Serious safety issues relating to drugs are communicated to health-care professionals via Direct Health-Care Professional Communications (DHPCs). We explored which characteristics determined the impact of DHPCs issued in the Netherlands for ambulatory-care drugs (2001-2008). With multiple linear regression, we examined the impact on the relative change in new drug use post-DHPC of the following: time to DHPC, trend in use, degree of innovation, specialist drug, first/repeated DHPC, DHPC template, and type of safety issue. DHPCs have less impact on use of specialist drugs than nonspecialist drugs (P < 0.05). The DHPCs' impact increased after availability of a template emphasizing the main problem (P < 0.05), and for safety issues with a risk of death and/or disability (both P < 0.05) (adjusted R= 0.392). Risk communication can be effective, specifically in case of well-structured information, and very serious safety issues. Effectiveness may improve by tailoring DHPCs and adding other communication channels, for example for drugs that are increasingly being used.

doi.org/10.1038/clpt.2012.262, hdl.handle.net/1765/57879
Clinical Pharmacology and Therapeutics
Department of Medical Informatics

Reber, K., Piening, S., Wieringa, J., Straus, S., Raine, K., de Graeff, P., … Mol, P. (2013). When direct health-care professional communications have an impact on inappropriate and unsafe use of medicines. Clinical Pharmacology and Therapeutics, 93(4), 360–365. doi:10.1038/clpt.2012.262