Effectiveness and feasibility of intensive versus regular cognitive behaviour therapy in patients with anxiety and obsessive-compulsive disorders: A meta-analysis

•Relative effectiveness of intensive CBT formats is an understudied area of research.•Intensive CBT did not differ from regular CBT in reducing anxiety and obsessive-compulsive symptoms.•Intensive CBT was better than regular CBT in reducing comorbid depressive symptoms.•Dropout was understudied but...

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Published inJournal of affective disorders reports Vol. 6; p. 100267
Main Authors Remmerswaal, Karin C.P., Lans, Luuk, Seldenrijk, Adrie, Hoogendoorn, Adriaan W., van Balkom, Anton J.L.M., Batelaan, Neeltje M.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.12.2021
Elsevier
Subjects
Anxiety disorder
Intensive CBT
Massed CBT
Meta-analysis
OCD
Psychiatric/Mental Health
OCD
Massed CBT
Intensive CBT
Anxiety disorder
Meta-analysis
Online AccessGet full text
ISSN2666-9153
2666-9153
DOI10.1016/j.jadr.2021.100267

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Abstract •Relative effectiveness of intensive CBT formats is an understudied area of research.•Intensive CBT did not differ from regular CBT in reducing anxiety and obsessive-compulsive symptoms.•Intensive CBT was better than regular CBT in reducing comorbid depressive symptoms.•Dropout was understudied but is significant to gain insight into feasibility.•Intensive CBT achieves faster results due to shorter lead time and is promising. Since the introduction of cognitive behaviour therapy (CBT), researchers are searching for the optimum schedule of sessions to maximize the effectiveness. In the last decades, intensive treatments - multiple long sessions in a few weeks - became popular in patients with anxiety disorders and obsessive-compulsive disorder (OCD). However, it is still unknown whether intensive CBT is superior to regular CBT (short weekly sessions for several months). This meta-analysis examined whether intensive CBT is superior to regular CBT in patients with anxiety disorders and OCD in reducing anxiety, obsessive-compulsive (OC) and comorbid depressive symptoms, and in reducing dropout. A systematic literature search was performed in PubMed, PsycINFO and Embase in which words indicative of an anxiety disorder or OCD were combined with intensive treatment and CBT. We identified 5012 unique studies. Two randomised controlled trials (RCTs) and four non-RCTs were included, pertaining to 393 subjects. Intensive CBT and regular CBT did not statistically differ in reducing anxiety or OC symptoms from pre- to post-treatment and from post-treatment to follow-up. However, intensive CBT was significantly better in reducing depressive symptoms from pre- to post-treatment (g = 0.25; 95% CI: (0.04, 0.45)). Dropout was only reported in two studies and could thus not be meta-analysed. The included studies were limited in number and quality. High-quality RCTs are needed to assess both effectivity and feasibility of intensive CBT. Meanwhile, intensive CBT might be preferable for patients with comorbid depression or for those needing fast improvement, due to its shorter lead time.
AbstractList Highlights•Relative effectiveness of intensive CBT formats is an understudied area of research. •Intensive CBT did not differ from regular CBT in reducing anxiety and obsessive-compulsive symptoms. •Intensive CBT was better than regular CBT in reducing comorbid depressive symptoms. •Dropout was understudied but is significant to gain insight into feasibility. •Intensive CBT achieves faster results due to shorter lead time and is promising.
•Relative effectiveness of intensive CBT formats is an understudied area of research.•Intensive CBT did not differ from regular CBT in reducing anxiety and obsessive-compulsive symptoms.•Intensive CBT was better than regular CBT in reducing comorbid depressive symptoms.•Dropout was understudied but is significant to gain insight into feasibility.•Intensive CBT achieves faster results due to shorter lead time and is promising. Since the introduction of cognitive behaviour therapy (CBT), researchers are searching for the optimum schedule of sessions to maximize the effectiveness. In the last decades, intensive treatments - multiple long sessions in a few weeks - became popular in patients with anxiety disorders and obsessive-compulsive disorder (OCD). However, it is still unknown whether intensive CBT is superior to regular CBT (short weekly sessions for several months). This meta-analysis examined whether intensive CBT is superior to regular CBT in patients with anxiety disorders and OCD in reducing anxiety, obsessive-compulsive (OC) and comorbid depressive symptoms, and in reducing dropout. A systematic literature search was performed in PubMed, PsycINFO and Embase in which words indicative of an anxiety disorder or OCD were combined with intensive treatment and CBT. We identified 5012 unique studies. Two randomised controlled trials (RCTs) and four non-RCTs were included, pertaining to 393 subjects. Intensive CBT and regular CBT did not statistically differ in reducing anxiety or OC symptoms from pre- to post-treatment and from post-treatment to follow-up. However, intensive CBT was significantly better in reducing depressive symptoms from pre- to post-treatment (g = 0.25; 95% CI: (0.04, 0.45)). Dropout was only reported in two studies and could thus not be meta-analysed. The included studies were limited in number and quality. High-quality RCTs are needed to assess both effectivity and feasibility of intensive CBT. Meanwhile, intensive CBT might be preferable for patients with comorbid depression or for those needing fast improvement, due to its shorter lead time.
Background: Since the introduction of cognitive behaviour therapy (CBT), researchers are searching for the optimum schedule of sessions to maximize the effectiveness. In the last decades, intensive treatments - multiple long sessions in a few weeks - became popular in patients with anxiety disorders and obsessive-compulsive disorder (OCD). However, it is still unknown whether intensive CBT is superior to regular CBT (short weekly sessions for several months). Methods: This meta-analysis examined whether intensive CBT is superior to regular CBT in patients with anxiety disorders and OCD in reducing anxiety, obsessive-compulsive (OC) and comorbid depressive symptoms, and in reducing dropout. A systematic literature search was performed in PubMed, PsycINFO and Embase in which words indicative of an anxiety disorder or OCD were combined with intensive treatment and CBT. Results: We identified 5012 unique studies. Two randomised controlled trials (RCTs) and four non-RCTs were included, pertaining to 393 subjects. Intensive CBT and regular CBT did not statistically differ in reducing anxiety or OC symptoms from pre- to post-treatment and from post-treatment to follow-up. However, intensive CBT was significantly better in reducing depressive symptoms from pre- to post-treatment (g = 0.25; 95% CI: (0.04, 0.45)). Dropout was only reported in two studies and could thus not be meta-analysed. Limitations: The included studies were limited in number and quality. Conclusions: High-quality RCTs are needed to assess both effectivity and feasibility of intensive CBT. Meanwhile, intensive CBT might be preferable for patients with comorbid depression or for those needing fast improvement, due to its shorter lead time.
ArticleNumber 100267
Author Seldenrijk, Adrie
Hoogendoorn, Adriaan W.
Batelaan, Neeltje M.
van Balkom, Anton J.L.M.
Lans, Luuk
Remmerswaal, Karin C.P.
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Keywords OCD
Massed CBT
Intensive CBT
Anxiety disorder
Meta-analysis
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Snippet •Relative effectiveness of intensive CBT formats is an understudied area of research.•Intensive CBT did not differ from regular CBT in reducing anxiety and...
Highlights•Relative effectiveness of intensive CBT formats is an understudied area of research. •Intensive CBT did not differ from regular CBT in reducing...
Background: Since the introduction of cognitive behaviour therapy (CBT), researchers are searching for the optimum schedule of sessions to maximize the...
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StartPage 100267
SubjectTerms Anxiety disorder
Intensive CBT
Massed CBT
Meta-analysis
OCD
Psychiatric/Mental Health
Title Effectiveness and feasibility of intensive versus regular cognitive behaviour therapy in patients with anxiety and obsessive-compulsive disorders: A meta-analysis
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