Reasons for monitoring the effect of drug therapy

Reasons for monitoring the effect of drug therapy Conducting clinical trials is a mandatory condition for evaluating the efficacy and safety of new medicinal products, with the aim of authorizing them for use and placing them on the market. During clinical trials, strict criteria and requirements are defined regarding the inclusion and exclusion of patients who are followed for a certain period of time. When a new medicinal product is launched on the market, a much wider group of patients have access to treatment than in clinical trials. These patients may have co-morbidities, take other medicinal products that could affect the effect of therapy with the new drug. The observation of these patients in the real therapeutic practice allows to report the results and the effect of the innovative therapy, and to guarantee the rational medicinal use.