Mike Frost has stepped down from his position as director of Generation Media Exchange Ltd. with immediate effect.
"Mike has been a well-respected and important member of the Team and has contributed enormously not only to the successful development of GMX but also to improving the media Buying and Planning performance on those clients that he has worked on," said the firm's chief executive Dean Weller.
"Currently, Mike is bravely fighting, as is his nature, serious illness and everyone in the Group wishes him and his family well in this regard."
Whilst Mike will not be continuing in front-line media duties, he will continue to be involved in the Toy and Retail business in hisvown potential new adventures outside that of media planning and buying.
"Mike will always be welcome at Generation Media Group and of course we all wish him the best for the future," the firm added, in their statement.