Hospital Ruber International provides HIPEC (Hyperthermic Intraperitoneal Chemotherapy) using contemporary cytoreductive surgery and evidence-based oncology care. Founded in 1982, the ISO accredited hospital is based in Madrid, Spain, with 345 beds and services for domestic and international patients.

The treatment combines extensive tumour removal with the direct delivery of heated chemotherapy into the abdomen. Heating the chemotherapy and administering it locally allows high drug concentrations to reach the abdominal surfaces. Before treatment, specialists assess tumour origin, disease spread, resectability, imaging findings, and the patient's overall health to determine suitability.