An experimental drug developed from research at the Medical University of South Carolina is showing early promise for some patients with advanced prostate cancer whose disease no longer responds to standard hormone therapies. In a Phase 2 clinical trial, researchers tested opaganib in combination with existing treatments and found that a subset of patients experienced encouraging signs that the therapy may be slowing the disease, including drops in blood markers linked to prostate cancer and periods of disease stabilization. Researchers are now analyzing blood samples from patients in the trial to identify biomarkers that could help predict who is most likely to benefit from the treatment. The findings could help advance a more personalized approach to prostate cancer care while opening the door to future therapies targeting the same biological pathway.