This research study is evaluating how patient-reported outcomes (e.g. symptoms, quality of life) and biomarkers compare to standard of care clinical assessments such as imaging and tumor markers in predicting the clinical outcomes (e.g. disease progression and survival) in patient populations with colorectal, pancreatobiliary, or esophagogastric cancer that are receiving anti-cancer therapy Massachusetts General Hospital Cancer Center
* Patient reported outcomes will be collected through a series of self-administered questionnaires and blood draws will be used to obtain bio and tumor marker information.
* Information will also be collected from the participants electronic medical record.
* Tissue may be obtained for next-generation sequencing.
* The study will conclude after participants are no longer receiving anti-cancer therapies.
* It is expected that about 200 people will take part in this research study
