Those of you who want to help advance the understanding of testosterone use for different conditions can join research studies that are currently enrolling. I was amazed to see how many studies are out there! However, none are looking at long term management of side effects like polycythemia with therapeutic phlebotomy, testicular atrophy with long term or cycled HCG therapy, HPGA normalization protocols using HCG+Clomid+estrogen blockers, and other important modalities that are being used by many physicians but with little controlled data.
Remember that some studies have placebo arms. Every study requires for you to read and sign a consent form that should clearly describe the risks and implications in joining the study. Make sure that the private investigator or research nurse overseeing the study explains things to you clearly.