i think you're all frightening the bloke to death... all this 'risk your health' business. How many clinical trials do you think go on throughout the year? I think the only thing you'd need to worry about is how bored senseless you'll be couped up all day doing absolutely sod all.
I know loads of people who've done these trials.. mainly because they worked at Zeneca and they get access / first refusals on them and i've never heard
ever of any problems. Worst case scenario's were feeling nauseous, lethargic, cold sweats..that sort of thing, but blimey.. you're a fighter aren't you? :boxer:
and as for 'paying a lot because of the health risk' scenario... £1000??? Really? hardly a drop in the embalming fluid for these drug companies