Persimmon
Senior Member
- Messages
- 135
@ Jonathan Edwards, let me join the quorum of those delighted and enthused by your PR participation.
What about Ampligen?
At the most recent FDA investigation into whether to approve Ampligen for "CFS" patients, the FDA's expert panel voted that this treatment was safe, but that it had not been shown to be effective.
The public discussion by those panel members (prior to their voting) conveyed the sense that most of them accepted the evidence presented that Ampligen was highly effective for a small minority of CFS patients, but that as they couldn't explain which subset would benefit they were reluctant to give it blanket approve for all CFS patients. They were also concerned that there was no objective means of measuring therapeutic response in CFS.
From memory, I think there have been two RCTs into Ampligen for CFS, although they weren't what you'd call exemplary trials.
Reputable ME researchers who were involved in the clinical component of those trials gave evidence that, in select cases, the treatment effect was dramatic.
This FDA process seemed locked into an impossible paradigm - CFS might encompass multiple illnesses, but we cannot be sure without having differentiating biomarkers; and we cannot adopt any biomarker unless it is universally exhibited by every CFS patient. (Sigh!)
So, Dr Edwards, might Ampligen fall into the twin category of (1) being worth following up in trying to identify biomarkers; and (2) being a drug worth trying on ME patients in the same way those 6 drugs used to be used therapeutically on a suck-it-and-see basis in RA?
(Unfortunately, Ampligen is not yet approved for any illness, and so it cannot readily be used off-label.)
So far I have not seen the evidence for other treatments in a form I think is adequate. Maybe the first thing is for people on PR to persuade Me! If I am persuaded that something works we instantly have a biomarker (drug response) to build research on.
Then various people have raised the issue that doctors may not try options in CFS, because it is so heterogeneous in its response. This may be true but in fact rheumatoid arthritis was exactly like that until recently. We had about 6 drugs that worked a bit, or only occasionally worked very well, and it was impossible to know which was the best for any given person. So we worked our way through the options. I do not think this is the major stumbling block.
What about Ampligen?
At the most recent FDA investigation into whether to approve Ampligen for "CFS" patients, the FDA's expert panel voted that this treatment was safe, but that it had not been shown to be effective.
The public discussion by those panel members (prior to their voting) conveyed the sense that most of them accepted the evidence presented that Ampligen was highly effective for a small minority of CFS patients, but that as they couldn't explain which subset would benefit they were reluctant to give it blanket approve for all CFS patients. They were also concerned that there was no objective means of measuring therapeutic response in CFS.
From memory, I think there have been two RCTs into Ampligen for CFS, although they weren't what you'd call exemplary trials.
Reputable ME researchers who were involved in the clinical component of those trials gave evidence that, in select cases, the treatment effect was dramatic.
This FDA process seemed locked into an impossible paradigm - CFS might encompass multiple illnesses, but we cannot be sure without having differentiating biomarkers; and we cannot adopt any biomarker unless it is universally exhibited by every CFS patient. (Sigh!)
So, Dr Edwards, might Ampligen fall into the twin category of (1) being worth following up in trying to identify biomarkers; and (2) being a drug worth trying on ME patients in the same way those 6 drugs used to be used therapeutically on a suck-it-and-see basis in RA?
(Unfortunately, Ampligen is not yet approved for any illness, and so it cannot readily be used off-label.)
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