The protocol might not be the final version:
Well, that's something, as is this:
NIH’s intramural study protocol raises many questions | #MEAction
UPDATE #2
From Vicky Whittemore at NIH: “We have received many questions about the study from individuals with ME/CFS, so we sent those off to the investigators at the NIH Clinical Center to provide responses. We will post the responses on the NIH website and I can send you a link when they are posted. ”
Sorry, too rough when this story broke but I just wanted to summarise what concerns me about this study - much of which as been covered already in parts, but not all
Apart from the totally unhelpful choice of diagnostic criteria, it looks like a useful and comprehensive study..
Yes, agree, this could be a great study, if they fix the diagnostic criteria.
More on the problem with Reeves (2005) criteria
So once I was a bit of a case definition geek, and now you are all gonna suffer.
. Will try to keep it brief
The main beef over Reeves, as brilliantly shown by Lenny Jason's work, is that it's too lax and brings in a majority of sick people who are non-mecfs cases by other definitions: I think it's something like 2.5% prevalence for Reeves vs 0.25%-0.45% for, say, Fukuda, as more realistic prevlance figures. Applying that to a sample of 40 patients, you might get 10 or fewer Fukuda-patients - and 30 or more non-Fukuda patients - making this study fatally flawed from the off.
One of the worst things Reeves did was introduce a new way to reach the 'serious disability' criterion of Fukuda (Reeves is theoretically simply an 'implementation' of Fukuda) - based on emotional problems alone stopping you doing things
-Functional impairment as determined using the Short-Form 36 (SF-36): score of greater than or equal to 70 physical function subscale, or greater than or equal to 50 on role physical subscale, or greater than or equal to 75 on social function subscale, or greater than or equal to 66 on emotional subscale.
Jason showed that flaw brought in a lot of depressed patients. And as
@Bob pointed out, depressed patients are allowed in as long as they are stable (personally I have no problem with including depressed patients, so long as they have mecfs too).
My other big concern is the exercise test:
It even includes a two day CPET test.
...It's a two-day exercise test.
There's no way, in my view, a 2-day test is ready for use in a clinical study like this. As Prof Betsy Keller has made clear, the results are still inconsistent, and more critically there is no safety data other than they know some patients have relapses as a results. See my blog (patients discuss safety concerns further in the comments)
New Exercise Study Brings Both Illumination and Questions
But worse in my view, is making the test mandatory for inclusion in the study. I would refuse point blank to do even one maximal test, as my relapses are triggered at way lower activity, and I'm sure I'm not alone.
Patients willing to sign up to a 2-day test are likely to be unrepresentative of patients generally, and that's a huge issue - on top of the safety/ethical one.
So as things stand, what could be a terrific study risks recruiting a majority of patients who don't have mecfs, and those that do may well not be representative as they've signed up to do a 2-day max exercise test.
which is a bit of a pity
Let's hope the NIH are serious about sorting out these problems - and consult patients properly in future. It could be a beautiful relationship.