Brod Staley Armstrong, Morales Miriam M
Department of Neurology, University of Texas-Houston, Health Science Center (UTHHSC), Houston, TX 77030, USA.
Biomed Pharmacother. 2009 May;63(4):251-3. doi: 10.1016/j.biopha.2008.08.022. Epub 2008 Sep 17.
IM Acthar Gel (Acthar) is a natural-source ACTH used for the treatment of MS exacerbations. It is not known if subcutaneous (SQ) administration of Acthar is equivalent to IM administration or if lower doses of Acthar would provide comparable serum cortisol responses.
We compared IM and SQ administration of Acthar to explore bio-equivalency between the two routes of administration.
Our results show that SQ administration of Acthar is bio-equivalent to IM administration. Both 20 and 80 units of Acthar, respectively, show bio-equivalency after SQ and IM administration. However, 20 units of Acthar do not provide comparable stimulation of the adrenal cortex compared to 80 units, administered either SQ or IM.
Bio-equivalency between IM and SQ administration may allow the use of SQ Acthar.
IM Acthar Gel(Acthar)是一种用于治疗多发性硬化症发作的天然来源促肾上腺皮质激素。目前尚不清楚皮下(SQ)注射Acthar是否等同于肌肉注射,以及较低剂量的Acthar是否能产生相当的血清皮质醇反应。
我们比较了Acthar的肌肉注射和皮下注射,以探讨两种给药途径之间的生物等效性。
我们的结果表明,Acthar的皮下注射与肌肉注射具有生物等效性。Acthar分别使用20单位和80单位时,皮下注射和肌肉注射后均显示出生物等效性。然而,与皮下或肌肉注射80单位的Acthar相比,20单位的Acthar对肾上腺皮质的刺激作用相当。
肌肉注射和皮下注射之间的生物等效性可能允许使用皮下注射的Acthar。