Development of advanced steady-state operation scenarios in tokamaks requires real time control of the plasma profiles, e.g. temperature, pressure, rotation and current profiles. Recent experiments devoted to the first real time profile control of Internal Transport Barriers (ITB) in JET are described in this paper. The dimensionless ratio of the ion gyro-radius to the local gradient scale length of the electron temperature has been recently shown to characterise satisfactorily and with a low computational cost the main ITB features [1]. In the first section we report briefly the experimental device used to obtain in real time the electron temperature profile as well as the definition of the dimensionless ratio and its implementation in the real time system at JET. Then in the second section, the emphasis is laid on the main experimental conditions and the results obtained in scenarios with different plasma current and toroidal field.