[Therapeutic drug plans: how many and which ones? Overview of a prescriptive and care appropriateness tool.]

Therapeutic plans (TPs) were introduced in Italy in 2004 in order to ensure the continuity in the prescription of new drugs between specialist physicians and general practitioners (GPs). Over the years this prescription tool was updated several times: starting from a paper form without any template ("paper TP") to a template defined by AIFA to collect specific clinical information, up to a web-based form to collect all information into a database. Over time-critical issues concerning its usefulness have been raised, especially when AIFA established several extensions for TP validity to ensure the social distancing required by the covid-19 pandemic. Therefore, after several years from their establishment, pending adoption of necessary implementing of Ministerial Decree of 25th March 2020, a check of the actual impact of TPs is required, in order to plan their review. This study provide a detailed overview of all TPs active in Italy at the 11th May 2020. From Farmadati database, all drugs reimbursed by the National Health Service (class A drugs) and requiring TP were selected. The consumption of these drugs has been derived from OsMed Reports that make available data of medicines consumption and expenditure in the general population in Italy. The analysis showed that TP is required for the prescription of 935 medicinal products (9.6% of class-A drugs) and 147 different active substances (belonging to 34 different Therapeutic Groups and 66 subgroups). Out of these, 67 (46%) required a paper TP without any template, 72 (49%) a paper TP on AIFA template, and 8 (5%) a web-based TP. The Therapeutic Group with the largest number of active ingredients with TP were antidiabetics (19.7%), followed by immunomodulating and immunosuppressants (9.5%) and medications for asthma and COPD (6.8%). Consumption analysis of drugs with TP showed that this prescription tool covers 943,899,598 DDD per year, equal to 2,586,026 DDD/day. This means that TPs have a very high impact in terms of the prevalence of patients treated on the entire care process. Of all annual DDDs prescribed on TP, 46.8% concerned drugs with TP on template AIFA, 34.5% drugs with web-based TP, while the remaining 18.7% drugs with paper TP without a template. This analysis may provide the basis for an analytical case-by-case review of TP maintenance needs, trying to maximize the benefits of this tool and to reduce its possible adverse effects. This review could be helpful to ensure the appropriateness in the drug uses, to enhance the role of general medicine, and to simplify the pathways of millions of patients ensuring the continuity of their care.