Haas S, Stemberger A W, Fritsche H M, Wendt P, Blümel G
Institut für Experimentelle Chirurgie der Technischen Universität München, Germany.
Semin Thromb Hemost. 1991;17 Suppl 2:214-8.
In a double-blind study the dose-dependent effect of 10, 20, 40, and 70 mg of SSHA was tested in volunteers. Whereas only a minor prolongation of the aPTT was noted, a clear anti-factor Xa effect was proven (method of Yin), as well as the release of lipoprotein lipase. In a subsequent study, 12 volunteers were treated daily with a dose of 40 mg for 11 days. On the first day of treatment a dosage of 40 mg SC was administered three times every 90 min. There was no cumulative effect with this dose and a clear plateau effect was recorded daily after each application. Repeated administration therefore results in an identical reproducible effect. Thus, no tachyphylaxis occurred under long-term treatment with 40 mg SSHA.
在一项双盲研究中,对志愿者测试了10毫克、20毫克、40毫克和70毫克SSHA的剂量依赖性效应。虽然仅观察到部分活化部分凝血活酶时间(aPTT)稍有延长,但已证实存在明显的抗Xa因子效应(尹氏方法),以及脂蛋白脂肪酶的释放。在随后的一项研究中,12名志愿者每天接受40毫克剂量治疗,持续11天。治疗第一天,皮下注射40毫克,每90分钟给药3次。该剂量无累积效应,每次给药后每天均记录到明显的平台效应。因此,重复给药会产生相同的可重复效应。所以,长期使用40毫克SSHA治疗未出现快速耐受性。