Introduction:
The meta-analysis by Kolala et al. (1) selected 12 studies and examined whether non-protocol-based cognitive behavioural therapy (CBT) is effective in myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) patients who have not been selected in accordance with the Oxford criteria. They chose this approach because experts have recommended that the Oxford criteria should not be used anymore because post-exertional malaise (PEM), the main characteristic of the disease, is not required for diagnosis according to these criteria.
The primary outcome of the meta-analysis was fatigue, and the authors concluded that CBT did not lead to statistically significant improvement. Nevertheless, at the same time, they concluded that individual face-to-face CBT had a large effect on reducing fatigue and that self-directed CBT had a large effect on increasing physical functioning. None of their other analyses yielded statistically significant results.
They also concluded that self-directed CBT should be used for patients with milder symptoms and that booster sessions may be required because of the lack of long-term efficacy of CBT. However, in a poster presentation for the Royal Australian and New Zealand College of Psychiatrists, they stated that CBT should be offered to all patients with ME/CFS (2).
The British National Institute for Health and Care Excellence (NICE) reviewed the literature as part of the process to update its ME/CFS guideline and concluded that CBT studies were all of low or very low quality. NICE (3) also concluded that CBT does not lead to improvement or recovery.
In this article, we analysed the evidence that was used by Kolala et al. (1) to come to their conclusions. Our analysis, however, shows that the data support the conclusions by NICE and that it does not support the conclusions of the meta-analysis. Moreover, Kolala et al. ignored the problems of the studies in their analysis.
Source: Vink M, Vink-Niese F. Commentary: Cognitive behavioural therapy for the treatment of chronic fatigue syndrome in adults: a short analysis of the meta-analysis. Front Psychiatry. 2026 Mar 27;16:1746712. doi: 10.3389/fpsyt.2025.1746712. PMID: 41969360; PMCID: PMC13067286. https://pmc.ncbi.nlm.nih.gov/articles/PMC13067286/ (Full text)