Short patent lives jeopardize drug and patient safety

Exposure of patients to new medications carries potential safety hazards during widespread clinical practice. These are often detected only after a substantial period of use. Thus, there is considerable need for measures reducing drug-related morbidity and mortality, such as adequate, active postmarketing drug-safety surveillance systems with obligatory follow-up studies of suspected safety problems, or even an additional "Phase IV" safety study before marketing. However, drug development processes erode substantially into the useful patent life of a new drug. Therefore, we suggest that the potential benefits of patent life prolongation should be considered, under certain conditions for the sake of patient safety.