View clinical trials related to MSS.
Filter by:Fluorouracil and oxaliplatin-based combined with molecular targeted drugs are still the main treatment strategies for patients with advanced metastatic colorectal cancer (mCRC). Multiple studies have confirmed that anti-PD-1 combined chemotherapy regimens can bring better survival benefits to patients with advanced mCRC. Slulimab is a humanized IgG4 monoclonal antibody with clear anti-tumor efficacy and easy management of adverse reactions. Therefore, the main purpose of this study is to explore the effectiveness of chemotherapy and bevacizumab induction therapy combined with PD-1 monoclonal antibody in the first-line treatment of MSS-type initial unresectable mCRC.
This is a non-profit phase II, open, clinical study of the combination of irinotecan plus cetuximab and envafolimab as a rechallenge regimen, in pre-treated RAS/BRAF wild type metastatic colorectal cancer patients (according to liquid biopsy at baseline). Patients have been treated in front lines with irinotecan and cetuximab and had a clinical benefit (complete or partial response) from both of them, no matter whether they had treated by any PD-1 inhibitor before.
Hepatic arterial infuison chemothearpy (HAIC), targeted therapy, and programmed death-1 (PD-1) inhibitors have been demonstrated to be effective for colorectal cancer liver metastasis (CRCLM). Thus, the investigators will conduct a prospective trial to explore the efficacy and safety of targeted treatment based on ctDNA genotyping combined with tislelizumab and HAIC as salvage treatment for advanced CRCLM failed from standard systemic treatment, aiming to provide individualized optimized regimen for microsatellite stable (MSS) CRCLM in salvage treatment.
Research has found that patients with microsatellite instability (dMMR/MSI-H) type colorectal cancer can achieve long-term survival through immune checkpoint inhibitors (ICIs) treatment, but currently accounting for about 95% of MSS type mCRC, the benefits from immune checkpoint inhibitors are very limited. REGONIVO is a Phase Ib study to explore the efficacy and safety of regorafenib in combination with nivolumab in the treatment of gastric cancer and colorectal cancer with MSS. The study enrolled 50 patients with advanced disease, including 25 cases of gastric cancer, 25 cases of colorectal cancer, except for one case of colorectal cancer with MSI-H, and others were MSS type. The results of the study showed that patients with colorectal cancer had an objective response rate (ORR) of 36%.The ORR of liver matestasis vs. lung matestasis is 8.7% vs. 50%. In this study, pMMR /MSS type patients with refractory advanced colorectal cancer without liver metastasis were selected as the subjects. Regorafenib, Toripalimab and Celecoxib were used to evaluate the maximum tolerable dose, objective response rate (ORR), total survival time (OS), progression free survival time (PFS), disease control rate (DCR), response duration (DoR) and safety of the subjects.
This is a single arm, open-label, prospective clinical trial to evaluate the combination of neoadjuvant short-course radiotherapy and toripalimab (PD-1 antibody) for locally advanced rectal cancer (LARC) patients with high risk factors. A total of 53patients will be enrolled in this trial to receive 5*5Gy short-course radiotherapy, followed by 4 cycles of CAPOX chemotherapy and PD-1 antibody. Then they will receive the TME surgery and another 2 cycles of CAPOX chemotherapy. The primary end point is the rate of pathological complete response (pCR). The long-term prognosis and adverse effects will also be evaluated and analyzed.
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.
This is an open-label, Phase 2 clinical trial evaluating therapy with an oncolytic immunotherapy (RP2 or RP3) in combination with atezolizumab and bevacizumab in patients with advanced Microsatellite Stable and Mismatch Repair Proficient Colorectal Carcinoma.
Colorectal cancer of Mismatch Repair-proficient (pMMR)/ Microsatellite Stability (MSS) accounts for approximately 85% of all colorectal cancer patients, which might be insensitive to immunotherapy. Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Chemotherapy, such as CAPEOX regimen, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Celecoxib, a COX-2 inhibitor, can improve the immune microenvironment and have a potential to synergy with immunotherapy. Chemotherapy can improve the immunogenicity of cancer cells that might enhance the efficacy of immunotherapy. The aim of this study is to explore whether chemotherapy and cyclooxygenase (COX) inhibitors combined with anti-PD-1 monoclonal antibody (mAb) could improve efficacy for resectable colorectal cancer patient with the pMMR/MSS phenotype.
The main objective of the SIRTCI study is to evaluate the safety and efficacy of the combination chemotherapy (XELOX: Capecitabine plus oxaliplatin), anti-angiogenic (Bevacizumab), SIRT (TheraSphere®) and ICI (Atezolizumab) in patients with CRC with predominant liver metastases. SIRTCI is a single-arm, prospective, multi-centre phase II study. The main inclusion criteria are patients with MSS mRCC with predominantly non-operable liver metastases and measurable disease. Patients with extra-hepatic metastases can be included since the objective of the study is to induce local and abscopal effects of radiotherapy combined with ICI by stimulating the anti-tumour immune response to destroy both hepatic and extra-hepatic metastases.
This is a single-arm,open-label, prospective, single-center Study of QL1101 and JS001 in patients with pMMR/MSS refractory metastatic colorectal cancer. QL1101 is a biosimilar of bevacizumab (Avastin) produced and provided by Qilu Pharmaceutical Co., Ltd., which has been marketed in China.It's a humanized monoclonal IgG1 antibody prepared by recombinant DNA technology. By binding to human vascular endothelial growth factor (VEGF), it inhibits the binding of VEGF to its receptor, blocks the signal transduction pathway of angiogenesis, and inhibits tumor cell growth. Be produced and provided by Shanghai Junshi Bioscience Co., Ltd. ,JS001(Tripleitriumab) is the first China-developed humanized monoclonal antibody against programmed death 1 (PD-1) approved for marketing in China. Antiangiogenic drugs combined with PD-1 monoclonal antibodies may reverse the insensitivity of pMMR/MSS refractory colorectal cancer to PD-1 inhibitors. The primary objective of this study is to investigate the safety and efficacy of the subjects who given the combination therapy.