ExFACTR Study: Exploring the Feasibility of ACT for Children and young people with CFS/ME ... in prep. for an RCT. Crawley et al. Recruiting Jan 2021

not entirely sure but it could be coming out of this grant

"NIHR. Applied Research Collaborations West. £8,999,999. PI John Macleod and Esther Crawley. Theme lead for Child health. Oct 2019 – 2024"
https://www.bristol.ac.uk/academic-child-health/grants/

the protocol says
"
ExFACTR Study

Sponsor
Mr Adam Taylor
Research and Enterprise Development
University of Bristol
1 Cathedral Square, BS15DD
reseach-governance@bristol.ac.uk "

https://osf.io/6gzuh/