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Orangutan's chemotherapy treatment for cancer ends

Associated Press Modified: November 14, 2012 at 12:22 am •  Published: November 13, 2012

MIAMI (AP) — Peanut, an 8-year-old orangutan with cancer and one of the star attractions at Miami's Jungle Island, no longer needs chemotherapy, her medical team announced Tuesday.

Peanut had been undergoing chemotherapy since August, following a diagnosis of non-Hodgkin lymphoma. After three courses of combination chemo-immunotherapy, her doctors decided it was time to wrap up her treatments for the aggressive lymphoma.

Although Peanut was not the first great ape to be treated for cancer like a human, experts said it is not common to use chemotherapy among orangutans.

Dr. Jason Chatfield, curator and staff veterinarian for Jungle Island, said the stress of "multiple immobilizations" for the treatment was a factor in a decision to end her chemotherapy. He added she received an adequate amount of chemotherapy.

"What we do know is that without this chemotherapy, Peanut would not survive," Chatfield said.

But he cautioned that imaging and scans used to gauge the effectiveness of chemotherapy in humans isn't available in Peanut's case, making it "next to impossible" to tell how effective the treatment was for the orangutan.

Now her medical team will closely monitor Peanut's daily progress and check for signs of relapse. And as part of her annual medical exam, doctors will also include diagnostic imaging such as a CT scan, radiology and ultra sound.

Peanut and her fraternal twin, Pumpkin, were born in captivity. They came to Jungle Island when they were 6 months old. The youngest of six orangutans there, the two have been a hit with park visitors, using sign language and an iPad to communicate with their trainers. The park has posted regular updates of Peanut's treatments on its main web page and on Facebook.

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