Mushroom compound may restore immune cells in cancer survivors

This study tests a tablet called PRaG-1 (made from cordycepin, a mushroom extract) in people who had solid tumors and now have low CD8+ immune cells after finishing radiation or chemotherapy at least six months ago. About 127 participants will take the tablet for two weeks, and those whose immune cells improve will be randomly assigned to continue the drug or switch to a placebo for another two weeks. The goal is to see if the drug can safely raise CD8+ cell levels and keep them up.