A life upended
Now 32 and the mother of a 3-year-old named Gus, Ibarra is healthy and working as a writer for Seattle Children’s Hospital. Yet this young Seattle working mom has lived through trying times since May 12, 2011, when her life was upended by the blood cancer diagnosis.
It took six months of extensive chemotherapy, but by 2012 her cancer was gone. She married the love of her life, Angel Ibarra, who had proposed to her on a trip to Maui to celebrate her remission. The couple were delighted to find out her fertility was not damaged by her treatments, and just about four years after her diagnosis, along came Gus.
But the Ibarra family’s joy that year was short-lived. Just five months after the birth of their son, the cancer came back. Her relapsed leukemia was deemed high risk. Her doctors recommended a transplant — blood stem cells from a matched donor — to give her a new immune system.
“When I found out I had to have a transplant, I had already written about the procedure,” Ibarra said. “I knew how serious it was. I was more terrified than I’d ever been in my life. I was barely holding it together.”
Among her biggest concerns was a common complication of transplantation: graft-vs.-host disease, or GVHD. It occurs when the new immune cells from the donor (the graft) attack healthy tissues of the recipient (the host). In about half of such transplant patients, GVHD can develop as a chronic, debilitating disease. It can be fatal.
Then Ibarra heard about a clinical trial led by Fred Hutch researcher Dr. Marie Bleakley. The idea was that only certain types of donated blood cells were most responsible for the development of chronic GVHD. If those unwanted cells, known as naïve T cells, could be weeded out before the transplant, more patients might be spared of this complication.
“I was presented with the protocol, and with having to make a decision to go with it,” Ibarra recalled. “It was a very scary decision to make, especially with a little man at home, relying on me.”
She said Bleakley and her Fred Hutch team addressed her concerns head-on.
“They were very patient with me. They did not dumb things down. They did not sugarcoat it. They very carefully walked me through the study protocol,” she said. “For the first time, I started to feel a little bit of confidence.”