OHSU Knight Cancer Institute

IRB #

STUDY00022198

Title

The Gastrointestinal Cancer Observational Study (GICOS)

Principal Investigator

Adel Kardosh

Study Purpose

This is an observational study of individuals with suspected or confirmed gastrointestinal cancer. The purpose of this study is to look at these individuals to understand gastrointestinal cancer and develop new and better ways to treat this disease.

Medical Condition(s)

Esophageal cancer, gastric cancer, colon cancer, rectal cancer, appendix cancer, anal cancer, hepatocellular cancer, biliary cancer, pancreatic cancer, GI neuroendocrine tumors [NET], and GI stromal tumors [GISTs]).

Eligibility Criteria

- Individuals aged 18 years or older,
- Suspected or confirmed diagnosis of one of the following gastrointestinal cancers:
*esophageal cancer,
*gastric cancer,
*colorectal cancer,
*appendix cancer,
*anal cancer,
*hepatocellular cancer,
*biliary cancer,
*pancreatic cancer,
*GI neuroendocrine tumors [NET],
*GI stromal tumors [GISTs]).

Age Range

18 - 99

Healthy Volunteers Needed

No

Duration of Participation

Participants will be followed for as long the study remains active.

Minors Included

No

Contact

Knight Cancer Institute Clinical Trials
GIResearch@ohsu.edu
503 494 -1080

Sponsor

Recruitment End

01/31/2026

Compensation Provided

No