ALA has several plausible mechanisms for slowingALS progression, including enhancing energy pro-duction, reducing oxidative stress as a potent anti-oxidant and anti-inflammation. Preclinical studiesdemonstrated better motor function and improvedsurvival. One open-label study suggested improvedQOL and fatigue when administered as a palla-dium lipoic acid complex, but motor function wasnot assessed. Several PALS in the ALS online community reported improved muscle strengthwhen taking ALA as part of extensive supplementregimens, but most did not. Therefore, it isunclear whether the reported improvement wasdirectly related to ALA. Although one clinical trialwas completed in PALS, the result has not beenpublished. ALA was safe and well-tolerated basedon self-report from PALS and in clinical trials forother disease conditions at 600 mg daily. Given theabove, we cannot endorse ALA as an effectivetherapy for PALS. We support more research onthe efficacy of ALA in slowing ALS progression.
Risks (harms that occurred on this treatment)
Ashwagandha
WS appears reasonably safe, has plausible mechanisms by which it might slow ALS progression, and has promising data obtained in multiple different clinical models of ALS. While there are also some interesting self-reports from PALS and one verified ALS reversal on a compound containing WS, these must be interpreted with caution because of the variable natural history of ALS progression. We conclude that WS is a reasonable compound for ALS trials, and we look forward to the results of the one trial that is underway.
Lions Mane
While Lion’s Mane may have neuroprotective, neurotrophic, antioxidant, and anti-inflammatory properties that could, at least in theory, potentially help ALS, there are still no studies in ALS-relevant cell or animal models, nor in humans with ALS. Therefore, we do not have enough information to support the current use of Lion’s Mane for treating ALS. We hope to see the validation of its neuroprotective and anti-inflammatory benefits in ALS disease models, which may ultimately lead to clinical trials in PALS.
Caffeine
Caffeine is inexpensive, reasonably safe at doses of under 400 mg daily, and has plausible mechanisms by which it could slow ALS progression. However, data from pre-clinical models are contradictory and a two cohort studies showed no clear relationship between caffeine intake and ALS progression. Based on all this, we cannot endorse caffeine as anALS treatment.
Astaxanthin
There are theoretical mechanisms supporting the potential role of astaxanthin in the treatment of ALS, however, there are no ALS-specific pre-clinical data exploring this treatment. One verified“ALS reversal” occurred while taking astaxanthin in the setting of a cocktail of various other therapies—an association that does not prove causality. There have been no clinical trials of astaxanthin in PALS. Natural astaxanthin appears to be generally safe and inexpensive. We believe there is a need for further pre-clinical and/or clinical trials of natural astaxanthin in disease models and PALS, respectively, to further elucidate efficacy.
Vitamin C
Vitamin C is safe and inexpensive. As an antioxidant, it has a plausible mechanism for influencing the course of neurodegenerative diseases. Two flawed preclinical studies by the same group showed benefits in a mouse model of familial ALS. There are two case reports in which it was associated with improvement. However, there are multiple possible explanations for the improvement in these cases. It is not clear which if any dose of vitamin C might be beneficial for PALS; a small clinical trial using oral vitamin C at 2,000 mg daily was unable to demonstrate benefits in PALS. Based on this negative trial, we currently advise against using vitamin C to treat ALS.
Melatonin
Melatonin has plausible mechanisms, some positive (and some negative) pre-clinical data, and two case reports in which it was part of a cocktail of treatments associated with recovery of lost motor function. As we have stated previously, there are
multiple possible explanations for cases like these. There was also a very small, flawed retrospective study suggesting that PALS taking it progressed more slowly and lived longer than PALS were not taking it. Melatonin appears safe at high doses, but evidence is lacking for a proven benefit in slowing disease progression in ALS. Furthermore, an optimal dose and route of administration have not been established. Based on this data, a pilot trial of melatonin in PALS would be reasonable, but we cannot yet recommend it as an ALS treatment.
Proprionyl-L-Carnitine
There are good theoretical mechanisms for carnitines, some pre-clinical evidence for LC and ALCAR, and a single clinical trial that suggested ALCAR could slow disease progression in PALS. All three carnitines appear to be well-tolerated, generally safe and inexpensive. We believe that there is a need for future clinical trials of carnitines in PALS to further elucidate their efficacy. Until there is further data, we cannot endorse any of these supplements as a definite way to slow ALS progression; however, oral ALCAR at 1000mg three times daily (3000 mg total daily dose) appears to be a theoretically promising supplement available for PALS whom would like to self-experiment.