AACR Annual Meeting 2019: Optimizing PD-1/PD-L1 Immune Checkpoint Inhibitor Therapy

Immune checkpoint inhibitors have become part of the standard of care for more than 14 different cancer types, including melanoma, lung cancer, head and neck cancer, bladder cancer, cervical cancer, liver cancer, stomach cancer, breast cancer, lymphoma, and to treat patients with any type of solid tumor that is microsatellite instability–high or mismatch repair–deficient. In a clinical trial plenary session held April 1 at the AACR Annual Meeting 2019, titled “Optimizing PD-1/PD-L1 Immune Checkpoint Inhibitor Therapy: Dedicated to the Memory of Waun Ki Hong,” cancer researchers updated attendees on the latest advances in the utility of this class of immunotherapeutics, either as monotherapy or in combination with other treatment modalities.

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Recent Advances in Measuring Response to Immune Checkpoint Inhibitors

In recent years, the U.S. Food and Drug Administration has approved immune checkpoint inhibitors, a class of immunotherapy, to treat 10 different types of cancer, in addition to solid tumors located anywhere in the body that have certain DNA damage and repair-related biomarkers. However, only a small percentage of patients respond to these treatments, and they can have significant side effects. Researchers are looking for biomarkers that can identify patients who are likely to respond to immune checkpoint inhibitors.

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