A systematic literature review of randomized controlled trials evaluating prognosis following treatment for adults with chronic fatigue syndrome. — CFSMEATLAS
A systematic literature review of randomized controlled trials evaluating prognosis following treatment for adults with chronic fatigue syndrome.
Ingman, Tom, Smakowski, Abigail, Goldsmith, Kimberley et al. · Psychological medicine · 2022 · DOI
Quick Summary
This review examined 15 studies testing whether cognitive behavioral therapy (CBT) and graded exercise therapy (GET) help adults with ME/CFS. About 44% of people felt better after CBT and 43% felt better after GET in the short to medium term, compared to smaller improvements in control groups. However, most studies were only moderate to weak quality, and results may not apply to people with severe ME/CFS.
Why It Matters
This review provides a comprehensive overview of evidence for two commonly recommended treatments for ME/CFS, helping patients and clinicians make informed decisions about therapy options. It identifies both the modest support for these treatments and important gaps, including that findings may not represent severe ME/CFS cases and that most outcomes relied on patient self-report rather than objective measures.
Observed Findings
44% of participants reported feeling better after CBT at short-term to medium-term follow-up
43% of participants reported feeling better after GET at post-treatment to short-term follow-up
11% reported feeling worse after CBT; 14% reported feeling worse after GET
CBT and GET showed 8-26% more favorable outcomes compared to control conditions
Two-thirds of included studies were of moderate quality; the remaining studies were of weak quality
Inferred Conclusions
The authors concluded there is some support for positive effects of CBT and GET at short-term to medium-term follow-up, though this requires further investigation given inconsistent findings in previous reviews
The clinical heterogeneity among studies and reliance on self-reported outcomes limit confidence in the findings
Results may not be generalizable to people with severe CFS
Remaining Questions
Do these treatments produce sustained benefits beyond short to medium-term follow-up, and what happens to those who report no improvement or worsening?
Why do outcomes remain inconsistent across studies, and what factors determine who benefits from CBT or GET?
What This Study Does Not Prove
This review does not prove CBT and GET are universally effective—outcomes show mixed results and the review notes inconsistent findings across studies. The research does not establish whether improvements are due to the specific treatments themselves or other factors, and importantly, findings may not apply to people with severe ME/CFS, who were largely excluded from the reviewed trials.
Tags
Symptom:Fatigue
Method Flag:PEM Not DefinedWeak Case DefinitionMixed Cohort