The campaign, which will be the first released since the charity changed its name from Leukaemia Research, will include a new logo and an updated set of guidelines outlining how Leukaemia and Lymphoma Research can lead the way in helping to fight blood cancers over the coming 50 years.
Euro RSCG has worked with Leukaemia and Lymphoma Research for 12 years, and recently joined the charity's president Sir Ian Botham on the last leg of his "Great Forget-Me-Not" fundraising walk, in which the ex-England cricketer walked between 10 towns over 10 days.
The annual walk is currently in its 25th year, and hopes to help the charity raise £120m over the next five years.
Cathy Gilman, chief executive of Leukaemia and Lymphoma Research, said: "The effort Euro RSCG Life took in really understanding the charity and the rigour of the research conducted will help us to meet the huge amount of money needed over the next five years."