Cardiovascular safety of drugs not intended for cardiovascular use: need for a new conceptual basis for assessment and approval.

Recently, several drugs for non-cardiovascular diseases have ceased marketing because of cardiovascular risk, highlighting the importance of evaluating the cardiovascular safety of new drugs even if not intended for cardiovascular diseases. Assessing and ensuring acceptable cardiovascular safety of non-cardiovascular drugs is difficult; nonetheless, governmental regulatory agencies are likely to change the requirements for drug safety information. This article explores our recommendations for rethinking current regulatory policies, emphasizing the need for mandatory post-marketing surveillance registries and highlighting the exposures necessary to subserve the need for greater assessment of safety issues.