Colorectal Neoplasms Malignant

This study aims to develop a highly sensitive, specific, and cost-effective blood assay for early detection of colorectal adenomas and cancer, using advanced machine learning and state-of-the-art biological analyses.

Colorectal cancer (CRC) is the third most common cancer worldwide. Surgical resection is one of the primary treatment options for CRC; however, postoperative recurrence remains a significant clinical challenge for both the medical community and patients. Postoperative chemotherapy, as an important adjuvant therapy, is widely used in CRC patients aiming to reduce the risk of recurrence. Despite extensive research on the efficacy of postoperative chemotherapy in CRC, the mechanisms of postoperative recurrence, predictive factors, and strategies to enhance chemotherapy effectiveness remain unclear. For colorectal cancer patients who have achieved NED (No Evidence of Disease), the decision to either reinitiate or change the systemic chemotherapy regimen for newly developed pulmonary oligometastases remains controversial. Local treatment options for diagnosing oligometastases include surgery, radiotherapy, and radiofrequency ablation. However, whether systemic treatment should be added after local treatment in patients who have achieved NED remains uncertain , and this issue requires urgent resolution.

Colorectal cancer (CRC) once predominantly affected older individuals, but in recent years has witnessed a progressive increase in incidence among young adults. Once rare, early-onset colorectal cancer (EOCRC, that is, a CRC diagnosed before the age of 50) now constitutes 10-15% of all newly diagnosed CRC cases and it stands as the first cause of cancer-related death in young men and the second for young women. This study aims to detect EOCRC with a non-invasive test, using a blood-based molecular assay based on microRNA (ribonucleic acid)

The goal of this study is to develop a blood-test which can detect colorectal cancer in early stages. Participants will be asked to take an extra blood test, which will be analyzed further in the lab.

The SYLMET Trial is a randomized trial to compare simultaneous and two-staged resection of primary colorectal and synchronous liver metastases. This is an investigator-initiated, multicentre, randomized controlled trial to assess complications (primary endpoint), survival, cost-effectiveness, and quality of life (secondary endpoints).This trial will include patients with resectable primary tumour in the colon or upper rectum with less than five liver metastases that is possible to treat with surgical resection and/or ablation (RFA/MWA) at time of evaluation.

The goal of this clinical trial is to investigate the effectiveness of localized interventions in improving the 5-year survival rate for colorectal cancer patients with ≥10 liver metastases. We aim to answer the following question: Can localized interventions, including surgery and/or ablation and/or stereotactic body radiotherapy (SBRT), enhance the 5-year survival rate compared to palliative chemotherapy alone in patients with ≥10 colorectal liver metastases (CRLM)? Participants in this study, who have achieved disease control through chemotherapy, will undergo either localized interventions (surgery and/or ablation and/or SBRT) or receive palliative chemotherapy alone. Researchers will compare the survival outcomes between these groups to determine the potential benefits of localized interventions for patients with ≥10 CRLM.

To observe and evaluate the efficacy and safety of irinotecan liposome (II) combined with 5-fluorouracil(5-FU), calcium leucovorin(LV), and bevacizumab in the treatment of metastatic colorectal cancer.

The purpose of this observational study is to understand the effect of gut microbiota on the efficacy of immunotherapy in patients with metastatic colorectal cancer and to explore the specific mechanisms of this process. In this way, it provides new ideas for the clinical treatment of colorectal cancer.

Robotic right hemicolectomy with intra-corporeal anastomosis may have better short-term recovery outcomes and decreased incidence of incisional hernia when compared to the laparoscopic actual standard of care, for similar safety outcomes.

The study attempts to quantify the relative risks for mortality, anastomotic leakage and other early and late postoperative complications, recurrence rate, cancer-specific survival, recurrence-free survival after colorectal surgery for patients with colorectal cancer depending on the localization of the tumor.

Exploring the effect of protective ileostomy compared with transverse colostomy on the occurrence of complications, the occurrence of serious side effects of adjuvant chemotherapy and disease recurrence in patients with low rectal cancer after radical surgery from the perspective of intestinal microecology.

In left-sided colon and rectal cancer, the occurrence of synchronous para-aortic lymph node metastasis is rare, with the incidence of being approximate 1-2%. Currently, there has been no standard treatment strategy for this situation. The present trial is designed to evaluate the safety and efficacy of para-aortic lymph node dissection for left-sided colon and rectal cancer with synchronous para-aortic lymph node metastasis