January 27, 2014
Ottawa Researchers Discover New Combination Therapy To Kill Cancer
Cancer is the leading cause of death in Canada and is responsible for about 30% of all deaths, according to the Canadian Cancer Society. Despite the urgent need for new and effective drugs, it remains extremely difficult to develop anti-cancer therapies in a timely way. Researchers in Ottawa looked at how to leverage current experimental therapies, in different combinations, to speed the fight against cancer. Scientific evidence suggests a specific combination approach is effective, as published today in Nature Biotechnology.
"We are very excited about this novel combination approach and are looking to move this experimental therapy into clinical trials as soon as possible," said Dr. Robert Korneluk, distinguished professor at the University of Ottawa and senior scientist at the CHEO Research Institute. "I firmly believe that it's not a matter of 'if' this will help cancer patients – but 'when' this therapy becomes a standard of care."
"Our combination approach is quite different than standard chemotherapy treatments that can have significant negative side-effects," continued Dr. Korneluk. "Instead, we looked at combining two novel experimental cancer drugs that we already know work on the immune system. The results of our combination exceeded expectations – and furthermore, no harm was done to the surrounding healthy tissue when we eradicated tumors."
In some cases, tumors required 10,000-times less virus to kill a cancer cell when a SMAC mimetic was added. The combined use of these two drugs could possibly save years of clinical development time, allowing for faster patient access to these drugs. The research team postulates that this combination approach is likely better suited for specific cancers and specific uses. For example, tumors which cannot be surgically removed but which can be injected with a cancer-killing virus are good candidates.
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