Fred Friedberg Warns Against Overstating Recovery Results in Studies of Chronic Fatigue Syndrome

July 22, 2014 – Commenting on a recently published report of a large-scale evaluation of behavioral interventions for chronic fatigue syndrome (CFS), Fred Friedberg, PhD and Jenna Adamowicz warned against overstating the capacity of any currently available therapy to produce recovery from CFS.

In January 2013, the journal Psychological Medicine published an article in which Peter White reported a recovery rate of 22% to 23% from CFS after treatments given in the PACE trial, a large scale five-year study in England and Scotland which compared the effectiveness of various forms of behavioral treatment for CFS. Dr. White and his colleagues reported that the trial demonstrated that “cognitive behavior therapy and graded exercise therapy were more effective treatments for chronic fatigue syndrome than specialist medical care (SMC) alone, when each was added to SMC.”

In their commentary, Dr. Friedberg and Ms. Adamowicz pointed out that because the term “recovery” was used to refer only to recovery from the current episode, the outcomes would more accurately be described in terms of remission rather than recovery. They noted too that the definition of recovery used in the report does not include the subjects’ perceptions of their health status, particularly if they view themselves as recovered.

They concluded that because a recovery rate below 25% still leaves the majority of patients with significant symptoms and impairments, “the publicity generated by trumpeting recovery outcomes in CFS far exceeds the relatively modest results found for most patients in behavioral treatment research.”

Dr. Friedberg is an Associate Professor and Ms. Adamowicz is a Senior Research Analyst in the Department of Psychiatry at Stony Brook University. Their commentary, titled “Reports of recovery in chronic fatigue syndrome may present less than meets the eye,” was published in the August 2014 issue of Evidence Based Mental Health. It was first published on line on May 21, 2014. The recovery data from the PACE trial were reported in an article by Peter D. White, et al. published in the October 13 edition of Psychological Medicine under the title “Recovery from chronic fatigue syndrome after treatments given in the PACE trial.”