Friday, January 16, 2015

When Bureaucrats Smile: The perpetuation of the status quo by HHS -Jerrold Spinhirne's commentary

The Bureaucrats of Medicine, by Jose Perez
Thomas Sowell has been quoted as saying, “You will never understand bureaucracies until you understand that for bureaucrats procedure is everything and outcomes are nothing.”  Nowhere is this more evident that in the P2P Workshop, where process replaced evidence at every turn,

Jerrold Spinhirne, with his usual thoroughness, has pointed out the weaknesses in HHS's manner of approaching "the ME/CFS question."

The deadline for submitting comments to the P2P about their Draft Report is today. These comments will not become part of the public record. Comments can be submitted via email to: prevention@mail.nih.gov. 

Please reference the corresponding line number of the report. 

If you submit a comment, please send a copy to Jenny Spotila for inclusion in her library of comments at jspotila AT yahoo DOT com. You can read public comments on her blog, Occupy CFS.

____________________

My Public Comment for the January 13, 2015 CFSAC Meeting

 
By Jerrold Spinhirne  January 4 2015


The utter folly of choosing inexperienced non-experts outside the field to write about a contested disease is shown in the opening statement of the 2014 Pathways to Prevention Workshop (P2P) on "Myalgic Encephalomyelitis/Chronic Fatigue Syndrome" Draft Executive Summary:

Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) is a chronic, complex,
multi-faceted condition characterized by extreme fatigue and other symptoms that are
not improved by rest. The etiology and pathogenesis remain unknown; there are no
laboratory diagnostic tests; and there are no known cures.

In the first place, it is entirely unclear what the P2P draft report is about.

It purports to be about a condition "characterized by extreme fatigue."However, the neurological disease myalgic encephalomyelitis (ME) is NOT characterized by extreme fatigue.

Unexplained fatigue is the characteristic feature of chronic fatigue syndrome (CFS), not myalgic encephalomyelitis (ME).

Classic descriptions of the neurological disease ME [Acheson, 1959; Ramsay, 1986] and the 2011 ME International Consensus Criteria [Carruthers, 2011] do NOT list fatigue as a diagnostic symptom of the disease – let alone as a characteristic feature of the disease.

Therefore, the P2P draft report cannot be about ME. However, the novice authors of the report seem to be unaware this fact and wish to include ME as a part of the undefined condition they are referring to as "ME/CFS" that is "characterized by extreme fatigue."

This in the complete 1986 definition of myalgic encephalomyelitis by Dr. A. Melvin Ramsay written after 30 years of carefully observing the disease in hundreds of patients:       


A syndrome initiated by a virus infection, commonly in the form of a respiratory or gastrointestinal illness with significant headache, malaise and dizziness sometimes accompanied by lymphadenopathy or rash.

Insidious or more dramatic onsets following neurological, cardiac or endocrine disability are
also recognised. Characteristic features include:

       (1) A multisystem disease, primarily
       neurological with variable involvement of liver,
       cardiac and skeletal muscle, lymphoid and
       endocrine organs.

       (2) Neurological disturbance – an unpredictable
       state of central nervous system exhaustion
       following mental or physical exertion which
       may be delayed and require several days for
       recovery; an unique neuro-endocrine profile
       which differs from depression in that the
       hypothalamic/ pituitary/adrenal response to
       stress is deficient; dysfunction of the
       autonomic and sensory nervous systems;
       cognitive problems.

       (3) Musculo-skeletal dysfunction in a
       proportion  of patients (related to sensory
       disturbance or to the late metabolic and auto
       immune effects of infection).

       (4) A characteristically chronic relapsing
       course.[Ramsay, 1986]   


Where's the "extreme fatigue" that the inexperienced P2P authors claim characterizes "ME/CFS"?

It should be clear that whatever "ME/CFS" is in the P2P draft report, it is not ME.

Consistent with Ramsay's classic definition of ME, the 26 highly qualified and experienced professionals who developed the 2011 International Consensus Criteria document, published in the Journal of Internal Medicine, also do NOT include fatigue in the name of the disease or as a criterion for making an ME diagnosis.

They state:       


Using ‘fatigue’ as a name of a disease gives it exclusive emphasis and has been the most confusing and misused criterion.

No other fatiguing disease has ‘chronic fatigue’ attached to its name – e.g. cancer/chronic fatigue, multiple sclerosis/chronic fatigue – except ME/CFS.
Fatigue in other conditions is usually proportional to effort or duration with a quick
recovery and will recur to the same extent with the same effort or duration that same or next day.


The pathological low threshold of fatigability of ME described in the following criteria often
occurs with minimal physical or mental exertion and with reduced ability to undertake the same activity within the same or several days.
 


The ICC document states: ME is characterized by an abnormal biological response to exertion or exercise that is objectively measurable by the 2-day cardiopulmonary exercise test (CPET). [Carruthers, 2011; VanNess, 2007]

According to the ICC:


"Pain and fatigue are crucial bioalarm signals that instruct patients to modify what they are doing in order to protect the body and prevent further damage."

The fatigue experienced by ME patients is the result of an underlying disease process and cannot be considered as medically unexplained any more than can be the fatigue experienced by cancer and MS patients.

Why then would the P2P draft report authors include the "ME" part of the term "ME/CFS" that is used apparently to refer to some condition other than ME?

The only reason can be because bureaucrats at the Department of Health and Human Services (HHS) told the compliant members of the "unbiased, independent" P2P panel to use the term "ME/CFS" throughout their report and never mind what it means.

The only published case definition using the term "ME/CFS" is the 2003 Canadian Consensus Criteria (CCC) document [Carruthers, 2003], but confusingly the P2P draft report uses "ME/CFS" in a broader sense to refer to some nebulous fatigue condition that is never delineated.

The hybrid term "ME/CFS" explicitly embodies what has been the major problem in the field ever since the CDC dispatched two inexperienced, unqualified investigators to the Lake Tahoe region of Nevada in the fall of 1985 in response to one of the many outbreaks of ME in the 20th century – the conflation of the neurological disease ME with a poorly described socially constructed syndrome based almost entirely on the undefinable, unmeasurable symptom of perceived fatigue.

For 26 years after the CDC mischaracterized ME as a fatigue syndrome in 1988, [Holmes, 1988] all patients with ME in the US have been misdiagnosed as part of the CDC's overly broad chronic fatigue syndrome collection of self-reported symptoms.


Simply tacking the term "ME" on to "CFS" using a slash does absolutely nothing to correct this problem.

In fact, using "ME/CFS" makes the problem much worse.

How can the neurological disease ME ever be separated from the fatigue condition CFS if the two disparate terms are combined in a single term?

Of course they can't be separated.


This is why HHS now favors the unclassifiable, undefined term "ME/CFS" and has instructed their "unbiased, independent" P2P panel to use "ME/CFS" exclusively in their report to refer to who knows what.

If any of the P2P draft report authors has ever attempted to diagnose a patient with "ME/CFS" and consulted the current US ICD-9-CM, used to code diagnoses for billing and reporting purposes, they would find that the hybrid term "ME/CFS" is not listed.

Only the diagnostic term "chronic fatigue syndrome" is listed as 780.71 under "Symptoms, Signs, And Ill-Defined Conditions."

"ME/CFS" also has never been listed in the World Health Organization's International Classification of Diseases (ICD).

ME, however, has been listed in the WHO ICD as a neurological disease since 1969.


Indeed, the hybrid "ME/CFS" diagnostic term can never be legitimately listed in the WHO ICD. It's an unclassifiable chimera that violates the WHO rule of only using mutually exclusive diagnostic terms that fall within a single category.

Nor will the hybrid term "ME/CFS" be listed in the upcoming US ICD-10-CM, official October 1, 2015.

Only the diagnostic terms "chronic fatigue syndrome" in the general symptoms section and "benign myalgic encephalomyelitis" in the neurological diseases section will be listed.


How then will a doctor code an "ME/CFS" diagnosis?

Because doctors in the US have only been informed about CFS, if informed at all, and know nothing of ME, "ME/CFS" will be coded as the ill-defined condition CFS and not as the neurological disease ME.

This fact renders HHS's current use of the term "ME/CFS" hypocritical and nonsensical.

How then is one to interpret such statements in the P2P draft report as:

"Patients experience stigma from the diagnosis of ME/CFS, including social isolation and judgment"?

How can patients experience stigma from a diagnosis of "ME/CFS" when CFS is the diagnostic term now used by doctors in the US? 


The draft report is retrospectively calling CFS "ME/CFS."

This muddled historical revisionism is the result of the "unbiased, independent" P2P panel allowing itself to be misguided by HHS bureaucrats.

Despite obviously not knowing what "ME/CFS" might be, the P2P draft report authors on page 3 make the breathtaking leap of faith to assure readers that "ME/CFS exists."

This is bit like declaring Bigfoot exists despite being unable to come up with a clear description of the creature.

However, the confusion of the authors is understandable because their newly acquired knowledge of "ME/CFS" is largely based on a recent Agency for Healthcare Research and Quality (AHRQ) Evidence Report No. 219:

"Diagnosis and Treatment of Myalgic Encephalomyelitis/Chronic Fatigue Syndrome" [Smith, 2014] also written by "unbiased, independent" neophytes in the field.

The Executive Summary of the AHRQ Final Evidence Report on page ES-1 makes the egregious misstatement that of the eight published case definitions considered:

"All include persistent fatigue not attributable to a known underlying medical condition, as well as additional clinical signs and symptoms."

Evidently, the "unbiased, independent" authors of the AHRQ report Executive Summary in their eagerness to make "ME/CFS" all about "persistent fatigue" failed to note that several pages later, the main report states:

"All but one of the definitions include persistent fatigue not attributable to a known underlying medical condition, as well as additional clinical signs and symptoms that do not all need to be present to establish the diagnosis." [Smith, 2014, page 2, italics added]

Table 2 on page 14 of the AHRQ Evidence Report clearly shows that the one exception that does not use the criterion of fatigue in its case definition is the "International ME Carruthers 2011" case definition in the fourth column from the left. [Carruthers, 2011]


This omission is vitally important because the neurological disease ME is not a fatigue syndrome, nor a part of any fatigue syndrome.

Nevertheless, HHS and their Centers for Disease Control (CDC) have failed to recognize the disease and to list ME as an exclusionary diagnosis for inclusion in the CDC's broad chronic fatigue syndrome umbrella diagnostic category.

It can be argued, supported by extensive research, that ME itself is a "known underlying medical condition" to which any fatigue reported by a patient can be attributed. Therefore, ME cannot be considered part of any condition characterized be unexplained fatigue – including ironically HHS's new undefined "ME/CFS" fatigue illness blend.

It has been the long-standing policy of HHS to support the misdiagnosis of ME patients with CFS – a policy that spares the private insurance industry the cost of appropriately medically testing for and treating ME

Keeping ME concealed within CFS, and now "ME/CFS," also spares the Department of Health and Human Services the expense of appropriately funding biomedical research on a major neurological disease..

Instead, HHS now gets away with only spending a pittance each year on often social science research of an elusive fatigue condition called CFS.

HHS wishes to avoid at all costs acknowledging their concealment of ME for decades within CFS.

Apparently the "unbiased, independent" P2P report authors are happy to oblige HHS by failing to read any further than the Executive Summary of the AHRQ report and using HHS's new undefined, catch-all term "ME/CFS" without question.

The P2P authors naively misrepresent ME in their draft report as a part of a dazzling "complex, multi-faceted condition characterized by extreme fatigue" completely oblivious to the history of ME in the medical literature and its current 2011 ICC case definition.

Anyone familiar with the field would have noticed the glaring error on page ES-1 of the AHRQ Evidence Review and pointed it out rather than repeating it.

If the P2P draft report authors had read the 2012 ME International Consensus Primer (IC Primer or ICP) [Carruthers. 2012], they would know better than to parrot the CDC's popular myth that "there are no laboratory diagnostic tests" for the disease.

The IC Primer already lists over 30 laboratory tests and imaging studies specifically useful in diagnosing ME, in addition to standard laboratory screening tests.


Despite the P2P draft report's familiar call that more research is needed, it is completely unclear just what it is that needs to be researched.

Research on any actual disease has been hampered for decades by use of the overly broad 1994 Fukuda CFS case definition. [Fukuda, 1994]

Fukuda CFS research results cannot be applied to any specific patient group or consistently replicated.

The P2P draft report completely fails to address the total lack of funding by the National Institutes of Health (NIH) for any research on the neurological disease ME with subjects selected using specific ME criteria.

As the IC Primer states:
"There is a current, urgent need for ME research using patients who actually have ME." This urgent need is completely ignored by the authors of the P2P draft report who were charged with identifying "research gaps and future research priorities."

The P2P draft report calls for the 1991 Oxford CFS definition to be "retired."

No mention is made, however, of retiring the CDC's 1994 CFS Fukuda definition which has also been impairing progress in the field for over 20 years.

Does "retiring" the Oxford definition mean the CDC will remove the 2011 PACE trial, which used the Oxford definition, as a reference in their CFS continuing medical education course?

The CDC has used the Oxford-based PACE trial to support their irresponsible recommendation of using exercise as "therapy" to treat CFS. 

In fact, "retiring" the Oxford definition means very little in actual practice because Oxford has never been used in NIH-funded CFS research..

Will the invalid UK PACE trial be retracted based on the P2P panel's recommendation?

It won't be.

No doubt, the CDC will continue to use Oxford-based research as a reference whenever it supports the CDC's agenda of recommending primarily behavioral treatments for their chronic fatigue syndrome.

Unbelievably, to remedy the current chaos caused the use of multiple case definitions, the P2P draft report authors want to "assemble a team of stakeholders (e.g., patients, clinicians, researchers, federal agencies) to reach consensus on the definition and parameters of ME/CFS."

Apparently, the draft report authors are unaware that a consensus of truly independent, expert professionals in the field was reached over 10 years ago in the 2003 Canadian Consensus Criteria (CCC) and updated in 2011 by the International Consensus Criteria (ICC).


The ICC has now been used to select subjects with ME for research studies indicating widespread neuroinflammation and immune system abnormalities are associated with the disease. [Nakatomi, 2014; Brenu, 2013]

However, when then HHS Secretary Kathleen Sebelius was offered the
opportunity in 2013 of adopting the compromise CCC case definition, as
recommended by 50 expert professionals in the field, she summarily rejected the proposal.


Instead, HHS is now pursuing a new unneeded redefinition of "ME/CFS" using a contracted Institute of Medicine panel composed mostly of the controllable "unbiased, independent" non-experts favored by HHS bureaucrats. 

Nevertheless, the unknowledgeable P2P panel is calling for yet another grand consensus by a "team of stakeholders" and a pie-in-the-sky "national and international research network."


It should be clear to anyone that the problem is bad faith at HHS – not the
lack of existing excellent consensus diagnostic and treatment guidelines
that can also be used for research.


The diagnostic and research criteria for other major diseases are developed by expert professionals in the field and their organizations, without inference from government bureaucrats and agencies.

The harm caused by governmental meddling with disease criteria is demonstrated by the unscientific 1994 Fukuda CFS criteria controlled and developed primarily by NIH and CDC bureaucrats with major input from UK psychiatrists.

These bureaucrats had personal and institutional agendas which they placed above the public interest. [Straus, undated] For two decades, the overly broad
Fukuda CFS criteria have confounded research and led to the medical neglect and mistreatment of patients.

ME expert Dr. Byron Hyde wisely observed in a paper presented in New South Wales in 1998:

Definitions are not diseases, they are often simply the best descriptions that physicians
and researchers can offer, with their always imperfect knowledge, to describe a disease.

Good definitions are good because they correspond closely to the disease state being
described.


It is thus important that those that attempt to define any disease or illness to have long term clinical experience with patients with this illness.

       There is simply no place for the bureaucrat in defining illness. .

All definition of epidemic or infectious illness must be based upon persistent clinical
examination of the afflicted patient, an understanding and exploration of the
environmental factors producing that illness,and pathophysiological examination of tissue
from those patients.

For similar reasons, I believe that the inclusion of psychiatrists in the defining of an 

epidemic and obviously disease of infectious origin simply muddies the water for any serious understanding of that disease. [Hyde, 1998. Emphasis added]

Yet the naive P2P panel is calling for still more governmental interference in medical science by wanting "federal agencies" to be included in choosing yet another set of criteria for a fatigue condition now called "ME/CFS."

When will professionals realize the harm caused by governmental interference with science and refuse to take part in such efforts?


Currently, the only two contemporary case definitions that reflect the physical reality of the disease were developed by professionals in the field with a minimum of governmental interference – the 2003 CCC and 2011 ICC.

The unknowledgeable P2P panel from outside the field seems to be unaware that most of the problems the panel has "discovered" have already been addressed by the 2011 ICC and 2012 IC Primer.

HHS can begin correcting these problems by recognizing ME as the distinct neurological disease that it is and removing ME from the broader inappropriate CFS category, as called for by the ICC.

HHS needs to assume an ancillary role and begin disseminating the IC Primer to doctors so they can make the differential diagnosis of ME, instead of continuing to place ME patients at risk by misdiagnosing them with CFS or some new "ME/CFS" pseudo-diagnosis.


The tools for educating medical professionals about ME already exists in the ICC and IC Primer.

The problem is HHS does not want to devote the necessary resources to educating doctors and healthcare professionals on how to recognize, diagnose, and properly treat ME.

HHS prefers, instead, to accept the increased disability in the US population and increased yearly cost to the economy caused by medically neglecting and mistreating ME.


The HHS leadership has chosen to support the bureaucrats at the CDC's inept CFS program, and their negligent CFS Toolkit collection of dangerous medical misinformation, over the public interest. [CDC, undated]

Why would HHS ever implement any of the grand proposals of the P2P draft report when HHS stubbornly refuses to take even the low-cost, simple step of removing the harmful, inaccurate CFS Toolkit from the CDC website and disseminating the urgently needed IC Primer to healthcare professionals?


Doctors now are unaware of the possible permanent harm to their ME patients posed by exercise and overexertion.

ME must be recognized and diagnosed early so the patient can be advised to take total rest to limit the risk of permanent severe disability caused by the disease.

Pioneer ME doctor A. Melvin Ramsay has noted:

The clinical picture of myalgic encephalomyelitis has much in common with that of multiple sclerosis but, unlike the latter, the disease is not progressive and the prognosis should therefore be relatively good.

However, this is largely dependent on the management of the patient in the early stages of the illness. Those who are given complete rest from the onset do well...
 [Emphasis added]

Doctors have been left totally uninformed about ME by the continued misconduct of HHS bureaucrats.

Instead of conducting seminars educating doctors about ME with information that is now readily available, HHS is squandering public money on the obfuscating P2P Workshop and its report which will soon be forgotten.

The leadership at HHS has chosen to place their highest priority on protecting the mistakes of their bureaucrats and the profits of the insurance industry, rather than protecting the public health.


The primary consideration of "unbiased, independent" P2P draft report is obviously pleasing the HHS bureaucrats who commissioned the report, rather than adding any clarity to the muddled mess created by those very bureaucrats.

Any useful suggestions made in the final P2P report will simply be ignored by HHS bureaucrats as they have done for decades.

The P2P draft report can hardly be expected to address the main problem currently forestalling any hope of progress in researching, diagnosing, and treating ME – the refusal of HHS to listen to the truly independent, knowledgeable medical and scientific professionals in the field.


Instead, HHS continues to enlist controllable non-experts to add more confusion and delay to the field. The P2P draft report itself is a prime example.

References:


Acheson, ED. The clinical syndrome variously called benign myalgic encephalomyelitis, Iceland disease and epidemic neuromyasthenia. Am J Med 1959; 26(4):569–595. (http://bit.ly/ZfQM6Z)

Brenu EW, Johnston S et al. Immune abnormalities in patients meeting new diagnostic criteria for chronic fatigue syndrome/myalgic encephalomyelitis. J Mol Biomark Diagn 2013; 4:152. 

Carruthers BM, Jain AK et al. Myalgic encephalomyelitis/chronic Fatigue Syndrome: Clinical Working Case Definition, Diagnostic and Treatment Protocols. Protocols. J of Chronic Fatigue Syndr 2003; 11:7-154.

Carruthers BM, van de Sande MI et al. Myalgic encephalomyelitis: International Consensus Criteria. J Intern Med 2011; 270:327–38.

Carruthers BM, van de Sande MI et al. Myalgic Encephalomyelitis – Adult & Paediatric: International Consensus Primer for Medical Practitioners. Published online October 2012. (http://bit.ly/1xrlLdw)

Centers for Disease Control and Prevention. Chronic Fatigue Syndrome: A Toolkit for Providers. Undated. Accessed December 14, 2014. (http://1.usa.gov/1GZ3khv)

Fukuda K, Straus SE, Hickie I et al. Chronic fatigue syndrome: a comprehensive approach to its definition and study. Ann Intern Med 1994; 12:953–9.

Holmes GP, Kaplan JE, Gantz NM et al. Chronic fatigue syndrome: a working case definition. Ann Intern Med. 1988; 108:387-389.

Hyde BM. Paper presented in New South Wales, February 1998. (http://bit.ly/14pwCtQ)

Nakatomi Y, Mizuno K et al. Neuroinflammation in patients with chronic fatigue syndrome/myalgic
encephalomyelitis: An 11C-(R)-PK11195 PET study. J Nucl Med 2014; 55:1–6.

Ramsay AM. Myalgic Encephalomyelitis and Postviral Fatigue States: The saga of Royal Free disease. 1st ed. London: Gower Medical Publishing; 1986.

Smith MEB et al. Diagnosis and Treatment of Myalgic Encephalomyelitis/Chronic Fatigue Syndrome. Evidence Report/Technology Assessment No. 219. (Prepared by the Pacific Northwest Evidence-based Practice Center under Contract No. 290-2012-00014-I.) AHRQ Publication No. 15-E001-EF. Rockville, MD: Agency for Healthcare Research and Quality; December 2014 (http://1.usa.gov/1ANVN2Y)

Straus, Stephen. Undated letter on NIH letterhead to Keiji Fukuda quoted and posted online by Craig
Maupin in The CFS Report,March 2014 post, CDC and NIH Officials Discussed "Desirable Outcome" of Seeing A Distinct Illness "Evaporate.” (http://bit.ly/OygptU)

VanNess JM, Snell CR, Stevens SR. Diminished cardiopulmonary capacity during post-exertional malaise. J Chronic Fatigue Syndr 2007; 14: 77-85.

Wednesday, January 14, 2015

The P2P Draft Report: Pros and Cons - and My Public Comment


The deadline for submitting comments to the P2P panel is January 16, 2015. Comments can be submitted via email to: 
prevention@mail.nih.gov. 

Please reference the corresponding line number of the report. The report can be found HERE.

While the panel must read all comments, they will not become part of the public record. In order to keep track of the comments that are submitted to the panel, please send your comments to Jenny Spotila at jspotila AT yahoo DOT com. You can read public comments on her blog, Occupy CFS.

Anyone who wishes to reprint this post in part or in full has my permission.

Summaries of the Dec 9 morning presentations, the Dec 9 afternoon presentations, and the Dec 10 presentations can be found on this blog, along with all relevant links.
__________________________________________

The P2P Workshop, held at the NIH Campus in Bethesda MD on December 9 and 10, 2014, was one of the most hotly contested government-sponsored conferences in ME/CFS history. It generated a firestorm of protest from advocates, who demanded that the P2P be canceled, via blog posts, tweets, and petitions. There was even a demonstration held on the NIH campus on the day of the meeting. The reason for the protest was that the P2P panel was, by design, composed of people with no expertise in ME/CFS, and who, therefore, would not be equipped to write an influential report – one that might affect NIH funding as well as the perceptions of the entire medical establishment toward ME/CFS for years to come.

In short, a lot was - and still is - at stake.

To a certain degree the predictions of the ME/CFS advocacy community were correct. The panel members, while experts in their own fields, were unable to make sense of the complexities surrounding the various diagnostic criteria in use since the 1980s. They were also unable to fully grasp the information-packed presentations given by Drs. Jason, Natelson, and Klimas, which would have helped them to distinguish between politically motivated criteria (Oxford and Fukuda) versus criteria devised by experts (CCC and ICC). In the end, they did what all committees do. They threw up their hands and attempted to incorporate everything, resulting in a document that contains conflicting ideas based, in large part, on a flawed AHRQ literature review. (The review managed to omit nearly all the relevant biomarker research, while including studies that were methodologically unsound (i.e. PACE).

In spite of the many drawbacks of the process (e.g. non-expert panel members, truncated presentations (20 minutes), a ridiculously small amount of time allotted for drafting the report (36 hours), and a set of key questions that were not, in many cases, actually addressed by the presenters) there were some aspects of the meeting that were useful. The restriction of 20 minutes for speaking time meant that speakers had to get to the point. (Although, some never did.) Researchers, who are especially prone to long-windedness, had to choose which of their findings to present. Among these were some valuable observations:
  • Dr. Natelson found objective test results distinguishing ME/CFS from FM and major depression.
  • Dr. Klimas found that the most common comorbidity in ME/CFS  is not depression (it’s FM).
  • Dr. Klimas found that two clinically identical illnesses, Gulf War Illness and ME/CFS, have opposite test results, one indicating that the illness is caused by toxic exposure (GWI) while the other implicates a viral etiology (ME/CFS).
  • Dr. Saligan, while not an expert in ME/CFS, has located 15 genes that can predict which cancer patients will experience post-radiation fatigue. What is significant is that these genes relate to mitochondrial dysfunction and T-cell activation, both of which are highly relevant to ME/CFS.
  • Dr. Nacul demonstrated using statistical analysis exactly how the Fukuda criteria failed to capture patients with ME/CFS. (There are 163 permutations of the symptoms.)
  • Dr. Snell proved with objective tests that people with ME/CFS don't have "fear of exercise."
The P2P panel failed to include the most relevant of these findings. However, they did manage to grasp some of the salient points brought up by the speakers, and by the members of the audience. These points are as follows:

Pros:
During Dr. Smith's presentation on exercise and CBT studies, she suggested that the Oxford case definition be retired. Although the Oxford case definition is not used in the US, this suggestion, (which was incorporated in the Draft Report), is the most significant development to have arisen from the P2P Workshop. By retiring a definition that captures people without ME/CFS (low specificity), the P2P has opened the door to retiring the Fukuda definition, which is also non-specific.
The speakers stressed repeatedly that ME/CFS is not psychogenic. This point was incorporated into the Draft Report, which stated unequivocally that ME/CFS is not psychological in etiology (line 92).
The Report stated that there is reproducible evidence of cognitive dysfunction, as well as immunological, inflammatory, and mitochondrial defects which are potentially important for defining and treating ME/CFS (line 82).
CBT and GET were determined to be "not primary treatment strategies" (line 115).
The Report stressed in several sections that innovative scientific research is urgently needed to identify risks and therapeutic targets (line 186).

Cons:
Although the topic was brought up by several speakers and audience members, the panel did not understand the drawbacks of the Fukuda definition, but instead drew upon it when it described ME/CFS as a condition “characterized by extreme fatigue not relieved by rest” (line 3). The point raised by researchers about the predominance of PEM was essentially ignored.
The panel did not understand that ME/CFS is not primarily a pain condition. One of their recommendations was that “drug therapies used for FM and other pain conditions should be examined for ME/CFS.” Many of these therapies consist of antidepressants, which are known to be either ineffective or harmful to patients with ME/CFS.
The Draft Report reflected the predominance of psychologists in the workshop in its suggestion that “exploring psychiatric comorbidities such as depression, anxiety and fear is critical to improve quality of life” (line 288). This is a backhanded way of undermining the statement that ME/CFS is not psychological in origin. (If the panel had fully understood the research presentations on the second day, they would have concluded that mitochondrial support and immune modulators are critical to improving QOL.)
The funding channels suggested by the panel do not include any that would facilitate the biomedical research goals outlined by the Draft Report, nor are they feasible (e.g. The National Institute on Minority Health and Health Disparities, and Medicare & Medicaid, both of which are under attack by the current Congress ) (line 325 and 378)
Finally, the Report touted CBT as a benefit (line 349).
Below is my comment to the P2P panel. It contains references to the points raised above as well as a few more. Please feel free to adapt as much as you wish from my comment for your own comments. It does no harm - and in fact does a great deal of good - to repeat important points.

____________________

Dear Panelists,

In keeping with the panel’s request that the public submit comments on the P2P Draft Report, I am respectfully submitting the following comments and corrections on the Report. Please note that I am using the line numbers from the P2P Draft document found at https://prevention.nih.gov/docs/programs/mecfs/ODP-MECFS-DraftReport.pdf

Correction: Line 50 - “163 symptoms have been associated with ME/CFS.” This is an incorrect paraphrase of Dr. Luis Nacul’s presentation on December 9th, in which he stated that using the Fukuda (1994 CDC definition), there were 163 permutations of symptoms. What Dr. Nacul meant was that there were 163 possible combinations of symptoms using the Fukuda criteria that could be used to diagnose ME/CFS. Dr. Nacul, and others, have pointed out that because there are so many possible permutations, and because PEM is not required to be present, the Fukuda criteria may capture people who do not have ME/CFS, but may have other fatiguing illnesses, including early MS and undiagnosed cancer. (Dr. Nacul also pointed out in his presentation that when PEM is required the number of permutations in the Fukuda definition drops to 35.) Dr. Smith also observed in her presentations that the Fukuda criteria capture less impaired people, possibly those with deconditioning and depression.

The Report should recommend that the Fukuda definition be retired, along with the Oxford definition, and replaced with the Canadian Consensus Criteria for ME, which is the definition used by the world’s leading ME/CFS clinicians and researchers.

Correction:  Line 113 – “Existing treatment studies (cognitive behavioral therapy [CBT] and graded exercise therapy [GET] demonstrate measurable improvement” and Line 348 -9 “The modest health benefit of CBT should be studied…” No studies demonstrating benefits from CBT or GET were included in the AHRQ review. As Dr. Smith pointed out in her presentation on December 10th, none of the studies on GET or CBT used patients fitting the criteria for ME. In addition, the forest plot shown in Dr. Smith’s presentation on December 10th indicates that the only studies to demonstrate benefits from CBT were Oxford-based studies, which were then averaged with the studies which showed little if any benefit in order to yield an overall positive result. In systematic reviews, averages are rarely used for such small numbers of studies, because, as is demonstrated by Dr. Smith’s forest plot, averages produce unreliable results.

The Report should amend this statement to specify that improvements were only found in patients diagnosed using the Oxford case definition for CFS in the UK. The report should also acknowledge in these two lines that the panel has recommended that the Oxford case definition be retired because it captures people who do not have ME or CFS.

Correction: Line 92 – “Although psychological repercussions (e.g. depression) often follow ME/CFS …” Dr. Natelson’s presentation on subtyping showed distinct objective markers between ME/CFS, major depressive disorder (MDD, and fibromyalgia (FM) indicating that there aren’t substantial overlaps with either condition. Dr. Klimas’s presentation on subtyping showed that in a group of 960 ME/CFS patients the most common comorbidity was FM, not depression. Her research shows that depression does not often follow ME/CFS. Psychometric testing shows that patients with ME/CFS score much better on role emotional that patients with depression. Dr. Jason has also observed a striking difference in patients with depression and patients with ME/CFS, which is that when asked what they would do if the illness were to disappear, patients with depression say “I don’t know,” whereas patients with ME/CFS will provide a list. There is, to date, no valid psychometric instrument that has shown that depression, MDD, or any other psychiatric conditions frequently occur either with or after ME/CFS.

The Report should delete the statement that depression often follows ME/CFS.

Correction: Line 95 “Focusing on fatigue alone may identify many ME/CFS cases.” This statement is incorrect. Focusing on fatigue alone may identify many chronic fatigue patients, including people with leukemia, MS (1/3 of patients with early MS present with fatigue as a primary symptom and are misdiagnosed with CFS), incipient cancers, Hashimoto’s disease, Ehlers-Danlos, and a multitude of other illnesses. Focusing on fatigue alone not only has led to the misdiagnosis of significant numbers of patients with other treatable conditions, it does not identify many ME/CFS cases. The symptom that identifies ME/CFS patients is post-exertional malaise, also known as post-exertional collapse. As Dr. Jason and Dr. Nacul pointed out, this is the hallmark symptom of ME/CFS.

The report should revise this statement to “Focusing on PEM may identify many ME/CFS cases.”

Correction: Line 32 “ME/CFS exists.”This statement is only partially correct. Myalgic encephalomyelitis is a neurological disease that was described by Dr. Melvin Ramsay in the 1950s. It has occurred in many outbreaks and clusters since the 1950s. ME has two case definitions, both of which require PEM, and both of which accurately describe the patient population. Chronic Fatigue Syndrome does not exist as a medical entity. There is no case definition for CFS that describes a group of patients distinct from any other group of patients with fatigue.

The Report should delete the sentence “ME/CFS exists.” The Report should recommend that the term “CFS” be dropped, as it does not describe a distinct clinical entity, and replaced by Myalgic Encephalomyelitis, with its corresponding case definition (the CCC).

Thank you for considering my comments and corrections. I hope that the final version of the Draft Report will help researchers obtain badly needed NIH funding for continuing and expanding research into the causes, mechanisms, and treatments for patients with ME/CFS.

Yours,
Erica Verrillo, Author

NIH Pathways to Prevention: Advancing the Research on ME/CFS: Summaries of Day 2

The second (and last) day of the P2P workshop revolved around how to identify subtypes. Some of these presentations (Natelson, Klimas, Hornig, Saligan) included interesting research, and are well worth watching. (Time stamps are included in the summaries.)

Dr. Natelson, in a well-organized presentation, outlined his group's research comparing ME/CFS patients with and without FM, and MCS. They found significant measurable differences between ME/CFS. FM and also between patients with multiple comorbidities, Dr. Natelson's group also found upregulation of serotonergic systems in ME/CFS patients (as opposed to major depression and FM), which may account for why antidepressants are not effective in the ME/CFS patient group.

Dr. Klimas's group compared ME/CFS with Gulf War Illness and found that although these two illnesses have identical clinical presentations, their test results are very different. Patients with ME/CFS have "turned-off" genomic pathways (metabolism is depressed after exercise), while patients with GWI have "turned-on" genomic pathways. Klimas' group also found that psychiatric comorbidities are not the most common cormorbidities found in ME/CFS patients, and that the cancer rate, at 8%, is twice the national average.

During the question and answer session, Dr. Jason questioned the validity of using the PACE trials in the literature search because of methodological problems. While Dr. Smith acknowledged that there were significant methodological problems, she defended not only the inclusion, but the weighting given to PACE. Mary Dimmock challenged the inclusion of the vague Fukuda definition, citing Dr. Nacul's presentation, in which 163 permutations of the illness could result from using Fukuda,

Related posts:

NIH Pathways to Prevention: Advancing the Research on ME/CFS: Day 1: Morning Session Summaries




US Disabled Hold Protests at Bethesda

___________________________________________________



Originally published on ProHealth.

By Erica Verrillo

On December 9 and 10, 2014, the Pathways to Prevention (P2P) workshop was held on the NIH campus, in Bethesda, Maryland. The workshop was sponsored by the Office of Research on Women’s Health (ORWH), which is the division of the NIH responsible for ME/CFS. The purpose of the workshop was to identify gaps in ME/CFS research, and to address key questions about incidence, prevalence, diagnosis and subtyping.

The sessions on December 10 primarily focused on subtyping patients with ME/CFS. The presentations included research that has been conducted by Dr. Natelson on objective markers for identifying subgroups, on genetic markers of fatigue in cancer patients (Saligan), as well as Mady Hornig’s work on how immune markers interact with the microbiome and the brain. Dr. Klimas also presented her work on subgroups as well as a comparison between ME/CFS and Gulf War Illness in which two groups of patients presenting with identical symptoms showed very different test results.

The draft report of the meeting is available HERE. Members of the public can make comments, which will then be incorporated into the report, until January 16, 2015.

You can read the program book HERE.

You can read the meeting agenda HERE.

You can watch the December 9 presentations HERE.

You can watch the December 10 presentations HERE.

You can read information about panel members HERE.

You can submit comments HERE.

You can read a summary of the December 9 (Day 1) morning presentations HERE.

You can read a summary of the December 9 (Day 1) afternoon presentations HERE
.


Session 4: What tools, measures, and approaches help define individuals with ME/CFS? 

Heidi D. Nelson, M.D., M.P.H. - Evidence-based Practice
Center III: Treatment: Medications and
Complementary and Alternative Medicine

(15 minutes) (begins at 2:54)
Medical Director of Cancer Prevention and Screening, Providence Cancer Center, Providence Health and Service; Vice-Chair and Research Professor, Departments of Medical Informatics and Clinical Epidemiology, Pacific Northwest Evidence-based Practice Center, Oregon Health & Science University

Dr. Nelson described the results of the systemic review as regards complementary and alternative medicine. Nine trials met criteria for inclusion in the review, eight of which were fair quality and one of which was poor. All trials addressed the underlying pathology of ME/CFS, and all were small trials conducted in the U.S. and Western Europe. As with other trials, participants were mostly white, mostly female, and ranged in age from 35 to 50 years. Eight of the nine trials used the Fukuda definition.

Discussing the results of two Ampligen trials, Dr. Nelson pointed out that there were statistically significant results, with between 10% and 35% improvement along the parameters of exercise capacity and tolerance, as well as a decreased use of other medications. Trials of isoprinosine, galantamine, fluoxetine, acyclovir, and corticosteroids showed no significant differences. Two trials of rituximab showed significant improvements in physical function.

In the area of complementary medicine, only two trials met the criteria for good quality methods. Four were fair, and one was poor. Five trials used the CDC criteria and one used the Oxford definition. Interventions included homeopathy, acetyl-L-carnitine, pollen, acclydine, melatonin, phototherapy, distant healing (e.g. prayer, visualization), and low sugar/low yeast diet. There were no differences in any of these groups between placebo and intervention.

Drawbacks of these studies were that they were mostly small, various case definitions were used, outcomes measures used dissimilar instruments, harms were not reported, and studies did not report characteristics of responders vs non-responders. There were also limitations of clinical relevance. For example, few medications were tested more than once, and most trials used the Fukuda case definition, which may have selected patients with less impairment, as well as the Oxford case definition which may have selected for patients with chronic fatigue, rather than patients with ME/CFS.

The only treatments that achieved significant clinical improvements were rintatolimod (Ampligen)(immune modulator), rituximab (monoclonal antibody), and valganciclovir (anti-viral agent).

____________________

Beth Smith, D.O. - Evidence-based Practice Center IV: Treatment: Counseling Therapies and
Exercise

(25 minutes) (begins at 17:22)
Associate Professor, Department of Medical Informatics and Clinical Epidemiology, Pacific Northwest Evidence-based Practice Center, Oregon Health & Science University

Dr. Smith's talk focused on counseling and behavior therapies, as well as exercise. There were 14 trials included in the review, five of which were good quality, six were fair, and three poor. Seven trials used the Fukuda criteria, four used Oxford, and one used both the Fukuda and Oxford definitions. None used the case definition for ME.

On the forest chart, Dr. Smith explained that clinical significance is at 8. (Only four achieved clinical significance.) “Clinical trials favored CBT” she stated. [Editor's comment: On the chart, only two of the five achieved clinical significance (Deale 1997 and 2001)].

There were six trials of exercise therapies. Half used the Fukuda criteria and half used Oxford. All of these favored exercise. Harms were poorly documented. In one trial, 47% of patients refused to repeat the CPET. More adverse events were reported compared with usual care or pacing. In addition, there were four head-to-head trials of exercise and/or counseling, Two used the Oxford case definition and one used the Fukuda definition.

Withdrawal rates for the studies were high. Total withdrawal was reported in two studies, and two out of four reported deterioration due to CBT. Neither CBT and GET were associated with serious harms, however more adverse events were reported in exercise studies, and drop-out rates were higher.

Who are responders and non-responders? Responders were younger and less impaired at baseline, and stayed within their energy envelope.

Some of the limitations of the research included exposure bias (self-reported responses may have been influenced simply by receiving more attention), expectation bias may also affect outcome (questionnaires may yield positive responses because participants are told that they will improve), thresholds for significant improvement varied across studies, trials did not measure level  of activity, harms were inadequately reported, outcomes were not analyzed for subgroup comparisons, types of therapies differed across trials, and there was inconclusive information about responders vs non-responders. As with other studies, the Fukuda definition may have selected for patients with less impairment, the Oxford may have selected for patients without CFS, and no studies used criteria for ME that required PEM (the CCC and the ICC).

Future research needs include:
  • Reduce patient variability across studies by using consistent case definitions
  • Consider reporting on one or several agreed upon case definitions and retiring the Oxford case definition
  • Evaluate diagnostic testing across diverse groups
  • Report established measures of diagnostic accuracy as outcomes
  • Consider clinical subgroups of ME/CFS in reporting results of diagnostic tests
  • Evaluate the role of intermediate outcomes, such as biomarkers and CPET testing to identify subgroups 
Future needs of treatment trials:
  • Enroll larger numbers of patients in trials
  • Improve design and execution of trials
  • Include longer follow-up
  • Report concurrent treatments and timing of treatment in relation to diagnosis
  • Report participants' adherence with the treatments
  • Develop innovative ways to include more severely affected patients
  • Use consistent patient-centered outcomes across trials such as quality of life, fatigue, employment, improvement and recovery
  • Evaluate findings by patient characteristics, such as baseline severity, comorbidities, demographics, and symptom predominance (e.g. PEM, neurocognitive status, and autonomic function)
  • Determine the relationship between intermediate outcomes such as biomarkers, to patient outcomes
  • Determine differences in intermediate outcomes between patients with ME/CFS compared to patients with overlapping conditions
  • Review research available in the pediatric population, as well as among men and minorities
  • Determine the effects of ME/CFS across the lifespan and how treatment effectiveness and harm varies by age
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Benjamin H. Natelson, M.D. - Reducing Patient Heterogeneity by Subgrouping

(20 minutes) (begins at 43:00)
Director, Pain and Fatigue Study Center, Mount Sinai Beth Israel; Professor of Neurology, Icahn School of Medicine at Mount Sinai

We would expect that any clearly defined set of criteria will reduce patient heterogeneity, but that any clinical syndrome will have multiple causes. ME/CFS is the tip of the iceberg. If we talk about idiopathic chronic fatigue, this is severe fatigue without other symptoms. Most pain syndromes are associated with fatigue. Severe fatigue is also associated with medical illnesses, such as COPD and heart failure, as well as post-infectious sequelae, breast cancer survivors, and neurologic diseases such as Parkinson's, MS and stroke. Without the existence of a test we have to use stratification strategies to reduce patient heterogeneity.

Because this was a short talk, Dr. Natelson limited himself to presenting data from patients with and without FM, with no psychiatric diagnoses, and with low NK function.

When comparing patients with major depressive disorder (MDD) to those without MDD, Natelson's group found differences across a number of brain studies, suggesting that patients with ME/CFS have some ongoing encephalopathy. Dr. Natelson is currently conducting a study which should confirm (or not) the hypothesis that this group of patients has an ongoing encephalopathic process producing the illness.

Those patients with low NK function have less vigor, more fatigue, poor mental processing, and poorer daytime functioning.

Dr. Natelson asked the question, “Is CFS the same as fibromyalgia?” Similarities do exist. There is a 37% comorbidity between CFS and FM. But importantly, if the ailments are the same, there should be no physiological differences. However, there are a number of studies that show substance P to be elevated in FM but not in CFS. CFS is common in people with sleep apnea but not in patients with FM. Patients with CFS do not respond to antidepressants, but FM pain does.

When comparing patients with ME/CFS to those with FM alone, patients with ME/CFS alone score worse on cognitive tests, and when they have comorbid FM, they score worse on every other test. Sleep studies also show marked differences. CFS patients show a remarkable increase in REM to wake transitions. [They wake up after dreaming.] This is very different from the mixed group, which shows sleep disruption. Something is forcing them to go from deep sleep to lighter sleep.

In terms of central serotonergic systems, FM, like MDD has a down-regulated central serotonergic system, while CFS has an upregulated serotonergic system.

In terms of fitness and conditioning, when patients with ME/CFS and with comorbid FM were matched with deconditioned controls, they found no differences in any variables using VO2max. Natelson's group then did a sub-maximal test and found there was a major increase in stroke volume (blood pumped out of the heart) in the CFS plus FM groups as compared to either CFS only patients and deconditioned controls. In short, the CFS plus FM group has a significant increase in cardiac work despite the same workload.

If you add multiple chemical sensitivity (MCS) to patients with CFS alone and to those with CFS plus FM, other syndromes, such as IBS increase markedly. The majority of CFS patients alone have no comorbid psychiatric diagnoses. But when all three (CFS+FM+MCS) are present, 42% of patients have more than one psychiatric diagnosis.

There are several possible conclusions that may be drawn from the data. One is that pure ME/CFS may be a different illness from ME/CFS with comorbidities. But looked at another way, patients with several comorbidities may have a high likelihood of having others well. The high burden of illness may lead to increased psychiatric diagnoses.

The future is in biomarker research. Natelson's group has looked at spinal fluid for proteomic [protein] analysis. The patients with CFS had 738 unique proteins relative to post-Lyme patients. Dr. Natelson concluded with a call for volunteers for his study.
 ____________________

Elizabeth R. Unger, Ph.D., M.D. - Measures: Patient-Reported and Physiologic
(20 minutes) (begins at 1:04:05)
Chief, Chronic Viral Diseases Branch, Division of High-Consequence Pathogens and Pathology, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention

Dr. Unger promoted the idea that using common measurements would facilitate research on identifying the natural history of the illness, as well as identifying the efficacy of treatments, and patient populations. Some of the challenges in measuring ME/CFS are the complexities of the illness, comorbidities, and individual patient variables such as type of onset, age, race and medications. Patient-reported outcome measures (PROM) are simple to use, are inexpensive, and can be used to measure change over time.  There is also extensive literature on PROMs, because they have been widely used, particularly those that measure pain, fatigue and function.

Even though there are many case definitions, there are symptoms common to other illnesses, such sleep disturbance, pain, malaise, fatigue, and cognition, but post-exertional malaise may be unique to ME/CFS.

PROMIS is an NIH-sponsored initiative to create instruments for broad application across many chronic diseases and conditions. Their goal is to provide comparisons across conditions. Few of these instruments have been rigorously evaluated in the ME/CFS population, which means these instruments may not capture the all the aspects of ME/CFS. There are also limitations to using PROMs.

PROMs rely on self-reporting, and therefore are not objective. It is also difficult to establish what constitutes a clinically significant difference. Self-reporting does not take into account other factors that may affect a single domain (mood may affect function, etc.). Important aspects of physiologic abnormalities are not specifically represented in symptoms. Standardization of physiologic measures is needed as well.

What is needed?
  • Validation of self-reported measures in multiple well-designed studies
  • Improved PROMs for ME/CFS to better capture the patient experience
  • Standardized physiologic measures
  • Validation of physiologic measures and correlation with disease type and severity
Identification of subgroupsThere is some ongoing work in this area. NIH and FDA have a work group on ME/CFS PROM. This is a direct outcome of the FDA Drug Development meeting. There are a couple of multi-site and biobank initiatives which will help generate a critical mass of data. Unger went on to describe the CDC multi-site study, and to share some preliminary results.

Dr. Unger concluded that there is a real need for measures. “Measure is the start of everything... We need measures because case definition alone is going to be insufficient.”
____________________

Leorey N. Saligan, Ph.D., R.N., CRNP, FAAN  - Innovative Approaches in Fatigue Research: 
Phenotyping, Biomarker Discovery, and Statistics
(18 minutes) (begins at 1:26:25)
Investigator, Symptom Management Branch, National Institute of Nursing Research, National Institutes of Health

Dr. Saligan's research area is the investigation of fatigue. His initial focus was on fatigue in sarcoidosis patients. Later he began looking at fatigue in prostate cancer patients who were receiving radiation therapy. He noticed a significant increase in fatigue midway through treatment, which is around day 18 to day 21 of the patients' entire course of treatment. The fatigue persisted to the ends of treatment (day 38-42).  But 40% of patients did not develop fatigue. After doing gene expression microarray, they found that there was a differential expression of genes, in particular mitochondrial-related genes and T-cell-related genes were down regulated in the fatigued patients. Upon further analysis, most of the genes were found in cancer, neurological diseases and psychological disorders.  They also found differences in proteomics, specifically apoliprotein A1 and E were related to high fatigue.

What was fascinating about Saligan's research is that his group was later able to predict which patients would develop fatigue using 14 genes. (High fatigue patients had lower expression of the genes than low fatigue patients.) Although Dr. Saligan did not relate his research directly to ME/CFS the implications are that using proteomics and gene expression, it may be possible to predict who will develop ME/CFS after viral infections. (This relates to Dr. Jason's study of university students who contract mono.)

____________________

Mady Hornig, M.D., M.A. - The Role of the Immune System in ME/CFS
(20 minutes) (begins at 1:46:06)
Director of Translational Research, Center for Infection and Immunity; Associate Professor of Epidemiology, Columbia University Mailman School of Public Health

Dr. Hornig's group is interested in examining the microbiome, and, in particular, looking at the metabolites that may be neuroactive, and play an important role in the development of chronic fatigue syndrome. We have an enormous number of neuropsychiatric disorders that are considered to be due to an interaction between the brain and the immune system, ranging from autism, depression and schizophrenia, as well as ME/CFS.  [Editor's comment: Dr. Hornig has placed ME/CFS on the same spectrum as several neuropsychiatric disorders. However, none of these neuropsychiatric disorders occur in epidemic form.] There are a wide range of infectious factors that we have thought of as triggers for this process, not only gut microbes, but also herpesviruses, and a wide range of other viruses.

Microbes are important for normal brain function. Germ-free mice have abnormal cognition. The brain-gut axis can create a variety of effects in the body. Dietary products interact with gut bacteria to produce tryptophan, which is the building block for serotonin, which is, in turn, important in key functions, including sleep, sex drive, and mood. Tryptophan can also be broken down by immune factors like interferon gamma, and TNF alpha, as well as by glucocorticoids. This means that tryptophan can be degraded by the immune system, and also by the stress response (HPA axis). That degradation takes tryptophan down a pathway that can be neurotoxic, one that regulates mood, thought processes, as well as memory. We believe that the degradation of tryptophan may play an active role in the biochemical changes that we see in ME/CFS.

The lining of our intestines is flooded with bacteria that condition our immune system. Segmented filamentous bacteria (SFB), for example, are pro-inflammatory. They increase Th17 cells that are involved in autoimmune and inflammatory disorders like RA, and are implicated in pain syndromes such as FM. The absence of this type of bacteria allows the increase of the type of cells that quiet down the inflammatory process, the T-regulatory cells.

Autoimmunity is also regulated by gut microbes, and is altered by association with genetic factors. Microbes may also create autoantibodies that mimic brain proteins. There are a number of studies that suggest that an autoimmune process may be present in a subset of ME/CFS. Certain microbes are butyrate producers, and when these are reduced you see the development of classical autoimmune disorders like type 1 diabetes. Probiotics can influence this scenario. In animal models, lactobacillus johnsonii will increase tryptophan, and one can also see this in human studies where brain dysfunction in certain conditions can be prevented by using comensal bacteria.

Hornig's group is working on several studies involving pathogenic agents (e.g. viruses and mycoplasma). There is very little to suggest a specific pathogen in CFS, although some viruses are found in lower numbers among patients than controls. Hornig suggested that perhaps certain viruses are important in calming the immune response, and that patients with ME/CFS may be deficient in them.

What Hornig's group has found is that early (three years or less) cases of CFS have more pro-inflammatory cytokines than long-term patients. The immune system is highly activated in early stages, whereas in longer cases immune exhaustion may set in. Treatment considerations for the short-term group may involve antibodies to IL 17, which are currently being used for RA. Also in early stage ME/CFS allergy-related cytokines, and Th2 cytokines are up-regulated.  So, there is a profound upregulation of anti-inflammatory cytokines as well. There is a 104-fold increase in interferon gamma, which is a very important cytokine in viral immunity, in short-term CFS. Plasma serotonin is also undetectable in short-term patients, suggesting that there is tryptophan degradation.

[Hornig was cut off before she could explain the remainder of her slides.]

 
Discussion Period (begins 2:08:20)

Q: Dr. Elk, panelist: This question is for Dr. Smith and Dr. Nelson. In your analysis, were Dr. Natelson's and Dr. Buchwald's studies included?

A: Dr. Nelson: Dr. Natelson's were not. Dr. Buchwald's, I'd have to look that up. I will put out there that if there are studies we have missed that are not on our exclusion list, we would love to look at them.

Q: Kathleen M. O’Neil, panelist:  In response to the same two literature reviewers, with response to a question from yesterday about pediatrics being excluded, is this because you found very little or because it was just the charge?

A: Dr. Smith: It was just the charge. We didn't look at pediatric literature at all.

Q: Dr. Rasmussen, panelist: Dr. Saligan, in your signature of the genes of the patients that would go on to develop fatigue, did you test that signature in other indications of fatigue as a potential diagnostic marker?

A: Dr. Saligan: That is the next phase of our investigation.

Q: Dr. Green: There are a number of studies that are ongoing. Do we have any of the preliminary results of studies that have been accepted or are under peer review?

A: Dr. Unger: We are preparing a manuscript for the IOM, but it's not under review yet.

Q: Dr. Green: There are a number of measures that were talked about, and so, the reliability and validity of those measures in an ethnically diverse population, has that work been done?

A: Dr. Unger: That is a critical area. Our studies are relying on tertiary care, so it is a largely white population.

A: Dr. Natelson: I just wanted to mention that one of the groups in the CDC cooperative study we are trying to reach are the housebound bedridden patients. If you in the audience know of anyone we want to find these patients, and we want to include them by going to their bedside.

Q: Dr. Green: Have we reached out to rural Americans?

A: Dr. Unger: There's been very little done, but our study in Georgia did identify an increased risk in the rural population. That's another critical need. Patients don't have access to care anywhere, let alone in rural areas.

Q: Dr. Green: In regards to that, so we're seeing increased morbidity, are we seeing increased mortality? I'm thinking about the study about older women having decreased longevity.

A: Dr. Unger: We don't have any data on that.

A: Dr. Hornig: I'm thinking of the Medicare study in which there was an increase in lymphoma in individuals over 65, that was in men. There was an 85% risk of lymphoma in individuals with a history of chronic fatigue syndrome. Alterations in the immune system over a 10-year or longer period is an important consideration.

Q: Dr. Green: Does anyone know of any data that would suggest that there is an increase in mortality?

A: Dr. Unger: No -

A: Dr. Natelson: Yes -

Dr. Unger: But there is, umm...evidence of metabolic syndrome being increased in these patients. So, they have a burden of cumulative chronic illness.

A: Dr. Hornig: There is that one cancer study, and we certainly need more in that area.

Q: Penney Cowan, panelist: Dr. Smith, how long was the time between the original test and the retest (referring to the CPET used in the exercise test)?

A: Dr. Smith: I'd have to go back to the specific trial. It was longer than three months.

Q: Dr. Jason (2:17:17): In patient polls, the CBT studies have been somewhat varied in results from some of results of the more empiric trials. Patients feel that these interventions are not helpful. In addition, the cure rate is often talked about in some of those CBT trials, do you think people are actually cured of this illness? And finally, the methodological issues of some of these trials, for example the PACE trial, of having differential standards coming into the trial, versus recovery, and how those standards have changed. Are those methodological issues considered in the types of reviews that you've done? And, real quickly for Beth Unger, could you just mention some of the case definitions in the seven centers you are using to bring patients in, and whether you are still using the operationalization of Reeves in some of the work at the CDC in this trial and possibly others?

A: Dr. Smith: As to why benefit is noted when we looked at the trials but patients don't sense that, there are multiple trials with different results. In the combination of those trials, we did see improvement. Why patients don't report this is that many of these different approaches are geared at helping an individual cope and manage and tolerate a chronic disease. Across the spectrum of chronic diseases different forms of therapy show improvement. That is a very different thing from cure. I did not include the evidence on recovery. The reason is that it was poorly evaluated. When it was, the outcomes were inconsistent and were flawed as far as measuring recovery, One large trial [PACE] had an inclusion of an SF-36 of 60. They then changed that criteria to less than 65 to improve recruitment. But when they looked at measures of recovery they used an SF-36 of 60 as one of the measures of recovery. So there is a contradiction on measures of cure or recovery. There are also Chalder fatigue scores of less than 4 as normal, and in another trial they looked at Chalder fatigue scores of 18. You could get to a score of 18, but does that really reflect recovery? In looking at the evidence, recovery was not well measured as an outcome. I would encourage researchers to set some standards for recovery. As far as methodological issues, we scrutinize the quality based on methodology. We used strict appraisal techniques.

Dr. Natelson (2:24): May I just put in a thought. The meta-analysis takes all the studies and looks at them equally but when I looked at those data I saw them as dichotomous. I saw the UK studies, two UK studies producing a very overwhelming positive response, but the US-based studies didn't. So there seems to be a difference between the United States and the UK and I've asked Drs. Friedberg and Jason about this, and we really don't understand, but I think that that's another way to look at it. Are they successful or not, and then try to come up with reasons.

Dr. Unger:  What case definitions were the clinicians using? They are using both the Fukuda and the CCC. I think in their own work, they don't always separate out perfectly. Clinical work is guided by what the patients are once you've got them in the door and [physicians] are evaluating them. The instruments we used were operationalized from the Empiric case definition. So, we are still looking for the best way to operationalize.

Dr. Green: This brings up an important question. The Oxford definition, does anyone disagree that the Oxford definition needs to be retired? [No response. Laughter]

Q: May Ann Fletcher, NOVA: There was a paucity of men in clinical trials, this would happen naturally because the majority of patients are women. But we have found there are important differences between men and women. We're looking for 50 men with ME/CFS who will participate in our study. Please contact me at mfletcher@nova.edu

Dr. Green: So, is there a question here?

Q: Joe Landson: I am interested in the role of mitochondria and the role of immunity. Since there is a little literature showing higher rates of cancer in ME/CFS, it seems there is a need for studies.

A: Dr. Hornig: That makes a lot of sense, there is likely to be a dysfunction in mitochondrial function in autoimmunity. There can be various antigens that are presented to the immune system in the context of oxidative stress than can lead to a Th2 autoimmune response. Perhaps we can look at certain markers related to dysregulation of the cell cycle as well as cancer markers in an in vitrosetting, and then apply that to a community setting.

Dr. Saligan: My lab scientists are looking at that pathway. Our initial data have found that there is a big link between mitochondria and inflammatory immune response. That might be related to the ability of the body to go back to homeostasis after stress.

Q: Dr. Fred Freidberg (2:33:22): I'd like to think we have much to learn from fatigue in different disorders. This is the essence of collaboration, that we talk to people who are also studying severe, disabling fatigue in other diseases.

Q: Robert Miller, patient: Yesterday I asked the panel to prioritize immune and autoimmune research in their recommendations. I'd like to ask you how important you think immunological research is in finding causation and treatments for this illness.

A: Dr. Hornig: I think that it is likely to be a very essential aspect. We are looking at the disrupted host-immune response. The disruption has many biochemical mediators but the immune system is a key factor that is relating to microbial triggers as well as “stressors” of other sorts, psychosocial stressors. Cytokines increase to as large a degree when you are preparing for an exam as they do when you have just had an influenza vaccine. In terms of the microbiome, I don't think it's a panacea, take a probiotic or a fecal transplant and you are cured, but we have not been able to broach the tip of what that will be able to show us. Perhaps different phenotypes will map to different immune signatures.

Q: Dr. Green: There was some discussion yesterday about the MAPP network and as to what type of research we should be thinking about. In a world of finite resources, where would be the best investment if we are to think about this from a scientific standpoint?

A: Dr. Unger: I think the MAPP framework is really worth considering. It brings investigators together, and it allows for standardization and it allows for rapidly testing hypotheses in a broad population.

Dr; Natelson: I sort of agree with what Dr. Clauw said yesterday. While the R021 mechanism is fabulous it only allows very focused, specific questions. With networks like the one we had with NIAID for a dozen years, you have multiple sites, with a number of disciplines, to answer more complex questions. In what I understand of the MAPP network, ideas are multiplied across sites, which allows for a more complex approach. But then the issue is, what are the core studies?

Dr. Saligan: Standardization of phenotypes and case definitions would be ideal, especially from those who are working on biomarker discovery.

Q: Dr. Green: What type of studies would be critical?

A: Dr. Hornig: I think that the approach that helps us integrate across a range of ways to examine an individual – the biochemical, the metabolomic, the immune, the infectious and oxidative stress at the same time, particularly in a larger scale. Exercise studies, and imaging studies will help us. Although we call this chronic fatigue syndrome, we need to look at those early events. We need to get samples early on.

Dr. Unger: We need clinical best practices. We need standardized approaches to patients. So much of the damage occurs in the primary care setting. We need measures and standardization. That could come about with a fatigue research network

Dr. Natelson: We need to expand our patient pool. Right now we have to exclude patients. We need to identify phenotypes, again, focusing on the brain. I'd like to see brain studies that focus on neuro-inflammation. We need more patients in order to sort out the differences in biomarkers.

Q: Dr. Nacul (2:50): Question to Dr. Smith. Your evidence review shows quite a marked effect for psychological and behavioral therapies for ME/CFS. I think there is quite a bit of evidence that CBT is effective in other chronic diseases such as diabetes and cancer but only as an adjunct therapy and only as long as patients take specific medications for their conditions. So my question is whether you have any sense of how the results of CBT in ME/CFS compare with CBT in other chronic diseases.

A: Dr. Smith: I did not look at that data so I am unable to comment.

Q: Mary Dimmock, parent of patient (2:50:57): Dr. Unger, I know that there are differences in the different clinics in terms of the types of patients they see and that leads to some conflicts. My question is, when you do the multi-site study will there be any validation from one site to another, cross validation of how the diagnosis is done, or will you end up with a super-set of everybody that anybody diagnoses with CFS? You indicated in your report that 96-98% of patients have PEM yet doctor Jason mentioned that as few as 25% of patients using the Fukuda definition have PEM. How do you reconcile that and are we ready to finally accept that PEM is a required symptom?

A: Dr. Unger: When we have looked across the clinics, there were very few differences in any of the measures. We are not planning on validating one clinic's diagnosis versus another. It's really based on clinical experts that have a lot of experience with ME/CFS patients. The question of post-exertional malaise is a question of how you collect the data and how you apply the other case definition criteria. The problem is that when studies say they use the Fukuda case definition they don't give any other information as to how they applied it. I think the range of PEM reflects as much how the case definition is applied as the case definition itself. No case definition is going to result in a homogeneous population. PEM is intimately tied with the severity of the fatigue. If you include fatigue and a number of symptoms, it is very difficult to avoid PEM. The patients endorse it very highly. In our population-based studies, over 80% of patients endorsed PEM. We do feel that it is a very important measure.

Mary Dimmock: The only thing I would add to that is to remember Dr. Nacul's presentation yesterday in which he talked about the 163 permutations. There is any number of ill people who can fall into that bucket. And until we can get to the point that we are really clear on what this disease is, we're not making any progress.

Dr. Unger: Other case definitions have similar multiple permutations.

Q: Unidentified patient: The cognitive behavioral therapy is not going to address the grief and the loss of every single day when you lose something new. This pressure to use CBT is absurd. I practiced for 15 years. CBT is not the answer to everything, and it needs to get out of the CDC's recommendations. What are the studies besides CBT that have shown benefits for patients with ME?

Dr. Smith: We've done a review of all the studies, all the other counseling and therapeutic studies. All we've done is report what the studies show. We saw from the forest plot that the larger study predominated.

Robert Miller: The charge that is being placed on this panel is huge. Over the past few days, this illness has been referred to as CFS, chronic fatigue, pure CFS, acute CFS, and ME/CFS. What are we discussing?

Dr. Smith: I can say that the evidence report used the term ME/CFS and we included any trial that included ME, CFS or ME/CFS.

Dr. Nelson: The approach we took was very inclusive.
____________________

[Presentations resume]

Nancy G. Klimas, M.D. - Identification of Subsets of Individuals
(20 minutes) (begins at 3:03:19)
Director, Miami Veterans Affairs Gulf War Illness and ME/CFS Research Program; Professor and Chairperson, Department of Clinical Immunology; Scientific Director, Institute for Neuro-Immune Medicine, Nova Southeastern University

Disclosure, I don't earn anything and I'm broke. I was asked by the IOM to do a special disclosure that my thoughts are not the thoughts of the IOM.

Subgrouping is important for a lot of different reasons. First, we need to define a group that allows us to define pathogens. For example, you can subgroup by how high viral titers are. This is important, because in Montoya's Valcyte study, above a certain titer you got an 80% response rate, and below you got a 5% response rate. So, he was able to show subtyping. You can also create subgroups to help target treatment.

Biomarkers can show severity. The FDA encouraged us to use symptom severity as our best marker in our clinical trials. Nonetheless, we should still be pressing on to find those surrogates (e.g. vital titers) because they do make for a tighter design. HIV is the best example of that. Before we had HIV testing, we subgrouped by CD4 count. It became our best surrogate, and our best outcome variable. (Klimas pointed out that animal models have not been explored much in ME/CFS, but that they have been used with success for Gulf War Illness.)

Objective clinical markers can also be used as ways to subgroup patients. These include neuroimaging, autonomic testing, sleep studies, physical exams, cognitive testing, as well as laboratory-based markers. Attention, concentration and cognitive speed are the best markers.

When you subgroup people by symptoms, you have another strategy. This can include symptom clusters, level of severity, duration, mode of onset, age at onset, comorbidities, and the trajectory of the illness. The Chronic Fatigue Initiative found nine factors. Of course, fatigue will always come up first when you define people by fatigue. Inflammation (including neuro as well as inflammatory problems) came up second. GI symptoms came up as the third best factor. Pain was fourth.

Looking at comorbid conditions in 960 patients, we found that the prevalence of any cancer was 8%, which is about twice the national average. Contrary to what we heard in other presentations, psychiatric problems are not the most common comorbidities. The most frequent comorbid condition was FM (61%), followed by menopause (60%).  Non-Hodgkin’s lymphoma is also significantly elevated.

In terms of severity, lymph node tenderness tracked best. So, the inflammatory group tracked highest with severity.

Neuroimaging is an important player. Solid, good science has been coming out of this area. The PET scan study by Watanabe showing neuroinflammation points out that sometimes a single paper can be influential. Do we have to argue about neuroinflammation, or can we accept that systemic inflammation is attached to the brain?

Among laboratory studies for biomarkers, blood studies are the most common, but they don't necessarily reflect every compartment (e.g. brain). Other studies include biopsies. John Chia showed that with a biopsy of the stomach he can identify 80% of chronic fatigue subjects. These patients had evidence of enterovirus in the biopsy. Pathogenesis work on toxic substances, proteomics, detoxification pathways, mitochondrial studies, autonomic and genomic and “big data” methods have been very productive. Exercise challenges are also very productive, because we know that exercise leads to relapse. We can map mediators of relapse after exercise, which allows us to virtually model the illness.

Interestingly, when genomic pathways are compared between GWI and ME/CFS there is only a little bit of overlap, in spite of the fact that these are two identically presenting conditions. As a clinician you cannot tell them apart, but they are different. GWI is a toxic exposure, not a virus exposure. CFS downregulates metabolism in response to exercise, which is the opposite of what it should be doing. Exercise turns off energy, it turns off cell metabolism.  In GWI other cell-signaling pathways are used to try to compensate for things that aren't working. So, what we have in CFS is a turned-off genomic process, and in GWI we have a turned-on genomic process. In both, inflammatory response is increased after exercise. Pro-inflammatory cytokines describe a subgroup of patients with CFS and should be used as a subgrouping strategy. (Klimas mentioned the Younger study on leptin production as a case in point.)

NK function is an excellent biomarker. It is the best biomarker in terms of consistency. Out of 17 studies, 15 saw a group effect. The NK cell dysfunction correlates well with immune activation and with T cell function. This can be completely restored in vitro with IL 15.

____________________

Renée R. Taylor, Ph.D. - Subtypes of CFS/ME: New Discoveries and Unanswered Questions
(20 minutes) (begins at 3:24:42)
Vice Provost for Faculty Affairs, Licensed Clinical Psychologist, Professor, Department of Occupational Therapy, University of Illinois at Chicago College of Allied Health Sciences

Dr. Taylor's focus is on adolescents. This group has cognitive and learning impairments, academic decline, and declining social activities, relationships and extracurricular activities. Rates of association with mononucleosis in retrospective studies are high, and with mono you can control viral exposure. Adolescents also have more consistent activity and less psychiatric comorbidities.

Obviously, there are other infectious agents aside from EBV. We chose EBV because it is highly prevalent in the adolescent population. Adolescents who go on to develop ME/CFS have other symptoms during mono that are more severe. They also have more autonomic symptoms, and greater severity.

Of 301 adolescents with mono, 39 ended up with the diagnosis of CFS after six months. After 12 months, the sample dropped to 22 (7%). After 24 months, 13 (4%) still met the case definition (Jason's modified CDC.) These figures are consistent with all the adult studies.

Both the CFS and non-CFS group were equally as active. The difference is that the CFS group was sleeping more, and had greater severity of fatigue. Basically, they were pushing themselves to keep up with their peers. These adolescents also had greater severity at mono onset, which is consistent with adult studies. In exercise studies, teens showed the gas exchange abnormality which is also found in adults with ME/CFS.  They also found severe autonomic dysfunction in teens with ME/CFS both during the illness, and afterward at all intervals. There was no correlation between POTS and autonomic dysfunction.

There was also an increase in Th17 T cells that corresponded with Dr. Hornig's findings in adults. Taylor's group found a clear deviation from the usual role of cytokines, including a dysfunction in responses. Cytokines either over- or under-responding.

Conclusion: CFS is non-linear. There is no developmental trajectory. There is no predictable progression. It is person-specific. For some there is a relapsing and remitting course, for others they are always at the same level of illness. How do we measure this? We need to gather data in the moment, using current technology, because recall is not reliable. Taylor recommended using the Framingham heart study as a model.

____________________

Suzanne D. Vernon, Ph.D - What Outcomes Represent Improvement, Recovery, 
Prevention, Benefits, or Harms?
(20 minutes) (begins at 3:46)
Scientific Director, Solve ME/CFS Initiative

Dr. Vernon's talk discussed three key points:
  1. Several outcomes reported by patients as clinically meaningful are not measured in the literature.
  2. The knowledge base needs to be expanded by including data from similar diseases
  3. Defining core concepts will be accelerated by using patients as partners
Dr. Vernon began with a recap of the FDA workshop held in 2012. The FDA defined ME/CFS as a serious illness, with an unmet need for drug therapies.

Vernon stated that when there is confusion and lack of consensus, it is important to go back to the core. In this case, the core is defined by the patient community. The task is to determine whether what the patients were reporting as important could be correlated with the research literature to devise biologically relevant subgroups.

In the research done by the Solve ME/CFS initiative, the “patient voice” ( a million words) was analyzed through a natural language processing approach. Sentences were parsed and broken down into parts of speech. The words were then disambiguated. (Single words can have a variety of meanings.) The words were then classified according to standard concepts.

Four main groups of symptoms clusters emerged from the analysis, with nine small clusters. Vernon's group then compared these to 12,000 abstracts that shared the same lexical items. There were 10 frequently-reported symptoms that do not appear in the literature. Vernon says that because text mining reveals what is important to patients, it should be used to help direct research.

[Editor's comment: Linguistic studies have shown that meaning can only be derived from context. It is impossible to disambiguate a word once the context has been removed. In addition, there is, in any language, a plethora of dialects and idiolects with a variety of meanings assigned to common words.]
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