Scientists Race To Improve 'Living Drugs' To Fight Cancer

Source:  NPR Health News

Aaron Reid is lying in a hospital bed at the National Institutes of Health Clinical Center when doctors arrive to make sure he's ready for his experimental treatment.

"How's your night? Any issues?" asks Dr. Katherine Barnett, a pediatric oncologist, as they begin to examine Reid.

Reid, 20, of Lucedale, Miss., has been fighting leukemia since he was 9 years old. He has been through chemotherapy and radiation twice, a bone marrow transplant and two other treatments.

But the leukemia keeps coming back. This time, the cancer is all over his body. He can feel the pain in his bones. He's in Bethesda, Md., for what could be his last hope.