Has anyone done the $2000 study at Covance Dallas?

[cantgetright]

Covance Dallas has had multiple groups of this study paying $2000 for 3 nights and 1 outpatient visit. I was wondering if anyone heard any info about this study, or has actually completed it. I was scheduled to screen for it in July but I cancelled. It's a lot of money for only 3 nights so I'm guessing it's not an easy study to do and it probably requires an extreme amount of blood draws or some other intense amount of procedures.

Thanks in advance for the info.