Close to 90 percent of patients with unresectable (inoperable) desmoplastic melanoma, a rare form of skin cancer, saw their cancer improve after treatment with the immunotherapy drug pembrolizumab in a recent clinical trial. These results from the S1512 trial are being delivered in an oral presentation at the clinical trials plenary session of the 2023 annual meeting of the American Association for Cancer Research (AACR) in Orlando, Florida, on April 16th.