Waller D G, Challenor V F, Francis D A, Roath O S
Br J Clin Pharmacol. 1986 Oct;22(4):449-54. doi: 10.1111/j.1365-2125.1986.tb02916.x.
Thirty-four patients with Raynaud's phenomenon, 28 primary and six secondary, were entered into a double-blind placebo controlled, randomized cross-over trial of nifedipine treatment. Nifedipine was given as a 20 mg biphasic release formulation twice daily. Twenty-nine patients completed the study, during which the mean number of attacks was reduced by 25% during nifedipine treatment (P less than 0.001). Twenty patients scored nifedipine higher than placebo on a five point rating scale (P less than 0.001). Unwanted effects were experienced by 26 patients during active treatment, resulting in withdrawal from the study in five. Red cell deformability and fibrinogen concentrations were not altered by nifedipine.
34例雷诺现象患者(28例原发性,6例继发性)进入硝苯地平治疗的双盲安慰剂对照随机交叉试验。硝苯地平采用20mg双相释放制剂,每日2次给药。29例患者完成了研究,在此期间,硝苯地平治疗期间发作的平均次数减少了25%(P<0.001)。在五点评分量表上,20例患者对硝苯地平的评分高于安慰剂(P<0.001)。26例患者在积极治疗期间出现了不良反应,导致5例退出研究。硝苯地平未改变红细胞变形性和纤维蛋白原浓度。