The cardiovascular safety profile of escitalopram
2013
Abstract The cardiovascular effects of escitalopram were examined in a large group of participants in double-blind, randomized, placebo-controlled studies. Escitalopram ( n =3298) was administered at doses between 5 and 20 mg/day. Patients were treated in acute (8–12 weeks) and long-term (24 weeks) studies. Assessment of cardiovascular safety included heart rate, blood pressure (BP), treatment-emergent adverse events (TEAEs) and electrocardiograms (ECGs). In the short-term, there was a small, but statistically significant 2 beats per minute decrease in heart rate with escitalopram compared with placebo. The difference compared to placebo in systolic or diastolic BP was not clinically or statistically significant. Valid ECG assessments at both baseline and last assessment were available for 2407 escitalopram patients and 1952 placebo patients. Escitalopram–placebo differences in mean changes in ECG values were not clinically meaningful. The mean difference to placebo in the corrected QT [Fridericia's (QTcF)] interval was 3.5 ms (all escitalopram doses); 1.3 ms (escitalopram 10 mg) and 1.7 ms (escitalopram 20 mg) ( p =0.2836 for 10 versus 20 mg). One out of 2407 escitalopram patients had a QTcF interval >500 ms and a change from baseline >60 ms. The incidence and types of cardiac-associated adverse events were similar between patients treated for 8–12 weeks with placebo (2.2%) or escitalopram (1.9%) and for 24 weeks with placebo (2.7%) or escitalopram (2.3%). Analyses of data from long-term studies and studies of the elderly showed similar results. In conclusion, these data demonstrate that escitalopram, like other SSRIs, has a statistically significant effect on heart rate and no clinically meaningful effect on ECG values, BP, with a placebo-level incidence of cardiac-associated adverse events.
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