doreen gerber, patient: i certainly feel so much better after these treatments. i didn't lose all my hair. i'm not bloated any more. so far, the results of this experimental genetic study are encouraging. dr. pegram: we see no evidence of recurrence of the ovarian cancer following her gene therapy treatment. but patients will continue to be monitored to determine the long-term results of this new treatment technology. another class of drugs, known as angiogenesis-inhibiting drugs, also hold great promise in the ongoing battle with cancer. these drugs cut off the blood supply to tumors, depriving them of the nourishment necessary for growth. dr. glaspy: the angiogenesis-inhibiting drugs... there are a lot of them out there. some of them have exciting pre-clinical data. they're in early clinical trials, and they may sort of change this gameboard a lot for us. then we... get into the realm of experimental treatments, drugs like herceptin, which... attack something that's different about a cancer cell, and make that cell either stop growing, or make it more sensitive