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VX15/2503 and Immunotherapy in Resectable Pancreatic and Colorectal Cancer

ABSTRACT: This randomized phase I trial studies how well anti-semaphorin 4D (anti-SEMA4D) monoclonal antibody VX15/2503 with or without ipilimumab or nivolumab work in treating patients with stage I-III pancreatic cancer that can be removed by surgery or stage IV colorectal cancer that has spread to the liver and can be removed by surgery. Monoclonal antibodies, such as anti-SEMA4D monoclonal antibody VX15/2503, ipilimumab, and nivolumab, may interfere with the ability of tumor cells to grow and spread.

DISEASE(S): Adenocarcinoma,Stage Ii Pancreatic Cancer,Colorectal Adenocarcinoma,Pancreatic Adenocarcinoma,Carcinoma,Stage Iib Pancreatic Cancer,Stage Iii Pancreatic Cancer,Stage Ib Pancreatic Cancer,Colon Carcinoma Metastatic In The Liver,Stage Iv Colorectal Cancer,Stage Iia Pancreatic Cancer,Resectable Pancreatic Carcinoma,Stage I Pancreatic Cancer,Stage Iva Colorectal Cancer,Colorectal Neoplasms,Stage Ivb Colorectal Cancer,Stage Ia Pancreatic Cancer,Pancreatic Neoplasms

PROVIDER: 2261270 | ecrin-mdr-crc |

REPOSITORIES: ECRIN MDR

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Project description:KEYNOTE-177 is currently the only randomized controlled phase III clinical trial evaluating the efficacy and safety of pembrolizumab versus standard chemotherapy combined with targeted first-line therapy for dMMR/MSI-H metastatic colorectal cancer. The study was conducted at 192 centers in 23 countries and enrolled a total of 307 subjects. The results of the study showed that the median PFS of pembrolizumab was 16.5 months, which was double the 8.2 months in the chemotherapy group (HR 0.60; 95% CI: 0.45-0.80; P = 0.0002). In addition, the ORR was 45.1% in the pembrolizumab group and 33.1% in the chemotherapy group, and a higher percentage of patients achieving a complete remission (CR) with pembrolizumab than in the chemotherapy group (13.1% vs. 3.9%). The U.S. FDA approved pembrolizumab in June 2020 for the first-line treatment of MSI-H/dMMR metastatic colorectal cancer. The results of the KEYNOTE-177 study showed that 29% of patients with dMMR/MSI-H metastatic colorectal cancer experienced direct disease progression (PD) after first-line pembrolizumab monotherapy. This may suggest that some dMMR/MSI-H patients have primary resistance to anti-PD-1 monotherapy. In the first-line treatment cohort of the CheckMate 142 study using nivolumab combined with ipilimumab, the proportion of patients with direct PD was 13%, suggesting that the combination of PD-1 inhibitors and anti-CTLA-4 mAb may have help overcome this primary resistance. In addition, in the second-line and above cohort of the CheckMate142 study, 12% of patients receiving nivolumab in combination with ipilimumab experienced PD directly, compared with 26% of patients receiving nivolumab alone. A study published on 《The Lancet Oncolog》 on the efficacy and safety of ipilimumab monotherapy and ipilimumab combined with anti-PD-1 monoclonal antibody in patients with anti-PD-1 monoclonal antibody-resistant melanoma Retrospective study. The study included 355 patients with unresectable metastatic stage III or IV melanoma who received ipilimumab monotherapy after failure of anti-PD-(L)1 monoclonal antibody (n=162), or Ipilimumab combined with anti-PD-1 therapy (n=193). The ORR was 31% in the combination arm, significantly higher than the 13% in the ipilimumab monotherapy arm. In addition, the median OS and PFS of the combination therapy group were 20.4 months and 3.0 months, respectively, which were also significantly higher than those of the single-agent group of 8.8 months and 2.6 months. The aim of this study was to evaluate the objective response rate (ORR) of Cadonilimab, a bispecific anti-PD-1/CTLA-4 antibody, for PD-1/PD-L1 blockade-refractory, microsatellite instability-high (MSI-H) or mismatch repair-deficient (dMMR), advanced colorectal cancer.

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VX15/2503 and Immunotherapy in Resectable Pancreatic and Colorectal Cancer

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