“Those drugs don’t shrink tumors, they just keep them stable for some time,” Uboha said. “If someone comes in with pain and symptoms from their disease, you want something that will shrink the tumor, so you need to put them on chemotherapy.”
While chemotherapies were approved for pNET in the past, the drugs had such high toxicity profiles that their use is now limited. Retrospective studies of a combination of two drugs, temozolomide and capecitabine, have shown a response in up to 70 percent of patients and have led the National Comprehensive Cancer Network to recommend this treatment. A clinical trial is underway now to more closely study the effect of these drugs.
This new trial at UW Carbone will be looking at the combination of temozolomide and a newer drug, TAS-102, that is related to capecitabine but that has a different mechanism of action.
“TAS-102 was approved for colon cancer patients last fall and many of those patients who no longer respond to capecitabine show a response to TAS-102,” Uboha said. “If this trial is successful, then we are one step closer to adding another line of therapy in treating neuroendocrine tumors.”
The phase 1B trial will initially enroll patients with low or intermediate grade NET of any tissue origin to determine the tolerable dose. Then, it will enroll pNET patients from across Wisconsin and, if more patients are needed, may include partner sites through the Big Ten Cancer Research Consortium. Patients will receive the chemotherapy for one year or until the disease progresses, whichever comes first.
“This is an ambitious study, and you are helping to fund areas such as patient reimbursement for travel and lodging, which will dramatically help with accrual to the study,” LoConte said about participants of Aly’s Honky Tonk Hustle. “You will also be helping to fund some of the correlate studies, meaning we will try to figure out if there are biomarkers associated with the patients who benefitted from the study.”
Aly’s parents, Russ and Sheila Wolff, said they could not be more proud of what Aly has created. “This development is exactly what Aly had in mind, and it is a step toward her ultimate goal of finding a cure for this terrible disease,” they added.
The trial is sponsored by Taiho Oncology, Inc. with support from the funds raised by The Aly Wolff Foundation, Inc. Please consider registering for Aly’s Honky Tonk Hustle, taking place on May 21 in McFarland, Wisconsin.