An experimental cancer drug Dostarlimab is giving a new ray of hope for cancer patients. In a preliminary drug trial, the molecule was found to be 100% effective in treating patients. In all 18 patients who were registered for the t rial, it was found that their tumour disappeared after a 6-month course of the medicine. The trial was held at the Memorial Sloan Kettering (MSK) Cancer Centre in New York on patients suffering from colorectal cancer. The cancer disappeared completely in all patients without the need of radiation, surgery, or chemotherapy, the usual treatment methods in cancer. All the patients have been free from cancer for the past 2 years after the treatment.