TAS102 in Combination With NAL-IRI in Advanced GI Cancers

Inclusion Criteria: * Subjects must have histologic or cytological confirmation of a malignancy that is advanced (metastatic and/or unresectable) with measurable disease per Response Evaluation Criteria in Solid Tumors (RECIST) version (v)1.1; acquisition of existing formalin fixed paraffin embedded (FFPE) tumor tissue by study investigators is not mandatory for enrollment on the trial; patients without previous histologic/cytologic confirmation must have freshly obtained biopsy for routine pathologic evaluation before enrolment on the study * In the dose escalation phase, the trial will be open for patients with stage IV or locally advanced unresectable gastrointestinal adenocarcinomas (gastric, cholangiocarcinoma, pancreatic, colorectal) who have failed at least one prior therapy; subjects must have received, and then progressed or been intolerant to, at least 1 standard treatment regimen in the advanced or metastatic setting * In the dose expansion phase, Arm A will be open for 25 patients with pancreatic adenocarcinoma; patients must have histologic diagnosis and either locally advanced unresectable or metastatic disease and have not received prior irinotecan; patients must have received at least one prior line of standard treatment for locally advanced or metastatic disease * In dose expansion phase, Arm B will be open for 25 patients with colorectal adenocarcinoma; patients must have histologic diagnosis and metastatic disease and have not received prior irinotecan; pa…