To remove toxic chemotherapy drugs, researchers propose that a biocompatible, copolymer-coated absorber tube could be placed via catheter into the main vein downstream of a tumor-afflicted organ, such as the hepatic vein draining the liver. The chemotherapeutic drug would then be infused immediately upstream of the organ and excess drug flowing out would bind to the absorber, which would be removed from the vein shortly after the treatment was complete. The depicted setup (with organ and tumor) has not yet been tested.
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