Oral Minocycline Therapy Improves Symptoms of Myalgic Encephalomyelitis, Especially in the Initial Disease Stage

Abstract:

Objective: Central nervous system dysfunction associated with myalgic encephalomyelitis (ME) has been suggested to be the main cause of chronic fatigue syndrome. In animal models of chronic fatigue, minocycline was reported to act as a suppressor of neural inflammation. Minocycline may thus exert favorable therapeutic effects in patients with ME.

Methods: Oral minocycline (100 mg ×2 on the first day, followed by 100 mg/day for 41 days) was administered to 100 patients with ME. The performance status score (0-9), orthostatic intolerance during the 10-min standing test, neurologic disequilibrium, and neuropathic pain were compared before and after treatment.

Results: After therapy completion, favorable effects were observed with a decrease in the performance status score of ≥2 points in 27 patients (27%). Before treatment, 6 of the 27 patients had orthostatic intolerance with an inability to complete the 10-min standing test; after treatment, this symptom resolved in 4 and improved in 2 patients. In addition, after treatment, postural orthostatic tachycardia resolved in five of eight patients, disequilibrium resolved in five of eight patients, and fibromyalgia or neuropathic pain was attenuated in four of five patients. The favorable effects appeared dependent on a shorter disease duration, primarily for a duration of less than three years and most frequently within six months of the disease onset. However, acute adverse effects with nausea and/or dizziness caused 38 patients (38%) to discontinue treatment in the first few days.

Conclusion: Oral minocycline therapy may be an effective treatment option for patients with ME, especially in the initial stage of the disease.

Source: Miwa K. Oral Minocycline Therapy Improves Symptoms of Myalgic Encephalomyelitis, Especially in the Initial Disease Stage. Intern Med. 2021 Apr 26. doi: 10.2169/internalmedicine.6082-20. Epub ahead of print. PMID: 33896862. https://pubmed.ncbi.nlm.nih.gov/33896862/

Off label use of shows promise as a treatment for Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS): a retrospective study of 101 patients treated with a low dose of Aripiprazole

In a retrospective study, we reviewed the medical records of 101 patients who met the criteria for a ME/CFS diagnosis according to three separate case definitions (Fukuda, CCC, and IOM) and who received off-label aripiprazole (Table (Table1).1). Medical records were included for individuals evaluated in the clinic at least twice, representing periods before and after the use of the medication. The age range was from 18 to 84 years old (mean 50 years), with a gender distribution of 67% female and 33% male, and the duration of illness was from 1 to 54 years (median 13 years).

The daily oral dose of aripiprazole ranged from 0.2 to 2.0 mg/day (mean 1.1 mg/day). Dosage started at 0.25 mg/day and titrated up or down based on each patient’s observations and feedback. The duration of aripiprazole therapy ranged from less than one month to 17 months (mean 7.8 months). Patient records were also evaluated for concurrent use of various classes of antidepressants, including selective serotonin reuptake inhibitors (SSRI), serotonin-norepinephrine reuptake inhibitors (SNRI), serotonin modulators, norepinephrine–dopamine reuptake inhibitors (NDRIs), and tri-cyclic antidepressants. The difference in antidepressant use between responders vs. non-responders was not statistically significant (p = 0.145) using the test for proportions, suggesting that antidepressant use does not predict or preclude a clinical response to aripiprazole.

Source: Crosby LD, Kalanidhi S, Bonilla A, Subramanian A, Ballon JS, Bonilla H. Off label use of Aripiprazole shows promise as a treatment for Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS): a retrospective study of 101 patients treated with a low dose of Aripiprazole. J Transl Med. 2021 Feb 3;19(1):50. doi: 10.1186/s12967-021-02721-9. PMID: 33536023; PMCID: PMC7860172. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7860172/ (Full text)

Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS): Where Will the Drugs Come From?

Abstract:

Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a chronic debilitating disease characterized by severe and disabling fatigue that fails to improve with rest; it is commonly accompanied by multifocal pain, as well as sleep disruption, and cognitive dysfunction. Even mild exertion can exacerbate symptoms. The prevalence of ME/CFS in the U.S. is estimated to be 0.5-1.5% and is higher among females. Viral infection is an established trigger for the onset of ME/CFS symptoms, raising the possibility of an increase in ME/CFS prevalence resulting from the ongoing COVID-19 pandemic. Current treatments are largely palliative and limited to alleviating symptoms and addressing the psychological sequelae associated with long-term disability.

While ME/CFS is characterized by broad heterogeneity, common features include immune dysregulation and mitochondrial dysfunction. However, the underlying mechanistic basis of the disease remains poorly understood. Herein, we review the current understanding, diagnosis and treatment of ME/CFS and summarize past clinical studies aimed at identifying effective therapies. We describe the current status of mechanistic studies, including the identification of multiple targets for potential pharmacological intervention, and ongoing efforts towards the discovery of new medicines for ME/CFS treatment.

Source: Toogood PL, Clau DJ, Phadke S, Hoffman D. Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS): Where Will the Drugs Come From? Pharmacol Res. 2021 Jan 30:105465. doi: 10.1016/j.phrs.2021.105465. Epub ahead of print. PMID: 33529750. https://pubmed.ncbi.nlm.nih.gov/33529750/

The evidence base for physiotherapy in myalgic encephalomyelitis/chronic fatigue syndrome when considering post-exertional malaise: a systematic review and narrative synthesis

Abstract:

Background: Due to the inconsistent use of diagnostic criteria in myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS), it is unsure whether physiotherapeutic management regarded effective in ME/CFS is appropriate for patients diagnosed with criteria that consider post-exertional malaise (PEM) as a hallmark feature.

Purpose: To appraise current evidence of the effects of physiotherapy on symptoms and functioning in ME/CFS patients in view of the significance of PEM in the applied diagnostic criteria for inclusion.

Methods: A systematic review of randomized controlled trials published over the last two decades was conducted. Studies evaluating physiotherapeutic interventions for adult ME/CFS patients were included. The diagnostic criteria sets were classified into three groups according to the extent to which the importance of PEM was emphasized: chronic fatigue (CF; PEM not mentioned as a criterion), CFS (PEM included as an optional or minor criterion) or ME (PEM is a required symptom). The main results of included studies were synthesized in relation to the classification of the applied diagnostic criteria. In addition, special attention was given to the tolerability of the interventions.

Results: Eighteen RCTs were included in the systematic review: three RCTs with CF patients, 14 RCTs with CFS patients and one RCT covering ME patients with PEM. Intervention effects, if any, seemed to disappear with more narrow case definitions, increasing objectivity of the outcome measures and longer follow-up.

Conclusion: Currently, there is no scientific evidence when it comes to effective physiotherapy for ME patients. Applying treatment that seems effective for CF or CFS patients may have adverse consequences for ME patients and should be avoided.

Source: Wormgoor MEA, Rodenburg SC. The evidence base for physiotherapy in myalgic encephalomyelitis/chronic fatigue syndrome when considering post-exertional malaise: a systematic review and narrative synthesis. J Transl Med. 2021 Jan 4;19(1):1. doi: 10.1186/s12967-020-02683-4. PMID: 33397399; PMCID: PMC7780213. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7780213/ (Full text)

Graded Exercise Therapy Doesn’t Restore the Ability to Work in ME/CFS. Rethinking of a Cochrane Review

Abstract:

Background: Cochrane recently amended its exercise review for myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) in response to an official complaint.

Objective: To determine if the amended review has addressed the concerns raised about the previous review and if exercise is an effective treatment that restores the ability to work in ME/CFS.

Method: The authors reviewed the amended Cochrane exercise review and the eight trials in it by paying particular interest to the objective outcomes. We also summarised the recently published review of work rehabilitation and medical retirement for ME/CFS.

Results: The Cochrane review concluded that graded exercise therapy (GET) improves fatigue at the end of treatment compared to no-treatment. However, the review did not consider the unreliability of subjective outcomes in non-blinded trials, the objective outcomes which showed that GET is not effective, or the serious flaws of the studies included in the review. These flaws included badly matched control groups, relying on an unreliable fatigue instrument as primary outcome, outcome switching, p-hacking, ignoring evidence of harms, etc. The review did also not take into account that GET does not restore the ability to work.

Conclusion: GET not only fails to objectively improve function significantly or to restore the ability to work, but it’s also detrimental to the health of≥50% of patients, according to a multitude of patient surveys. Consequently, it should not be recommended.

Source: Vink M, Vink-Niese F. Graded exercise therapy doesn’t restore the ability to work in ME/CFS. Rethinking of a Cochrane review [published online ahead of print, 2020 Jun 14]. Work. 2020;10.3233/WOR-203174. doi:10.3233/WOR-203174 https://pubmed.ncbi.nlm.nih.gov/32568149/

Researchers discover potential therapeutic approach to treat ME / CFS

Press Release:

Researchers have discovered the pharmacological drug, Naltrexone, significantly restored the function of faulty receptors associated with myalgic encephalomyelitis, also known as Chronic Fatigue Syndrome (ME/CFS).

Researchers from the National Centre for Neuroimmunology and Emerging Diseases (NCNED), Menzies Health Institute Queensland, Griffith University led the research, which has been published in Frontiers in Immunology.

NCNED is the peak research centre nationally and is internationally recognised for its world-leading research on the identification of the pathology, developing a screening test and pharmacotherapeutic intervention for ME/CFS.

NCNED researchers were the first in the world to develop the gold standard in experimental research known as patch clamp technique in immune cells to measure TRP receptor function.

The immune cells are used as a model for assessing TRP receptor function and reflect physiological activity in all body tissues expressing these receptors.

NCNED researchers have paved the way for the identification of the pathology of ME/CFS and biomarker development by further reporting in several recent research papers that these receptors were faulty from ME/CFS patients when compared to healthy people.

These receptors are widely found in the body and implicated in symptoms and onset of this illness. Importantly, the current groundbreaking research has used Naltrexone to restore the function of these faulty receptors in the immune cells from ME/CFS patients.

“This world-first discovery suggests new potential pharmaco-therapeutic interventions in ME/CFS,” co-author and Stafford Fox Medical Research Professorial Fellow, Professor Sonya Marshall-Gradisnik said.

“We continue to confirm the pathology of these faulty receptors and now we are thrilled we are moving into possible treatments for ME/CFS.”

Dr Helene Cabanas, Post-Doctoral Research Fellow and first author, said: “We used the patch clamp technique to measure the faulty receptor function. Following Naltrexone treatment we found the faulty receptor function was significantly improved in immune cells from ME/CFS patients, suggesting beneficial effects for patients.”

Professor Paul Scuffham, Director of Menzies Health Institute Queensland, said NCNED continued to lead the world in the identification of the pathology of ME/CFS and this latest research signified possible ways forward for the treatment of ME/CFS patients.

“Our aim is to continue employ the gold standard technique to investigate the pathology and possible pharmacological inventions for the benefit of ME/CFs patients,” Professor Marshall-Gradisnik said.

“Our research aims to translate our research findings to benefit ME/CFS patients. The core of NCNED values is patients are our priority.

“We thank the Queensland Government, national granting organisations and our benefactors without whom this groundbreaking research would not be possible.”

Source: Griffith University News.

News and views in myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS): The role of co-morbidity and novel treatments

Abstract:

Though affecting many thousands of patients, myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) should be considered an orphan disease, since the cause remains elusive and no treatment is available that can provide complete cure. There is reasonable insight into the pathogenesis of signs and symptoms, and treatments specifically directed to immunological, inflammatory and metabolic processes offer relief to an increasing number of patients. Particular attention is given to the importance of co-morbidity requiring appropriate therapy.

Promising results are obtained by treatment with Metformin, or possibly Momordica charantia extract, which will correct insulin resistance, with Meldonium improving the transportation of glucose into the mitochondria, with sodium dichloroacetate activating pyruvate dehydrogenase, and with nutraceutical support reducing oxidative and inflammatory impairment.

Copyright © 2019 The Authors. Published by Elsevier Ltd.. All rights reserved.

Source: Comhaire F, Deslypere JP. News and views in myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS): The role of co-morbidity and novel treatments. Med Hypotheses. 2019 Oct 22;134:109444. doi: 10.1016/j.mehy.2019.109444. [Epub ahead of print] https://www.ncbi.nlm.nih.gov/pubmed/31669858

Rethinking the Standard of Care for Myalgic Encephalomyelitis/Chronic Fatigue Syndrome

For over two decades, the standard of care for myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) has been cognitive behavior therapy (CBT) and graded exercise therapy (GET). Both interventions had been recommended by the US Centers for Disease Control and the UK NICE guidelines. Behavioral intervention as the clinical standard was given a considerable boost by the 5 million–pound PACE trial, a large multi-arm randomized trial of CBT and GET launched in 2007. This British government–funded trial was intended to definitively answer whether such interventions were beneficial in ME/CFS. In their 2011 and 2013 publications, the PACE trial authors announced with widespread publicity that 22% of their patients had “recovered” and 59–61% had clinically improved across the CBT and GET interventions.

Read the rest of this article here.

Source: Friedberg, F., Sunnquist, M. & Nacul, L. J GEN INTERN MED (2019). https://doi.org/10.1007/s11606-019-05375-y https://link.springer.com/article/10.1007%2Fs11606-019-05375-y

Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: From Pathophysiological Insights to Novel Therapeutic Opportunities

Abstract:

Myalgic encephalomyelitis (ME) or chronic fatigue syndrome (CFS) is a common and disabling condition with a paucity of effective and evidence-based therapies reflecting a major unmet need. Cognitive behavioural therapy and graded exercise are of modest benefit for only some ME/CFS patients, and many sufferers report aggravation of symptoms of fatigue with exercise.

The presence of a multiplicity of pathophysiological abnormalities, in at least the subgroup of people with ME/CFS diagnosed with the current international consensus “Fukuda” criteria, points to numerous potential therapeutic targets. Such abnormalities include extensive data showing that at least a subgroup has a pro-inflammatory state, increased oxidative and nitrosative stress, disruption of gut mucosal barriers and mitochondrial dysfunction together with dysregulated bioenergetics.

In this paper, these pathways are summarised, and data regarding promising therapeutic options that target these pathways are highlighted; they include coenzyme Q10, melatonin, curcumin, molecular hydrogen and N-acetylcysteine. These data are promising yet preliminary, suggesting hopeful avenues to address this major unmet burden of illness.

Copyright © 2019. Published by Elsevier Ltd.

Source: Morris G, Puri BK, Walker AJ, Maes M, Carvalho AF, Walder K, Mazza C, Berk M. Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: From Pathophysiological Insights to Novel Therapeutic Opportunities. Pharmacol Res. 2019 Sep 8:104450. doi: 10.1016/j.phrs.2019.104450. [Epub ahead of print] https://www.ncbi.nlm.nih.gov/pubmed/31509764

Monitoring treatment harm in myalgic encephalomyelitis/chronic fatigue syndrome: A freedom-of-information study of National Health Service specialist centres in England

Abstract:

The use of graded exercise therapy and cognitive behavioural therapy for myalgic encephalomyelitis/chronic fatigue syndrome has attracted considerable controversy. This controversy relates not only to the disputed evidence for treatment efficacy but also to widespread reports from patients that graded exercise therapy, in particular, has caused them harm. We surveyed the National Health Service-affiliated myalgic encephalomyelitis/chronic fatigue syndrome specialist clinics in England to assess how harms following treatment are detected and to examine how patients are warned about the potential for harms.

We sent 57 clinics standardised information requests under the United Kingdom’s Freedom of Information Act. Data were received from 38 clinics. Clinics were highly inconsistent in their approaches to the issue of treatment-related harm. They placed little or no focus on the potential for treatment-related harm in their written information for patients and for staff. Furthermore, no clinic reported any cases of treatment-related harm, despite acknowledging that many patients dropped out of treatment.

In light of these findings, we recommend that clinics develop standardised protocols for anticipating, recording, and remedying harms, and that these protocols allow for therapies to be discontinued immediately whenever harm is identified.

Source: McPhee G, Baldwin A, Kindlon T, Hughes BM. Monitoring treatment harm in myalgic encephalomyelitis/chronic fatigue syndrome: A freedom-of-information study of National Health Service specialist centres in England. J Health Psychol. 2019 Jun 24:1359105319854532. doi: 10.1177/1359105319854532. [Epub ahead of print] https://www.ncbi.nlm.nih.gov/pubmed/31234662