Active clinical trials for "Rectal Neoplasms"

Our preliminary work demonstrates that there is buy-in from both patients and surgeons with regards to early ileostomy closure (EIC) for select rectal cancer patients undergoing restorative proctectomy (RP) and diverting loop ileostomy (DLI). The feedback from leaders in Europe further supports the need for a large scale randomized-controlled trial (RCT) on this subject in North America. Should the results of such a study be favourable, we believe it could support a change in practice that would be beneficial to patients and the health care system alike. Furthermore, our work will help identify which patients and practices are suitable for EIC. The goal of our project is to determine whether EIC in rectal cancer patients undergoing RP with a DLI is safe, feasible and beneficial in a North American population. Specifically, our primary objective is to compare the severity of complications between patients undergoing EIC versus traditional (late) closure. Our secondary objectives include assessing the difference in quality of life (QoL), early and late bowel function, and cost of care between these two groups.

This prospective, randomized, phase 2 study is conducted to evaluate the efficacy and safety of first line mCapOX plus cetuximab versus mFOLFOX6 plus cetuximab for metastatic left-sided CRC patients with wild-type RAS and BRAF genes.

To compare the pathological effect between 2 cycles and 4 cycles of Capox regimen as neoadjuvant chemotherapy for low/ intermediate risk stage II/III rectal cancer.

The study is a multicenter, open-label, randomized controlled clinical study, and the purpose of the study is to compare the pathological complete response rate (PCR) of patients with locally advanced rectal cancer treated with short-term radiotherapy, sequential Camrelizumab and CAPOX (group A) to long-term concurrent chemoradiotherapy, sequential CAPOX (group B) in patients with LARC. A total of 230 patients were included in this study.

The purpose of this study is to asses the safety and efficacy of early stoma closure (2-3 weeks after total mesorectal excision) vs late closure (16-24 weeks after mesorectal excision).

To evaluate the safety and preliminary efficacy of Preoperative ChemoRadiation and FOLFOXIRI and to Escalate Complete Response for Rectal Cancer patients.Go through laboratory and medical tests to verify eligibility to enter the study, receive the experimental combination of drugs (chemoradiation (capecitabine and radiation) + FOLFOXIRI (Oxaliplatin, leucovorin, irinotecan, and fluorouracil) prior to surgery and undergo laboratory tests and study procedures on specified days during the study period, complete end of study evaluations and tests, and participate in post-study follow up every three months for three to four years. The time in the study will take approximately four to six hours during pre-study, study and end of study visits.

Comparative analysis of the clinical efficacy between primary Total Mesorectal Excision (TME) surgery and neoadjuvant chemotherapy combined with TME surgery for low-risk locally advanced rectal cancer. Randomly enrolling eligible patients into either the control group receiving neoadjuvant chemotherapy combined with TME surgery or the experimental group receiving primary TME surgery, and subsequently comparing the clinical outcomes of the two groups

This is a two-arm, open label, randomized phase II clinical study. The aim is to evaluate the safety and efficacy of Cadonilimab (a PD-1/CTLA-4 bispecific antibody) combined with XELOX regimen in pMMR locally advanced rectal cancer during the perioperative period. Eligible patients will receive either Cadonilimab plus XELOX or XELOX alone for 4 cycles before and 4 cycles after surgery. The primary endpoint is the pathological complete response rate.

Rectal cancer is one of the common malignant tumors of the digestive tract. Some patients with rectal cancer are already advanced tumors when they are first diagnosed. At this time, the tumor has local infiltration, the probability of recurrence and metastasis after surgical resection is high, and even radical tumor resection cannot be performed. Neoadjuvant chemotherapy and radiotherapy have become one of the important treatment methods for these patients to increase the rate of radical tumor resection. However, a series of side effects of neoadjuvant radiotherapy can even continue after the end of radiotherapy, and even increase the incidence of postoperative complications. Superselective arterial interventional chemotherapy has been widely used in preoperative neoadjuvant chemotherapy for various tumors, and its efficacy in rectal cancer has also been confirmed. In addition, as a hot spot in tumor treatment, tumor immunotherapy has shown exciting effects in the NICHE study of neoadjuvant immunotherapy before colon cancer surgery. Moreover, Oxaliplatin is a classic chemotherapeutic drug that induces Immunogenic cell death effects, which induce antitumor immunity. Therefore, in order to optimize the preoperative neoadjuvant therapy plan, the investigators propose a treatment method of superselective arterial chemoembolization combined with immunotherapy and systemic chemotherapy, in order to obtain better preoperative conversion therapy effect and reduce the adverse reactions of neoadjuvant therapy.

The purpose of this research study is to find out how safe and effective is treating patients with locally advanced rectal cancer (LARC) with chemotherapy first and then follow with radiation therapy to a higher dose than what is usually delivered and see if patients could have complete response and be spared from surgery.