PS101-mediated ACT With Chemotherapy in Liver Metastases From Cancer of Gastrointestinal Origin

Part 1: This clinical study will first test the safety and initial effect on the tumour of PS101-mediated ACT when given in combination with standard of care chemotherapy in patients with liver metastases (initially those with any solid tumors and then further in patients just with colorectal cancer \[CRC\]) in order to identify the recommended dose and schedule of PS101-mediated ACT that can be taken forward for further testing. Part 2: Based on the Part 1 results, another part in patients with liver metastases from CRC and pancreatic cancer (if indicated) may take place following a substantial protocol amendment. This record will focus on Part 1 of the study only and will be updated if Part 2 occurs.