Más R, Castaño G, Illnait J, Fernández L, Fernández J, Alemán C, Pontigas V, Lescay M
Center of Natural Products, National Center for Scientific Research, Havana City, Cuba.
Clin Pharmacol Ther. 1999 Apr;65(4):439-47. doi: 10.1016/S0009-9236(99)70139-6.
This study was undertaken to evaluate the efficacy, safety, and tolerability of policosanol, a new cholesterol-lowering drug, in patients with type II hypercholesterolemia and additional coronary risk factors.
After 5 weeks of a standard step-1 lipid-lowering diet, 437 patients were randomized to receive, under double-blind conditions, 5 mg policosanol or placebo once a day with the evening meal for 12 weeks and 10 mg policosanol or placebo for the next 12 weeks.
Both groups were similar at randomization. Policosanol (5 and 10 mg/day) significantly reduced (P < .001) serum low-density lipoprotein cholesterol (18.2% and 25.6%, respectively) and cholesterol (13.0% and 17.4%), and it significantly raised (P < .01) high-density lipoprotein cholesterol (15.5% and 28.4%). Triglycerides remained unchanged after the first 12 weeks and lowered significantly (5.2%; P < .01) at study completion. Policosanol was safe and well tolerated, and no drug-related disturbances were observed. Two male patients who received placebo died during the study--one because of a myocardial infarction and the other because of a cardiac arrest that occurred during a surgical intervention. There were 11 serious adverse events (5.1%) in 10 patients who received placebo (4.6%), 7 of which were vascular, compared with no serious adverse events reported in patients receiving policosanol (P < .01).
Subjects in the group treated with policosanol did not have serious adverse events during the 24-week study. This study shows that policosanol is effective, safe, and well tolerated in patients with hypercholesterolemia and concomitant coronary risk factors.
本研究旨在评估新型降胆固醇药物聚多卡醇对II型高胆固醇血症及伴有其他冠心病危险因素患者的疗效、安全性和耐受性。
在进行5周标准的一级降脂饮食后,437例患者被随机分组,在双盲条件下,晚餐时每日一次服用5毫克聚多卡醇或安慰剂,持续12周,接下来的12周服用10毫克聚多卡醇或安慰剂。
随机分组时两组情况相似。聚多卡醇(5毫克/天和10毫克/天)显著降低(P <.001)血清低密度脂蛋白胆固醇(分别降低18.2%和25.6%)和胆固醇(分别降低13.0%和17.4%),并显著升高(P <.01)高密度脂蛋白胆固醇(分别升高15.5%和28.4%)。前12周甘油三酯保持不变,研究结束时显著降低(5.2%;P <.01)。聚多卡醇安全且耐受性良好,未观察到与药物相关的干扰。两名接受安慰剂的男性患者在研究期间死亡——一名死于心肌梗死,另一名死于手术干预期间发生的心脏骤停。接受安慰剂的10例患者(4.6%)出现11起严重不良事件(5.1%),其中7起为血管性不良事件,而接受聚多卡醇的患者未报告严重不良事件(P <.01)。
在为期24周的研究中,接受聚多卡醇治疗的组中受试者未出现严重不良事件。本研究表明,聚多卡醇对高胆固醇血症及伴有冠心病危险因素的患者有效、安全且耐受性良好。