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Both the National Cancer Institute and several pharmaceutical companies declined to pay for the research. Neither applicants nor funders discuss the reasons an application is turned down. But good guesses are the general shortage of funds and the concept tried in this experiment was too novel and, thus, too risky for consideration.
Researchers in Germany have discovered that methadone, an agent used to break addiction to opioid drugs, has surprising killing power against leukemia cells, including treatment resistant forms of the cancer.
Their laboratory study, published in the August 1 issue of Cancer Research, a journal of the American Association for Cancer Research, suggests that methadone holds promise as a new therapy for leukemia, especially in patients whose cancer no longer responds to chemotherapy and radiation.
"Methadone kills sensitive leukemia cells and also breaks treatment resistance, but without any toxic effects on non-leukemic blood cells," said the study's senior author, Claudia Friesen, Ph.D., of the Institute of Legal Medicine at the University Ulm. "We find this very exciting, because once conventional treatments have failed a patient, which occurs in old and also in young patients, they have no other options."