Anipamil prevents ST depression in patients with stable angina pectoris.
The purpose of this study was to examine the 24-hour antiischemic efficacy of once-a-day anipamil compared to placebo in the treatment of patients with stable angina. The study was designed as a double-blind, placebo-controlled crossover study with an initial 3 week single-blind placebo period. The patients received anipamil 80 mg once daily, anipamil 160 mg once daily, and placebo in a randomized order. At the end of each treatment period the patients underwent 24-hour ambulatory ECG recording. Nineteen patients were included, all with typical stable angina pectoris for at least 2 months, exercise test with > or = 0.10 mV horizontal or down-sloping ST-segment depression and limited by angina pectoris, and at least 10 attacks of angina pectoris in the initial single-blind placebo period. During the placebo period, a total duration of transient myocardial ischemia > or = 0.10 mV during the 24-hour ambulatory ECG monitoring period was 2263 minutes, 75% of which were asymptomatic. Anipamil 80 mg and 160 mg significantly reduced the duration of episodes to 712 minutes (p < 0.001), with 87% asymptomatic, and to 913 minutes (p > 0.001), with 92% asymptomatic, respectively. In conclusion, anipamil given once a day is an effective 24-hour antiischemic drug in the treatment of transient myocardial ischemia.
Larsen
C T
CT
Department of Cardiology, Hvidovre University Hospital, Copenhagen, Denmark.
Sørum
C
C
Rasmussen
V
V
Fischer Hansen
J
J
D000368:Aged; D000787:Angina Pectoris / Q000097:blood / Q000188:drug therapy*; D002121:Calcium Channel Blockers / Q000009:adverse effects / Q000097:blood / Q000627:therapeutic use*; D004311:Double-Blind Method; D004334:Drug Administration Schedule; D015716:Electrocardiography, Ambulatory / Q000187:drug effects*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017202:Myocardial Ischemia / Q000517:prevention & control; D010919:Placebos; D011437:Propylamines / Q000009:adverse effects / Q000097:blood / Q000627:therapeutic use*; D016037:Single-Blind Method
D002121:Calcium Channel Blockers; D010919:Placebos; D011437:Propylamines; C045313:anipamil