ObjectiveTo describe the constructive process of neoadjuvant therapy for colorectal cancer part in the West China Colorectal Cancer Database (DACCA).MethodWe used the form of text description.ResultsThe specific concept of neoadjuvant therapy for colorectal cancer including neoadjuvant treatment therapies, compliance of patients with neoadjuvant therapy, neoadjuvant therapy intensity scheme, the CEA value of patients during neoadjuvant therapy, changes of symptoms, changes of primary tumor size in colorectal cancer, and TRG grading of the DACCA in the West China Hospital were defined. Then the neoadjuvant therapies were detailed for their definition, label, structure, error correction, and update.ConclusionThrough detailed description and specification of neoadjuvant therapy for colorectal cancer in DACCA in West China Hospital, it can provide a reference for the standardized treatment of colorectal cancer and also provide experiences for the peers who wish to build a colorectal cancer database.
