Has anyone dealt with pemvidutide phase 2?

greg_boulder said:

The gap between trial results and real-world results is consistent and it is not fraud.

greg_boulder has the substance of this right. The condition it depends on is worth stating. Read four things before the headline number. The population, because trial populations are selected and supported in ways that real cohorts are not. The comparator, because "better than placebo" and "better than the current standard" are different claims and get reported identically. The primary endpoint as pre-registered, because a secondary endpoint promoted after the fact is a hypothesis rather than a finding. And the completion rate, because a large effect in the half of participants who finished is a different result from a large effect in everybody enrolled.

greg_boulder said:

The gap between trial results and real-world results is consistent and it is not fraud.

Filing a mild objection. Mild because I might be wrong; an objection because nobody has addressed the case that does not fit. I would add the less popular caveat: these trial populations under-represented several groups, older adults and the highest BMI categories among them. The results probably generalise, and "probably" should be stated as an assumption rather than dropped.

Short answer first, then the reasoning. Relative and absolute effects need reading together. A 20% relative reduction on a high baseline risk is a large absolute benefit; the same relative figure on a low baseline risk is a small one, and press summaries almost always quote the relative number because it is bigger.

Dr.ObesityMed said:

Read four things before the headline number.

This is my experience too, for whatever a second data point is worth.