I think it is a great idea and would be useful to a very specific audience who likely have a "right now" need for that info. As far as monetization... this would probably be a great lead in if you are offering services to the medical centers who run the trials. Like adding an active list of Med Trials that the site visitors can access. Creating an email list and selling access to that list and traffic via onsite ads and newsletter mentions. This could be very lucrative if thats what your looking for. Or as a free listing service that can segway into a much higher ticket offer, such as med supply services. I actually have a simple plan that I could show you if your interested. I attempted to request an intro but that system seems to be down. You can message me directly: contact@jwcrawford.com