Neoadjuvant Therapy, Rectal Cancer
Conditions
Brief summary
This is a prospective study of expression profiling-based assessment of the efficacy of neoadjuvant therapy for rectal cancer.
Interventions
None listed
Sponsors
Study design
Eligibility
Inclusion criteria
* Age ≥18 years, male or infertile female * Patients with rectal adenocarcinoma diagnosed by colonoscopic biopsy * Neoadjuvant therapy according to guideline recommendations * Endoscopic biopsy with access to biopsy tissue for subsequent RNA-seq testing * Patients who do not have a combination of primary malignant tumors elsewhere. * Patients who understand the purpose of the trial, participate voluntarily and sign an informed consent form.
Exclusion criteria
* Samples are not collected, stored, or processed in accordance with specified requirements * Sample does not meet the requirements for subsequent RNA-seq testing * Cases enrolled with a subsequent diagnosis other than rectal adenocarcinoma. * The patient refuses or is unable to complete the entire neoadjuvant treatment * Lack of post-neoadjuvant imaging results and lack of routine postoperative pathology results. * Other patients who, in the judgment of the investigator, do not meet the enrollment requirements
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Objective Response Rate | From the start of the neoadjuvant therapy until just before surgery | The proportion of patients with a complete response or partial response to treatment according to Response Evaluation Criteria in Solid Tumors (RECIST) |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Overall survival | 3 years | The time from the start of treatment to death due to any cause. |
| Progression free survival | 3 years | The period from the date of beginning treatment until the date of disease progression or death from any cause |
| Total resection rate | One month after surgery | Surgically removed tissue without residual cancer cells |