CHICAGO (AP) After five major surgeries for a particularly aggressive form of breast cancer, Patricia Thomas called the little pinprick she received in a government study the simplest procedure she's undergone.
That pinprick above her knee was an experimental vaccine derived from tiny bits of tumor protein that researchers hope will keep the 70-year-old Arlington, Va., woman's cancer from relapsing.
Though only preliminary, early results in Thomas and 13 other vaccinated survivors of advanced breast cancer suggest the researchers might be on the right path.
They have detected signs that the vaccine triggered an immune-system response in all 14 that might potentially fight recurring cancer cells, said co-researcher Dr. George Peoples Jr. of Walter Reed Army Medical Center.