Mismatch repair cancer syndrome

This study tests whether giving immunotherapy drugs (nivolumab with or without ipilimumab) or immunotherapy plus radiotherapy before surgery can improve outcomes for people with a specific genetic type of colorectal cancer called MSI-H/dMMR. About 114 participants will be randoml…

This early-phase study tests whether combining focused ultrasound with the immunotherapy drug pembrolizumab is safe and feasible for people with recurrent glioblastoma, a severe brain cancer. Only 8 participants with a specific genetic feature (mismatch repair deficiency) will be…

This study tests two immunotherapy drugs (iparomlimab and tuvonralimab) in 30 women with a specific type of endometrial cancer that is mismatch repair-deficient. The goal is to see if the treatment can make the cancer disappear or shrink enough to avoid surgery. Participants must…

This phase 2 trial tests two different drug combinations given before surgery for people with a specific type of stomach cancer (dMMR/MSI-H). Participants will receive the immunotherapy drug adebrelimab plus either chemotherapy or another immunotherapy drug (SHR-8068). The goal i…

This phase 2 trial will test a combination of immunotherapy drugs and chemotherapy given before surgery for people with a specific genetic subtype of stomach cancer (dMMR/MSI-H). The study aims to see how well this approach clears the tumor and to understand why some patients do …

This study tests whether annual liquid biopsies (from blood, urine, stool, and vaginal swabs) can safely replace colonoscopies every 18 months for people with Lynch syndrome. 2,000 participants will be split into two groups: one gets standard care (colonoscopy every 18 months), t…

This study looks at whether a tumor's DNA repair status (MMR) changes how well the presence of cancer cells in lymph vessels predicts spread to lymph nodes in stomach cancer. Researchers will review medical records of 3,000 patients who had surgery. The goal is to improve risk as…