Slide 3
Am I eligible for the MOUNTAINEER Study?

Who is this Clinical Study For?

The MOUNTAINEER study is for:

  • People who are 18 years or older
  • People with HER2+ colorectal cancer that cannot be completely removed with surgery or has spread to other parts of the body
  • People with RAS wild-type in primary tumor or tumor that has spread to other parts of the body
  • People must have a positive HER2 result from a tumor sample. This sample can be from any time before joining the study.
  • People who have already been treated with flouropyrimidines, oxaliplatin, irinotecan, and anti-VEGF antibodies
  • People who have not already been treated with an anti-HER2 therapy before

There are additional eligibility requirements for this study. Contact your doctor if you are unsure of your eligibility. You can also contact a study doctor who will review the criteria with you and help determine your eligibility.

Click Here to Check Eligibility

For more information on the MOUNTAINEER study, please contact the Seagen Trial Information Support at 866-333-7436 or You can also visit