Background and Objectives Rasagiline tablet is an oral MAO-B inhibitor applied in early or advanced Parkinson's disease (PD). However, when patients with PD cannot take their usual oral medications, a rasagiline transdermal patch can be used as a way to offer continuous rasagiline while avoiding plasma concentration peaks and troughs. The objectives of this study were to investigate the pharmacokinetics, pharmacodynamics, and safety of the rasagiline transdermal patch in healthy Chinese subjects. Methods This single-dose, open-label, randomized, parallel-group study was conducted in 15 healthy subjects. Fasted subjects received a single dose of rasagiline (either by transdermal patch-1.25 mg/24 h, 1.25 mg/48 h, 2.5 mg/48 h, or 2.5 mg/72 h, or orally-in the form of a 1-mg tablet) and were monitored over a 168-h observation period to assess pharmacokinetics, pharmacodynamics, and safety. Results After administration of a single-dose rasagiline transdermal patch, the mean terminal elimination half-life (t(1/2)) was 6.06-9.41 h, which was longer than with the 1-mg tablet dose (2.32 +/- 0.28 h). The mean dose-normalized maximum plasma concentration (C-max,C-norm(dose)) of the 1-mg tablet dose was twofold higher than that of the transdermal patch groups. The mean dose-normalized areas under the concentration-time curve (AUC(norm(dose))) of 1.25 and 2.5 mg for the rasagiline transdermal patch doses were fourfold and sevenfold higher than that of the 1-mg tablet dose, respectively. Cumulative urinary excretion was about 0.2% of the total dose. Inhibition of MAO-B activity was dose dependent, and the maximal inhibition was 73.9-94.1% at doses ranging from 1.25 to 2.5 mg. The reported adverse events were mild or moderate. Conclusion The prolonged t1/2, increased AUC(0-t), and more stable plasma drug concentration of the rasagiline patch may permit a longer dosing interval compared to the oral tablet. The rasagiline transdermal patch was safe and well tolerated in healthy Chinese subjects.
基金:
This study was sponsored by Chongqing Pharmaceutical
Co., LTD, Chongqing, China
第一作者机构:[1]Clinical Pharmacology Laboratory, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Suzhou 215004, China
共同第一作者:
通讯作者:
通讯机构:[1]Clinical Pharmacology Laboratory, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Suzhou 215004, China
推荐引用方式(GB/T 7714):
Wenjia Zhou,Chengzhe Lv,Quanying Zhang,et al.Pharmacokinetics, Pharmacodynamics, and Safety of Rasagiline Transdermal Patch: A Preliminary Study in Healthy Chinese Subjects[J].CLINICAL DRUG INVESTIGATION.2018,38(2):125-133.doi:10.1007/s40261-017-0588-y.
APA:
Wenjia Zhou,Chengzhe Lv,Quanying Zhang,Shunlin Zong&Meng Wang.(2018).Pharmacokinetics, Pharmacodynamics, and Safety of Rasagiline Transdermal Patch: A Preliminary Study in Healthy Chinese Subjects.CLINICAL DRUG INVESTIGATION,38,(2)
MLA:
Wenjia Zhou,et al."Pharmacokinetics, Pharmacodynamics, and Safety of Rasagiline Transdermal Patch: A Preliminary Study in Healthy Chinese Subjects".CLINICAL DRUG INVESTIGATION 38..2(2018):125-133