Trial By Error: Mayo Still Champions GET

By David Tuller, DrPH

Last week I admonished the US Centers for Disease Control for including fuzzy language about exercise in its new package of “information for healthcare providers.” The way the Mayo Clinic deals with the illness it calls chronic fatigue syndrome is an excellent illustration of why it is so important for the CDC to stop fudging and get this right.

Mayo has long advocated graded exercise and cognitive behavior therapy, or what it calls on its website “cognitive training,” as key elements of its treatment plan. Here’s how Mayo’s website explains the mechanism of graded exercise: “Gradually increasing the intensity of your exercise over time may help reduce your hypersensitivity to exercise, just like allergy shots gradually reduce a person’s hypersensitivity to a particular allergen.” The hypothesis that patients are experiencing a form of hypersensitivity to exercise akin to an allergy is just that—a hypothesis. It is unclear why Mayo appears to be presenting it here as fact.

Of course, this hypothesis appears to have become a preferred explanation for the purported positive effects of GET and CBT. Now that the “deconditioning” theory championed in the PACE trial has essentially been discarded, members of the CBT/GET ideological brigades have adopted other justifications for continued adherence to their favored treatments.

Last summer, however, the CDC removed its recommendations for the two therapies from its website. That major step appears to have had no impact on the guidelines at Mayo. Lisa Alioto, a lawyer and Mayo patient as well as vice president of the Minnesota ME/CFS Alliance, recently organized a meeting to discuss the issue with a member of the clinical staff at Mayo involved with ME/CFS treatment. Here’s a summary of her account of the meeting, which also included a colleague of Alioto’s from the alliance:

The nursing manager for the department that we met with was compassionate and open to what we said and the resources we gave to her. We spent about an hour together. Our objective was to add myalgic encephalomyelitis to the name and remove GET & CBT from treatment recommendations. We told her about the March clinician summit in Utah and the unanimous vote to: 

1) Recommend the use of myalgic encephalomyelitis, which uses a different ICD code (defaults to Post Viral Infection) than Chronic Fatigue Syndrome (lumped into ICD for Chronic Fatigue);

2) Stop recommending GET and CBT.

The Mayo party line: “GET and CBT are there to stay because everyone needs some kind of exercise (even if just walking around a table).” She was open to trying to change their website to Graded Activity Therapy (GAT), but we noted that people would read right through that as GET. I pushed to have it removed from printed materials they give out and what they teach to ME/CFS patients. Not happening…

• They claimed that people showed great improvement due to exercise in their one month program; when asked if they followed up with them to see how the patients were after they left, she said they did not do that.

• We were given a packet of research articles to back up their protocol.

• Every offer we made, and contact with a list of experts we brought, was hit with unmovable force and a list of reasons.

• We indicated we could drive thousands of patients (and thus money) to them through our resources; however, she said they have more than enough patients now. We offered to set up an Unrest screening; not interested. We offered to bring in experts; not how it’s done there. We also shared personal tragic stories of several patients after they received Mayo treatment and how many more there were like this. In short, we highlighted that the Mayo is not trusted in this area and its reputation is being greatly tarnished and is spreading to other areas.

• As we wrapped up, she shared that she felt we were great advocates for these changes but that the current Medical Director was not interested in making any changes.

• Amazingly, she admitted to never hearing of Unrest, Jen Brea, etc. We shared how it’s on Netflix; however, during my Thursday Mayo visit I dropped off a thank you note for her time, along with a complimentary copy of Unrest for her and the department.  A little extra incentive to watch it. (Still shocked she had never even heard of it!)


During the meeting, Mayo provided a packet of abstracts or descriptions of more than a dozen articles, plus a summary of the 2007 NICE guidelines, to back up its recommendations. The main article cited by Mayo to support the use of graded exercise is the 2017 version of the Cochrane systematic review of exercise therapies for what Cochrane, like Mayo, calls chronic fatigue syndrome. This analysis is marred by multiple unacceptable flaws and its conclusions cannot be taken at face value; for one thing, besides the PACE trial, other studies included also suffer from being open-label trials using a broad case definition and relying on subjective outcomes.

The fact that Mayo has chosen to present this systematic review as prime evidence for the application of these misguided treatments demonstrates why Cochrane must get its act together and address this blotch on its reputation. Those who now grudgingly acknowledge that PACE is problematic still have Cochrane to fall back on. That needs to change.

Beyond that, the selection of studies overall in this packet is seriously problematic. The biggest surprise is the presence of the Lightning Process study, which flagrantly violated ethical and methodological principles. I didn’t realize that Mayo would view a woo-woo combination of neuro-linguistic programming and life-coaching to be a valid treatment approach. The packet also includes some biopsychosocial studies, along with studies about fatigue or chronic fatigue—neither of which, of course, is the same thing as chronic fatigue syndrome. The presence of these studies suggests that Mayo does not tend to recognize the difference between chronic fatigue and chronic fatigue syndrome and seems to be recommending the same treatments for both.

The Institute of Medicine and National Institutes of Health reports, both of which found ME/CFS to be a serious pathophysiological illness, are not highlighted in the Mayo packet. Neither are recent studies suggesting impairment of cellular energy metabolism. The main physiologically oriented material included is research positing the existence of “central sensitization” of fatigue pathways—an interesting but unproven hypothesis related to the also-unproven concept of exercise “hypersensitivity” similarly being promoted by Mayo.

Interestingly, PACE itself is not included, nor is the PACE reanalysis in BMC Psychology from Wilshire et al, which demolishes the reported findings. (Disclosure: I’m a co-author of that paper.) Yet for some reason Mayo has included the PACE authors’ response to Wilshire et al. This response repeats some of the self-serving and laughable non-responses the PACE authors have long offered to deflect legitimate questions about their study. It also seems odd to include a rebuttal but not the paper being rebutted.

And while citing the NICE guidelines, Mayo is ignoring the CDC’s change in recommendations. No one reading the Mayo website would have a clue that the country’s lead public health agency had specifically removed GET and CBT more than a year ago. Moreover, the NICE guidelines are of course in the process of being completely overhauled, in large part because of widespread concerns about GET and CBT. This salient fact is not mentioned in the packet of information from Mayo.

In highlighting the NICE recommendations without mentioning either the ongoing overhaul or the CDC’s own updated take on the treatments, Mayo seems to be actively withholding information that patients have a right to know–a disservice to those who trust its reputation for integrity and medical excellence. Mayo’s lack of transparency in this instance demonstrates why ME/CFS advocates are pushing NICE to suspend the current guidelines pending the introduction of the new ones, or at least to slap them with a warning label. Mayo should not be citing them without mentioning their current provisional status.

In short, Mayo is using a very biased selection of articles and ignoring other relevant information and research to support its deeply flawed and discredited approach to treatment. This apparently willful obtuseness is inexplicable, unacceptable and anti-scientific. It is also harmful to the interests and wellbeing of patients—not only those who attend the clinic but others whose treatment is influenced by the disinformation on Mayo’s website.

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