mariovitali
Senior Member (Voting Rights)
I am not trying to defend Amatica but could someone explain to me how come we are so certain that a personalized approach is not relevant as a cure to MECFS ?
My friend, I completely agree with you. But I'm not the one you need to convince.If they’re not forthcoming about how scientifically questionable their approach is and what its limitations are, they are deceiving a bunch of desperate people who could’ve found a much better use for that money. It’s irresponsible at best. Very funny that they’re presenting this as an opportunity for the patients to exercise “individual agency”. The only ones who are getting empowered by this are Jack Hartfield and co. Shamelessly cashing in on the hype.
I’m half convinced that this subtypes thing is a ploy to persuade pwME to give all their money to tech startups. They’re trying to sell us on a fantasy that these individual approaches will cure us, with some of them going as far as to claim that they’re the only answer. I’m being hyperbolic of course I don’t think that they’re consciously swindling people, but in effect, it’s kind of what they’re doing
First of all, someone needs to define what a ‘personalised approach’ actually means – does it refer to n=1, different diseases, or subgroups? Often ‘personalised approach’ seems to be more marketing jargon than anything else.I am not trying to defend Amatica but could someone explain to me how come we are so certain that a personalized approach is not relevant as a cure to MECFS ?
First of all, someone needs to define what a ‘personalised approach’ actually means – does it refer to n=1, different diseases, or subgroups? Often ‘personalised approach’ seems to be more marketing jargon than anything else.
Which evidence are you using where this disagreement could be based on?But let’s assume we’re talking about subgroups in ME/CFS. Personally, I’m not at all sure to what extent any treatments will need to be personalised, but the following points bother me in this discussion
1. The claim that such subgroups definitely exist, usually coupled with the claim that this is proven by differing responses to certain off-label therapies. I would disagree with both.
Again, as above. People could not and should not conclude anything. It's the evidence which concludes.2. When people conclude that subgroups must first be defined or identified in order to carry out relevant research and/or find treatments. I consider this to be wrong as well.
For example, I’d be willing to bet that there is some common mechanism underlying sensory hypersensitivity in all people with ME. The aim for me would be to identify this, and then, from there, you can a) investigate whether there might be various upstream causes for this mechanism and b) starting to look for treatments.
It means that given differences we all have and since ME/CFS is a polygenic disease, this most likely means that one intervention or a number of certain interventions will not benefit every single patient that will receive it and it actually may make him worse.
I would like to make the case for "subgroups", if that's the only term we have for classifying pwME/CFS with differences, based on metabolomics.
I just glanced through the review article on metabolomics and did not see any studies relating to ME/CFS?
And it is from 10 years ago. I may be out of date but I doubt metabolomics has achieved anything in that time, in any disease.
Aren't many diseases polygenic? In Parkinson's <15% of cases can be linked to genetic risk factors, they still all have a lack of dopamine producing neurons, even Diabetes Type 2, while some risk gets inherited is a polygenic disease by definition.It means that given differences we all have and since ME/CFS is a polygenic disease, this most likely means that one intervention or a number of certain interventions will not benefit every single patient that will receive it and it actually may make him worse.
Mostly the 'evidence' you state above, that there simply isn't enough evidence to confidently state that there definitely are distinct 'subgroups'.Which evidence are you using where this disagreement could be based on?
Again, as above. People could not and should not conclude anything. It's the evidence which concludes.
I think it's difficult to make such a claim about heterogeneity until it has been proven that any of the markers they’re using are actually relevant to the disease. Otherwise, the ‘heterogeneity’ could also stem from factors that have absolutely nothing to do with it, or maybe FGF-21 is a marker correlating with disease severity. Furthermore, the condition may still have common causes, either upstream or downstream, even if this FGF-21 turns out to be directly relevant to the condition.On the contrary, Moreau's 2025 FGF-21 study is an example. Stratifying patients by FGF-21 concentrations revealed differences in PEM, immune/autonomic symptoms and cognition that were not adequately captured by diagnostic category alone. PrecisionLife’s combinatorial analysis frames ME as highly polygenic and heterogeneous
The general goal is to use many markers for prediction.
Has that ever worked?
It has for Kidney disease, MS, Diabetes.
Sufficient to be clinically useful, presumably prognostically?
I am surprised to be honest. There are plenty of diseases where you make a diagnosis or predict one based on three or four biochemical measures but I wouldn't call that metabolomics. The brain people I have been talking with talk in terms of single predictive molecules like synuclein.
Yes mostly prognostic.
No, they are much more controlled studies. Amatica's plan seems very noisy. But noise can be dropped with scale. The question will be how many people do they need? It might need to be decode scale (tens of thousands).@MelbME those other disease they were able to screen on other biomarkers first, to identify what was wrong? Other than test variability, my main fear is that anyone can send a test in? It feels like amaticas data set is a lump of selection bias and potentially not even Me/CFS.
Is that a valid concern?
Those are the companies and products. These ones are used clinically. They'd be more widespread if the gigantic pathology companies didn't have a stranglehold on public and private health systems.Hmm. Those are adverts. I wonder just how useful they are. They seem to be giving risk rates over a period of years. There aren't many situations where that alters what you actually do. One of them seems to be a combination of tests for different cancers rather than a multiprotein indictor for an outcome. At least in the UK any value of these tests is likely to be completely drowned out by the chaos of the haealthcare provision system!!
I guess I used half a dozen cell and protein assays to manage people on rituximab but I didn't think it needed calling omics or personalised medicine. Just doing the relevant tests.