In equities, Novavax ( NVAX ) shares nosedived 84% pre-bell after the biotech company reported that its RSV F vaccine candidate missed its primary or secondary efficacy targets in a late-stage testing. U.S. stock futures edged lower on Friday as traders await for the release of key inflation and consumer sentiment data, seen as factors in the Federal Reserve's interest rate deliberations on Wednesday. At 10:00 a.m., the University of Michigan will release the results of its consumer sentiment survey for September which are expected to show index level of between 89.4 to 92.0.