What Is Liver-Directed High Dose Chemotherapy?
Liver-directed high dose chemotherapy evolved from a highly invasive open surgical procedure to a minimally invasive procedure known as percutaneous hepatic perfusion (PHP). During PHP, three catheters are placed percutaneously through standard interventional radiology techniques. The liver is temporarily isolated from the body’s circulatory system, during which time a 30 minute infusion of the chemotherapeutic agent melphalan hydrochloride directly to the liver occurs. The blood is collected as it exits the liver for filtration by proprietary filters prior to returning it to the patient.
In the United States, Delcath’s system for PHP has been evaluated in a Phase 3 trial for patients with unresectable ocular and cutaneous liver metastases. Additional cancers including colorectal cancer, neuroendocrine tumors and in patients with hepatocellular carcinoma (primary liver cancer) have been studied. These studies are presently being evaluated by the FDA.