Merck (NYSE: MRK), known as MSD outside of the United States and Canada, and Eisai today announced the U.S. Food and Drug Administration (FDA) has approved the dual oral regimen of WELIREG® (belzutifan), Merck’s first-in-class oral hypoxia-inducible factor-2 alpha (HIF-2α) inhibitor, plus LENVIMA® (lenvatinib), the orally available multiple receptor tyrosine kinase inhibitor (TKI) discovered by Eisai, for the treatment of adult patients with advanced renal cell carcinoma with a clear cell compon