The Institute for Public Policy Research will urge the Government to create a service for teenagers and their parents similar to Sure Start in a report due out next week.

The influential think-tank's Lever Faberge Families 2004 report will warn that the achievements of Sure Start will be at risk if support vanishes when young people reach adolescence. Sure Start provides services mainly to children up to the age of 10.

The report proposes a new service, Sure Progress, to provide young people and their families with levels of support similar to Sure Start.

Kate Stanley, head of social policy at the institute, said: "Parents tell us they face the toughest time when their children are 10 to 15 years old. There needs to be a service to help young people and their families with the transition."