Immunotherapy

Immunotherapy
Chicago, IL—The tumor types amenable to immunotherapy with the PD-1 inhibitor pembrolizumab (Keytruda) keep expanding and now include sarcoma, which has been difficult to treat.
The power to fight a virtually infinite array of pathogens is one of the hallmarks of the human immune system, and random diversity is its secret weapon.
Adding the investigational drug indoximod, an indoleamine 2,3-dioxygenase (IDO) pathway inhibitor, to the checkpoint inhibitor pembrolizumab led to higher response rates in patients with advanced melanoma than what is reported with pembrolizumab monotherapy,
The power to fight a virtually infinite array of pathogens is one of the hallmarks of the human immune system, and random diversity is its secret weapon.
Despite remarkable advance in the treatment of cancer through the use of immunotherapy, outcomes still vary, and, for some patients, these regimens provide only a short-term answer.
Despite remarkable advancements in the treatment of cancer through the use of targeted agents and immunotherapy, outcomes are still varied, and, for some patients, these regimens provide only a short-term answer.
The advent of immunotherapy has led to durable clinical responses in a variety of malignancies, but identifying which patients will respond to treatment remains elusive.
Results of a phase 1/2 study that investigated 2 dosing regi­-mens of 2 immunotherapies—the PD-1 inhibitor nivolumab (Opdivo) plus the CTLA-4 inhibitor ipilimumab (Yervoy)—in patients with previously treated metastatic urothelial carcinoma showed higher response rates and longer median overall survival with the regimen of nivolumab 1 mg/kg plus ipilimumab 3 mg/kg than with the dosing of nivolumab 3 mg/kg plus ipilimumab 1 mg/kg.
The relative lack of progress in the treatment of malignant pleural mesothelioma is in marked contrast to developments in the treat­ment of lung cancer overall, but several ongoing studies using different immune-based therapies have shown promise in the treatment of this type of cancer.
Response is a poor outcome measure of immunotherapy, according to Tanguy Seiwert, MD, who addressed this and other concerning issues in immunotherapy at the 2016 Multidisciplinary Head and Neck Cancer Symposium.
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