On the therapy effect for a stochastic growth Gompertz-type model

► From a stochastic Gompertz model, we consider the inclusion of a therapy function. ► The effect of the therapy on some characteristics of the process is analyzed. ► The first-passage-time problem through time-dependent boundaries is analyzed. ► Some particular therapies and boundaries of interest are been considered. ► An application to real data based on rabbit growth is presented.