Adverse events and deterioration reported by participants in the PACE trial of therapies for chronic fatigue syndrome.
Dougall, Dominic, Johnson, Anthony, Goldsmith, Kimberley et al.·Journal of psychosomatic research·2014
This study looked at side effects and health changes that happened to people with ME/CFS who tried four different treatments in the PACE trial. Researchers found that side effects were common across all treatment types, but people doing graded exercise therapy (GET) and adaptive pacing therapy (APT) were more likely to experience a noticeable worsening of their physical abilities. The study suggests that the high rate of side effects may reflect how ME/CFS affects the body rather than being caused by the treatments themselves.