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Usage et mésusage dans la prescription des antidépresseurs : l’apport des bases de données

Abstract : Considering the large increase in antidepressant use observed in the last decades, the question of good or poor usage of antidepressants is of importance. The three studies presented in this report consisted into a descriptive analysis of the increase in the use of antidepressants in different countries, and thereafter analyse the underlying mechanisms. Our analysis of sales database indicates that the increase in antidepressants volume differ from country to country, but follows a classical scheme with rapid increase until stabilisation to a certain threshold and that national policies to ensure expenditure limitations has a different impact on the volume depending on the maturity of the market. The analyses performed afterwards on US claims databases, and show that if improper use of antidepressants is a reality, it does not seem to correspond to a massive off-label use but rather to an incorrect use of antidepressants: treatment without precise diagnosis, isolated prescription which suggest undue treatment, treatment for too short periods of time with regards to international guidelines which recommend at least 6 month to avoid relapse or recurrence of the disease. The analyses we have conducted on databases can serve as a basis for the development of a reliable tool to evaluate drug consumption (sales databases) or drug use (claims databases) : simple and rapid use of sales databases to get a mapping of consumption in their environment, and more complex and time consuming use of claims database to gain an understanding of practice. Used in routine, the sales monitoring tools could play a role to alert public health services on abnormal evolution of drug consumption and allow the initiation of more refined analyses either on large claims databases or through prospective cohort of patients in order to characterise the practice and gain an understanding on the drivers of drug use.
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Dominique Milea. Usage et mésusage dans la prescription des antidépresseurs : l’apport des bases de données. Médecine humaine et pathologie. Université Claude Bernard - Lyon I, 2010. Français. ⟨NNT : 2010LYO10322⟩. ⟨tel-00713137⟩

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