https://www.nytimes.com/2025/04/27/health/cancer-immunotherapy-solid-tumors.html
“In 49 of the patients, who had rectal cancer, the tumors disappeared and, after five years, have not recurred … 35 of 54 patients who had other cancers, including in the stomach, esophagus, liver, endometrium, urinary tract and prostate. Out of all 103 patients, cancers recurred in only five.”
Only works for mismatch repair mutations that produce weird proteins.