Drug trials are usually safe but there is a reason they do them in small numbers of people 1st & why they pay all that money- anyone remember the "Elephant man " trials in 2006?
I remember that or a similar trial, where a number of test subject had adverse reaction to the drugs, some of them life harming
I first started doing clinical trials in 1990, and done various trials for 5 years; anyone in Scotland or Edinburgh might know of this clinic, Inveresk Research, located at Heriot Watt University
And it shows not everyone is willing to go through with the test, once they read the info on the previous trials, they get cold feet, as anything that went wrong is listed; like 1 death occurred during this trial, on examination it was found the patient hadn't been truthful with the clinic, and had a medical condition which he didn't declare, which was partly to blame for his death
So at all times, you must tell the clinic if you have taken something like aspirin, or even an joint, you must make them aware, as there could be a reaction; if you have taken a joint this wont be held against you, and the police wont be contacted, but your likely to be removed from future trials
I even met my brother in-law one day, and he couldn't go through, after reading the study notes, even though it would have paid him £1200, one year later after I have done a few trials, he got in contact with me, as he wasn't working, and wanted to know more about the trials, as he was reconsidering, after telling him about the drugs I was testing, he contacted the clinic, and this time went ahead with the clinical trial