Cancer

26 August 2011

Steve Jobs faces uphill cancer battle, say experts

When Apple CEO Steve Jobs, announced that he was stepping down speculation immediately turned to his ongoing health problems.

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When Apple CEO Steve Jobs, announced that he was stepping down as the head of the hugely successful technology company he co-founded in a northern California garage 35 years ago, speculation immediately turned to his ongoing health problems.

In a letter to Apple's board, the 56-year-old Jobs said he "always said if there ever came a day when I could no longer meet my duties and expectations as Apple's CEO, I would be the first to let you know. Unfortunately, that day has come".

This much is known about the health of Jobs, a legendarily private man: Since 2004, he has been fighting a rare form of pancreatic cancer called neuroendocrine cancer. In January, he took his second medical leave from Apple after undergoing a liver transplant for tumours that had spread to that organ.

Pancreatic cancer expert Dr Craig Devoe, from the department of medicine at North Shore-LIJ Health System in New Hyde Park, NY, said that "neuroendocrine tumours are uncommon, with only a few thousand cases a year."

What is neuroendocrine cancer?

For those that affect the pancreas, the numbers are even lower with fewer than 1,000 cases a year in the United States. In contrast, there are around 40,000 cases of other pancreatic cancers a year, Devoe said.

Dr David M. Levi, a professor of clinical surgery, liver and GI transplantation at the University of Miami Miller School of Medicine, said neuroendocrine cancer "is an unusual tumour. It can arise in a number of places, including the pancreas." Such tumours can also start in the lungs.

It's one of the few tumours that can benefit - to some extent - from a transplant, Levi said. Jobs' cancer started in the pancreas and then spread to the liver, making the liver transplant an option, Levi said, adding he has treated patients with this type of cancer and done liver transplants.

While the prognosis for neuroendocrine cancer is often better than for the more common type of pancreatic cancer, in which patients generally live less than a year after diagnosis, neuroendocrine cancer "can also be bad," Levi said.

Neuroendocrine cancer can return after treatment, Levi explained. And while a liver transplant can be effective, "it is not as great a picture as we first thought," he said. "A lot of these patients who have transplants eventually do recur."

Liver transplant and neuroendocrine cancer

"The vast majority of patients that have recurrent disease will die of their disease. One of the problems with the [liver] transplant is that now you are on immunosuppressant drugs, and while they keep you from rejection or destroying the liver, the immune system also would have helped deal with tumours," he said.

Devoe said a liver transplant is a treatment when "your back's against the wall," and isn't expected to cure neuroendocrine cancer, so very few are done. "There is still likely disease in lungs or bone or other places," he said.

"The fact that the disease came back is not surprising," he said. There are still some treatment options, including chemotherapy and radiation, he added.

These treatments won't cure the disease, but they may slow its progression, Devoe said. "It may extend the life of patients. But at this point, your best treatments are behind you and survival may be under a year or two," he said. "It's clearly incurable."

Doctors don't really know what causes neuroendocrine tumors. In the past year, the US Food and Drug Administration approved two new drugs for neuroendocrine tumours - sunitinib and everolimus.

In a commencement address in 2005 to Stanford University graduates, Jobs said: "No one wants to die. Even people who want to go to heaven don't want to die to get there. And yet death is the destination we all share. No one has ever escaped it."

More information

To learn more about neuroendocrine pancreatic tumors, visit Stanford University School of Medicine.

SOURCES: David M. Levi, M.D., professor, clinical surgery, liver and GI transplantation, University of Miami Miller School of Medicine; Craig Devoe, M.D., department of medicine, North Shore-LIJ Health System, New Hyde Park, N.Y.  


(Copyright © 2010 HealthDay. All rights reserved.)

 

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