Clinical trial results show that PD-1 inhibitors offer improved survival and a better safety profile compared to standard, single-agent chemotherapy for recurrent or metastatic squamous cell carcinoma of the head and neck. However, because of their mechanism of action as immunotherapy, patients receiving the agents may experience immune-related adverse events (irAEs).
One in nine men will be diagnosed with prostate cancer, the second leading cause of death in men in the United States. Survival varies greatly depending on the disease’s severity and extent at diagnosis: five-year survival rates are near 100% for local or regional disease, but they drop to 30% for metastatic prostate cancer.
Entrectinib was approved by the U.S. Food and Drug Administration in August 2019 as the third tumor-agnostic cancer drug, meaning it targets a specific mutation of the cancer, not the organ of origin. The other two currently approved tumor-agnostic drugs are larotrectinib and pembrolizumab.
Cancer occurs from mutations, or harmful changes from an alteration in a gene’s DNA sequence. Most mutations involve changes in the order of the base pairs, including substitutions, deletions, additions, or shifts. Mutations can be divided into broad categories based on the tissue where they occur.