MERCK announced that the Committee for Medicinal Products for Human Use of the European Medicines Agency adopted a positive opinion recommending approval of Keytruda (pembrolizumab) for the first-line treatment of metastatic non-small cell lung cancer in adults whose tumors have high PD-L1 expression (tumor proportion score [TPS] of 50 percent or more) with no EGFR or ALK positive tumor mutations.
In April 2025, announcements from the two most influential biomedical agencies in the US, the FDA and the NIH, declared that both will seek to reduce and minimize animal-based testing and experimentation. These declarations sparked joy in some circles, and deep concern in others that was reflected in a 28% fall in the share price of Charles River Labs (NYSE: NYSE:CRL).
