
She was previously brand advertising manager for the IPC Southbank women's glossy.
Her new position involves working closely with Marie Claire's fashion partners and driving the magazine's presence in the fashion sector.
Assucena will report to advertising director Nicole Waudby and will work closely with the magazine's international representation companies and key editorial figureheads.
Assucena joined Marie Claire nine years ago as UK fashion manager, before moving to the role of international fashion manager.