In Praise of Observational Evidence
asteriskmag.com
In Praise of Observational Evidence
1–10 of 56 posts
Re: In Praise of Observational Evidence
#2Re: In Praise of Observational Evidence
#3Re: In Praise of Observational Evidence
#4Re: In Praise of Observational Evidence
#5This is not happening.
> I was surprised to find that they usually discard papers based on observational evidence wholesale.
He he...welcome to the real world!
Re: In Praise of Observational Evidence
#6Don't forget that RCTs are very far from perfect and issues -- sometimes literally fatal issues -- have later turned up via observational evidence in large cohorts. Vioxx, for instance. Many others.
I believe, without the tiniest shred of doubt, that the only trials drugs need to go through are initial safety/toxicity trials (phases 0/1) and that everything else would be much better left to access+observation.
Re: In Praise of Observational Evidence
#7Re: In Praise of Observational Evidence
#8They reference RCT without first defining it.
I noticed that as well. My eyes feverishly scanning the previous paragraph for the definition.
Re: In Praise of Observational Evidence
#9Re: In Praise of Observational Evidence
#10In medicine, observational evidence is actually better and far more ethical than the RCT. (Which simply dooms the terminally ill to fake treatment.) You just need large datasets and an agile culture that's responsive to new input. Don't forget that RCTs are very far from perfect and issues -- sometimes literally fatal issues -- have later turned up via observational evidence in large cohorts. Vioxx, for instance. Man…
Should we demand an RCT before we accept evidence? Of course not. At some point you do have to make a choice on things.
And it should be noted that most drugs do have early cutoff criteria if the evidence is strong enough that it is working. It isn't like people are wanting to withhold good treatments from the world. Adding controls and randomizing them, though, has proven to be highly effective at helping progress.