Well, both of my parents are doctors, (dad is a cardiologist, mom is a neurologist)

One thing that they both say to me is to NEVER enter these clinical trials for experimental drugs. They have seen way too many deaths or adverse side effects from them to recommend such trails for mere money. The only circumstance that they would recommend it to me is if I had some terminal illness that couldn't be cured by conventional drugs and clinical trials might be the last hope