Intraperitoneal Irinotecan Combined With Systemic Therapy for Patients With Gastric Peritoneal Metastases: A Phase II, Multicenter Study
This is a phase II study conducted in three hospitals in the Netherlands (Erasmus MC in Rotterdam, Catharina Hospital in Eindhoven, and the Netherlands Cancer Institute in Amsterdam). A total of 55 patients will take part. The aim is to test whether a new combination treatment is feasible for patients with gastric peritoneal metastases (PM). The treatment includes chemotherapy (intraperitoneal irinotecan and standard systemic therapy such as CAPOX or FOLFOX), and may also include nivolumab or trastuzumab, depending on biomarker results.
• Histologically confirmed gastric cancer or gastroesophageal junction adenocarcinoma
• Pathologically and clinically confirmed diagnosis of macroscopic peritoneal metastases (defined as PCI score ≥ 1)
• WHO-performance score of 0 to 1 with a life expectancy greater than or equal to three months
• Aged 18 years or older
• Written informed consent according to the ICH-GCP and national/local regulations