refuse to take the treatment or drop out very early. This problem has been magnified in cases of "chronic" patients—those who have been in agony for several years and might have already tried exposure a few times unsuccessfully. 

In 2014, Peñate Castro and his colleagues studied this dilemma in therapy by using Virtual Reality Exposure Therapy (VRET) as a test case. They suggested that VRET would not act as a replacement for real-world exposure; instead, it would be a vital intermediate that would not only improve adherence but also long-term outcomes for stubborn patients. 

Targeting the "Chronic" Sufferer 

The clinical trial was carried out with the utmost care, and it was mainly directed towards a difficult-to-treat population: long-term agoraphobic patients. They had been in distress for an average time of 11.46 years, with some cases lasting for as long as 30 years. To be on the safe side and for the sake of scientific rigor, the study accounted for drug variables; every participant was treated with antidepressants that had been proven effective against anxiety (Paroxetine or Venlafaxine). 

Out of 80, the subjects were assigned randomly to one of the three groups as follows: 

• CBT + Medication: They took part in the CBT with in vivo exposure, where they confronted the actual environments along with the therapists. 
• VRET + Medication: The patients were those who received the significant approach combined with a Virtual Reality system to confront the phobic scenarios (e.g., airports, squares, elevators) gradually and subsequently to the real-life exposure. 
• Medication Only: They received only medications and no psychological intervention during the study. 

A Crisis of Adherence in Standard CBT 

About clinical efficacy, the research validated that the treatment through medication alone is not enough for this group of patients. The "Medication Only" group did not have any remarkable symptom improvement between pre-treatment and post-treatment; rather, some anxiety scores slightly went up. 

The two therapy groups were compared to the drug-only group, and statistically significantly, the two therapy groups were better off. However, there was a marked difference over time, and that difference was in favor of the VRET group. At the six-month follow-up, the VRET group achieved "clinical improvement" (50% reduction in scores) for most variables, including fear and avoidance. Above all, VRET patients had a very big score decrease on the "Agoraphobia Inventory - Alone" scale, which reflects a patient`s greater ability to attend the feared places without a safety partner—a main characteristic of independence. 

The "Intermediate Step" 

The authors consider VRET to be an effective treatment because it serves as an "intermediate procedure.” A virtual simulation can be a very small but very important first step for a patient who has not used elevators for ten years. The patient boosts his self-efficacy and confronts fear in a safe environment by mastering the virtual analogue. This "scaffolding" guarantees that when they finally confront the real world, they are armed with confidence, not fear, which leads to fewer dropouts and creates a path for permanent recovery.

A systematic review of culturally adapted Cognitive Behavioral Therapy (CA-CBT) for anxiety disorders in Southeast Asia.

Praptomojati, A., Icanervilia, A. V., Nauta, M. H., & Bouman, T. K. (2024). A systematic review of culturally adapted cognitive behavioral therapy (CA-CBT) for anxiety disorders in Southeast Asia. Asian Journal of Psychiatry, (92), Article 103896. https://doi.org/10.1016/j.ajp.2023.103896

Summary by: Marsil Bader

Cognitive Behavioral Therapy (CBT) is a proven effective treatment for many anxiety disorders. However, one of the issues that arise from trying to implement CBT in each culture is that it is deeply rooted in western cultures. This raises questions about whether CBT is equally effective in non-Western cultural contexts without further adaptation. There is a growing recognition in psychological literature that there needs to be a certain effort in trying to make CBT more accessible in other eastern contexts, and cultural adaptation is essential for success in mental health intervention. The following article examines how CBT has been modified in some Southeast Asian populations to fit their cultural norms and values and potentially improve treatment effectiveness; this modification is called CA-CBT (Culturally Adapted Cognitive Behavior Therapy). 

In the following research paper, the researchers systemically reviewed and selected seven different studies that met the inclusion criteria for examining CA-CBT. Studies were included if they examined anxiety based on DSM criteria, utilized any kind of cultural adaptation for CBT, and reported outcomes related to anxiety symptoms. The studies included: One randomized controlled trial, three quasi-experimental studies, and three case reports. These studies were conducted in Thailand, Indonesia, Malaysia, and Singapore. The disorders that are mainly examined in this report are PTSD, social anxiety disorder, panic disorder, and generalized anxiety disorder. 

This article recognizes two different kinds of adaptation frameworks: peripheral adaptation (adaptations that increase treatment acceptability) and core adaptations (adaptations that change the core mechanics of the treatment to better suit the population).  These adaptations varied in depth; only four studies provided clear descriptions of how the adaptation process was conducted. 

Some of the peripheral changes that were conducted include: translating therapeutic materials, adjusting vocabulary to improve cultural relevance, and using cultural examples when talking of exposure exercises. Additionally, one Indonesian study shortened the length of CBT to respond to cultural barriers to longer treatment formats, this was a peripheral change to accommodate cultural expectations.  

In terms of core adaptations, two studies integrated religious or philosophical traditions directly into the CBT model. The study conducted in Thailand incorporated Buddhist meditation and cognitive distancing exercises into their cognitive restructuring. Furthermore, in the Malaysian case study, the researchers integrated Islamic practices, such as prayer, qur’anic referencing, and spiritual coping into the treatment process. These core changes aimed to connect cultural belief systems to the CBT model to enhance their relevance and appeal to the clients.  

Regarding effectiveness, we will examine the only RCT included in this paper. This study demonstrated that CA-CBT produced significantly greater improvements in PTSD symptoms compared to generic counseling. It remains unclear whether CA-CBT is more effective than CBT in these contexts. As the absence of comparison groups limits the strength of conclusion, this is highlighted as an issue in the studies which were picked for this analysis. Furthermore, inconsistent and incomplete reporting of cultural adaptation processes, along with a lack of transparency regarding their rationale, makes it difficult to assess replicability and develop specific guidelines for future cultural adaptations. Due to the limited number of eligible studies, a meta-analysis was not feasible, and the researchers conducted a narrative synthesis instead. 

To conclude, this paper identifies a small and growing body of research on CA-CBT, whether these adaptations involve surface-level modifications or deeper integrations of cultural or religious values. Whether these adaptations happen on a surface level or deeper integrations of cultural or religious values. Evidence suggests that CA-CBT may be acceptable and potentially effective in these specific populations, but more rigorous research must be conducted, and more randomized controlled trials need to be conducted. Future research should focus on adapting a standardized framework with full transparency concerning the cultural adaptation process.

Dialectical Behavior Therapy for posttraumatic stress disorder (DBT-PTSD) compared with cognitive processing therapy (CPT) in complex presentations of PTSD in women survivors of childhood abuse: A randomized clinical trial

Bohus, M., Kleindienst, N., Hahn, C., Müller-Engelmann, M., Ludäscher, P., Steil, R., Fydrich, T., Kuehner, C., Resick, P. A., Stiglmayr, C., Schmahl, C., & Priebe, K. (2020). Dialectical behavior therapy for posttraumatic stress disorder (DBT-PTSD) compared with cognitive processing therapy (CPT) in complex presentations of PTSD in women survivors of childhood abuse: A randomized clinical trial. JAMA Psychiatry, 77(12), 1235–1245. https://doi.org/10.1001/jamapsychiatry.2020.2148

Summary by: Gaya Julia Alt

Childhood abuse (CA) significantly increases the risk of developing posttraumatic stress disorder (PTSD) and borderline personality disorder (BPD). Standard psychotherapy and Cognitive Behavior Therapy have shown limited effectiveness for complex PTSD and BPD related to CA. Even Dialectical Behavior Therapy (DBT), the most common treatment for BPD, is less effective when PTSD co-occurs. Moreover, most trauma treatments are adapted from adult-onset PTSD. One commonly used treatment is Cognitive Processing Therapy (CPT), a trauma-focused cognitive therapy that focuses on changing dysfunctional trauma-related beliefs and emotions.  However, it is not known whether this type of treatment is also suitable for those who are struggling with CA related PTSD and BPD symptoms.  

Some researchers argue that phase-based treatments, which teach emotion regulation before addressing traumatic memories, are more appropriate for this population, while others believe standard trauma-focused therapies are sufficient. DBT-PTSD was developed as a phase-based approach tailored for CA-related PTSD and BPD, integrating cognitive behavioral therapy, compassion-focused therapy, and acceptance and commitment principles.  

The aim of this study was to compare the effectiveness of DBT-PTSD with CPT in women suffering from CA-related PTSD and BPD. Conducted between 2014 and 2016 at three sites in Germany, the study involved 131 women, with an average age of 36 (SD = 11.1) who suffered from PTSD resulting from childhood sexual or physical abuse and met at least three BPD criteria.  

First, the participants were diagnosed with PTSD and BPD. Then, the participants were randomly assigned to two groups: the CPT treatment group (n = 58) and the DBT-PTSD treatment group (n = 73). Additionally, all the participants received individual therapy. Participants' conditions were assessed at baseline and at 3, 6, 9, 12, and 15 months of post-treatment.  

The primary dependent variables were symptomatic remission, defined as absence of DSM-5 criteria for PTSD; reliable improvement, measured by a change in the Clinician-Administered PTSD Scale for DSM-5 (CAPS-5) score; and reliable recovery, defined as a combination of significant improvement along with symptomatic remission. In addition, the researchers examined Global Assessment of Functioning, PTSD checklist for DSM-5, BPD rating scales by the Borderline Symptom List (BSL), specific behavior measurement of the BSL (self-harm, high-risk behaviors, or consumption of drugs), Beck Depression Inventory–II, and the number and duration of dissociation.

To analyze the data, a power analysis was first performed to determine the sample size. For quantitative variables, mixed linear models were conducted, and for categorical variables, chi-square and Fisher's exact tests were conducted. 

The main results showed a significant improvement in both groups' CAPS-5 scores. Between-group comparison indicated that DBT-PTSD was more effective than CPT showing greater improvements in symptomatic remission and reliable recovery, although early remission was higher in the CPT group. Secondary results showed greater improvement in PTSD symptoms in the DBT-PTSD group, with a reduction in dissociation duration and intensity, significant improvements in BSL scores, significant improvements in behavior aspects of the BSL, and in the depressive symptoms.

In conclusion, DBT-PTSD was found to be more effective than CPT for individuals with childhood abuse-related PTSD and BPD, particularly in those with emotional dysregulation. The strengths of the study are randomization, and good training for therapists. The limitations of the study include the focus on a specific population, women with PTSD and BPD who suffer from emotional dysregulation.