Double pharmacological challenge on repolarization opens new avenues for drug safety research

Publikation: Bidrag til tidsskriftTidsskriftartikel

The pharmaceutical industry is testing new potential drugs for their propensity to prolong human cardiac repolarization, and regards this as a sign of proarrhythmic risk. Many studies have dethroned the common perception that prolonged repolarization is a reliable surrogate marker for torsades de pointes (TdP) arrhythmia. Both the pharmaceutical industry and the regulatory bodies are neglecting the available proarrhythmia models. In vitro studies have suggested that combined pharmacological hits on repolarization will produce a superior substrate for in vivo proarrhythmia, compared to the single-drug assessment. By using consecutive pharmacological challenges, a simple model is proposed, in which combinatorial pharmacology is employed to provoke TdP in the conscious dog. The pharmaceutical industry interested in evaluating the proarrhythmic potential of their present and future drugs now has a simple means of doing so.
OriginalsprogEngelsk
TidsskriftBritish Journal of Pharmacology
Vol/bind151
Udgave nummer7
Sider (fra-til)909-11
Antal sider3
ISSN0007-1188
DOI
StatusUdgivet - aug. 2007

ID: 45965505