Experimental cell injection shows promise for rare brain metastases

This early study tested a new cell therapy called QH104 in just 3 patients whose solid tumors had spread to the lining of the brain (meningeal metastases) and had a specific marker called B7H3. The treatment uses specially engineered immune cells (CAR-γδ T cells) injected directly into the fluid around the brain. The goal was to see if it could shrink the cancer and how safe it was, but because the study is so small, the results are very preliminary.