Merck & Co., Inc. has been hoping to break into the pre-exposure prophylaxis (PrEP) market for people at high risk of HIV-1 infection with its first-in-class nucleoside reverse transcriptase translocation inhibitor (NRTTI) islatravir, but the company announced it is pausing enrollment in more studies testing the drug, broadening the setback for the program.
The company said on 6 December that it is pausing enrollment in two Phase III clinical trials, IMPOWER 22 and...






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