Delcath Systems, Inc. is an interventional oncology company focused on the treatment of primary and metastatic liver cancers. The Company's proprietary products, HEPZATO KIT (HEPZATO (melphalan) for Injection/Hepatic Delivery System) and CHEMOSAT Hepatic Delivery System for Melphalan percutaneous hepatic perfusion (PHP), are designed to administer high-dose chemotherapy to the liver while controlling systemic exposure and associated side effects during a PHP procedure. HEPZATOTM KIT is a drug/device combination product. HEPZATO KIT is comprised of the chemotherapeutic drug melphalan and the Company’s proprietary Hepatic Delivery System (HDS). In Europe, the device-only configuration of the HDS is regulated as a Class III medical device and is approved for sale under the trade name CHEMOSAT Hepatic Delivery System for Melphalan. In the United States, HEPZATO is regulated as a drug by the United States Food and Drug Administration (FDA).