[Development of a standardized guide for optimizing drug adherence information to be dispensed during a...

An initial validation of a standardized pharmaceutical counselling guide was carried out in a previous study to improve medication adherence in patients treated for multiple myeloma with oral anticancer therapies. The main objective of this work was the final validation of this guide with 10 naive patients. The main secondary objectives were to assess for the patient the evolution of knowledge about the treatment, understanding of the purpose of the pharmaceutical counselling, adherence to the tools. Each patient completed a self-administered questionnaire: before and after the first pharmaceutical counselling. The primary endpoint was the average success rate per question after the pharmaceutical counselling (a value of ≥ 90% validated knowledge acquisition). Secondary judgement criteria were: change in average success rates per patient and question, rate of reformulation of the objective of the pharmaceutical counselling, response rate to presentation questions, readability and understanding. No average success rate per question after the pharmaceutical counselling was statistically less than 90%. The average success rates per patient before and after the pharmaceutical counselling were 78.9±13.7% vs 96.1±3.9% (P=0.01). The average success rates per question were different for 4 questions. All patients were able to reformulate the objective of the pharmaceutical counselling and validated the presentation, readability and understanding of the documents. This study led to the final validation of the pharmaceutical counselling guide.