Validation protocol of the LESS-CHRON deprescription tool in multimorbidity patients. LESS-CHRON-VALIDATION Project.

Objective: Deprescribing is considered one of the main strategies available for  preparing an individualized therapeutic plan in patients with multiple pathologies or complex chronic conditions. However, despite the practice has been in place for some years, there is a need for studies that support the achievement of satisfactory health outcomes, as well as tools that help implement deprescribing in routine clinical practice. The  bjective of this project is to analyze the impact of reducing polypharmacy,  through the LESS-CHRON deprescribing tool, on a population  of elderly polymedicated patients with multiple conditions.

Method: This will be a quasi-experimental, pre-and-post intervention multicenter cohort study. The variables to be analyzed will be  divided into two large groups: those related to pharmacology and those related to health outcomes. They will be collected at baseline, at 3 and at 6-12  months. A first screening phase will be carried out to recruit candidate patients  and obtain information about the identified deprescribing  opportunities. The second phase will constitute the intervention phase, where  the LESS-CHRON tool will be applied and the actual deprescribing of the drugs  will be carried out.

Discussion: LESS-CHRON has been proclaimed as a suitable deprescribing tool in clinical practice. Validation of LESS-CHRON will seek to show the results that can be achieved following the deprescribing of drugs,  in addition to demonstrating that the tool can reliably be used by clinicians in  their routine practice. On the other hand, the results of this project may  provide information leading to improving or adapting the tool itself, giving rise  to a second generation of more efficient version.