Entries for the awards, which honour truly transformative comms work on the global stage, had originally been requested by 5 January, but may now be submitted until 24 January.
However, entries submitted after 5 January will incur a late fee of £100 per entry.
It has also been announced that the awards ceremony will take place on 11 May at 8 Northumberland Avenue in London's Westminster. Tickets go on sale in February.
At last year's awards, PepsiCo won in-house team of the year and Weber Shandwick was named global agency of the year, while its sister Interpublic group firm Golin won four awards, as did Ketchum.
This year, the campaign categories have been expanded to accept entries for both local and multi-territory campaigns, and two new categories have been created - Global Integration and Global Content.
Whether you're in healthcare PR, brand marketing, non-profit campaigning or public sector comms, there are categories to suit you, with a range of accolades to be handed out to individuals, agencies, in-house teams and campaigns themselves.
- More information about the categories and the awards night itself is available at PRWeekGlobalAwards.com