E1 ReplicatedPreliminaryPEM ?RCTPeer-reviewedMachine draft
The feasibility and acceptability of an early intervention in primary care to prevent chronic fatigue syndrome (CFS) in adults: randomised controlled trial.
O'Dowd, Hazel, Beasant, Lucy, Ingram, Jenny et al. · Pilot and feasibility studies · 2020 · DOI
Quick Summary
Researchers wanted to test whether early treatment could prevent long-term fatigue (ME/CFS) from developing in people who had recently become ill. They offered some patients psychological support and cognitive behavioural therapy alongside their regular care. However, the study found that doctors struggled to identify patients early enough, and some patients didn't find the treatment approach helpful for their situation.
Why It Matters
This study provides important information about how to design future early intervention trials for ME/CFS, identifying practical barriers that researchers and clinicians need to address. Understanding why patients and healthcare providers found certain approaches challenging can help shape more acceptable and feasible interventions. The findings highlight that preventing ME/CFS progression may require different approaches than those tested here.
Observed Findings
- Recruitment fell significantly short at 44 patients enrolled versus 100 predicted, with recruitment spanning 16 months rather than 8 months.
- GPs reported difficulty identifying patients within 4 months of symptom onset and questioned the necessity of NICE-recommended screening investigations.
- Many participants found problems with the intervention format, with specific concerns about telephone consultations and self-reflection components.
- Some participants discontinued the intervention or reported it did not align with their understanding of their condition.
- Qualitative feedback suggested participants valued some intervention components while rejecting others.
Inferred Conclusions
- A randomised controlled trial using this specific early intervention and recruitment strategy is not feasible in UK primary care.
- Changes to both recruitment methods and intervention delivery format are necessary before a full-scale trial could be attempted.
- Barriers exist at multiple levels: healthcare provider identification of eligible patients, provider attitudes toward screening protocols, and patient acceptance of the therapeutic approach.
- Future research requires redesigned intervention formats that better align with how patients and providers understand early fatigue.
Remaining Questions
What This Study Does Not Prove
This study does not demonstrate whether early intervention can or cannot prevent ME/CFS from developing, as the feasibility barriers prevented adequate testing of the intervention's effectiveness. The study's inability to recruit at predicted rates does not prove early intervention is ineffective—only that this particular recruitment method and intervention format were problematic. No conclusions can be drawn about outcomes or efficacy due to the trial's feasibility design rather than its power for statistical analysis.
Tags
Symptom:Fatigue
Method Flag:Weak Case DefinitionSmall SampleExploratory Only
Metadata
- DOI
- 10.1186/s40814-020-00595-0
- PMID
- 32426159
- Review status
- Machine draft
- Evidence level
- Replicated human evidence from multiple independent studies
- Last updated
- 8 April 2026