Study to Evaluate the Use of Capecitabine in Monotherapy and in Combination With Oxaliplatin in Elderly Patients as Adjuvant Chemotherapy for Locally Advanced Colorectal Cancer.

All patients with locally advanced colorectal cancer after radical surgical intervention who have not previously received systemic antitumor treatment will be randomized into two groups receiving fluoropyrimidines in mono-regimen and in combination with oxaliplatin. Main objectives: * to compare the 3-year disease-free survival and 5-year overall survival rates in the two groups. * to identify, through a comprehensive geriatric assessment among elderly patients, the groups that benefit most from adjuvant chemotherapy. Patients will be treated until progression of the process is detected or the maximum effect of therapy is reached (the longest duration of treatment is 6 months).

NCT Number	NCT06888843
Lead Sponsor	Nizhny Novgorod Regional Clinical Oncology Center
Conditions	Colorectal Cancer
Enrollment	160 participants
Start Date	2025-02-01
Primary Completion	2028-02-01 (estimated)
Study Completion	2028-02-01 (estimated)
Updated on ClinicalTrials.gov	2025-03-27