It works with the immune system to attack cancer cells A person must have no egfr, alk, or ros1 genetic mutations, and their cancer must either be locally advanced (with no options for surgical removal or chemoradiation) or metastatic (spread to other parts of the body). This second protein is found on some immune system cells, which can help the cancer cells avoid being found by the immune system.
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Libtayo is approved by the u.s