A randomised wait-list controlled trial to evaluate Emotional Freedom Techniques for self-reported cancer-related cognitive impairment in cancer survivors (EMOTICON)

Randomized trial👥 121 participants⚖️ vs. wait-list controlHigher rigor✓ Source-checked📍 Belgium

In plain English. 121 cancer survivors dealing with "chemo brain" — foggy thinking and memory problems after treatment — either started tapping right away or were put on an 8-week waiting list first. After 8 weeks, most of the waiting group still had cognitive complaints (87%), while far fewer of the tapping group did (41%) — and once the waiting group got their turn to tap, they caught up to the same improvement. Distress, depression, tiredness, and quality of life all improved too. This is one of the largest and best-designed tapping trials in cancer survivors to date.

What they found

121

people took part

121 cancer survivors with self-reported cognitive impairment (CFQ≥43) were randomized to immediate EFT treatment or an 8-week wait-list; at 8 weeks, 40.8% of the immediate-treatment group still screened positive for cognitive impairment versus 87.3% of the wait-list group (p<0.01), and the wait-list group caught up to a similar level of improvement after their own 8 weeks of EFT; distress, depressive symptoms, fatigue, and quality of life also improved significantly.

How the study worked

Who took partcancer survivors who had completed curative treatment and screened positive for self-reported cancer-related cognitive impairment ("chemo brain") (n=121)

What they didIn a randomized controlled trial, participants were randomly assigned to receive tapping or a comparison condition, then measured and compared.

Compared withwait-list control

Measured withCognitive Failures Questionnaire (CFQ), distress, depressive symptoms, fatigue, quality of life (EQ-5D)

💡 Where this could help

If this pattern holds in bigger, multi-site trials, picture a cancer survivor months past their last chemo infusion, still fighting the fog that makes work and daily life feel foreign, given a free, self-administered technique to try on their own schedule while formal cognitive rehab programs, which require ongoing clinician time, stay out of reach. This could matter most for survivors who've been told 'chemo brain' just has to be endured.

🔬 What to study next

'Chemo brain' is increasingly linked to inflammatory cytokines and HPA-axis dysregulation from treatment, so the next step is testing whether EFT's cognitive improvement here tracks with falling inflammatory markers (IL-6, CRP) or cortisol normalization, backed by objective cognitive testing rather than self-report alone. A multi-site trial adding actigraphy for fatigue and a longer follow-up past 8 weeks would show whether this is a durable, biologically grounded recovery or a temporary attention effect.

The full record

Design	Randomized trial
Participants	121 people
Population	cancer survivors who had completed curative treatment and screened positive for self-reported cancer-related cognitive impairment ("chemo brain")
Comparison group	wait-list control
Outcome measures	Cognitive Failures Questionnaire (CFQ), distress, depressive symptoms, fatigue, quality of life (EQ-5D)
Journal	eClinicalMedicine
Year	2021
Country	Belgium
Language	English
Method	EFT / tapping
Publication type	Study / trial
Verification	✓ Confirmed against the primary source

Read the original study →

Cite this study

APA

Tack, L., Lefebvre, T., Lycke, M., Langenaeken, C., Fontaine, C., Borms, M., Hanssens, M., Knops, C., Meryck, K., Boterberg, T., Pottel, H., Schofield, P., & Debruyne, P.R. (2021). A randomised wait-list controlled trial to evaluate Emotional Freedom Techniques for self-reported cancer-related cognitive impairment in cancer survivors (EMOTICON). eClinicalMedicine. https://doi.org/10.1016/j.eclinm.2021.101081

This record is part of the Tapping Evidence Base — an openly-sourced, fully-referenced directory of the research on EFT/tapping. Explore more studies on Cancer & Serious Illness