Zanidatamab Before Surgery for the Treatment of HER2 Positive Colon and Rectal Cancer in Patients Planned for Curative Intent Treatment

This phase II trial studies how well giving zanidatamab before surgery (neoadjuvant) works in treating patients with colon and rectal cancer that is human epidermal growth factor receptor 2 positive (HER2+ve) who are planned for curative intent treatment. Zanidatamab is a monoclonal antibody that may interfere with the ability of tumor cells to grow and spread. A monoclonal antibody is a type of protein that can bind to certain targets in the body, such as molecules that cause the body to make an immune response (antigens).

NCT Number	NCT07405476
Lead Sponsor	Emory University Collaborators: National Cancer Institute (NCI)
Conditions	Colon Carcinoma, Colorectal Carcinoma, Rectal Carcinoma, Stage I Colon Cancer AJCC v8, Stage I Colorectal Cancer AJCC v8, Stage I Rectal Cancer AJCC v8, Stage II Colon Cancer AJCC v8, Stage II Colorectal Cancer AJCC v8 +4 more
Enrollment	38 participants
Start Date	2026-04-07
Primary Completion	2028-12-18 (estimated)
Study Completion	2029-12-18 (estimated)
Updated on ClinicalTrials.gov	2026-04-17