Martin Vincent T, Valade Dominique, Almas Mary, Hettiarachchi Jayasena, Sikes Carolyn, Albert Kenneth S, Parsons Bruce
Division of General Internal Medicine, University of Cincinnati, Cincinnati, OH 45267-4217, USA.
Headache. 2007 Feb;47(2):181-8. doi: 10.1111/j.1526-4610.2006.00685.x.
To compare the efficacy and tolerability of eletriptan 20 mg, 40 mg, and 80 mg in triptan-naïve patients (who have not previously used triptans) versus triptan-experienced patients (who have previously used triptans).
Efficacy and tolerability data for eletriptan 20 mg, 40 mg, and 80 mg were pooled from 10 similarly designed, randomized, parallel-group studies, and triptan-naïve and triptan-experienced patients were compared with placebo across the 3 triptan doses. The primary efficacy endpoint was headache response at 2 hours postdose. Secondary efficacy endpoints were 2-hour pain-free response, 2-hour absence of associated symptoms, 2-hour functional response, 24-hour sustained headache response, and 24-hour sustained pain-free response.
For eletriptan 20 mg, 40 mg, and 80 mg versus placebo, respectively, triptan-naïve patients showed significantly higher 2-hour headache response (54%, 61%, 66% vs. 31%; P < .0001), 2-hour pain-free response (20%, 28%, and 31% vs. 8%; P < .0001), and 24-hour sustained headache response (34%, 45%, and 51% vs. 20%; P < .0001). A similarly significant efficacy advantage was also observed in the triptan-experienced subgroup for 2-hour headache response (46%, 63%, 69% vs. 21%; P < .0001), 2-hour pain-free response (13%, 32%, and 38% vs. 4%; P < .0001), and 24-hour sustained headache response (29%, 41%, and 45% vs. 9%; P < .0001). Previous treatment status did not influence tolerability, and all 3 doses of eletriptan were well tolerated.
These data suggest that eletriptan has comparable efficacy versus placebo among both triptan-naïve and triptan-experienced patients.
比较20毫克、40毫克和80毫克依立曲坦在初用曲坦类药物患者(此前未使用过曲坦类药物)与曾用曲坦类药物患者(此前使用过曲坦类药物)中的疗效和耐受性。
汇总10项设计相似的随机平行组研究中20毫克、40毫克和80毫克依立曲坦的疗效和耐受性数据,将初用曲坦类药物和曾用曲坦类药物的患者在3种曲坦类药物剂量下与安慰剂进行比较。主要疗效终点为给药后2小时的头痛缓解情况。次要疗效终点为2小时无痛缓解、2小时无相关症状、2小时功能改善、24小时持续头痛缓解及24小时持续无痛缓解。
与安慰剂相比,对于20毫克、40毫克和80毫克依立曲坦,初用曲坦类药物的患者在给药后2小时的头痛缓解率显著更高(分别为54%、61%、66%对31%;P <.0001),2小时无痛缓解率(分别为20%、28%和31%对8%;P <.0001),以及24小时持续头痛缓解率(分别为34%、45%和51%对20%;P <.0001)。在曾用曲坦类药物的亚组中,对于给药后2小时的头痛缓解率(分别为46%、63%、69%对21%;P <.0001),2小时无痛缓解率(分别为13%、32%和38%对4%;P <.0001),以及24小时持续头痛缓解率(分别为29%、41%和45%对9%;P <.0001),也观察到了类似的显著疗效优势。既往治疗状态不影响耐受性,所有3种剂量的依立曲坦耐受性均良好。
这些数据表明,在初用曲坦类药物和曾用曲坦类药物的患者中,依立曲坦与安慰剂相比疗效相当。