One of the latest trends in cancer treatment for 2014 is the use of targeted drugs that attack the genetic “on switch” for cancer. According to recent story on CBS News, one of these new approaches to fighting cancer is a type of targeted cancer therapy that could one day eliminate conventional chemotherapy as we know it.
Chemotherapy, as it is currently practiced, involves delivering powerful cancer-fighting drugs intravenously to the site of a tumor. While this type of treatment can reduce or even eliminate a tumor, it also wreaks havoc on surrounding healthy tissue. This makes cancer patients ill and weak. Conventional chemotherapy is like World War II era carpet bombing: a powerful attack but with a lot of collateral damage remaining.
Targeted drugs are more like smart bombs. A recent research project describes a new treatment that uses the tumors own genetic sequence to attack it. Researchers sequenced 10 genes in lung cancer patients and in two thirds of them found the “on switch” that causes cancers to manifest and grow. The new drug, an oral medication that is selected according to the results of the genetic sequencing of the tumors, turns that switch to “off,” keeping the cancer under control for a significant period of time.
Targeted drugs that attack the genetic “on switch” for cancer do not currently represent a cure for cancer. What they may do, however, is to turn cancer into a chronic disease, rather than a fatal disease. Although there may still be some adverse health effects, these drugs may keep the cancer from metastasizing, or spreading to other areas of the body, thereby allowing patients to live longer and healthier lives. Targeted drugs may hopefully work for many different types of cancer, and may buy patients enough time to allow real cures to come through the pipeline.
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