Asserting privilege: PACE investigators’ request that their manuscript not be peer reviewed or receive replies

Quick thoughts blog post by James C Coyne, 11 July 2017: Asserting privilege: PACE investigators’ request that their manuscript not be peer reviewed or receive replies

After demanding parts of an article published in the Journal of Health Psychology be retracted, the PACE investigators requested their response be published without peer review and with no comments allowed.

This episode is part of a continuing saga of the PACE investigators attempts to exert extraordinary control over what is said about their work.

The predicament of the scientific community with respect to the PACE trial fits well with John Ioannidis  has termed “scientific inbreeding” where an interconnected group is able, temporarily at least, to dominate a scientific area and control and contain criticism of flaws consistently characterizing their work. We may well be witnessing a break in that control and the beginning of a decline effect, where independent critique and re-analysis of data make those flaws more inescapably obvious.

The emails that will be reproduced below came after the PACE investigators lobbied some members of editorial board and asked them to demand the article be retracted and to threaten resignation if it were not retracted.

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MEA research grant to Dr Keith Geraghty to examine two controversial ME/CFS treatments recommended by NICE

ME Association blog post, 13 July 2017: ME Association provide new research grant to Dr Keith Geraghty to examine two controversial ME/CFS treatments recommended by NICE

ME Association trustees have approved a new research grant that will critically examine the theoretical basis that underlies the use of Cognitive Behavioural Therapy (CBT) and Graded Exercise Therapy (GET) in ME/CFS.

The £25,000 grant – over two years – has been given to Dr Keith Geraghty at the University of Manchester and will challenge and review the theoretical basis and clinical application of CBT and GET in the NHS.

Dr Geraghty is an Honorary Research Fellow in Population Health, Health Sciences Research and Primary Care, where his work focuses on ME and CFS.

This new grant will fund an incremental study, in two main phases: phase 1 being a theoretical exploration of the CBT-model of ME/CFS and phase 2 being an empirical study of patients’ experiences of CBT and GET.

Its aim will be to better understand why clinical trials are reporting seemingly different effects than are demonstrated in patient surveys and clinical outcomes.

The hypotheses driving this research are that many of the benefits reported in clinical trials, even where modest, may actually come from factors unrelated to illness belief modification, such as therapy effects, stress management advice, lifestyle advice, the power of suggestion (being asked to think more positively).

The research will also examine whether patients are adequately informed of the rationale for CBT and GET therapies, or are entered into such treatments with strong promotion by physicians and therapists – thus increasing therapy and expectancy effects.

Also, that many false positive cases of ME/CFS may be diagnosed (primarily mental health complaints that mimic the symptoms of ME/CFS – such as fatigue and sleep disturbance), in the absence of careful screening and a proper understanding of the illness. This could mean we are not seeing a true record of outcomes for a ME/CFS population.

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Subtyping patients with ME & CFS by course of illness

Research Abstract:

Subtyping Patients with Myalgic Encephalomyelitis (ME) and Chronic Fatigue Syndrome (CFS) By Course of Illness, by Jamie Stoothoff, Kristen Gleason, Stephanie McManimen, Taylor Thorpe and Leonard A. Jason in Symbiosis: Journal of Biosensors, Biomarkers and Diagnostics [Published: June 26, 2017]

Past research has subtyped patients with Myalgic Encephalolyelitis (ME) and Chronic Fatigue Syndrome (CFS) according to factors related to illness onset, illness duration, and age. However, no classification system fully accounts for the wide range of symptom severity, functional disability, progression, and prognosis seen among patients.

This study examined whether illness trajectories among individuals with CFS were predictive of different levels of symptomology, functional disability, and energy expenditure.

Of the participants (N=541), the majority described their illness as Fluctuating (59.7%), with 15.9% Constantly Getting Worse, 14.1% Persisting, 8.5% Relapsing and Remitting, and 1.9% Constantly Getting Better. The illness courses were associated with significant differences in symptomology on select domains of the DSQ, functioning on select subscales of the SF-36, and on overall levels of energy expenditure.

The significant symptomatic and functional differences between groups suggest that subtyping patients with CFS according to illness course is a promising method for creating more homogeneous groups of patients.

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Medial prefrontal cortex deficits correlate with unrefreshing sleep in patients with CFS

Research abstract:

Medial prefrontal cortex deficits correlate with unrefreshing sleep in patients with chronic fatigue syndrome, by Zack Y. Shan, Richard Kwiatek, Richard Burnet, Peter Del Fante,  Donald R. Staines, Sonya M. Marshall-Gradisnik and Leighton R. Barnden in NMR in Biomedicine [Published online: 29 JUN 2017]

Unrefreshing sleep is a hallmark of chronic fatigue syndrome/myalgic encephalomyelitis (CFS).

This study examined brain structure variations associated with sleep quality in patients with CFS. 38 patients with CFS (34.8 ± 10.1 years old) and 14 normal controls (NCs) (34.7 ± 8.4 years old) were recruited.

All subjects completed the Hospital Anxiety and Depression Scale, Pittsburgh Sleep Quality Index (PSQI), and Chalder Fatigue Scale (CFQ) questionnaires. Brain MRI measures included global and regional grey and white matter volumes, magnetization transfer T1 weighted (MT-T1w) intensities, and T1 weighted (T1w) and T2 weighted spin echo signal intensities.

We performed voxel based group comparisons of these regional brain MRI measures and regressions of these measures with the PSQI and CFQ scales adjusted for age, anxiety and depression, and the appropriate global measure.

In CFS patients, negative correlations were observed in the medial prefrontal cortex (mPFC) between PSQI and MT-T1w intensities (family-wise error corrected cluster, PFWE < 0.05) and between PSQI and T1w intensities (PFWE < 0.05). In the same mPFC location, both MT and T1w intensities were lower in CFS patients compared with NCs (uncorrected voxel P < 0.001).

This study is the first to report that brain structural differences are associated with unrefreshing sleep in CFS. This result refutes the suggestion that unrefreshing sleep is a misperception in CFS patients and further investigation of this symptom is warranted.

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US health agency, CDC, drops CBT/GET on website

Article excerpts:

Virology blog post, by David Tuller, DrPH, 10 July 2017: Trial By Error: The CDC Drops CBT/GET

Just as The Lancet has published more “evidence” for graded exercise, the CDC has moved decisively in the opposite direction. In revamping the information on the part of its website geared toward the general public, the agency has “disappeared” all mention of CBT and GET as treatment or management strategies. Patients and advocates have long pushed for this step, as did Julie Rehmeyer and I in a New York Times opinion piece in March.

Although the revised text is dated as having been reviewed on May 30th, it apparently went live sometime during the first week of July. (The CDC has still not revised the pages designed for health care providers, although old information has been removed. The agency calls the illness ME/CFS.)For advocates, the CDC’s removal of the CBT/GET recommendations represents a major victory. “I think it’s huge,” said Mary Dimmock, an advocate who has long pressured the CDC to revise its website. Given the agency’s stature, she added, the decision could have widespread impact, not just in the U.S. but internationally as well. Many health care providers and institutions here and abroad look to the CDC for guidance in public health matters.

“So many patients have been made worse by the treatments,” said Dimmock, who became an advocate after her son became seriously ill several years ago. “While there is more to be done, removing these recommendations is a significant step forward in protecting ME patients from harm.”

In the revision, the CDC website has dropped the agency’s 1994 definition of the illness. The new definition, based on the one proposed in a 2015 report from the Institute of Medicine (now the Academy of Medicine), requires the presence of “post-exertional malaise.” In the 1994 definition, that was only one of eight optional symptoms. The immediate implication of the shift is that GET should likely be considered contraindicated, given the premium this intervention places on steadily boosting activity levels. The form of CBT prescribed in PACE could also be contraindicated, since the ultimate goal of that intervention is likewise to increase activity. (The CDC has not adopted the name proposed by the IOM report, “systemic exertion intolerance disease.”)

In addition to symptomatic relief, the revised CDC website suggests such management strategies as a balanced diet, nutritional supplements and complementary medicine. Here’s some of the new language on managing the illness that has displaced the previous sections on GET and CBT:

*Avoiding ‘push-and-crash’ cycles through carefully managing activity. “Push-and-crash” cycles are when someone with ME/CFS is having a good day and tries to push to do more than they would normally attempt (do too much, crash, rest, start to feel a little better, do too much once again). This can then lead to a “crash” (worsening of ME/CFS symptoms). Finding ways to make activities easier may be helpful, like sitting while doing the laundry or showering, taking frequent breaks, and dividing large tasks into smaller steps.

*Talking with a therapist to help find strategies to cope with the illness and its impact on daily life and relationships.

Of course, avoiding “push-and-crash” is what patients already do when they practice pacing. The “push-and-crash” language itself appears to be closely aligned with the arguments provided by the PACE investigators and their colleagues; many patients might describe their experiences differently. Nevertheless, removing the CBT/GET recommendations is a welcome step, if overdue. For years, patients and advocates pointed out the problems with PACE and related research, and also cited the evidence that too much exertion caused harm because of physiological abnormalities, not the deconditioning presumed by CBT and GET. But until now, the agency refused to make the necessary changes.

Read the full article

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CFS patients have no reason to accept the PACE trial results

Article abstract:

Chronic fatigue syndrome patients have no reason to accept the PACE trial results: Response to Keith J Petrie and John Weinman, by Susanna Agardy in Journal of Health Psychology [First Published June 27, 2017]

Petrie and Weinman urge chronic fatigue syndrome patients to move on from their beliefs about their illness and accept the findings of thePACE trial. This is unreasonable in view of the failure of PACE to achieve evidence of recovery through cognitive behaviour therapy and graded exercise therapy in either self-reports or the objective measure of the 6-minute walking test.

Contrary to their suggestion, the Institute of Medicine describes chronic fatigue syndrome not as psychological but as a serious, chronic, systemic disease, with post-exertional malaise as its main feature which inhibits exercise.

Linking debate about PACE with intimidation of researchers is unjustifiable and damaging to patients.

 

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Impact of Rantes from jawbone on CFS

Impact of Rantes from jawbone on Chronic Fatigue Syndrome by  Johann Lechner, Katrin Huesker, Volker von Baehr in J Biol Regul Homeost Agents. 2017 Apr-Jun;31(2):321-327

 

This study elucidates the question of whether chronic inflammation in the jawbone contributes to the development of Chronic Fatigue Syndrome (CFS).

Fatty degenerative osteonecrosis in jawbone (FDOJ) may contribute to CFS by induction of inflammatory mediators. We examined seven cytokines by multiplex analysis in jawbone samples from two groups of patients. In order to clarify neurological interrelations, specimens from 21 CFS patients were analyzed from areas of previous surgery in the retromolar wisdom tooth area.

Each of the retromolar jawbone samples showed clinically fatty degenerated and osteonecrotic medullary changes. As control, healthy jawbone specimens from 19 healthy patients were analyzed. All fatty necrotic and osteolytic jawbone (FDOJ) samples showed high expression of RANTES and fibroblast growth factor (FGF)-2. FDOJ cohorts showed a 30-fold mean overexpression of RANTES and a 20-fold overexpressed level of FGF-2 when compared to healthy controls. As RANTES is discussed in the literature as a possible contributor to inflammatory diseases, we hypothesize that FDOJ in areas of improper and incomplete wound healing in the jawbone may hyperactivate signaling pathways.

Constituting a hidden source of “silent inflammation” FDOJ may represent a hitherto unknown cause for the development of CFS.

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Unperturbed Cytotoxic Lymphocyte Phenotype & Function in ME/CFS Patients

Research abstract:

Unperturbed Cytotoxic Lymphocyte Phenotype and Function in Myalgic Encephalomyelitis/ Chronic Fatigue Syndrome Patients, by Jakob Theorell, Indre Bileviciute-Ljungar, Bianca Tesi, Heinrich Schlums, Mette Sophie Johnsgaard, Babak Asadi-Azarbaijani, Elin Bolle Strand and Yenan T. Bryceson in Front. Immunol., 26 June 2017

Myalgic encephalomyelitis or chronic fatigue syndrome (ME/CFS) is a debilitating disorder linked to diverse intracellular infections as well as physiological stress. Cytotoxic lymphocytes combat intracellular infections. Their function is attenuated by stress.

Despite numerous studies, the role of cytotoxic lymphocytes in ME/CFS remains unclear. Prompted by advances in the understanding of defects in lymphocyte cytotoxicity, the discovery of adaptive natural killer (NK) cell subsets associated with certain viral infections, and compelling links between stress, adrenaline, and cytotoxic lymphocyte function, we reassessed the role of cytotoxic lymphocytes in ME/CFS.

Forty-eight patients from two independent cohorts fulfilling the Canada 2003 criteria for ME/CFS were evaluated with respect to cytotoxic lymphocyte phenotype and function.

Results were compared to values from matched healthy controls. Reproducible differences between patients and controls were not found in cytotoxic lymphocyte numbers, cytotoxic granule content, activation status, exocytotic capacity, target cell killing, or cytokine production.

One patient expressed low levels of perforin, explained by homozygosity for the PRF1 p.A91V variant. However, overall, this variant was present in a heterozygous state at the expected population frequency among ME/CFS patients. No single patient displayed any pathological patterns of cellular responses. Increased expansions of adaptive NK cells or deviant cytotoxic lymphocyte adrenaline-mediated inhibition were not observed.

In addition, supervised dimensionality reduction analyses of the full, multidimensional datasets did not reveal any reproducible patient/control discriminators. In summary, employing sensitive assays and analyses for quantification of cytotoxic lymphocyte differentiation and function, cytotoxicity lymphocyte aberrances were not found among ME/CFS patients. These assessments of cytotoxic lymphocytes therefore do not provide useful biomarkers for the diagnosis of ME/CFS.

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Development of a new activity measure: Activity perception in healthy population and in people with chronic illness

Research abstract:

Development of a new activity measure: Activity perception in healthy population and in people with chronic illness, by M Martin & I Alexeeva in European Psychiatry
Vol 41, Supplement, p S796 [30 June 2017]  Full article behind paywall

Introduction:
Self-reports provide rich information about the types of activities people engage in. Reviewing current activity measures two issues become  evident. Firstly, they were developed and validated in healthy populations. Secondly, they are diverse in their applications and measured domains. Thus, to assess the construct of activity fully large
numbers of measures need to be used.

Objectives:
The study aimed to explore different dimensions of activity (e.g. work, physical, mental, leisure, sedentary behaviours) using a new scale assessing multiple domains of daily activities.

Methods:
A new activity scale was used to investigate the types of activity and inactivity in people with chronic illness (asthma, chronic fatigue syndrome (CFS)) and in a healthy group. The types of activities measured included; leisure and sport, home and outside, social activity, work and education, and mental activity. The scale also aimed to measure the
construct of inactivity, represented by sedentary behaviours, such as staying in bed during the day.

Results:
The results showed a pattern of significant correlations between the new activity scale, specifically its two major domains of activity and inactivity, and other measures of functioning and activity in the illness groups, but not in the healthy group.

Conclusions:
The lack of significant associations between the new activity scale and other measures of activity and functioning within the healthy group indicated the measure may be more suitable for assessing activity in people with chronic illness than in healthy people. Additionally, the results underscore the importance of measuring inactivity as a separate
domain.

 

How can a self report scale be valid in ill people but not healthy people? Honest to goodness.

Objective measures need to correlate with self report. Not tricky to research…… Perhaps all this effort is pointing to the unreliability of self report measures of activity. Which relies on subjective recollection of memory……. That’ll be prone to bias.

Why no objective measures. Fitbits are cheap for heavens sake.

Waste of energy and research effort. Not great from any institution but Oxford. Wow ?

Joan x

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Practical management of CFS or ME in childhood

Article abstract:

Practical management of chronic fatigue syndrome or myalgic encephalomyelitis in childhood, by A Brigden, M Loades M, A Abbott, J Bond-Kendall, E Crawley in Archives of Disease in Childhood [Preprint June 28 2017] Full article behind paywall

Paediatric chronic fatigue syndrome or myalgic encephalomyelitis affects at least 1% of secondary school children in the UK and is very disabling. Treatment is effective but few children get a diagnosis or access treatment. This paper summarises what we currently know about diagnosing and treating this important illness in childhood.

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