Real Human leads?

So I could get $5 for each real human that qualifies for a clinical trial. I wont get paid until they actually show up for their screening trial. Of course its a local thing to a metro city. The person will also get paid by getting screened. If the person qualifies, I get a 2x bonus.

So pretty much I need qualified leads, with this very specific niche. Any ideas on how to get these leads. I may be able to get one or 2 other people in on this, if you are local to where the trial is at.
thanks
-d

Post ads on craigslist.

I second the craiglist and do it repeatedly to keep your ad on top.
Experiment with different ads and also look for other local forums/ad sites

I live in a big college town, and we have a couple of the clinical trial places here always advertising. Why? Because young "healthy" college students are eager to earn extra money and apparently make good trial subjects.

If you have a college in your town, might try targeting students.