I have a suspicion most patients will think like that. Indeed, what I am expecting, and I could be wrong, is that the severe effects will be claimed to be worth it by patients because of the long term benefits.
They also said that the treatment period is only six weeks
My reading was that the treatment period was more like six months. Six treatments of cyclo, each four weeks apart. So 24 weeks.
The doctor says in the video that during this period, ME symptoms get worse. At first, it's intermittent. You get a bad week or two after the infusion. But by the end of the six month period the transient worsening is no longer transient - it lasts up until the next infusion. She says the patients describe this period as "very hard". Two women in their early 40s went into premature menopause too. (They are looking into fertility preservation ahead of the next trial.)
The fact they are still extending the trial despite the severity of side effects is a definite reason to hope. You don't add another six months to a trial if you have nobody in remission that you want to follow! Also, it may well be the case that cyclo is helping some of the rituximab non-responders (who were included in this trial)
The other reason that I suspected cyclo is going well is she posts a slide with a map of cause and effect that shows an arrow going from T-Cells to the unknown signalling factor that leads to metabolic dysregulation. While rituximab affects b cells, cyclo affects b cells and t-cells.
It's not 100% clear that they are sure that t-cells are involved, but the schematic doesn't rule it out either.