RobertReny

The U.S. Food and Drug Administration (FDA) approved the first-ever therapy for the treatment of a rare disease called tenosynovial giant cell tumors (TGCT).

Keytruda and Opdivo both are proven immunotherapy drug, as both are potent and proven drug they often recommended for each other alternative. 23% of patients who received Keytruda drug survived at least five years more, in the past only was 5% patient survived.
Source – https://www.myhealthyclick.com/newer-drugs-improve-survival-chances-for-people-with-lung-breast-prostate-cancers/