红花黄色素冻干粉针剂与红花黄色素滴注液治疗冠心病心绞痛(心血瘀阻证)的临床非劣性试验

Clinical Nonferiority Evaluation on the Efficacy and Safety of Safflower Yellow Pigment Lyophilized Power & Dripping Solution in the Treatment of Patients with Angina

目的评价红花黄色素冻干粉针剂与红花黄色素滴注液治疗冠心病心绞痛(心血瘀阻证)的有效性和安全性,并与阳性对照药丹参注射液作非劣性分析.方法选择每周心绞痛发作2次以上的Ⅰ、Ⅱ、Ⅲ级稳定型劳累性心绞痛者784例进行分层分段随机、盲法、同一阳性药对照、五组平行、多中心的非劣性临床试验,其中试验组1纳入224例,采用红花黄色素冻干粉剂80 mg + 0.9% NS 250 ml静滴,每日1次;试验组2纳入112例,采用红花黄色素冻干粉针剂160 mg + 0.9% NS 250 ml静滴,每日1次;试验组3纳入112例,采用红花黄色素滴注液200 ml(160 mg)静滴,每日1次;试验组4纳入224例,采用红花黄色素滴注液100 ml(80 mg)静滴,每日1次.对照组纳入112例,给予丹参注射液20 ml + 0.9% NS 250 ml静滴,每日1次.治疗14天后,评价各试验组及其对照组的临床有效性和安全性.结果治疗心绞痛疗效(PP数据):试验组1～4与对照组相比,其显效率为分别为53.27%、69.44%、70.09%、55.09%和26.00%,总有效率分别为88.79%、92.59%、93.46%、89.81%和73.00%.试验组1与试验组2比较、试验组3与试验组4比较、试验组1～4分别与对照组比较,其差异均有统计意义(P<0.05),试验组2的疗效优于试验组1,试验组3的疗效优于试验组4,4个试验组的疗效均优于对照组,非劣性检验合格(P＜0.01);ITT分析除试验组3与试验组4的疗效无统计学差异外,其余与PP分析相同.临床试验中,试验组2、3、4各发现1例不良反应,对照组发现10例不良反应.结论红花黄色素冻干粉针剂与红花黄色素滴注液对冠心病心绞痛(心血瘀阻证)患者疗效确切,效果不劣于丹参注射液;临床试验中尚未发现明显毒副作用.

Objective To evaluate the efficacy and safety of safflower yellow pigment lyophilized power & dripping solution in the treatment of patients with angina, by using parenteral solution of Dan-shen root extraction as control, we designed the nonferiority clinical trial phase Ⅲ. Method 784 patients with stable angina pectoris Ⅰ, Ⅱ, Ⅲ degree and occurred more than twice per week were selected. They were randomly, stratified and blindly assigned into 5 parallel groups including one control. They were treated by using safflower yellow pigment lyophilized power (SYPLP) 80 mg + 0.9% NS 250ml, intravenously guttae, daily (trial group 1); SYPLP 160 mg + 0.9% NS 250 ml, intravenously guttae, daily (trial group 2); safflower yellow pigment lyophilized dripping solution (SYPLDS) 200 ml (160 mg), intravenously guttae, daily (trial group 3); SYPLDS 100 ml (80 mg), intravenously guttae, daily (trial group 4) and parenteral solution of Dan-shen root extraction 20 ml + 0.9% NS 250 ml, intravenously guttae, daily (control group) respectively. Efficacy and safety were evaluated after 14 days of continuous treatment. Results The angina efficacy (per-protocol population, PP): The notable effective rates of trial groups 1 to 4 and control group were 53.27%,69.44%,70.09%,55.09%and 26.00% respectively, and the effective rates were 88.79%,92.59%,93.46%,89.81% and 73.00% respectively。There was significant differences between trial group 1 and 2, trial group 3 and 4. All trial groups showed significant different effect when compared with control (P<0.05). The effect of trial group 2 was better than those of trial group 1, and trial group 3 better than trial group 4, the four trial groups better than control group. The intention-to-treat (ITT) analysis result was almost the same to PP analysis, but trial group 3 showed no significant difference to trial group 4. In trial group 2, 3 and 4, each occurred one adverse effect, while the number was 10 in control group.Conclusion SYPLP & SYPLDS have certain effect on angina. They are more effective than parenteral solution of Dan-shen root extraction. No toxic side effect has been found in clinic tests.