The Brief The FDA approved Merck's Keytruda Qlex, a new under-the-skin version of the cancer drug that can be injected in just 1-2 minutes, offering faster and more convenient treatment than traditional IV infusions. Keytruda Qlex showed similar effectiveness to the IV version in clinical trials. Keytruda Qlex gets FDA approvalThe new version, called Keytruda Qlex, is an injection that can be administered in as little as a minute or two depending on dosage, compared to IV infusion that typically takes about 30 minutes. When will Keytruda Qlex be availabe? What's next:Merck expects to have Keytruda Qlex available in the U.S. in late September.