Blocking the interaction between two dengue virus (DENV) nonstructural proteins, NS3 and NS4B, with a newly developed small-molecule inhibitor resulted in potent antiviral activity in mouse models, according to an international collaborative study led by scientists at the University of Leuven (KU Leuven), CD3 the Centre for Drug Design and Discovery in Leuven, and Janssen Pharmaceutica in Beerse, Belgium.

If the FDA follows the advice of its Antimicrobial Drugs Advisory Committee, Takeda Pharmaceutical Co. Ltd.’s antiviral drug, maribavir, will become the first drug approved in the U.S. to treat resistant or refractory cytomegalovirus infection and disease in both solid organ and hematopoietic stem cell transplant recipients. The committee voted 17-0 that the overall benefit-risk assessment favors the use of maribavir for transplant patients with refractory CMV infections both with and without genotypic resistance to the four antivirals currently used off-label to treat the infections – ganciclovir, valganciclovir, foscarnet and cidofovir.