Active clinical trials for "Rectal Neoplasms"

The study evaluates the combination of immunotherapy of PD-1 antibody and neoadjuvant short-course radiotherapy in early low rectal cancer. A total of 34 patients will receive 5*5Gy short-course radiotherapy, followed by 4 cycles of capecitabine plus oxaliplatin (CAPOX) chemotherapy and PD-1 antibody, finally receive the local excision(TEM) or total mesorectal excision (TME). The rate of complete response (CR, pCR + sustained cCR for ≥ 1 year), Organ retention rate, long-term prognosis, and adverse effects will be analyzed.

Whether to perform radical TME or salvage chemoradiotherapy after local resection of intermediate-risk T1 rectal cancer is still controversial. A study based on the National Cancer Data Center showed that, because of the need for organ preservation, rescue chemoradiotherapy after local resection of rectal cancer was used in 10% of patients with T1N0 tumors and in 40% of patients with T2N0 tumors. However, the local recurrence caused by non-TME surgery is still the focus of concern for clinicians and patients. Previous retrospective studies have shown that there is no significant difference in overall survival and disease free survival between salvage CRT group and salvage TME group for patients with early rectal cancer after local resection. Pathological pT2 after local resection is the only independent risk factor for disease-free survival. However, limited to a single center and small sample size, the recurrence caused by salvage radiotherapy and chemotherapy should still be alert. Given these concerns, there is an urgent need to identify a better treatment regimen that can ensure reliable oncologic outcomes after local resection. Therefore, with TME as the control group and salvage chemoradiotherapy as the experimental group, we conducted a prospective, randomized, multicenter, non-inferiority clinical trial of the treatment effect of patients with intermediate-risk T1 and clinical stage N0M0 rectal cancer after local resection, to provide high-level evidence-based medical evidence for the final choice of these two salvage treatment methods.

This is an open-label, prospective, multicenter phase II clinical trial to evaluate modified short-course radiation (Radiation targeting the tumor bed without irradiating surrounding tumor-draining lymph nodes) combined with CAPOX and PD-1 Inhibitor (Tislelizumab) for patients with MSS middle and low rectal cancer. A total of 32 patients will be enrolled in this trial. The primary endpoint is the rate of pathological complete response (pCR). The organ preservation rate, tumor regression grade, long-term prognosis, and adverse effects will also be analyzed.

A multicenter single-arm phase 2 study to evaluate safety and efficacy of the total neoadjuvant therapy of short course radiation therapy followed by neoadjuvant oxaliplatin/fluorouracil-based chemotherapy (CAPOX) for cT2 rectal cancer

This is an open-label, single-arm study to investigate the efficacy and safety of AK104 (an Anti-PD1 and Anti-CTLA4 Bispecific Antibody) and neoadjuvant chemoradiotherapy in patients with pMMR/MSS locally advanced rectal cancer.

immunotherapy，gastric cancer，rectal cancer，biomark

This study will evaluate the efficacy and safety of SHR-1701 combined with radiotherapy and chemotherapy as perioperative treatment for locally advanced rectal cancer. Eligible patients will receive standard chemoradiation with SHR-1701 followed by XELOX combined with SHR-1701. In all subjects, restaging pelvic MRI with chest and abdominal CT will be performed after completion of neoadjuvant treatment to determine resectability and to rule out any evidence of metastases. Subjects who have resectable disease will undergo surgery. Adjuvant XELOX combined with SHR-1701 will be given after surgery.

In this Phase 2 study, we will conduct an efficacy and safety study of the combination of investigational drug BMX-001, with short-course radiotherapy (SCRT) or long-course chemoradiotherapy (LCCRT) as part of total neoadjuvant therapy in newly diagnosed rectal adenocarcinoma (RAC) patients.

The aim of the ShorTrip trail is to evaluate the activity and the safety of total neoadjuvant strategy with FOLFOXIRI as consolidation therapy preceded by short-course radiotherapy and followed by surgery in LARC patients.

One of the ways that cancer grows and spreads is by avoiding the immune system.NK cells are immune cells that kill cancer cells, but are often malfunctioning in people with colorectal cancer and blood cancers. A safe way to give people with colorectal cancer and blood cancers fresh NK cells from a healthy donor has recently been discovered. The purpose of this study is to show that using two medicines (vactosertib and IL-2) with NK cells will be safe and will activate the donor NK cells. NK cells and vactosertib are experimental because they are not approved by the Food and Drug Administration (FDA). IL-2 (Proleukin®) has been approved by the FDA for treating other cancers, but the doses used in this study are lower than the approved doses and it is not approved to treat colorectal cancer or blood cancers.