ALS Reversals

Some times people with ALS get better

Pre-clinical models (animal or cell models recognized by ALSUntangled reviewers to be relevant to ALS)

Grade C: One or more peer-reviewed publication(s) reporting benefits in flawed studies.

Animal studies are assumed to be ‘well designed’ when they follow published guidelines. When they deviate from these they are considered ‘flawed’.

L-Serine

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L-serine is a reasonably inexpensive, widely available nutritional supplement that has a plausible mech-anism by which it could help a subset of patients who might have ALS from BMAA-toxicity. A small Phase I trial showed that L-serine up to 15 g twice daily is relatively well tolerated. A larger follow up trial is planned and will shed further light on its safety and utility as an ALS therapeutic. Unfortunately, since it is challenging to reliably measure BMAA in PALS, it will be difficult to identify the subset most likely to respond. Until a reliable assay for measuring BMAA exposure in living people arises, or a follow up trial confirms safety and demonstrates benefit independent of this, we cannot recommend L-serine as a treatment for ALS.

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Hyperbaric Oxygen

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Although there are plausible mechanisms by which HBOT could work in ALS and a flawed pre-clinical study showing benefit in a mouse model, the best available human trial of HBOT showed no benefit. Given this negative human trial and the fact that HBOT has potentially serious complications, we do not recommend HBOT for patients with ALS at this time.

Kim Cherry’s ALS reversal, which occurred on HBOT and several other alternative treatments, appears very interesting. We do not think this is due to HBOT alone. There are other rare examples of ALS reversals on different (or sometimes no) treatments (28). Other explanations for these reversals include undetected ALS mimics syndromes or endogenous mechanisms that confer resistance to the disease (28). We look forward to further study of cases like this (29).‌‌

Declaration of interest: ALSUntangled is sponsored by the ALS Association and the Motor Neurone Disease Association.‌

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Precision Stem Cell

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At ALSUntangled our goal is to provide guidance on the mechanism, pre-clinical data, anecdotal evidence, trials and risks of various alternative treatment options. Our goal is not to challenge the rights of PALS to pursue these options. Along these lines, MSC transplants in general have a promising mechanism, good pre-clinical data in ALS models and appear reasonably safe when performed with approved standardized protocols, proper oversight, and monitoring. However, the specific protocols used at PSC for PALS are poorly detailed, appear variable in terms of the sources of MSCs being used, the ways these are being modified and the places where these are being inserted, have no provision for confirming the material being inserted, and have only subjective and usually brief improvements associated with them. ALSUntangled strongly supports further study of MSC in PALS, but only with transparent, reproducible protocols that include confirmation of transplanted material and objective outcome measures. At this time, it does not appear to us that PSC is meeting these criteria.

Endotherapia

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Endotherapia has a proposed mechanism that hinges on the ability of an isolated laboratory’s immunoblots to identify the cause and specific pathways that are driving ALS progression. In our opinion this ability has never been convincingly demonstrated. While there is a flawed animal study supporting the utility of Endotherapia in rats, such studies rarely translate into useful human treatments (29). The data on Endotherapia in PALS have so many problems that we believe they are uninterpretable. ALSUntangled does not recommend the use of Endotherapia for ALS at this time. A reasonable next step would be a study to validate the utility of the above-described immunoblots, ideally by a group without a potential conflict of interest.

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Methylcobalamin

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MeCbl has promising mechanisms and positive preclinical data from two different ALS models. Unfortunately, the anecdotal data we found did not identify any clear specific benefit, and the best of three clinical trials was unable to show an overall difference in ALSFRS-R progression or survival between PALS treated with MeCbl and those treated with placebo (26). A sub-group of patients with very specific pretreatment progression rates of 1–3 ALSFRS-R points over 12 weeks, and very early disease (less than 12 months from symptom onset) may have had benefit (26). This finding needs to be replicated, especially since an earlier study suggested patients with longer disease duration were more likely to benefit (20). We would like to see a full traditional sub-group analysis (28) carried out on the data from the third trial (26). This sub-group analysis could then be used to design inclusion criteria for a new phase III trial comparing MeCbl 50 mg twice a week IM to placebo. The new trial could measure serum B12 and homocysteine, and have pre-planned sub-group analyses that are both logical and practical. While we wait for this, PALS who wish to try MeCbl are reminded that the above studies used very high, injected doses, which appear to be available only by prescription. Lower over-the-counter doses administered orally have not been studied. It is well established that over-the-counter oral supplements may be of poor and inconsistent quality (32). Some over-the-counter oral vitamin B supplements contain not only B12 but also B6, which in large quantities can be harmful to the nervous system (33).

Mito Q

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MitoQ has a promising mechanism, positive preclinical data from two different ALS models, and appears reasonably safe and inexpensive, especially at doses of 10 mg daily. Available anecdotal data are insufficient to determine how helpful this might be in PALS. A small open-label pilot trial with validated ALS diagnoses and outcomes appears warranted.

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Acupuncture

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Acupuncture is reasonably safe, and has potential mechanisms of action, pre-clinical studies and case reports suggesting that it could be a useful treatment for ALS. However, before it can be endorsed even as a candidate for a phase II trial, the studies described above need to be independently replicated using more clearly verified diagnoses and more rigorous designs, including appropriate controls and validated ALS outcome measures.

Vitamin D

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At this time, there is evidence that PALS, like those with other chronic illnesses, are at increased risk for vitamin D deficiency. It is, therefore, reasonable to screen PALS for this. If vitamin D deficiency is found, it seems reasonable to supplement vitamin D according to established guidelines (31) in order to avoid medical complications of vitamin D deficiency. It is not yet clear, however, that vitamin D supplementation can slow disease progression, improve muscle strength, or reduce falls in PALS. We support further studies to answer these questions.