While I applaud the efforts of Dr. Lerner and his team of volunteers, I found this paper to be very difficult to read and interpret. Much of the analysis was confusing and in some parts extraneous.
1. At its core, it is a case series of 142 patients and their treatment over time, rather than a clinical trial. There isn't a group really to compare people with as all were treated and the ones who stopped treatment weren't followed. In a trial, the high drop-out rate would be a concern -- when I initially read the paper, I thought everyone was followed for the full-time but it turns out many by week 18, about 30% of the initial 106 in group A had already dropped out in Table 3. We don't know what happened to these people. To be fair, the writers did default them to being "non-responders" which is acceptable.
2. Putting aside point 1, we can still get use the info on the people who were treated. I'm not convinced that people returned to "normal" or "near normal" life. From the article: " An EIPS of 0–5 is diagnostic of CFS. At EIPS values 6–10, patients no longer have CFS." At EIPS of 6, working 40 hours a week in a sedentary job, light limited housekeeping and social activities, with naps. Or at 7, without naps, does not strike me as a normal or near-normal life. I can appreciate improvement but don't call it normal. To me, near-normal is when you can do everything you want short of strenuous physical labor or exercise. Did people return to a similar job as the one they were doing before illness or did they need to downshift (i.e. they had no choice)? Also, it says that people had cognitive improvement but there is neither subjective nor objective evidence of this in the paper, other than the overall EIPS score (which doesn't talk about cognitive effects). Where is the immunologic data? Is this considered the same as the infectious disease measures?
3. In terms of the ID issues, we get a measure of titers (1:160) for HHV-6 but we don't get titer numbers for the other herpesviruses. It would be useful to know, even if those tests are based on Dr. Lerner's own lab tests. Also, Gerwyn's point about EBV has a point. Most people with positive EBV IgM, regardless of titers, would be considered under traditional medical standards to have an "active" or "very recent" EBV infection. IgM normally goes away pretty quickly after EBV mono. Now, it's true that maybe prior docs did not pay attention to IgM, didn't treat, or didn't test for it. My concern is how common is it for people with CFS to have positive IgMs (not IgG)? My impression, at least from people who have reported their results, is that it is not. Still interesting as these folks should get treated but just to put it into context.
4. Figure 3 is somewhat confusing in that the EIPS for overall Group A patients is not 106. The number of group A patients declines over time and their make-up varies over time. For example, randomly taking week 48 and looking at table 3, there were 30 total group A and data for 28 responders. To my eye, this means there is only data on 2 (30-28) non-responders so the comparison is with a very small number. Most of the group A is made up heavily of responders as time goes on so why have the comparison this way?
Also what is with the missing lower standard deviation lines in Figure 3? I take it the blue point is the mean and there is an upper SD line but no lower?
Perhaps all this sounds harsh and I am grateful that the group published the data they did but I don't think that my questions are any different from what they would have received from some other journal. I'd appreciate any responses and hope that my questions will help them in the future.
3.