back it was melanoma. for the next 13 years, coffey was cancer-free. about a year ago, she and her husband found out the cancer was back. scares you to death. what do we do now? what s the next step? how do we battle this? reporter: the cancer had spread to her lymph nodes, her bones, they are liver. treatment was grueling. i had two surgeries to remove lymph nodes, 32 treatments of radiation. and two weeks of interfuron treatments. reporter: none of it worked. the cancer was still there. dr. jess sauceman is running a clinical trial that tests an experimental drug that targets a genetic mutation in her tumor that it making the cancer grow. that mutation actually triggers the tumor cell to multiply.