Minocycline to improve neurologic outcome in stroke (MINOS): a dose-finding study.
Minocycline to improve neurologic outcome in stroke (MINOS): a dose-finding study.
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DOI:
10.1161/strokeaha.110.582601
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发表时间:
2010-10
期刊:
影响因子:
8.3
通讯作者:
Hess DC
中科院分区:
文献类型:
--
作者:
Fagan SC;Waller JL;Nichols FT;Edwards DJ;Pettigrew LC;Clark WM;Hall CE;Switzer JA;Ergul A;Hess DC
Minocycline is a promising anti-inflammatory and protease inhibitor that is effective in multiple pre-clinical stroke models. We conducted an early phase trial of intravenous (IV) minocycline in acute ischemic stroke. Following an open label, dose escalation design, minocycline was administered IV within 6 hours of stroke symptom onset in preset dose tiers of 3, 4.5, 6, or 10 mg/kg daily over 72 hours. Minocycline concentrations for pharmacokinetic analysis were measured in a subset of patients. Subjects were followed for 90 days. Sixty patients were enrolled, 41 at the highest dose tier of 10 mg/kg. Overall age (65±13.7), race (83% white) and sex (47% female) were consistent across the doses. The mean baseline NIHSS was 8.5±5.8 and 60% received tPA. Minocycline infusion was well tolerated with only 1 dose limiting toxicity at the 10 mg/kg dose. No severe hemorrhages occurred in tPA treated patients. Pharmacokinetic analysis (n=22) revealed a half life of about 24 hours and linearity of parameters over doses. 1.) Minocycline is safe and well tolerated up to doses of 10 mg/kg IV alone and in combination with tPA. 2.) The half life of minocycline is about 24 hours, allowing every 24 hour dosing. 3.) Minocycline may be an ideal agent to use with tPA.