Peritoneal metastasis from pancreatic cancer treated with pressurized intraperitoneal aerosol chemotherapy (PIPAC)

Abstract

Patients with peritoneal metastasis (PM) from pancreatic cancer have a short life expectancy. Systemic combination chemotherapy leads to a median overall survival of 7–8 months. Pressurized IntraPeritoneal Aerosol Chemotherapy (PIPAC) is a treatment alternative, where studies in patients with PM from ovarian, gastric and colorectal cancer show a high safety profile and interesting results. This case study report data on the PIPAC treatment in patients with PM from pancreatic cancer. In a standard laparoscopy, chemotherapeutics (cisplatin and doxorubicin) are nebulized within the peritoneal cavity. After 30 min, the chemotherapeutics are evacuated through a closed system. The PIPAC procedure is repeated every 4–6 weeks. Five patients with PM from pancreatic cancer were treated with a total of 16 PIPAC procedures. All patients received >1 PIPAC and were eligible for evaluation of histological regression. Four patients demonstrated histological regression, and one patient had stable disease. Three patients are still alive, and the median overall survival is 14 months (range 10–20) since the diagnosis of PM. The histological regression and survival figures in this pilot study suggest activity of PIPAC with low-dose cisplatin and doxorubicin in pretreated peritoneal metastasis of pancreatic origin. This should now be evaluated in prospective studies.

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